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Update: SQUID transparent SSL interception : Squid v3.2
In order to keep this blog post a bit more relevant, there have been some improvements since that post was written. Squid v3.2 has been released earlier this year, making ssl interception more seamless...
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Web MeetMe : Conferencing in FreePBX
The company I work for currently uses TrixBox as their VoIP server. It’s an excellent piece of software but being no longer supported, the decision was taken to upgrade to the later and more active...
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Python system tray notifications in Linux
As a follow up to my previous post, here’s how to accomplish system tray notifications in ubuntu linux and family. I must say, compared to windows, this is child’s play… under ten lines of code!...
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Lessons Learned : Linux System Tray Icons in python
While programming in python, for an Ubuntu/Linux Mint target, you may want to include a system tray icon for batter interaction with users. In Ubuntu, these are called “application indicators”. A basic...
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Connecting Ubuntu / Mint to exchange mail and calendar
Assumptions and pre-requisites. This article assumes the Linux user has the following installed: An Ubuntu derived distribution such as Ubuntu itself, Linux Mint, and so on The email client used is...
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Virtual Box Shared Folder between WinXP host and Ubuntu guest
This command really saved me a lot of time. Its easy enough sharing folders when both the host and guest machine are windows (Network Neighbourhood is used) But, when the host is windows XP and the...
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Measuring Bandwidth using Wireshark
There are of course several ways of measuring bandwidth usage from a particular PC. But when it comes to granularity and detail, almost nothing beats wireshark. Wireshark has several ways of showing...
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Symlinks in linux
The general concept of symlinks in linux is very similar to that of “shortcuts” in windows. After running the ln command, the source file is linked to the destination file. The “link” can be one of two...
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fsck to the rescue…
While transferring files to my new hardisk on my SheevaPlug, I made a couple of mistakes which cut off a file in mid-transfer. This of course resulted in the file being corrupted: As you can see above,...
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Video and Volume woes in Ubuntu : GMplayer and VLC
I finally moved my home laptop (an Acer Aspire) to Ubuntu 9.10. Everything ran smoothly and I was impressed at the ease of setup. This distro definitely has come a long way since I first tried it....
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External Seagate hard-disk in Ubuntu
Lately I noticed some weird behaviour when I attached my Seagate Freeagent external hard disk to my SheevaPlug server. The sheeva plug runs Ubuntu 9.04, and after a certain amount of time (about once a...
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Mobile broadband with Ubuntu, 3 UK and Nokia E63
Last year I decided to go get a Nokia E63 w/ unlimited data plan from 3 UK, and I’ve got to say I’m impressed The phone itself is quite a nifty little thing. Granted, not as blitzy and glam as your...
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Upgrading to Ubuntu 10.04 Beta2 / RC from 9.10
Last night I decided to take the leap and install Ubuntu 10.04 Lucid Lynx beta. The upgrade went pretty smoothly using the update-manager -d as recommended by the site’s instructions. However two...
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XOrg causing high CPU in Ubuntu
Nugget Post Having added the system monitor applet to my taskbar panel, turns out while running ubuntu my latop was running at about 40-50% CPU. Less than ideal considering Ubuntu should be speedy...
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Nuggest Post: Which programs / packages are needed to play WMV files in linux...
In order to play WMV files under Ubuntu, the easiest way I found was to download the following two packages via synaptic or apt-get: - w32codecs (from the medibuntu repository : http://medibuntu.org/)...
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Common operations using Estonian eID (Linux)
Assumptions: Using Ubuntu with OpenSC Installation Tip: Make sure to have installed OpenSC from source, rather than using the Ubuntu repositories (in other words, follow the instructions here [1]...
View ArticleNugget post: Checkinstall
Found an interesting link: http://www.linuxjournal.com/content/using-checkinstall-build-packages-source Describes the use of checkinstall in ubuntu. Usually when compiling from source we run:...
View ArticleSmall note: Linux and Cisco VPN client (vpnc)
The scenario I faced is probably typical of many IT guys who work from home: I needed to connect to my work VPN but I prefer to use my more powerful linux machine from home. IT here only really support...
View ArticleNugget post: Lessons learned in SSH password-less login
There are plenty of guides on how to setup SSH login to a remote host without having to provide a password. The one I followed was:...
View ArticleOpsView, bash and GNUplot
Update: The method I go on to describe is over complicated for the objective. Matt in the comments section pointed out a much easier, OpsView method of doing this. Still, the below is a good exersize...
View ArticleCreating a virtual cisco router (VMWare ESX + GNS3 + Linux)
Trying to do more with less is definitely one aim that virtualising helps you achieve. There are quite a bit of guides on how to use GNS3 to build a virtual cisco lab. There are also very good guides...
View ArticleQuick Tip : What software do I have installed on my Ubuntu / Debian server?
During troubleshooting, or even when setting up an unfamiliar server, it’s quite a common question to ask what software / packages is actually installed on the server you’re working on. For example, I...
View ArticleConfiguring basic cisco network traffic monitoring with ntop and NetFlow
If you are the admin of a cisco (and sonicwall now in the newer firmware) network, NetFlow is a good and easy way of gathering insight into what exactly is passing through your cisco. Apart from seeing...
View ArticleUser based access control for Skype
I recently wrote an article for Bluecoat describing how to limit Skype access based on usernames and passwords. The article is available here. This got me wondering if I can achieve the same...
View ArticleSQUID transparent SSL interception
July 2012: Small update on new versions of squid (squid v 3.2) here There seems to be a bit of confusion about configuring SQUID to transparently intercept SSL (read: HTTPS) connections. Some sites say...
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