Find the answer to your Linux question:
Results 1 to 2 of 2
Hello! i have recently setup a debian server to manage my network, it uses ipv4 forwarding for the routing, iptables for the firewall and hostapd for the wap. at the ...
Enjoy an ad free experience by logging in. Not a member yet? Register.
  1. #1
    Just Joined!
    Join Date
    Aug 2011
    Posts
    2

    how can i forward ssh to a internal ip using iptables?


    Hello! i have recently setup a debian server to manage my network, it uses ipv4 forwarding for the routing, iptables for the firewall and hostapd for the wap. at the moment i am trying to forward my ssh port (22000) to a internal ip: 192.168.1.111 but i have not had success, my iptables save file looks like so:

    # Generated by iptables-save v1.4.8 on Thu Jul 28 13:05:43 2011
    *nat
    :PREROUTING ACCEPT [741:63044]
    :POSTROUTING ACCEPT [0:0]
    :OUTPUT ACCEPT [192:13768]
    -A POSTROUTING -o eth0 -j MASQUERADE
    COMMIT
    # Completed on Thu Jul 28 13:05:43 2011
    # Generated by iptables-save v1.4.8 on Thu Jul 28 13:05:43 2011
    *filter
    :INPUT DROP [0:0]
    :FORWARD ACCEPT [0:0]
    :OUTPUT ACCEPT [0:0]
    -A INPUT -s 192.168.1.0/24 -i br0 -j ACCEPT
    -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
    -A FORWARD -i eth0 -o Br0 -m state --state RELATED,ESTABLISHED -j ACCEPT
    -A FORWARD -i br0 -o eth0 -j ACCEPT
    -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
    -A OUTPUT -j ACCEPT
    COMMIT
    # Completed on Thu Jul 28 13:05:43 2011
    **********************************************
    what commands do you think i should issue to allow the 22000 forwarding? thanks for your help! very much appreciated =]

  2. #2
    Trusted Penguin
    Join Date
    May 2011
    Posts
    4,307
    Something like:
    Code:
    -A PREROUTING -p tcp -m tcp --dport 22000 -j DNAT --to-destination 192.168.1.111:22

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •