Networking :: Configure Port Forwarding Using Webmin Web Interface?
Feb 7, 2010How to configure Port Forwarding using Webmin Web Interface? Example: 118.103.211.22:80 forward to 192.168.100.1:80
View 3 Replies
ADVERTISEMENT
Fedora Networking :: Interface Refuses Port Forwarding Or NAT
Oct 29, 2010I have a set up with a computer that has two network cards and is connected to two networks. Both networks connect to the internet via separate routers that have DHCP enabled. I can set one of the routers up to do port forwarding to the computer without any complications but if I want to do the same on the other router the port forwarding from it doesn't work and I can't reach the system.
I know for a fact that the services are accessible from both networks and both routers can forward ports to other computers in their network. The networks are 10.10.0.1/24 and 172.22.0.1/24. I've tried turning off iptables but that didn't change anything.
Is there any kind of setting that could prevent the interface on the computer to reject traffic using NAT or something?
If I disable the interface on the working network (ifdown eth1) then suddenly eth0 on the other networks starts accepting requests sent to it via the router that does the port forwarding. I do however want to emphasize that services work just fine as long as the requests originate from either of the networks they are on.
Networking :: How To Configure Port Forwarding
Mar 23, 2011I have my mail application running on xxxx port in IPv6 and IPv4 enviornment on Linux machine (RHEL 5).I want to forward IPv4 request comming from windows client
View 2 Replies View RelatedCentOS 5 Networking :: Use Webmin To Set Up Port Forwarding/NAT On A Dual-NIC Centos 5.3 Box?
Aug 31, 2009Can anyone here point me to a walk-through or discussion of how to use Webmin to set up port forwarding/NAT on a dual-NIC Centos 5.3 box? The layout will be simple:
Internet --- NIC1 [CentOS Box] NIC2 --- Switch to other PCs
We have a BUNCH of exposed services that are on special ports -- for example, to connect to one machine, you go in with [IP_Address]:12000, and to connect to another, [IP_Address]:12002, etc., etc. We're currently using OpenSuse 10.3 on this box, and YaST makes this criminally easy (you give it the incoming port number and the destination IP/port numbers and it just works). But OpenSuse 10.3 is nearing EOL, we're buying a new machine, and I'd like to use CentOS on the new one.
I've read the sparse Webmin documentation in their Wiki, and it leads one to believe that you simply insert a "NAT" rule. But there's obviously something they're leaving out. I *am* opening the ports in the firewall. But when I log in to [IP_Address]:port, it just times out. The port forwarding never occurs. The test in this case is SSH, and I know that SSHD is working properly because I can log into that machine just fine from another PC on the same internal subnet.
Networking :: Shorewall: Port Forwarding Port Is Closed Even After Forwarding?
Dec 12, 2009I have just set up shorewall on my router running Arch Linux. The external network is on eth0 and the internal network on eth1.I have set it up for masquerading and that works fine and I can open ports to the firewall. But I'm having trouble with port forwarding to my internal machines.The problem I have is that when port 22350 is forwarded to 192.168.1.3 on my local network, checking the port with nmap from a remote computer gives me:
Code:
PORT STATE SERVICE
22350/tcp closed unknown
[code]....
Fedora Networking :: Port Redirect, I.e. Whatever Comes Through Whatever Interface On Port AAAA Will Get Redirected To Port BBBB?
Feb 18, 2010I want to do a simple port redirect, i.e. whatever comes trough whatever interface on port AAAA will get redirected to port BBBBI thought that iptables -t nat -I PREROUTING --source 0/0 --destination 0/0 -p tcp --dport AAAA -j REDIRECT --to-ports BBBBhowever it doesn't work, e.g. nc -v -w2 -z localhost AAAA gives:
nc: connect to localhost port AAAA (tcp) failed: Connection refused
while
nc -v -w2 -z localhost BBBB
[code]....
Ubuntu Networking :: Error - Remote Port Forwarding Failed For Listen Port 5500
Aug 7, 2010When I use the following command:
ssh user@ssh_server -L 5500:localhost:5500 -p 22
everything works fine. I can log in, and local port forwarding is done. Otherwise when I use the command:
ssh user@ssh_server -R 5500:localhost:5500 -p 22
I get an error "remote port forwarding failed for listen port 5500". However when I try remote port forwarding in WinXP by use of putty there is no problem...
Ubuntu Networking :: Port Forwarding Through A Specific Port?
Jul 14, 2011I want to set my ip as static and port forward it through a specific port can anyone help me with this im using ubuntu 10 with 64 bit OS
View 1 Replies View RelatedNetworking :: Iptables - Port Forwarding To Blocked Port?
Mar 25, 2010I have a mail server on which I would like to block port 25 on my eth0 for everyone except our external spam filter. the problem is that I want our users to be able to connect via port 10025 which is forwarded to port 25, which then is blocked...
View 2 Replies View RelatedNetworking :: Setup Port Forwarding Of Port 1000 To Ip 192.168.1.200?
Oct 24, 2010I had to add them to my firewall script when I installed openvpn on my dd-wrt router:
iptables -I FORWARD -i br0 -o tun0 -j ACCEPT
iptables -I FORWARD -i tun0 -o br0 -j ACCEPT
iptables -I INPUT -i tun0 -j REJECT
iptables -t nat -A POSTROUTING -o tun0 -j MASQUERADE
what should I add/change to set up port forwarding of port 1000 to ip 192.168.1.200. also how to get the answer sent by 192.168.1.200 follow the same route used by the data received through port forwarding.
Networking :: Configure Email Forwarder In Webmin?
Feb 9, 2010Can I configure email forwarder in Webmin?
View 1 Replies View RelatedUbuntu Networking :: How To Ssh 9.10 Without Port Forwarding?
Nov 21, 2010I have a ubuntu 9.10 on my desktop in my office and I have another ubuntu on my home desktop. Both machines are behind a router. I guess many people have already asked the same question: how to remote control the office desktop from my home desktop?Many posts discussed about solving this by setting up ssh and port forwarding. But my situation is that I cannot control the router in my office so I cannot set up any port forwarding for my office desktop. So I guess my question becomes how to remote control my office desktop without setting up any port forwarding on the office router.
View 3 Replies View RelatedUbuntu Networking :: SSH - VNC - No-IP And Port Forwarding
Mar 26, 2011I currently use a commercial VPN when working overseas for secure internet access.
I now also need to VNC to a home ubuntu desktop (which runs software 24/7 that I need to periodically check).
When overseas, I use a Ubuntu laptop and an Android tablet.
For the VNC I intend to use an SSH tunnel. So my question is: should I ALSO set up openVPN on the home computer (so I can stop paying for a commercial provider which routes all my traffic twice across the Atlantic...) or is it easier/better to use the SSH tunnel for the secure webbrowsing too? Something like a SOCKS proxy?
Networking :: IP Tables Port Forwarding?
Jan 8, 2010We have one linux machine in the office which happens to be an important firewall. I just know the basics and need to make one changeEssentially it is forward mysql traffic to another internal machine.This is the original rule (forward to 192.20.0.17) which is working
Code:
$IPTABLES -A tcp_packets -p TCP -s 0/0 --dport 3306 -j allowed
$IPTABLES -t nat -A PREROUTING -p TCP -i $INET_IFACE -d $STATIC_IP --dport 3306 -j DNAT -
[code]....
Networking :: Iptables Not Port Forwarding?
Aug 14, 2010I have a CentOS box which is Internet Facing. It has 3 LAN's connected to it which are for virtual machines.
I want to port forward port 445 to a machine on one of the LAN interfaces. I have tried various ways to get it done, but still cannot access that port from the interface. I definately know device hosting port 445 is live, as I can ping it from the CentOS box and use lynx to access it! (It's a web server)
iptables -t nat -A PREROUTING -i eth0 -p tcp -m tcp --dport 445 -j DNAT --to-destination 192.168.0.2:445
Networking :: Iptables Port Forwarding?
Jun 7, 2010I've been Googling about port forwarding iptables and even though there's result and I've applied it in my script, I can't make iptables forwading request to another machine so I decided to ask help.
eth0 is my Internet Interface (1.2.3.4 is the public ip)
eth1 is my Lan Interface
eth2 is my DMZ Interface
[code]....
Networking :: Port Forwarding 80 To LAN (Web Server)
Feb 3, 2010I have two PC's, one with slackware and one with arch, and I am trying to access the web server from the archlinux machine but i haven't manage to do that. The archlinux machine is connect to the internet via the slackware machine via a crossover cable:
internet > eth0 (pc1) and ppp0 (the PPPoE connection, pc1) > eth1 (pc1) > eth0 (pc2)
PC1:
ifconfig eth1 192.168.0.1 netmask 255.255.255.0
echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
iptables -A FORWARD -i ppp0 -o eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A FORWARD -i eth1 -o ppp0 -j ACCEPT
pc2:
ifconfig eth0 192.168.0.2 netmask 255.255.255.0
ifconfig eth0 up
route add default gw 192.168.0.1 eth0
/etc/resolv.conf (The same DNS as the first PC)
And now the internet is working and on the archlinux machine, but I am not able to access the web server from LAN with a public IP. I tried many iptables port forwarding commands but none worked.
Networking :: Port Forwarding In Router For Wol?
Mar 4, 2009I have the wake on lan option enabled on my debian computer. If i wake it by sending:
-mac adres
-internal ip in my home network
-subnetmask
-port 7
It all works fine, but when i try to do it from outside my network and change the ip address to the router adress it wont go on. I have also opened the port 7 in my router.
Networking :: Port Forwarding With IPTables?
May 6, 2011I have a server running debian squeeze and kvm to virtualize a Windoze box. It's setup to use NAT. This is because of limits on the network by the admin and unfortunately, there isn't a way to get around this.
View 1 Replies View RelatedNetworking :: Prerouting - Port Forwarding ?
Jul 24, 2010Have router running Fedora 11 with eth0 - Internet (with static IP) and eth1 - LAN using IP 192.168.0.8.
I want to contact over RDP my Windows 7 machine, so I added to iptables:
But this won't work.
Networking :: SSH Dynamic Port Forwarding
Jan 15, 2010I've setup dynamic port forwarding using Putty, SSH and Firefox.All works well when visiting normal websites (servers listening at port 80). But why can't I visit https websites?Nothing seems to be happening when I visit those.
View 2 Replies View RelatedFedora Networking :: Port Forwarding Does Not Work
Mar 22, 2009I have a question regarding port forwarding. I have a fedora server, with two eth cards: eth0 ---> external IP, eth1 ----> LAN IP I use SNAT for connection sharing. I also have an internet domain hosted on this server... let's call it [URL] Anyway, one of our computers in the LAN has some kind of web server on it, which must be accessed from the internet on the port 23700.
So, using iptables -t nat -A PREROUTING -i eth0 -p tcp -m tcp --dport 23700 -j DNAT --to 192.168.1.25 (the IP of the network computer) Everything works perfectly fine from outside the lan. When I type [URL], I connect to that computer. My problem is that inside the lan, typing [URL] does not work! It only works if I enter it by IP 192.168.1.25:23700 Is there any way to make the server forward my request to that specific computer even if I'm inside the LAN?
Fedora Networking :: Port Forwarding Not Working?
Apr 23, 2009I am running Fedora Core 10 and KDE 4.2.1. My KTorrent is having trouble finding online peers lately. I suspect this is a port forwarding issue. I have set up my router to forward port 4444 (UDP) and port 56000 and more (TCP) to my machine's IP address. I have also set my local firewall (system-config-firewall) to allow these ports through.But when I try to test ports 4444 and 56000 via this Open Port Check Tool, it tells me they are closed
View 6 Replies View RelatedFedora Networking :: Port Forwarding For Remote NFS?
Mar 31, 2011I'm trying to implement remote NFS in our network
So I read a lot of posts on the Internet, but I don't understand which ports I have
to open/forward for this.
On some posts I see a lot of ports, I don't want to do this.
If this is the case, and I would set up NFS through an ssh tunnel, then do I only need the ssh port and does this mean it will always work if the server is reachable through ssh?
Or is this wishful thinking ?
Ubuntu Networking :: Terminate SSH Port Forwarding
Jan 31, 2010I have a script to establish a reverse tunnel with other machine,My problem is to stop the tunnel. If I just kill the PID at sshtunnel.pids, ssh does not release the ports at the server side, so any new connection will fail for several minutes.Is there any way to signal SSH to exit gracefully?
View 5 Replies View RelatedUbuntu Networking :: SSH Port Forwarding For Web Server
Feb 20, 2010This should be easy but for some reason its not working. I don't have admin rights on one of my local networks to open the firewall for port 80 to make my server accessible remotely (from the internet). I have a remote server (OpenVZ VPS) and I want to port forward so that [url]:8080 will point to my localhost:80 from the internet itself (i can get it to work on the remote VPS server's local network)...
How could I accomplish this? Basically, I am trying to serve webpages from behind a firewall using a VPS as a hub.
Ubuntu Networking :: Set Up Port Forwarding On Laptop?
May 6, 2010would it be possible for anyone to give me step-by-step instructions on how to set up port forwarding on my laptop? I've been using Karmic Koala and just upgraded to Lucid Lynx and not really bothered to port-forward before, so not too sure where to start - googling gives me a lot of terms I don't understand.
View 1 Replies View RelatedUbuntu Networking :: Two Nic Cards But No Port Forwarding?
Jul 6, 2010I have two nic cards installed in a Lucid LTS server.
eth0 is static using
address 192.168.0.235
gateway 192.168.0.1
netmask 255.255.255.0
[Code]...
I have my Qwest DSL modem port forwarding port 80 to 192.168.3.235 however this doesn't seem to work if I have both cards running. If I remove the second card (eth1) and reconfigure eth0 to use 192.168.3.235 I can port forward into my webserver.
Ubuntu Networking :: Router Port Forwarding For Ssh
Aug 22, 2010I have logged into my router and set up port-forwarding on port 22. I can log into the machine fine from a machine on the local network using the machines internal IP but when I try to log on from a remote machine using my router's external IP or my DyDNS host-name I get a message saying "connection refused" or "connection timed out." I have configured port-forwarding on the router and the firewall rules says that port 22 is open but when I nmap my routers external ip it says that only port 23 and 80 are open. I am very new to linux and networking.
View 8 Replies View RelatedUbuntu Networking :: SSH Port Forwarding With X11 And SSHFS?
Nov 2, 2010I've used wake on lan and SSH on the local network for some time now. I also used SSH to mount a filesystem (SSHFS / sftp, same thing, right?) and I could forward X11, loved it. I used both these options for my convenience. So I decided it was time to open up some ports on my router (Linksys WRT320n running dd-wrt) and try to set up a remote connection. This actually worked after some time, so I'm now able to turn on my home computer from the Internet (school in my case) and then log in to it through SSH. I set this up using other ports then the default ports. Something like this (these are not the actual ports I use, just examples):
port 2112 -> port 9 (for wol, wake on lan)
port 2113 -> port 22 (for SSH)
This information might be useful: I set this up using public and private keys. This is necessary for SSHFS to work properly I think and it also makes it more secure. And then I found (and had some presumptions that this was going to happen) that both SSHFS and X11 were not working. I'd rather not open up more ports on the router for security's sake though, so I'm asking for other solutions. And if there really aren't any other solutions then which ports to forward. And if forwarding is really necessarily then how to make the client use port 2114 for SSHFS and 2115 for X11 so I can forward those ports to the default ports.