Hi all, i need do a boot script with following command :modprobe ip_greiptunnel add gre1 mode gre remote XXX.XXX.XXX.XXX local XXX.XXX.XXX.XXX dev eth0ifconfig gre1 XX... [by blade832]
I want to forward port 2222 on an Ubuntu 12.04 server to remote host 1.2.3.4 port 22, using iptables.
After reading many web pages on port-forwarding, I issue
$ sysctl net.ipv4.conf.eth0.forwarding
net.ipv4.conf.eth0.forwarding = 1
$ sudo iptables -t nat -A PREROUTING -p tcp -i eth0 --dport 2222 -j DNAT --to-destination 1.2.3.4:22
Which forwards traffic as I desired. But ssh does not work.
I have a linux box with two NIC cards: eth0 and eth1.
In one card i have 3 public IP:
eth0 = 10.10.10.1
eth0:1= 10.10.10.2
eth0:2= 10.10.10.3
In the other card I have one local IP
eth1 = 192.9.200.1
I want to redirect all the wan traffic for 10.10.10.2 to the LAN 192.9.200.2 and the same for 10.10.10.3 to 192.9.200.3
I have tried with this rule but doesn't work
iptables -t nat -A PRE
I have a kippo honeypot setup on our local network, and our DMZ uses:
sysctl net.ipv4.ip_forward=1
ldconfig
iptables -t nat -A PREROUTING -p tcp -s $ATTACKER_IP --dport 22 -j DNAT --to-destination 192.168.1.200:2222
iptables -t nat -A POSTROUTING -j MASQUERADE
There is also a port forward on the router so port 2222 can be hit from outside the network.
Good morning,
I'm a newbie of iptables and as far as I've seen on tutorials on the Internet it seems that both prerouting and postrouting NAT chains are undergone both by a packet that goes from an internal LAN to the Internet and of a one that goes in the opposite direction (from the Internet to the LAN).
AS NAT prerouting is DNAT, i.e.
Hello. I'm brand new to Linux, but a long time Windows administrator, so I understand the concepts, not the syntax.
I've stumbled through setting up Ubuntu Server as a NAT server. It's working great now.
I have a basic setup that requires the following
Client -> iptables DNAT -> Server using udp messaging:
The configuration I have on my client is: (my server is 172.33.1.30)
ifconfig eth0:1 172.32.1.10 netmask 255.255.0.0
ifconfig eth1 172.33.1.10 netmask 255.255.0.0
iptables -t nat -A PREROUTING -p udp -i eth0 -d 172.32.1.10 --dport 1001 -j DNAT --to 172.33.1.30
iptables -A FORWARD -p udp -i et
Good day.
I have a following issue - i have plenty of the computers in my local network(probably, about 40, and this amount could increase), and i want to give remote access to all of them from the internet. All those machines are connected to internal network through one gateway/firewall/whateverelse with debian 6.0.7 on board.
My goal is to redirect connections from the local host to a remote server, and be able to change the remote address on the fly, without any client config changes.
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