##############################################
#                                            #
#       Allow SSH in IPTables                #
#       Author: Taylor Bockman               #
#               <tbockman@taylorbockman.com> #
#                                            #
##############################################

echo "SSH Port:"
read sshport

echo "Interface: "
read interface

# Allow incoming SSH
sudo iptables -A INPUT -i $interface -p tcp --dport $sshport -m state --state NEW,ESTABLISHED -j ACCEPT -m comment --comment "SSH Incoming"
sudo iptables -A OUTPUT -o $interface -p tcp --sport $sshport -m state --state ESTABLISHED -j ACCEPT -m comment --comment "SSH Incoming"

# Allow outgoing SSH
sudo iptables -A OUTPUT -o $interface -p tcp --dport $sshport -m state --state NEW,ESTABLISHED -j ACCEPT -m comment --comment "SSH Outgoing"
sudo iptables -A INPUT -i $interface -p tcp --sport $sshport -m state --state ESTABLISHED -j ACCEPT -m comment --comment "SSH Outgoing"

echo "Completed opening up SSH on interface $interface, port $sshport."