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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 ...
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- 08-04-2011 #1Just 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 =]
- 08-16-2011 #2Trusted Penguin
- Join Date
- May 2011
- Posts
- 3,657
Something like:
Code:-A PREROUTING -p tcp -m tcp --dport 22000 -j DNAT --to-destination 192.168.1.111:22


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