[Script] Script Zimbra - Firewall

[Luis Robles]

#!/bin/bash
#
# iptables example robi-srv
#
# Flush all current rules from iptables
#
iptables -F
#
# Allow connections from LAN
#
‪#‎iptables‬ -A INPUT -s 192.168.0.0/24 -j ACCEPT
iptables -A INPUT -m iprange --src-range 192.168.0.2-192.168.0.254 -j ACCEPT
#
# Allow SSH connections on tcp port 22
# This is essential when working on remote servers via SSH to prevent locking
# yourself out of the system
#
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
#
# Allow HTTP connections on tcp port 80
#
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
#
# Allow HTTPS connections on tcp port 8080
#
iptables -A INPUT -p tcp --dport 8080 -j ACCEPT
#
# Allow ZIMBRA connections
#
iptables -A INPUT -p tcp --dport 25 -j ACCEPT
iptables -A INPUT -p tcp --dport 110 -j ACCEPT
iptables -A INPUT -p tcp --dport 143 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j ACCEPT
iptables -A INPUT -p tcp --dport 993 -j ACCEPT
iptables -A INPUT -p tcp --dport 995 -j ACCEPT
iptables -A INPUT -p tcp --dport 7071 -j ACCEPT
#
# Set default policies for INPUT, FORWARD and OUTPUT chains
#
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT ACCEPT
#
# Set access for localhost
#
iptables -A INPUT -i lo -j ACCEPT
#
# Accept packets belonging to established and related connections
#
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
#
# Save settings
#
/sbin/service iptables save
#
# List rules
#
iptables -L -v