SSH - PhoenixWiki

SSH

# SSH PortForwarding

# Enable IP Forwarding

sudo sysctl net.ipv4.ip_forward=1

# Forward traffic on port 2222 to IP 10.0.0.2 on port 22

sudo iptables -t nat -A PREROUTING -p tcp --dport 2222 -j DNAT --to-destination 10.0.0.2:22

# Masquerade

sudo iptables -t nat -A POSTROUTING -j MASQUERADE

# OpenSSH ProxyCommand

Host hosta
    User userfoo
    Hostname 123.123.123.123

Host hostb
    User userbar
    Hostname 192.168.1.1
    Port 2222
    ProxyCommand ssh -q -W %h:%p hosta

Reference:

[1] https://heipei.github.io/2015/02/26/SSH-Agent-Forwarding-considered-harmful/

Last Update 2018/02/23 03:14:42 +0900