help, please

my server is web server with centos 5 & parallel 9, don't why all web sites in this server have been added a home pages which is not mind. even the mysql admin also redirected to other site, what i can do!!!!!
I am a newbie of linux!

please help

Congrats on finding out that much.
I would look for the local Linux User Group and seek help. Fixing the box isn't enough - you would have to fix the vulnerabilities.

You might want to report your thread and ask it to be moved to the Linux Security forum.

Read through previous threads in the Linux Security forum so you know what information you need to gather to proceed.

For example, the link to the Intruder Detection Checklist on this sticky post may be a good place to start:
http://www.linuxquestions.org/questi...erences-45261/

The MySQL manual has a security section. There are a couple of things you MUST do after installing.

Mostly you will need to gather and study the logs for the kernel, and the web server, and check your configuration settings and permissions. You need to learn how your systems were compromised so you can correct the situation before going back on line.

Sorry but I don't know what parallel 9 is. You might want to explain what it is if it may have vulnerabilities.

From reading the original post, it also looks like it could be a case of domain squatting, rather than a compromised host.

Perform an nslookup of your domain and see if it returns your public IP address. Be sure to use a DNS server that is not yours, like Google's public DNS.
To do this, launch a terminal prompt and code the following:

If you get something back other than your public IP address, you need to contact your domain registrar.

thanks you everybody!

i mean parallel control panel 9

Thank you jasonchongkn. I thought the links in his own site had been modified.

thanks jschiwal, could you tell how to prevent this issue happen again?