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Originally Posted by carpman
... tcp_pass = entry....
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This without context is meangless to PF users. If you want people to examine your PF configuration, post it.
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Is there a way (tool) to test if this connection is working?
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If you, yourself, do not have a remote system with a shell account to test from, you can use remote scanners such as "ShieldsUP!" which is operated by Gibson Research (grc.com). This will tell you if the TCP or UDP port you are interested reflects what Gibson Research defines as "open" "closed" or "stealth", depending on positive, negative, or no response from your server.
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plus is it possible to only allow this port for this one remote server?
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Yes, see the syntax of the rdr PF rule. e.g.:
Code:
rdr log on $external_nic proto tcp from $my_friends to any port 5524 -> $internal_server 5524