[CentOS] Strange SSH login try.

Peter Kjellström cap at nsc.liu.se
Mon Mar 13 12:39:18 UTC 2006


On Monday 13 March 2006 13:24, Steve Huff wrote:
> On Mar 13, 2006, at 6:43 AM, Dominik Składanowski wrote:
> > Hello list.
> >
> > Today I saw something strange in logs one of my servers. Part of the
> > /var/log/security:
> > ...
> > Mar 12 15:01:04 server sshd[28515]: Invalid user abcdefgh
> > from ::ffff:x.x.x.x
> > Mar 12 15:01:04 server sshd[28513]: Invalid user abcdefg
> > from ::ffff:x.x.x.x
> >
> > "abcdefgh" is my username to the different machine in the other
> > domain, x.x.x.x it's my workstation. Yesterday, I loged into machine
> > where my login is "abcdefgh" from x.x.x.x. But not to the "server".
> >
> > Anybody has an idea?
>
> looks like a dictionary attack to me; i get these all the time,
> sometimes with sufficient intensity that they crash my gateway router
> (boo!).  these have been discussed recently on-list:

at this point maybe you should have read the original post... he said that 
x.x.x.x is _his_ workstation no some random machine in asia.

/Peter

-- 
------------------------------------------------------------
  Peter Kjellström               |
  National Supercomputer Centre  |
  Sweden                         | http://www.nsc.liu.se
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