Re: How much difference does it make to run ssh on a different port number?
On 10/3/05, michael <email@example.com> wrote:
On Mon, 2005-10-03 at 16:07 +0200, Tarapia Tapioco wrote:
> Occasionally people recommend running sshd on a different port number
> (not 22) to reduce the number of cracking attempts (dictionary
> Does this really make a big difference?
> Anyone have any statistics on it?
when i tried this the number of attacks went from several daily to zero.
unfort several remote computers i use seem to expect me to ssh out using
port 22 :(
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I don't see many attempts to crack into my ssh server, but a lot on my
web server. Bunch of idiots who know how to do port scanning, and have
read something about IIS hacks, try to do it on every port 80 that is
open. But since I changed my port to some arbitrary number, I didn't
see any hits that I didn't anticipate.
Of course changing port number is not the ultimate defense, as any one
who knows how to scan from 1 to 65K will eventually be able to find
out your open ports.