Hola lista:
En mi iptables tengo las siguientes líneas:
-A INPUT -p tcp -m tcp -m state -i eth0 --dport 25 --state NEW -j
ACCEPT
-A INPUT -p tcp -m tcp -m state -i eth0 --dport 110 --state NEW -j
ACCEPT
-A INPUT -p tcp -m tcp -m state -i eth0 --dport 21 --state NEW -j ACCEPT
Estos puertos no me los abre. Por que será??????? Si le estoy
especificando el puerto....
Archivo de conf.
# Generated by iptables-save v1.3.6 on Fri Nov 2 16:01:58 2007
*nat
:OUTPUT ACCEPT [0:0]
:PREROUTING ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
# ENMASCARO
-A POSTROUTING -s 172.16.45.172/32 -d 0.0.0.0/0.0.0.0 -o eth0 -j
MASQUERADE
COMMIT
# Completed on Fri Nov 2 16:01:58 2007
# Generated by iptables-save v1.3.6 on Fri Nov 2 16:01:58 2007
*mangle
:PREROUTING ACCEPT [1:78]
:INPUT ACCEPT [1:78]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
COMMIT
# Completed on Fri Nov 2 16:01:58 2007
# Generated by iptables-save v1.3.6 on Fri Nov 2 16:01:58 2007
*filter
:FORWARD ACCEPT [0:0]
:INPUT DROP [0:0]
:OUTPUT ACCEPT [0:0]
# Accept traffic from internal interfaces
-A INPUT ! -i eth0 -j ACCEPT
# Accept traffic with the ACK flag set
-A INPUT -p tcp -m tcp --tcp-flags ACK ACK -j ACCEPT
# Allow incoming data that is part of a connection we established
-A INPUT -m state --state ESTABLISHED -j ACCEPT
# Allow data that is related to existing connections
-A INPUT -m state --state RELATED -j ACCEPT
# Accept responses to DNS queries
-A INPUT -p udp -m udp --dport 1024:65535 --sport 53 -j ACCEPT
# Accept responses to our pings
-A INPUT -p icmp -m icmp --icmp-type echo-reply -j ACCEPT
# Accept notifications of unreachable hosts
-A INPUT -p icmp -m icmp --icmp-type destination-unreachable -j ACCEPT
# Accept notifications to reduce sending speed
-A INPUT -p icmp -m icmp --icmp-type source-quench -j ACCEPT
# Accept notifications of lost packets
-A INPUT -p icmp -m icmp --icmp-type time-exceeded -j ACCEPT
# Accept notifications of protocol problems
-A INPUT -p icmp -m icmp --icmp-type parameter-problem -j ACCEPT
# Allow connections to our SSH server
-A INPUT -p tcp -m tcp --dport ssh -j ACCEPT
# Allow connections to our IDENT server
-A INPUT -p tcp -m tcp --dport auth -j ACCEPT
# Permito lo que yo quiera y a quien yo quiera
-A INPUT -p tcp -m tcp --dport 10000 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 3128 -j ACCEPT
-A INPUT -p tcp -m tcp -m state -i eth0 --dport ftp --state NEW -j
ACCEPT
-A INPUT -p tcp -m tcp --dport 445 -j ACCEPT
-A INPUT -p tcp -m tcp -m state -i eth0 --dport 25 --state NEW -j ACCEPT
-A INPUT -p tcp -m tcp -m state -i eth0 --dport 110 --state NEW -j
ACCEPT
# -A INPUT -p tcp -s 172.16.45.1 -j ACCEPT Enruto salida -A FORWARD -p
tcp -j DROP
-A FORWARD -p tcp -m tcp -s 172.16.45.172/22 -d 0.0.0.0/0.0.0.0 -i eth0
-o eth0 -j ACCEPT
-A FORWARD -p tcp -m tcp -s 172.16.45.1/22 -d 0.0.0.0/0.0.0.0 -i eth0 -o
eth0 -j ACCEPT
COMMIT
# Completed on Fri Nov 2 16:01:58 2007
