My new blog

A new blog/website for "Helping Hands Kuwait" for Morba, Dahiwali and Kond is launched at http://helpinghandskuwait.wordpress.com on 9th Feb 2013.

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Show tech command in H3C

Normally we use " show tech " (show tech-support) command to gather ALL the information from a switch or a router. This applies to all Cisco networking devices as well as HP Procurve switches (I don't know about other vendors). The show tech command in H3C is display diagnostic-information . It does exactly the same thing as show tech, except that it will ask you if you want to save the output in a file [(inside flash), so that you can copy it using tftp], or display it on screen (as usual).
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What is the difference between BackTrack and Kali Linux?

So recently, a new flavor of Linux had been introduced as Kali Linux and is being advertised on Backtrack website. What is this fuss all about? What is Kali Linux and why are Backtrack guys advertising it. To know the answer, read below. Kali Linux is the Next-Generation Backtrack Linux. Or as some people might say, Backtrack Linux 6.0 = Kali Linux 1.0 So why did they changed the name of the distribution and created the confusion in the first place? The main reason was that the new release of Backtrack (i.e., Kali Linux now onwards) is a very different and advance version . It has many differences as compared to the original Backtrack distribution, and hence, using the same name with new version number would not do justice to their work. Hence they came up with a new name. Now the question arises, what are the main differences (upgrades) in Kali Linux as compared to the original Backtrack Linux? To know the answer, see what the documentation at Kali Linux says here ...
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HP ProCurve VRRP with different Physical and Virtual IP address

In case you are having HP ProCurve Core Switches, and need to configure redundancy on it, you need to configure VRRP to achieve it. I will assume you have the knowledge of HSRP for this post. Somehow, HP ProCurve switches does not support a separate Virtual IP address than the Physical IP address for VRRP. Although, many other vendors do support it (Virtual IP being different than the Physical IP addresses (in the same network)). HP ProCurve requires that the Virtual IP address to be the same as the Master's Physical IP address. I am not sure why they want us to enforce the Virtual IP address being the same as Master's Physical IP address, since this creates issues, especially in Monitoring software. For e.g., you want to monitor both Cores by their IP address. Since they are running VRRP, and if master fails, the Master's IP address will still show as "UP", since the virtual IP (which is same as Master's Physical IP address) has shifted to the Backup/S...
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