Network troubleshooting, any experts?

[duncan brown]

Jeff Vian said:
> established while new connections can be blocked.  I use this on both
> ftp (allowing only port 20) and http (allowing only port 80).

just to ensure that no green sticks here (new people) get confused, ftp is
21, not 20.

you can check what port and protocol is for what service in /etc/services

-d

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