I said many times - just use non standard port. Number of hackerts who discover this port wil decrease approx 10,000 times, to almost 0 (number). (Of course, except if you are a bank). Other approach exists as well - SecureID on firewall. Login to firewall, authenticate, and have dynamic access list which opens ssh for you (and still keep ssh on port != 22). ----- Original Message ----- From: "Patrick W. Gilmore" <patrick@ianai.net> To: <nanog@nanog.org> Cc: "Patrick W. Gilmore" <patrick@ianai.net> Sent: Tuesday, November 15, 2005 11:02 AM Subject: Re: a record?
On Nov 15, 2005, at 12:52 PM, Church, Chuck wrote:
Isn't it just good security practice to limit telnet/SSH access to only a few choice hosts/subnets? I know I'd never allow the 0/0 net access to a signon screen, even if it is SSH. If you're on vacation and need to access something, call your NOC, and have them temporarily allow your dynamic address for SSH. When a hacker finds an open SSH host, they think two things - This host is important to someone, and that they need more doughnuts...
That is an excellent idea. As soon as I hire a NOC for my personal boxes, I'll get right on that. But, since I Am Not An Isp, I doubt that is going to happen soon.
Remember, not every box on the Internet is supported by a whole network of resources (physical and human).
-- TTFN, patrick