I have *never* had an ssh attempt on my boxes with non-standard port numbers. I (used to) get *hourly* attempts on port 22. If you really want to get paranoid though, have a look at the various port openers. "Pork knocking" is the phrase you need to google for. Regards, MrKiwi ====================== Daryl Egarr, Director Kawhai Consultants Ltd Cell 021 521 353 Daryl.Egarr at kawhai.net ====================== Kamill S wrote: > Hello, > > you can let listen sshd on Port 222 for example. Edit /etc/ssh/sshd_conf > > In line #Port 22 > > Greetz > > > Mohd Syakir wrote: >> Hi, >> >> i have one centos 4.3 box, exposed to the internet. >> since several weeks ago, i found numerous attemps to connect through >> SSH, but failed. >> >> they tried with many username, including root. >> it's comes from different IP. some of them are foreign website. >> >> How do i make my centos become smarter in handling this kind of attacks. >> >> eventhough i've disable all the user accounts, left only the admin >> accounts. making the password so hard, longer and combining alphabet, >> numbers and characters... yet i dont want the attackers keep on >> trying. >> >> any suggestions? >> >> thanks in advance. >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos >> > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >