jozjan's blog

If you are wondering what messages should follow the SIP INVITE message, you can take a look at the official SIP RFC, or you can go to www.t...

While writing a new email at gmail, I was disturbed with the following error message: Fortunately, after following the instruction to r...

I have just got my newsletter email from the Cisco Networking Academy . It talks about the upcoming version of Packet Tracer 5.2, which ...

… after a quite long time (again), here comes a simple HOWTO describing the process of running a Linksys WRT54GL as a wifi client with 802.1...

I haven’t been publishing here for a quite long time. I have got busy with some work and school stuff. But hopefully I will get onto this bl...

If you have installed some Debian/Ubuntu package, that you don’t wanna update trough apt-get upgrades, you can put a flag HOLD to that p...

When working in Linux, I read lot of man pages for different commands while looking for some helpful information on how to use the command...

Google has yesterday published a public download of its own web browser – Google Chrome. Google Chrome is a brand new web browser build f...

How To Make Fire Balls - Amazing videos are here This is an amazing howto video of an amazing thing – how to hold and play with a f...

I have found today on the Cisco Academy Connection webpage a new icon in the left navigation toolbar. It was a link to a new version of Pack...

The old Cisco battleships, the pre-ISR routers, are going to be discontinued in the next upcoming IOS versions, starting from 12.4(20)T. I...

You must have seen those small “form factor” books named like “Handy command line guide”. Now you can make your own pocket commands guide fo...

When I configure a bunch of Cisco gears in lab environment, just for fun or testing some new feature, I like the ability to get CLI access w...

The battleship of VMWARE, the ESXi server has became a free product! You can download it directly from vmware.com and you are free to us...

When you use DNS to resolve hostnames to IP addresses or services end point addresses, and you make a change in your domain zone configurati...

From some sources I’ve got an information that the new Packet Tracer 5.0 is planed to be officially released on Academy Connection on 28th...