Network troubleshooting, any experts?
duncanbrown at linuxadvocate.net
Thu Apr 29 11:30:43 UTC 2004
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
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