I'm using RedHat 7.3, and I would to allow only www input/output traffic (no ftp, telnet, ssh, etc.). There are no reason to do that, but I wonna learn more about firewalls. So I got the answer, I must make
# Default Policy I/O DROP
ipchains -P INPUT DENY ipchains -P OUTPUT DENY # Rules ipchains -A INPUT -i eth0 -p tcp -d my_ip --dport 80 -j ACCEPT ipchains -A OUTPUT -i eth0 -p tcp -d my_ip --dport 80 -j ACCEPT
So, but it does not works. Have enyone an idea, why? I'm using Apache as Web Server. Thanks, Vasyl
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