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Old 09-12-2004, 08:12 AM   #1
frank2
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iptables, block port 80?


Hi.

I want to block port 80 (outgoing) from all pc-s except frmo only one pc (my proxy-server). is this possible? and how is it done? i've read the documentation i could find.
 
Old 09-12-2004, 08:20 AM   #2
ppuru
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you can

iptables -A INPUT -p tcp -i <internal NIC> -s ! <your IP> --dport 80 -j REJECT
iptables -A INPUT -p tcp -i <internal NIC> -s <your IP> --dport 80 -j ACCEPT

OR

You can set rules on your proxy server to accept connections only from your pc

Last edited by ppuru; 09-12-2004 at 08:22 AM.
 
Old 09-12-2004, 08:30 AM   #3
frank2
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i dont't think i expressed my self good enough.

well.

i want to block it on my router running iptables.
proxy are on another server.

i do only want to accept outgoing frmo my proxy.
 
Old 09-12-2004, 08:48 AM   #4
ppuru
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iptables -A FORWARD -p tcp -i <internal NIC> -s ! <your IP> --dport 80 -j REJECT
 
Old 09-12-2004, 09:14 AM   #5
frank2
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ah, this works great forcing everybody use proxy, thanks guys
 
  


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