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 DNS Zones

There are many recommendations for DNS zone settings, Here are mine as follows:   ...

 How can I see a list of who has logged in to the server?

Use the last command.Example: last -30 will displaly the last 30 people.

 How can I see the environment variables a process is running with?

Run the following command: ps auxwwe |grep processname

 How can I see what is on the console screen of my Linux server?

Run the following command: cat /dev/vcs1

 How do I find all SETUID root files on my server?

This will show all SETUID and SETGID files on the server (assuming a good integrity of the 'find'...

 How do I keep my crontab from sending an email every time it runs?

Add the following to the crontab after 0 * * * * /home/uesr/backup.pl >/dev/null 2>&1:...

 How to get the cPanel MySQL root password details

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 I use MS Windows, how can I log in to my server?

You will need to download an SSH client. We recommend one called PuTTY? , which is free and may...

 My server is under a SYN attack, what can I do?

If you believe you are under a SYN attack, run the following command:    * netstat...

 Putting commands together

Often you will find you need to use different commands on the same line. Here are some examples....

 Shell Commands

The following is a breakdown of the most commonly used commands and the most commonly used...

 Where do I find things?

If you are trying to find a program, log into the shell. Typing "whereis program", where...

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