Remote IP Port Forwarding with SSH but with firewall.cmd or IPTables now

renix

12/9/23, 3:11 PM

The context:

I'm working with Zabbix Server and need to monitor remote servers conected with VPN/SSL tunnel using OpenFortiVPN with Any-Any rule set by our external Datacenter Provider.

Local IP of Zabbix Server: 192.168.2.6/24 Remote IP of monitored server: 10.0.0.1 (available from VPN/SSL Tunnel as said)

Zabbix dropped packets from ppp0 interface (created by openfortivpn connection), but I have succesfully stablished a ssh port forward from 10.0.0.1:10050 to 192.168.2.6:10056 and configurating 10.0.0.1 zabbix agent as server itself (server=10.0.0.1), and in the zabbix server side (192.168.2.6), I have created a host with 192.168.2.6 agent IP on local port 10056, and I have created to zabbix server obtaining 10.0.0.1:10050 agent data in 192.168.2.6:10056

The question and helping request is:

The ssh command line I have used is (with certificate autentication):

ssh -L 192.168.2.6:10056:10.0.0.1:10050 [email protected] -o ServerAliveInterval=60

How can I translate this functional ssh port forwarding (and cheating) rule to an IPtables or firewall-cmd (preferred), considering I have the fully functional vpn/ssl tunnel stablished.

Your help will be greatly appreciated since I have no experience in doing something like this with firewall-cmd or iptables and all my experiments have failed.

Bests,

René

0 + 1

iptables

port-forwarding

ssh-tunnel

firewall-cmd

Tero Kilkanen

12/9/23, 9:45 PM

You should set up proper routing table entries in both ends of the tunnel instead of trying NAT with firewall rules.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Remote IP Port Forwarding with SSH but with firewall.cmd or IPTables now

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