ipfw and dynamic dns

S

scavern

Hello,

I have a server that needs to access my FreeBSD firewall that is currently running IPFW.

The problem I have is that the source IP is dynamic eg. mydynip.dyndns.org and I do not want to open ports for all.

Any suggestions on how to get around this ?
 
You'd have to do something like [thread=7204]port knocking[/thread] I guess. Opening port 22 isn't all that dangerous, but I do highly recommend disabling password/PAM authentication. Use SSH keys only.
 
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