I want to share with you yet another tool this one will help you with the architecture development. The tool is called Structure 101 and you can download a trial version here. That’s right, this tool is not free, but it does it’s job really well and at the time I can’t think of a free alternative that would be just as good. If you do know any good alternative, please, do leave a comment.

Another day – another lesson learned. Today I tried to optimize Apache HTTP server configuration in a sense to write less configuration to achieve the same result. Of course I messed up the first few times since I’m not really an admin and don’t have that much experience doing that. Typically relying on short configuration samples and snippets does the trick, but it’s not always the best way to do things.

This is yet another post on Apache httpd server installation and configuration. I say another because I’ve already written about how to install the packaged version of Apache for two specific linux distros. This time I’ll quickly jot down how I configured and compiled Apache for my needs. There are a few reasons to do this. One of the more important ones being to have a newer version of Apache. It seems that prepackaged Apache versions for some linux distributions can be quite out of date.

The Environment From time to time I need to do some Apache httpd + Tomcat installations on Linux servers and usually they come in different flavors. While you’re still experimenting it’s a good idea to use a pre-installed Linux on a virtual machine. I’m using the free VMware player to run virtual appliances, a list of which can be found on VMware page. Personally I like the clean Linux installations without any extras, this way you can install anything you need and create multiple virtual machines of the same Linux flavor with different purposes if you need to.

I want to share with you yet another tool this one will help you with the architecture development. The tool is called Structure 101 and you can download a trial version here. That’s right, this tool is not free, but it does it’s job really well and at the time I can’t think of a free alternative that would be just as good. If you do know any good alternative, please, do leave a comment.

This post is a continuation on my quest for applications that help me do more by doing less. After choosing and installing an application launcher mentioned in my previous post the next thing I wanted to do is automate a few tasks that I do several times a day. Each one takes a while and throughout the day this adds up. The worst thing is that sometimes another person distracts you from what you were doing and then it takes a while to get back into it.

Recently I’ve been thinking about how quickly technical books go out of date or sometimes just can keep up with the new versions of software constantly being released. I do like holding in my hands a nice printed book and enjoying the process of reading it, but for IT books it’s just a whole different story. You don’t usually need to read the entire book cover-to-cover, most often these books are used as references to help solve a specific problem.

Java has a useful tool for generating private-public key pair, it’s called keytool and is located in your jdk/bin directory. Here’s a command line that I often use to generate keys and self-signed certificates for testing. $ keytool -genkey -keyalg RSA -validity 365 -alias MyKey -keystore new_keystore.jks -dname "CN=SubjectName, OU=My Department, O=My Company, L=Vilnius, S=Vilnius, C=LT" Also it is sometimes needed to generate a request to get a signed certificate. Having created a keystore as shown above, it is easily done with the following line.

If you’re using Google Chrome browser from the so-called developer channel (i.e. beta version) now you can enjoy the improved PDF support. The thing is that with all the buzz around the PDF format (in)security a lot of companies seem to have taken some steps in providing a more secure user experience for PDF viewing. Since most of the attacks using PDF files are targeted towards the Adobe Reader we’ve seen a lot of updates for the viewer this year.

This one is for the security conscious. If you are performing a hardening procedure for your OS, application/web server, other applications you might wonder how are other people doing that and where can you draw the line by saying that it is secure-enough. A great place of resource in such a case is the CIS Security specifically their resources download page. There you’ll find a form that allows you to choose and download a whole bunch of security benchmarks for various products like Apache HTTP server, Tomcat, Apple OSX, FreeBSD, Windows OSes, Firefox, MySQL, Oracle and various others.

A little while ago I finally got around to bringing order to the mess called my photo library. They were scattered across multiple machines, disks and SD cards. First thing’s first - I moved all files to one place so it’s easier to work with. In retrospect, I’m glad I did this clean up on my nVME disk - this saved me quite a bit of time. DISCLAIMER Some of the tools discussed here can delete/overwrite files you didn't intend when used incorrectly.

From time to time I like checking out the bleeding edge version of some software. Firefox is always a good candidate for that, because of the many improvements in performance and features. I downloaded the Firefox 3.7a nightly build from http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/. It’s seems pretty stable on my computer and is obviously faster. Sunspider tests confirm my expectations of increased javascript performance which is roughly 40% faster than Firefox 3.5.5 on my machine.

Another day – another lesson learned. Today I tried to optimize Apache HTTP server configuration in a sense to write less configuration to achieve the same result. Of course I messed up the first few times since I’m not really an admin and don’t have that much experience doing that. Typically relying on short configuration samples and snippets does the trick, but it’s not always the best way to do things.

If you’re using a profiles.xml file to store your profiles and want to migrate from Maven 2.0.x to Maven 2.1.x or later chances are you’ll run into a build failure. In my case the error message was “Reason: Failed to activate local (project-level) build profiles: Cannot parse profiles.xml resource from directory: …” The root cause of this from the stack trace might look like this: Caused by: org.codehaus.plexus.util.xml.pull.XmlPullParserException: Expected root element 'profilesXml' but found 'profiles' (position: START_TAG seen <?

OK, this is a simple one, but I sometimes forget, because usually you do it once on any computer and then don’t think about it. Firefox is a great browser and what’s even more great is that it allows you to create different profiles so you can have different configurations/add-ons/layouts for general browsing, web development, extension development, etc. The first step is to create a new profile which can be done by typing

When dealing with source code from projects of various sizes the disk quickly gets filled up with literally tens or even hundreds of thousands of files. Especially when the project is under source control and has metadata files for each of the project’s file. While you may still have a lot of disk space left on the drive I found that this kind of setup is highly inefficient when jumping from file to file in an IDE or doing a full text search.

When dealing with source code from projects of various sizes the disk quickly gets filled up with literally tens or even hundreds of thousands of files. Especially when the project is under source control and has metadata files for each of the project’s file. While you may still have a lot of disk space left on the drive I found that this kind of setup is highly inefficient when jumping from file to file in an IDE or doing a full text search.

Recently I needed to do some server manipulation over the SSH-2 protocol from a Java client program. There are quite a few choices of SSH libraries for Java out there. Usually I prefer BSD license whenever possible, so I thought I’ll give Ganymed SSH-2 for Java a try. It turned out to be pretty simple to use. Here’s a short example of how to connect to the server using the private key and execute some command.

This one took me a while to get it right the first time. I won’t go into details of configuring iBatis datasources and such, and will go straight to putting some queries in the sqlMap file. Just let me note that I’m using iBatis 2.3 for these examples. I’ll start off with a procedure call. <procedure id="getUserRoles" parameterMap="myParamMap"> { call SCHEMA.GET_USERS_ROLES(?, ?) } </procedure> This one is pretty self-explanatory, just defining a procedure to be called.

Maven is an awesome build tool for JAVA, but it has some long parameter names that I don’t like to remember, so I put my often used tasks of maven in batch files. install.bat mvn install:install-file -Dfile=%1 -DgroupId=%2 -DartifactId=%3 -Dversion=%4 -Dpackaging=pom -DgeneratePom=true This installs the specified .jar file in the local repository located in C:\Documents and Settings\*User*\.m2\repository where *User* is your username. Four arguments are required: jar_file, group, artifact and version.

After writing about keyboard oriented software I’ve been doing a little experiment for a few weeks now and I thought I’d share the results. I’ve been using a little program called Click Counter, well actually it’s a compiled AutoHotKey script which I found on this forum. Source for the script is available if you don’t like the idea of using an executable found on some forum. My idea was to track all my mouse clicks throughout the day and see how much I can reduce the amount of times I reach for the roddent. The Click Counter tool only produces data as a text file, but it’s way more fun to see some graphical representation of my clicking habits, so I threw together a simple Java program that reads the produced log file from the Click Counter and outputs a nice graph with monthly mean average. It’s done with maven and contains .bat files to further simplify the building and running process. So without further ado here are my results

From time to time I like checking out the bleeding edge version of some software. Firefox is always a good candidate for that, because of the many improvements in performance and features. I downloaded the Firefox 3.7a nightly build from http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/. It’s seems pretty stable on my computer and is obviously faster. Sunspider tests confirm my expectations of increased javascript performance which is roughly 40% faster than Firefox 3.5.5 on my machine.

Here I’ll just put my most used Firefox add-on list. Actually two lists – one for web development related add-ons and the other for general surfing and enjoying the web. Developer’s add-ons Web Developer Firebug Firecookie YSlow iMacros PageDiff Tamper Data Greasemonkey DOM Inspector InspectThis Surfing add-ons StumbleUpon Delicious Bookmarks Adblock Plus Fire.fm Video DownloadHelper Cooliris Clipmarks Rikaichan Screengrab TwitterFox There’s also this more official list of add-ons for Firefox categorized by the things you do on the web.

OK, this is a simple one, but I sometimes forget, because usually you do it once on any computer and then don’t think about it. Firefox is a great browser and what’s even more great is that it allows you to create different profiles so you can have different configurations/add-ons/layouts for general browsing, web development, extension development, etc. The first step is to create a new profile which can be done by typing

Just found out about Firefox 3 Download Day and wanted to do my part by spreading the word. They’re trying to set a Guinness World Record for most software downloads in 24 hours. Sounds pretty simple, just download a great browser and help achieve the record. You can also follow the Firefox news on twitter.

As always there are too many ideas in my head, stuff I want to learn, books and blogs I want to read, things I want to share with others. When there’s too much going on it becomes more difficult to write about any of those, but I’m trying to become more organized so I’ll do my best to post regularly and more often, whenever I have something to say. I’ve found some really cool free online magazines about BSD operating systems and hacking:

Recently I’ve been thinking about how quickly technical books go out of date or sometimes just can keep up with the new versions of software constantly being released. I do like holding in my hands a nice printed book and enjoying the process of reading it, but for IT books it’s just a whole different story. You don’t usually need to read the entire book cover-to-cover, most often these books are used as references to help solve a specific problem.

A little while ago I bought an HDTV and was looking for a nice media player and a conversion tool to help me enjoy it. As I already had paid for the TV, I assumed that free software would be nice. Here’s what I found that works for me. The role of the media player or media center was quickly filled by a program called Boxee which is generally described as a cross-platform freeware media center and includes features like social networking, lets you view, recommend and rate the videos you watch.

In this post I want to share with you a few tools which in my opinion are really useful. A while ago I found this page called FileHippo that contains a lot of free software and they even maintain older versions which is great for when you’re searching for a particular version of some tool and can’t find anywhere else. But the really nice thing is that now they have this program called Update Cheker which you can download and install on you machine and it will analyze the software that you have installed and present you with a list of possible updates including the beta versions as a separate section.

A while ago found this great page that aggregates various posts relevant to developers. Just to remind myself and maybe let others know, if you haven’t seen it definitely check it out – http://www.dzone.com Recently I had the need to alter an SVG file that was produced by someone else. Now although you can do this by opening it in a text editor and make the changes by hand, but you would need to know the SVG tags, attributes, etc and more complex graphical changes are just too difficult.

Another day – another lesson learned. Today I tried to optimize Apache HTTP server configuration in a sense to write less configuration to achieve the same result. Of course I messed up the first few times since I’m not really an admin and don’t have that much experience doing that. Typically relying on short configuration samples and snippets does the trick, but it’s not always the best way to do things.

This is yet another post on Apache httpd server installation and configuration. I say another because I’ve already written about how to install the packaged version of Apache for two specific linux distros. This time I’ll quickly jot down how I configured and compiled Apache for my needs. There are a few reasons to do this. One of the more important ones being to have a newer version of Apache. It seems that prepackaged Apache versions for some linux distributions can be quite out of date.

The Environment From time to time I need to do some Apache httpd + Tomcat installations on Linux servers and usually they come in different flavors. While you’re still experimenting it’s a good idea to use a pre-installed Linux on a virtual machine. I’m using the free VMware player to run virtual appliances, a list of which can be found on VMware page. Personally I like the clean Linux installations without any extras, this way you can install anything you need and create multiple virtual machines of the same Linux flavor with different purposes if you need to.

This one took me a while to get it right the first time. I won’t go into details of configuring iBatis datasources and such, and will go straight to putting some queries in the sqlMap file. Just let me note that I’m using iBatis 2.3 for these examples. I’ll start off with a procedure call. <procedure id="getUserRoles" parameterMap="myParamMap"> { call SCHEMA.GET_USERS_ROLES(?, ?) } </procedure> This one is pretty self-explanatory, just defining a procedure to be called.

When dealing with source code from projects of various sizes the disk quickly gets filled up with literally tens or even hundreds of thousands of files. Especially when the project is under source control and has metadata files for each of the project’s file. While you may still have a lot of disk space left on the drive I found that this kind of setup is highly inefficient when jumping from file to file in an IDE or doing a full text search.

This time around I want to share with you a little Python library I found called PIL. If you’re a Python developer chances are you already know of it, but I use Python only from time to time, usually to automate some tasks so I was very excited to come across such a library. First thing’s first, download PIL and install it. I’m using it on a Windows platform so I used the packaged binary version, but you can get the source code and use it on any platform that supports Python.

Recently I watched this webinar about Tomcat 7 presented by Mark Thomas and would like to share my thoughts on the subject and what I’ve learned. Servlet 3.0 The most prominent change is the support of Servlet 3.0 specification which supports such great features as asynchronous servlets – not used by default web-fragment.xml – you can specify parts of the configuration in your libraries which you plan to reuse The effective deployment descriptor (web.

I want to share with you yet another tool this one will help you with the architecture development. The tool is called Structure 101 and you can download a trial version here. That’s right, this tool is not free, but it does it’s job really well and at the time I can’t think of a free alternative that would be just as good. If you do know any good alternative, please, do leave a comment.

The Environment From time to time I need to do some Apache httpd + Tomcat installations on Linux servers and usually they come in different flavors. While you’re still experimenting it’s a good idea to use a pre-installed Linux on a virtual machine. I’m using the free VMware player to run virtual appliances, a list of which can be found on VMware page. Personally I like the clean Linux installations without any extras, this way you can install anything you need and create multiple virtual machines of the same Linux flavor with different purposes if you need to.

A little while ago I was developing a small application from which I wanted to reuse the Spring beans that are defined in a context of another application. I thought this might be useful for someone so here’s a short explanation of how I achieved this result. Both applications were deployed on Tomcat 6.0.18, but I don’t think that minor version number differences would have much of an impact on the technique.

Today I tried out the new Maven-3.0-alpha-6 on a multi-module project which uses profiles inside POM files and profiles.xml file. The first thing I noticed that Maven3 still uses the .m2 directory for local repository. I kind of thought they would change that, but I guess this is good for backward compatibility. Another thing that immediately strikes you is that Maven became more strict. I was getting warning messages because the POM file wasn’t living up to Maven’s standards of well defined build script.

If you’re using a profiles.xml file to store your profiles and want to migrate from Maven 2.0.x to Maven 2.1.x or later chances are you’ll run into a build failure. In my case the error message was “Reason: Failed to activate local (project-level) build profiles: Cannot parse profiles.xml resource from directory: …” The root cause of this from the stack trace might look like this: Caused by: org.codehaus.plexus.util.xml.pull.XmlPullParserException: Expected root element 'profilesXml' but found 'profiles' (position: START_TAG seen <?

In an ever-growing sea of parameters that one needs to memorize for tens or even hundreds of command-line programs I decided to keep a list of some of the more useful and frequently used Maven parameters in case I forget anything. This should be run from a parent POM’s directory. It lets you view the POM file that would be in effect if you were building the project. The result is a composite POM containing all your child POMs that you defined as modules in the parent POM.

Recently I needed to do some server manipulation over the SSH-2 protocol from a Java client program. There are quite a few choices of SSH libraries for Java out there. Usually I prefer BSD license whenever possible, so I thought I’ll give Ganymed SSH-2 for Java a try. It turned out to be pretty simple to use. Here’s a short example of how to connect to the server using the private key and execute some command.

Java has a useful tool for generating private-public key pair, it’s called keytool and is located in your jdk/bin directory. Here’s a command line that I often use to generate keys and self-signed certificates for testing. $ keytool -genkey -keyalg RSA -validity 365 -alias MyKey -keystore new_keystore.jks -dname "CN=SubjectName, OU=My Department, O=My Company, L=Vilnius, S=Vilnius, C=LT" Also it is sometimes needed to generate a request to get a signed certificate. Having created a keystore as shown above, it is easily done with the following line.

This one took me a while to get it right the first time. I won’t go into details of configuring iBatis datasources and such, and will go straight to putting some queries in the sqlMap file. Just let me note that I’m using iBatis 2.3 for these examples. I’ll start off with a procedure call. <procedure id="getUserRoles" parameterMap="myParamMap"> { call SCHEMA.GET_USERS_ROLES(?, ?) } </procedure> This one is pretty self-explanatory, just defining a procedure to be called.

Maven is an awesome build tool for JAVA, but it has some long parameter names that I don’t like to remember, so I put my often used tasks of maven in batch files. install.bat mvn install:install-file -Dfile=%1 -DgroupId=%2 -DartifactId=%3 -Dversion=%4 -Dpackaging=pom -DgeneratePom=true This installs the specified .jar file in the local repository located in C:\Documents and Settings\*User*\.m2\repository where *User* is your username. Four arguments are required: jar_file, group, artifact and version.

Very basic, but sometimes useful javascript object introspection <img id="test"> <script type="text/javascript" language="JavaScript"> el = document.getElementById('test'); str = ''; for (i in el) str += i+'; '; alert(str); </script>

Recently I watched this webinar about Tomcat 7 presented by Mark Thomas and would like to share my thoughts on the subject and what I’ve learned. Servlet 3.0 The most prominent change is the support of Servlet 3.0 specification which supports such great features as asynchronous servlets – not used by default web-fragment.xml – you can specify parts of the configuration in your libraries which you plan to reuse The effective deployment descriptor (web.

After writing about keyboard oriented software I’ve been doing a little experiment for a few weeks now and I thought I’d share the results. I’ve been using a little program called Click Counter, well actually it’s a compiled AutoHotKey script which I found on this forum. Source for the script is available if you don’t like the idea of using an executable found on some forum. My idea was to track all my mouse clicks throughout the day and see how much I can reduce the amount of times I reach for the roddent. The Click Counter tool only produces data as a text file, but it’s way more fun to see some graphical representation of my clicking habits, so I threw together a simple Java program that reads the produced log file from the Click Counter and outputs a nice graph with monthly mean average. It’s done with maven and contains .bat files to further simplify the building and running process. So without further ado here are my results

This post is a continuation on my quest for applications that help me do more by doing less. After choosing and installing an application launcher mentioned in my previous post the next thing I wanted to do is automate a few tasks that I do several times a day. Each one takes a while and throughout the day this adds up. The worst thing is that sometimes another person distracts you from what you were doing and then it takes a while to get back into it.

Last week I set out to find the best tools I could to increase my overall productivity when doing my everyday tasks and I want to share my experience. When writing this I quickly realized that putting everything in one chunk would make it quite long and as a fan of blog post brevity I decided to split it into a few posts. This one will cover applications that allow you to quickly launch other programs on your machine.

Last week I set out to find the best tools I could to increase my overall productivity when doing my everyday tasks and I want to share my experience. When writing this I quickly realized that putting everything in one chunk would make it quite long and as a fan of blog post brevity I decided to split it into a few posts. This one will cover applications that allow you to quickly launch other programs on your machine.

Recently I needed to do some server manipulation over the SSH-2 protocol from a Java client program. There are quite a few choices of SSH libraries for Java out there. Usually I prefer BSD license whenever possible, so I thought I’ll give Ganymed SSH-2 for Java a try. It turned out to be pretty simple to use. Here’s a short example of how to connect to the server using the private key and execute some command.

This one took me a while to get it right the first time. I won’t go into details of configuring iBatis datasources and such, and will go straight to putting some queries in the sqlMap file. Just let me note that I’m using iBatis 2.3 for these examples. I’ll start off with a procedure call. <procedure id="getUserRoles" parameterMap="myParamMap"> { call SCHEMA.GET_USERS_ROLES(?, ?) } </procedure> This one is pretty self-explanatory, just defining a procedure to be called.

Maven is an awesome build tool for JAVA, but it has some long parameter names that I don’t like to remember, so I put my often used tasks of maven in batch files. install.bat mvn install:install-file -Dfile=%1 -DgroupId=%2 -DartifactId=%3 -Dversion=%4 -Dpackaging=pom -DgeneratePom=true This installs the specified .jar file in the local repository located in C:\Documents and Settings\*User*\.m2\repository where *User* is your username. Four arguments are required: jar_file, group, artifact and version.

A little while ago I finally got around to bringing order to the mess called my photo library. They were scattered across multiple machines, disks and SD cards. First thing’s first - I moved all files to one place so it’s easier to work with. In retrospect, I’m glad I did this clean up on my nVME disk - this saved me quite a bit of time. DISCLAIMER Some of the tools discussed here can delete/overwrite files you didn't intend when used incorrectly.

I decided to write down a short introduction to Xming. For those not in the know Xming is an implementation of the X Window System for Microsoft Windows operating systems. This means that you can install this software on Windows, run a remote linux program that requires a graphical interface and see the result on your local computer. Visit the Xming home page and see the screenshots if it seems difficult to wrap your mind around the concept.

This is yet another post on Apache httpd server installation and configuration. I say another because I’ve already written about how to install the packaged version of Apache for two specific linux distros. This time I’ll quickly jot down how I configured and compiled Apache for my needs. There are a few reasons to do this. One of the more important ones being to have a newer version of Apache. It seems that prepackaged Apache versions for some linux distributions can be quite out of date.

The Environment From time to time I need to do some Apache httpd + Tomcat installations on Linux servers and usually they come in different flavors. While you’re still experimenting it’s a good idea to use a pre-installed Linux on a virtual machine. I’m using the free VMware player to run virtual appliances, a list of which can be found on VMware page. Personally I like the clean Linux installations without any extras, this way you can install anything you need and create multiple virtual machines of the same Linux flavor with different purposes if you need to.

Another day – another lesson learned. Today I tried to optimize Apache HTTP server configuration in a sense to write less configuration to achieve the same result. Of course I messed up the first few times since I’m not really an admin and don’t have that much experience doing that. Typically relying on short configuration samples and snippets does the trick, but it’s not always the best way to do things.

Today I tried out the new Maven-3.0-alpha-6 on a multi-module project which uses profiles inside POM files and profiles.xml file. The first thing I noticed that Maven3 still uses the .m2 directory for local repository. I kind of thought they would change that, but I guess this is good for backward compatibility. Another thing that immediately strikes you is that Maven became more strict. I was getting warning messages because the POM file wasn’t living up to Maven’s standards of well defined build script.

If you’re using a profiles.xml file to store your profiles and want to migrate from Maven 2.0.x to Maven 2.1.x or later chances are you’ll run into a build failure. In my case the error message was “Reason: Failed to activate local (project-level) build profiles: Cannot parse profiles.xml resource from directory: …” The root cause of this from the stack trace might look like this: Caused by: org.codehaus.plexus.util.xml.pull.XmlPullParserException: Expected root element 'profilesXml' but found 'profiles' (position: START_TAG seen <?

In an ever-growing sea of parameters that one needs to memorize for tens or even hundreds of command-line programs I decided to keep a list of some of the more useful and frequently used Maven parameters in case I forget anything. This should be run from a parent POM’s directory. It lets you view the POM file that would be in effect if you were building the project. The result is a composite POM containing all your child POMs that you defined as modules in the parent POM.

Maven is an awesome build tool for JAVA, but it has some long parameter names that I don’t like to remember, so I put my often used tasks of maven in batch files. install.bat mvn install:install-file -Dfile=%1 -DgroupId=%2 -DartifactId=%3 -Dversion=%4 -Dpackaging=pom -DgeneratePom=true This installs the specified .jar file in the local repository located in C:\Documents and Settings\*User*\.m2\repository where *User* is your username. Four arguments are required: jar_file, group, artifact and version.

After writing about keyboard oriented software I’ve been doing a little experiment for a few weeks now and I thought I’d share the results. I’ve been using a little program called Click Counter, well actually it’s a compiled AutoHotKey script which I found on this forum. Source for the script is available if you don’t like the idea of using an executable found on some forum. My idea was to track all my mouse clicks throughout the day and see how much I can reduce the amount of times I reach for the roddent. The Click Counter tool only produces data as a text file, but it’s way more fun to see some graphical representation of my clicking habits, so I threw together a simple Java program that reads the produced log file from the Click Counter and outputs a nice graph with monthly mean average. It’s done with maven and contains .bat files to further simplify the building and running process. So without further ado here are my results

As always there are too many ideas in my head, stuff I want to learn, books and blogs I want to read, things I want to share with others. When there’s too much going on it becomes more difficult to write about any of those, but I’m trying to become more organized so I’ll do my best to post regularly and more often, whenever I have something to say. I’ve found some really cool free online magazines about BSD operating systems and hacking:

This one is for the security conscious. If you are performing a hardening procedure for your OS, application/web server, other applications you might wonder how are other people doing that and where can you draw the line by saying that it is secure-enough. A great place of resource in such a case is the CIS Security specifically their resources download page. There you’ll find a form that allows you to choose and download a whole bunch of security benchmarks for various products like Apache HTTP server, Tomcat, Apple OSX, FreeBSD, Windows OSes, Firefox, MySQL, Oracle and various others.

If you’re using Google Chrome browser from the so-called developer channel (i.e. beta version) now you can enjoy the improved PDF support. The thing is that with all the buzz around the PDF format (in)security a lot of companies seem to have taken some steps in providing a more secure user experience for PDF viewing. Since most of the attacks using PDF files are targeted towards the Adobe Reader we’ve seen a lot of updates for the viewer this year.

A little while ago I bought an HDTV and was looking for a nice media player and a conversion tool to help me enjoy it. As I already had paid for the TV, I assumed that free software would be nice. Here’s what I found that works for me. The role of the media player or media center was quickly filled by a program called Boxee which is generally described as a cross-platform freeware media center and includes features like social networking, lets you view, recommend and rate the videos you watch.

From time to time I like checking out the bleeding edge version of some software. Firefox is always a good candidate for that, because of the many improvements in performance and features. I downloaded the Firefox 3.7a nightly build from http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/. It’s seems pretty stable on my computer and is obviously faster. Sunspider tests confirm my expectations of increased javascript performance which is roughly 40% faster than Firefox 3.5.5 on my machine.

Today I tried out the new Maven-3.0-alpha-6 on a multi-module project which uses profiles inside POM files and profiles.xml file. The first thing I noticed that Maven3 still uses the .m2 directory for local repository. I kind of thought they would change that, but I guess this is good for backward compatibility. Another thing that immediately strikes you is that Maven became more strict. I was getting warning messages because the POM file wasn’t living up to Maven’s standards of well defined build script.

Here I’ll just put my most used Firefox add-on list. Actually two lists – one for web development related add-ons and the other for general surfing and enjoying the web. Developer’s add-ons Web Developer Firebug Firecookie YSlow iMacros PageDiff Tamper Data Greasemonkey DOM Inspector InspectThis Surfing add-ons StumbleUpon Delicious Bookmarks Adblock Plus Fire.fm Video DownloadHelper Cooliris Clipmarks Rikaichan Screengrab TwitterFox There’s also this more official list of add-ons for Firefox categorized by the things you do on the web.

A little while ago I was developing a small application from which I wanted to reuse the Spring beans that are defined in a context of another application. I thought this might be useful for someone so here’s a short explanation of how I achieved this result. Both applications were deployed on Tomcat 6.0.18, but I don’t think that minor version number differences would have much of an impact on the technique.

This time around I want to share with you a little Python library I found called PIL. If you’re a Python developer chances are you already know of it, but I use Python only from time to time, usually to automate some tasks so I was very excited to come across such a library. First thing’s first, download PIL and install it. I’m using it on a Windows platform so I used the packaged binary version, but you can get the source code and use it on any platform that supports Python.

Here’s a simple implementation of “tail -f” UNIX command equivalent in python. I used it a lot on windows servers to monitor log files. The good thing is that it works over SMB (windows shares). #!/usr/bin/env python import sys, os, time def main(argv): if len(argv) < 2: print "Usage: tail filename.log" exit(1) try: fp = open(argv[1], "r") st_results = os.stat(argv[1]) st_size = st_results[6] fp.seek(st_size) while 1: where = fp.tell() line = fp.

A few days ago I needed to extract all strings from .java files and also thought that it would be a good idea to keep count how many times a string is used. So I came up with this simple python script. It’s kind of a quick and dirty solution, but it met my needs for the particular task. import sys, os, re from operator import itemgetter files = [] strings = {} exp = re.

This one is for the security conscious. If you are performing a hardening procedure for your OS, application/web server, other applications you might wonder how are other people doing that and where can you draw the line by saying that it is secure-enough. A great place of resource in such a case is the CIS Security specifically their resources download page. There you’ll find a form that allows you to choose and download a whole bunch of security benchmarks for various products like Apache HTTP server, Tomcat, Apple OSX, FreeBSD, Windows OSes, Firefox, MySQL, Oracle and various others.

As always there are too many ideas in my head, stuff I want to learn, books and blogs I want to read, things I want to share with others. When there’s too much going on it becomes more difficult to write about any of those, but I’m trying to become more organized so I’ll do my best to post regularly and more often, whenever I have something to say. I’ve found some really cool free online magazines about BSD operating systems and hacking:

Recently I’ve been thinking about how quickly technical books go out of date or sometimes just can keep up with the new versions of software constantly being released. I do like holding in my hands a nice printed book and enjoying the process of reading it, but for IT books it’s just a whole different story. You don’t usually need to read the entire book cover-to-cover, most often these books are used as references to help solve a specific problem.

A while ago found this great page that aggregates various posts relevant to developers. Just to remind myself and maybe let others know, if you haven’t seen it definitely check it out – http://www.dzone.com Recently I had the need to alter an SVG file that was produced by someone else. Now although you can do this by opening it in a text editor and make the changes by hand, but you would need to know the SVG tags, attributes, etc and more complex graphical changes are just too difficult.

One of the browsers I’m using on Windows is Safari and I found an interesting tweak for it, that makes popup links open in a new tab instead of a new window. Now I can’t credit the person who discovered this, because I lost the link, but here’s what you do. Go to C:\Documents and Settings\User\Application Data\Apple Computer\Safari\Preferences\ where User is your Windows username. Open the file com.apple.Safari.plist for modification and insert the lines below somewhere within the tag.

This one is for the security conscious. If you are performing a hardening procedure for your OS, application/web server, other applications you might wonder how are other people doing that and where can you draw the line by saying that it is secure-enough. A great place of resource in such a case is the CIS Security specifically their resources download page. There you’ll find a form that allows you to choose and download a whole bunch of security benchmarks for various products like Apache HTTP server, Tomcat, Apple OSX, FreeBSD, Windows OSes, Firefox, MySQL, Oracle and various others.

If you’re using Google Chrome browser from the so-called developer channel (i.e. beta version) now you can enjoy the improved PDF support. The thing is that with all the buzz around the PDF format (in)security a lot of companies seem to have taken some steps in providing a more secure user experience for PDF viewing. Since most of the attacks using PDF files are targeted towards the Adobe Reader we’ve seen a lot of updates for the viewer this year.

The Environment From time to time I need to do some Apache httpd + Tomcat installations on Linux servers and usually they come in different flavors. While you’re still experimenting it’s a good idea to use a pre-installed Linux on a virtual machine. I’m using the free VMware player to run virtual appliances, a list of which can be found on VMware page. Personally I like the clean Linux installations without any extras, this way you can install anything you need and create multiple virtual machines of the same Linux flavor with different purposes if you need to.

Recently I watched this webinar about Tomcat 7 presented by Mark Thomas and would like to share my thoughts on the subject and what I’ve learned. Servlet 3.0 The most prominent change is the support of Servlet 3.0 specification which supports such great features as asynchronous servlets – not used by default web-fragment.xml – you can specify parts of the configuration in your libraries which you plan to reuse The effective deployment descriptor (web.

Recently I watched this webinar about Tomcat 7 presented by Mark Thomas and would like to share my thoughts on the subject and what I’ve learned. Servlet 3.0 The most prominent change is the support of Servlet 3.0 specification which supports such great features as asynchronous servlets – not used by default web-fragment.xml – you can specify parts of the configuration in your libraries which you plan to reuse The effective deployment descriptor (web.

Recently I needed to do some server manipulation over the SSH-2 protocol from a Java client program. There are quite a few choices of SSH libraries for Java out there. Usually I prefer BSD license whenever possible, so I thought I’ll give Ganymed SSH-2 for Java a try. It turned out to be pretty simple to use. Here’s a short example of how to connect to the server using the private key and execute some command.

This one took me a while to get it right the first time. I won’t go into details of configuring iBatis datasources and such, and will go straight to putting some queries in the sqlMap file. Just let me note that I’m using iBatis 2.3 for these examples. I’ll start off with a procedure call. <procedure id="getUserRoles" parameterMap="myParamMap"> { call SCHEMA.GET_USERS_ROLES(?, ?) } </procedure> This one is pretty self-explanatory, just defining a procedure to be called.

Here’s a simple implementation of “tail -f” UNIX command equivalent in python. I used it a lot on windows servers to monitor log files. The good thing is that it works over SMB (windows shares). #!/usr/bin/env python import sys, os, time def main(argv): if len(argv) < 2: print "Usage: tail filename.log" exit(1) try: fp = open(argv[1], "r") st_results = os.stat(argv[1]) st_size = st_results[6] fp.seek(st_size) while 1: where = fp.tell() line = fp.

Very basic, but sometimes useful javascript object introspection <img id="test"> <script type="text/javascript" language="JavaScript"> el = document.getElementById('test'); str = ''; for (i in el) str += i+'; '; alert(str); </script>

A few days ago I needed to extract all strings from .java files and also thought that it would be a good idea to keep count how many times a string is used. So I came up with this simple python script. It’s kind of a quick and dirty solution, but it met my needs for the particular task. import sys, os, re from operator import itemgetter files = [] strings = {} exp = re.

A little while ago I was developing a small application from which I wanted to reuse the Spring beans that are defined in a context of another application. I thought this might be useful for someone so here’s a short explanation of how I achieved this result. Both applications were deployed on Tomcat 6.0.18, but I don’t think that minor version number differences would have much of an impact on the technique.

I decided to write down a short introduction to Xming. For those not in the know Xming is an implementation of the X Window System for Microsoft Windows operating systems. This means that you can install this software on Windows, run a remote linux program that requires a graphical interface and see the result on your local computer. Visit the Xming home page and see the screenshots if it seems difficult to wrap your mind around the concept.

Recently I needed to do some server manipulation over the SSH-2 protocol from a Java client program. There are quite a few choices of SSH libraries for Java out there. Usually I prefer BSD license whenever possible, so I thought I’ll give Ganymed SSH-2 for Java a try. It turned out to be pretty simple to use. Here’s a short example of how to connect to the server using the private key and execute some command.

In an ever-growing sea of parameters that one needs to memorize for tens or even hundreds of command-line programs I decided to keep a list of some of the more useful and frequently used Maven parameters in case I forget anything. This should be run from a parent POM’s directory. It lets you view the POM file that would be in effect if you were building the project. The result is a composite POM containing all your child POMs that you defined as modules in the parent POM.

Recently I watched this webinar about Tomcat 7 presented by Mark Thomas and would like to share my thoughts on the subject and what I’ve learned. Servlet 3.0 The most prominent change is the support of Servlet 3.0 specification which supports such great features as asynchronous servlets – not used by default web-fragment.xml – you can specify parts of the configuration in your libraries which you plan to reuse The effective deployment descriptor (web.

The Environment From time to time I need to do some Apache httpd + Tomcat installations on Linux servers and usually they come in different flavors. While you’re still experimenting it’s a good idea to use a pre-installed Linux on a virtual machine. I’m using the free VMware player to run virtual appliances, a list of which can be found on VMware page. Personally I like the clean Linux installations without any extras, this way you can install anything you need and create multiple virtual machines of the same Linux flavor with different purposes if you need to.

A little while ago I was developing a small application from which I wanted to reuse the Spring beans that are defined in a context of another application. I thought this might be useful for someone so here’s a short explanation of how I achieved this result. Both applications were deployed on Tomcat 6.0.18, but I don’t think that minor version number differences would have much of an impact on the technique.

This post is a continuation on my quest for applications that help me do more by doing less. After choosing and installing an application launcher mentioned in my previous post the next thing I wanted to do is automate a few tasks that I do several times a day. Each one takes a while and throughout the day this adds up. The worst thing is that sometimes another person distracts you from what you were doing and then it takes a while to get back into it.

Last week I set out to find the best tools I could to increase my overall productivity when doing my everyday tasks and I want to share my experience. When writing this I quickly realized that putting everything in one chunk would make it quite long and as a fan of blog post brevity I decided to split it into a few posts. This one will cover applications that allow you to quickly launch other programs on your machine.

When dealing with source code from projects of various sizes the disk quickly gets filled up with literally tens or even hundreds of thousands of files. Especially when the project is under source control and has metadata files for each of the project’s file. While you may still have a lot of disk space left on the drive I found that this kind of setup is highly inefficient when jumping from file to file in an IDE or doing a full text search.

Today I tried out the new Maven-3.0-alpha-6 on a multi-module project which uses profiles inside POM files and profiles.xml file. The first thing I noticed that Maven3 still uses the .m2 directory for local repository. I kind of thought they would change that, but I guess this is good for backward compatibility. Another thing that immediately strikes you is that Maven became more strict. I was getting warning messages because the POM file wasn’t living up to Maven’s standards of well defined build script.

In an ever-growing sea of parameters that one needs to memorize for tens or even hundreds of command-line programs I decided to keep a list of some of the more useful and frequently used Maven parameters in case I forget anything. This should be run from a parent POM’s directory. It lets you view the POM file that would be in effect if you were building the project. The result is a composite POM containing all your child POMs that you defined as modules in the parent POM.

A little while ago I bought an HDTV and was looking for a nice media player and a conversion tool to help me enjoy it. As I already had paid for the TV, I assumed that free software would be nice. Here’s what I found that works for me. The role of the media player or media center was quickly filled by a program called Boxee which is generally described as a cross-platform freeware media center and includes features like social networking, lets you view, recommend and rate the videos you watch.

In this post I want to share with you a few tools which in my opinion are really useful. A while ago I found this page called FileHippo that contains a lot of free software and they even maintain older versions which is great for when you’re searching for a particular version of some tool and can’t find anywhere else. But the really nice thing is that now they have this program called Update Cheker which you can download and install on you machine and it will analyze the software that you have installed and present you with a list of possible updates including the beta versions as a separate section.

Java has a useful tool for generating private-public key pair, it’s called keytool and is located in your jdk/bin directory. Here’s a command line that I often use to generate keys and self-signed certificates for testing. $ keytool -genkey -keyalg RSA -validity 365 -alias MyKey -keystore new_keystore.jks -dname "CN=SubjectName, OU=My Department, O=My Company, L=Vilnius, S=Vilnius, C=LT" Also it is sometimes needed to generate a request to get a signed certificate. Having created a keystore as shown above, it is easily done with the following line.

Here’s a simple implementation of “tail -f” UNIX command equivalent in python. I used it a lot on windows servers to monitor log files. The good thing is that it works over SMB (windows shares). #!/usr/bin/env python import sys, os, time def main(argv): if len(argv) < 2: print "Usage: tail filename.log" exit(1) try: fp = open(argv[1], "r") st_results = os.stat(argv[1]) st_size = st_results[6] fp.seek(st_size) while 1: where = fp.tell() line = fp.

A few days ago I needed to extract all strings from .java files and also thought that it would be a good idea to keep count how many times a string is used. So I came up with this simple python script. It’s kind of a quick and dirty solution, but it met my needs for the particular task. import sys, os, re from operator import itemgetter files = [] strings = {} exp = re.

I want to share with you yet another tool this one will help you with the architecture development. The tool is called Structure 101 and you can download a trial version here. That’s right, this tool is not free, but it does it’s job really well and at the time I can’t think of a free alternative that would be just as good. If you do know any good alternative, please, do leave a comment.

A little while ago I bought an HDTV and was looking for a nice media player and a conversion tool to help me enjoy it. As I already had paid for the TV, I assumed that free software would be nice. Here’s what I found that works for me. The role of the media player or media center was quickly filled by a program called Boxee which is generally described as a cross-platform freeware media center and includes features like social networking, lets you view, recommend and rate the videos you watch.

When dealing with source code from projects of various sizes the disk quickly gets filled up with literally tens or even hundreds of thousands of files. Especially when the project is under source control and has metadata files for each of the project’s file. While you may still have a lot of disk space left on the drive I found that this kind of setup is highly inefficient when jumping from file to file in an IDE or doing a full text search.

Another day – another lesson learned. Today I tried to optimize Apache HTTP server configuration in a sense to write less configuration to achieve the same result. Of course I messed up the first few times since I’m not really an admin and don’t have that much experience doing that. Typically relying on short configuration samples and snippets does the trick, but it’s not always the best way to do things.

The Environment From time to time I need to do some Apache httpd + Tomcat installations on Linux servers and usually they come in different flavors. While you’re still experimenting it’s a good idea to use a pre-installed Linux on a virtual machine. I’m using the free VMware player to run virtual appliances, a list of which can be found on VMware page. Personally I like the clean Linux installations without any extras, this way you can install anything you need and create multiple virtual machines of the same Linux flavor with different purposes if you need to.

I decided to write down a short introduction to Xming. For those not in the know Xming is an implementation of the X Window System for Microsoft Windows operating systems. This means that you can install this software on Windows, run a remote linux program that requires a graphical interface and see the result on your local computer. Visit the Xming home page and see the screenshots if it seems difficult to wrap your mind around the concept.

I decided to write down a short introduction to Xming. For those not in the know Xming is an implementation of the X Window System for Microsoft Windows operating systems. This means that you can install this software on Windows, run a remote linux program that requires a graphical interface and see the result on your local computer. Visit the Xming home page and see the screenshots if it seems difficult to wrap your mind around the concept.

I decided to write down a short introduction to Xming. For those not in the know Xming is an implementation of the X Window System for Microsoft Windows operating systems. This means that you can install this software on Windows, run a remote linux program that requires a graphical interface and see the result on your local computer. Visit the Xming home page and see the screenshots if it seems difficult to wrap your mind around the concept.