Debian 10 - Internet access through SSH
=======================================

Public domain
********************************************************************************
### Scenario

**Server:** A machine with SSH server that you can connect from Client, but does not have Internet access.  
**Client:** A machine with SSH access to server and has Internet access.  
**Objective:** Provide Internet access to Server through Clients SSH tunnel.  

********************************************************************************
### Server: add to /etc/ssh/sshd_config and restart ssh service

    PermitTunnel yes

********************************************************************************
### Client: connect to server

    ssh root@192.168.1.10 -p22022 -w0

********************************************************************************
### Client: router settings

    ifconfig  tun0 1.1.1.1 netmask 255.255.255.0
    echo 1 > /proc/sys/net/ipv4/ip_forward
    iptables -t nat -A POSTROUTING -o ppp+ -j MASQUERADE

********************************************************************************
### Server: Gateway settings

    ifconfig  tun0 1.1.1.2 netmask 255.255.255.0
    ping -c 4 1.1.1.1
    route add -net <client network> gw <old gateway>
    route del default
    route add default gw 1.1.1.1

********************************************************************************
_BY: Pejman Moghadam_  
_TAG: ssh, sshdconfig_  
_DATE: 2021-05-26 01:20:35_