On 05 June 2006 16:06, Leandro Melo de Sales wrote: > Hi, > > today when I was checking the server log I got many external > attempts to connect to my sshd service: > > ... > Jun 5 05:09:45 embedded sshd[4740]: Invalid user barbara from x.y.w.z > Jun 5 05:09:46 embedded sshd[4742]: Invalid user barb from x.y.w.z > Jun 5 05:09:48 embedded sshd[4744]: Invalid user barbie from x.y.w.z > Jun 5 05:09:50 embedded sshd[4746]: Invalid user barbra from x.y.w.z > Jun 5 05:09:51 embedded sshd[4748]: Invalid user barman from x.y.w.z > Jun 5 05:09:53 embedded sshd[4750]: Invalid user barney from x.y.w.z > ... > > this seems to be a brute force attack, but one thing that worried me > is why sshd didn't disconnect the remote host after 3 unsuccessful > attemps? If we see in the log, there are many attemps with time > interval between attemps of 2 or 3 seconds meaning that the sshd > didn't disconnect the remote host after 3 attempts. > So, first, Am I thinking correct about the sshd attempts? > Second, how can I setup sshd or the entire system to permit just 2 or > 3 attempts of authentication? I was checking the /etc/login.defs file > and I see the following option: > > # > # Max number of login retries if password is bad > # > LOGIN_RETRIES 3 > > but why this didn't work for the above connection attempts?
Because it wasn't a bad password. It never got to that stage. ;-) Uwe -- Mark Twain: I rather decline two drinks than a German adjective. -- gentoo-user@gentoo.org mailing list
