ssh vpn server config generator

ssh_vpn_server.sh

#!/bin/bash - 
#===============================================================================
#
#          FILE: server.sh
# 
#         USAGE: ./server.sh 
# 
#   DESCRIPTION: 
# 
#       OPTIONS: ---
#  REQUIREMENTS: ---
#          BUGS: ---
#         NOTES: ---
#        AUTHOR: lwq (28120), [email protected]
#  ORGANIZATION: 
#       CREATED: 04/22/2015 05:18:45 PM HKT
#      REVISION:  ---
#===============================================================================

# ssh server

# sshd_config added
# PermitRootLogin yes
# PermitTunnel yes
# AllowTcpForwarding yes
# service ssh restart

tun=tun${1:-1}
pnum=${2:-8}

cat <<-EOF
# sshd_config added
PermitRootLogin yes
PermitTunnel yes
AllowTcpForwarding yes
# service ssh restart

# run command on sshvpn server
sudo ip link set $tun up
sudo ip addr add 10.1.${pnum}.100/32 peer 10.1.${pnum}.200 dev $tun
arp -sD 10.1.${pnum}.200 eth0 pub
iptables -t nat -C POSTROUTING -o eth0 -j MASQUERADE || iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
iptables -t nat -C POSTROUTING -o $tun -j MASQUERADE || iptables -t nat -A POSTROUTING -o $tun -j MASQUERADE
EOF