Hi Guys,
Im new to this list and a newbie in the world of linux. Our company had just started to use linux in our server using Redhat 6.2. At first the system was working fine. but one morning I noticed that the modem is not connected. I shutdown the Redhat to make the modem connect. The modem connected but when I try to log in the server as root it wont accept the user, keeps on returning to prompt asking again.

I also received the error "unable to load interpreter /lib/ld-linux.so.2" always received this error and clears the screen. Our insternet and sendmail is still working fine only problem is loging to the server.

Pls help I dont know what to do. Thank you very much in advance

Sorry if this is a production server, but take it off the network and reboot into runlevel 1.
This will give you root access to investigate without loading any daemons, and without entering a password. If this doesn't work, boot from the install cd, which should have a "rescue" mode so you could mount the hdd to check.

The "unable to load interpreter /lib/ld-linux.so.2" is a critical error because a lot of dynamically linked binaries depend on it.
Please verify your installed rpm's against the install cd, run chkrootkit (www.chkrootkit.org) from a trusted, clean box, mounting the hdd of this one and check your logs. Also read the thread below "PortSentry" if you can. If youve found something interesting and you would like to share it with us that would be great.