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Derek Tam (dtam@langara.bc.ca)
Fri, 16 Mar 2001 10:38:39 -0800
Hi There,
I have a RedHat Linux 6.0 (2.2.16-3) box at home, and I use 'IPCHAINS' to
setup the firewall. Recently, I find that I can't use 'ps -fe' command on
my machine (not really doesn't work, but only display my shell process and
the getty processes). But I still can use 'ps -aux'.
Until yesterday, I found that I couldn't logon to my computer in text mode.
I tried to login using other users including root, it just returned
'incorrect login'. I rebooted the machine, but still didn't help. When I
switched to GUI mode, I could login to my machine. I found that there two
users more in the passwd and shadow files. I deleted the two users (one is
'b' and the other one is 'bb') from these files and rebooted, but still
didn't help ( I still couldn't login in text mode). This morning, I tried
to login (in GUI mode), it just gave me a 'blue' screen, I knew that I can
login, but couldn't startup enlightenment.
Is my computer was hack? Can anybody help me to fix it? Once fixed, how I
can protect my computer. I haven't install ssh (sometimes I telnet from
remote site) on my machine, should I install it? Does RedHat has a ssh RPM?
Many thanks,
Derek
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