September 2010 - Systems Administration Problem Solvers

ssh: Illegal -o parameter “PermitLocalCommand no”

Sep

29

2010

Your box has been hacked. Refer to my previous post: HERE You need to reinstall the SSH client: yum reinstall openssh-clients

Unknown HZ value! (##) Assume 100

Sep

23

2010

You’ve been hacked. How to clean a Hacked CentOS / LINUX Machine yum install chkrootkit Run chkrootkit to find INFECTED files You will need to delete, manually, each of these files. The permissions will be modified to stump the average user. You will need to use: chattr This command will free most files: chattr -suSadAc ...

Tar specific file types / extensions

Sep

23

2010

find . -name ‘*.abc’ | pax -wdx ustar | gzip > Files.tgz

spamass-milter + FreeBSD

Sep

22

2010

exit 255 at /usr/local/bin/spamd line 2588. /usr/local/etc/rc.d/sa-spamd: WARNING: failed to start spamd The above error can be resolved by typing: sa-update