[svlug] Picking an alternate port for sshd to listen to
dmarti at zgp.org
Thu Oct 28 13:59:36 PDT 2004
begin Norman Shapiro quotation of Thu, Oct 28, 2004 at 10:46:07AM -0700:
> He said that the port should be selected "with care". I don't know what kind of
> care I should take. Is there some acceptable range of port numbers? Are there
> certain port numbers that should be avoided?
Look at your firewall logs and avoid ports that get
a lot of attention from wannabe attackers probing
for services. You don't want to move ssh to port
137 or something.
Look at /etc/services and make sure you don't conflict
with a real service you offer or plan to offer.
Look at the services file that comes with nmap and
don't choose a port that nmap scans by default.
dmarti at zgp.org Keep your mangement off my digital rights.
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