Archive for August, 2009

robots.txt – A System Administrator’s Review

As you know that Robots are the programs that traverse the Web sites automatically. Search engines such as Google  use them to index the web content. The mechanism of the robots is simple, when they go to visit any site, they first look for robot.txt file and see which area are not allowed by site owners to visit.

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WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

You might have often seen this error when you try to ssh to another linux machine from your Linux box, the reason for the error is simple. When you login into any Linux server,  the source machine saves the IP address’s information of the remote machine in the list of the trusted hosts. It adds this IP address in /root/.ssh/known_hosts file. If the password for the remote machine has been changed and you try to ssh it, you will get the error message and will not be able to login.

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How To Change Time Zone Of Linux System

Well, system administrators who work on remote Linux servers find it hard to change the time zone for the server. Yeah, you read it right, not time but time zone. I came upon the problem yesterday and figured out simple way to cope the problem. Here are easy steps to change time zone of the Linux based machine.

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