port-forwarding on firewall or via SSH

learn more… | top users | synonyms

-3
votes
0answers
19 views

EdgeRouter - signals blocked like ports not forwarded (but they are)

i've been configuring my edgerouter router, it get's the internet but the signals are still blocked, just like ports were not forwarded, what could be the problem, maybe something in my WAN_IN ...
0
votes
0answers
19 views

iptables forward port range through OpenVPN

I have a VPN server (the "host" - 10.8.1.1) on a public VPS instance running OpenVPN. The second instance I am running (the "client" - 10.8.1.2) is a local ESXi instance connected to the host vpn ...
0
votes
0answers
9 views

Port forwarding does not work [migrated]

I am connecting to office network through VPN. I have two servers A and B. I have ssh/tomcat access to A through VPN but not to B. When I ssh into A, from there I can ssh into B. Also, B is running ...
-2
votes
1answer
23 views

EdgeRouter Lite NAT to wireless routers [on hold]

i want to connect 2 wireless routers to EdgeRouter-Lite, but im kinda new at this and lost. I know I have to do NAT and the wireless router's ip should be 88.119.128.224 88.119.128.228 (they are ...
0
votes
1answer
36 views

sip unreachable after changing routes using linux router

SIP server was unreachable after changing routes. I have 2 ISP ,ISP 1 is my default and ISP 2 is my back-up. I have a dialer behind linux router linux. Linux router has 3 ethernet cards. Router ...
0
votes
1answer
30 views

Cisco ASA: port forwarding to different IP depending on client IP/subnet outside

I have Cisco ASA 8.2(5) and would like to configure port forwarding. Cisco ASA has 2 interfaces: outside with IP 192.168.57.2 inside with IP 192.168.1.1 I have two subnets reachable through ...
-1
votes
0answers
72 views

No route to host: I can SSH to myself via the IP my router assigns me but not to myself via the IP my ISP assigns me [migrated]

I'm positive this question has been answered somewhere else but I'm not sure what to search for. (I'm trying things like "telnet ubuntu ssh daemon unable to connect".) I can SSH into 10.0.0.9 I can ...
1
vote
1answer
56 views

Posftix mails not arriving to external recipients (closed port)

I have an Ubuntu Server (192.168.1.2) behind a router (192.168.1.1 with static public IP a.b.c.d and domain example.com). Apache works fine and is accessible from the outside under example.com. On ...
0
votes
0answers
43 views

Iptables - Port forwarding has no effect

I have a dedicated server with a single public IP (Say 1.2.3.4) running CentOS. Via virt-manager, I added a virtual machine, running CentOS as well. They are connected through a virtual network: ...
0
votes
1answer
52 views

Port Forwarding on Cisco Router

I'm a Cisco newbie, have the 1841, with two ethernet interfaces: interface FastEthernet0/0: Internal Desired destination IP: 186.67.181.140 interface FastEthernet0/1: External World IP ...
-1
votes
0answers
15 views

how to make a server Running on guest OS in vmware available online to all? [duplicate]

I'm Running Ubuntu with LAMP server on VMware and my Host computer is windows with a public IP address. In Ubuntu Virtual Machine settings, under Network Adapter, I'm using NAT . Then using Virtual ...
0
votes
0answers
10 views

Is it necessary to open all used ports when using one Node.JS application to route from port 80 to apps on different ones?

I'm working with an Ubuntu 12.04 LTS, 64 Bit server there I have used the following commands to send all http request on port 80 to port 8080 Commands: cat /proc/sys/net/ipv4/ip_forward #returns 1 ...
0
votes
0answers
4 views

Port forwarding on Parallel Desktop [migrated]

My situation is like this. I have a Windows 7 VM run by Parallel Desktop, on which I run ASP.NET on localhost:1240 (Visual Studio development server). Is it possible from my host machine (OSX 10.9) to ...
0
votes
1answer
64 views

Can access server using both LAN & WAN IP from LAN, but no access outside of LAN

I have a server running ArchLinux at home called SERVER. Currently, I can gain access to this machine via SSH by issuing ssh user@SERVER from another computer that is connected on the same LAN. It ...
0
votes
0answers
32 views

Listening “through” GRE Tunnel

Currently I'm looking to learn about using GRE Tunnels and I have the following scheme: Server1 (200.1.2.3) ----> Server2 (190.1.2.3) Both servers have public IPs Then I've setup a GRE Tunnel with ...
1
vote
4answers
61 views

Prevent closing of SSH Local Port Forwarding

I am running various services on an Ubuntu virtual machine running on Azure, and I would like to access some of the services remotely, even though the ports are not open publicly. To do so I have set ...
0
votes
1answer
62 views

Cisco 887VA Port Forwarding Not Working

I have a Cisco 887VA connected to our BT Business Broadband line. We also have another modem on a seperate connection which also handles our DHCP. The Cisco is plugged into our network switch, as is ...
1
vote
0answers
28 views

Setting up a web server behind a ZTE NAT [closed]

down vote favorite I have developed a web app in Java using netbeans and running on a glassfish server attached to netbeans. I would like to show this to some people but I can't get it running across ...
1
vote
3answers
336 views

SSH remote port forwarding failed

Follow-Up: It looks like the rapid series of disconnects coinciding with a few months of running each server is probably coincidental and just served to reveal the actual problem. The reason it ...
1
vote
0answers
29 views

Weird socket behavior in VirtualBox (NAT + PAT)?

I have a Linux VM with NAT and PAT configured. Let's say ports 2000 and 2001 are forwarded to the VM. These ports are also configured for external access on a device such as a router using a domain ...
1
vote
1answer
35 views

Redirection of ports based on domain name via pf

We have a public facing IP on a machine (machine1) running pf firewall. We have multiple machines behind that firewall in a lan. On machine2 in the lan we have a service running on port 443. To make ...
1
vote
2answers
68 views

Give internal access to external client

I am newbie in the networking issues. I got a question for which I don’t know how to solve. I have my internal network that has a fixed IP (only accessed by VPN) and I have a server where I put some ...
0
votes
1answer
149 views

Linux Port Forwarding to different IPs

this is my scenario: Netbook (192.168.1.2) ===> (192.168.1.1) Linux Server (192.168.0.4) ===> NAS (192.168.0.2) Netbook (192.168.1.2) ===> (192.168.1.1) Linux Server (192.168.0.4) ===> Router ...
-2
votes
3answers
55 views

ISP acting as NAT [closed]

I need to host a Server on Public IP in france. I heard from some where that some ISPs will act as NAT and will block all inbound connections. Do anyone have any information on such service providers? ...
0
votes
0answers
21 views

Linux: map external port 1001 to ttyUSB0

I have connected a sensor with my Linux machine on serial port. The port it shows in the device list is ttyUSB0. It works fine from within the machine. Now I need to talk to the sensor from another ...
0
votes
2answers
70 views

Forward port to virtualbox VM without internet access

I want to run Windows VM on my Windows Server and I want to access one port of this VM I can configure VM networking as NAT with port forwarding, this works fine. But I want the machine to do not ...
1
vote
1answer
368 views

Port 80 redirects to CPanel's /cgi-sys/defaultwebpage.cgi even after forwarding

I recently took over the management of a website using a pure Tomcat 6 server (i.e. no combination Tomcat+Apache) with CPanel installed, which is only accessible on port 8088 (i.e. the main page URL ...
0
votes
1answer
64 views

Apache2 reverse proxy connections staying persistent, filling ssh channels

I have a webserver (Amazon Linux EC2 instance running Apache2), let's call it "server A", on which I have set up reverse proxy using: # (All the appropriate modules are loaded higher up in the conf ...
1
vote
1answer
55 views

Something (but not iptables) mysteriously redirects network traffic - how to diagnose?

Summary There is a virtualbox host (1.1.1.5) and a routed guest (1.1.1.6). Something redirects any traffic on port 25 with the guest, whether ingoing or outgoing, to 1.1.1.5 port 2525 and I cannot ...
0
votes
2answers
115 views

How to do the port forwarding from one ip to another ip in same network?

I would like do some NAT in iptables. So that, all the packets coming to 192.168.12.87 and port 80 will be forwarded to 192.168.12.77 port 80. How to do this with iptables? Or Any other ways to ...
-1
votes
1answer
60 views

Linux 25 port routing (tunneling/forwarding)

I have: 1) Centos server 1 with postfic/dovecot mail servers IP1 45.45.45.45 (DNS: host1.com.ua) server 1 cannot make outgoing request to 25 port because Internet Service Provider block it! ...
-1
votes
2answers
43 views

Forward port and protocol from Apache subdomain? [closed]

I have never heavily configured my Apache setup at all. I only use Apache to host an ownCloud and Gitlab server, but Apache's taking the two most unblocked ports: 443 and 80. I want to use Apache to ...
0
votes
1answer
496 views

iptables port forwarding (prerouting port 80) and firewall not working together

I have read many articles and answers on this topic and I have been in discussion with Linode support, but no one seems to be able to answer my exact problem. Seems easy - I'd like to use a iptables ...
1
vote
4answers
115 views

Bridge between two ports on the same network interface on a Linux server

I need to build a bridge between two network ports on a server so everything that arrives on port A goes to port B and everything that arrives on port B goes to port A. I have two devices (dA and dB) ...
1
vote
1answer
45 views

DNS Record or Port Mapping

All, I have a web server sitting inside of a production network. This web server, tdxs3, has been assigned an external IP address of 96.2.192.139 which DNS should point to it's internal IP address of ...
2
votes
1answer
79 views

sshd not responding to port forwarded connection request

I'm setting up port forwarding on a SonicWall NSA 220 router, for port 22. It appears that the router is forwarding TCP packets as it should. However, Wireshark running on the server shows that my ...
0
votes
1answer
71 views

ubuntu subdomain port forwarding

I have a ubuntu server with two docker containers. The first one is running lamp and the second container is running a blog. currently the blog is accessible on mydomain.com:82 (mydomain.com points ...
-2
votes
1answer
85 views

Port Forwarding - Two Gateways Routing - One Network Card [closed]

I have two ports forwarding to my local machine from two different gateways (adsl routers). However, port forwarding only seems to work with whatever is set as my default gateway. Presumably, because ...
-3
votes
2answers
138 views

Access to vCenter Server (in private network) from the Internet through vSphere Client [closed]

I have a vCenter server as a VM on my DPER710 in my internal network. DPE is connected to switch, switch is connected to JSRX, JSRX is connected to my ISP. My vCenter Server is installed on Windows ...
1
vote
1answer
203 views

Port forwarding not working on zentyal

I have tried to setup port forwarding from my zentyal server (port 5000) to my synology NAS (port 5000) too. Here is the result in terms of iptables rules : Chain fredirects (1 references) target ...
0
votes
1answer
50 views

Port Forwarding From Second Router

I have the following setup at work, of which I'm impromptu in charge of: Internet(Modem) <-> Smoothwall (firewall/dhcp/nat) <-> Servers/PCs I need to be able to add a second broadband line in, ...
1
vote
1answer
47 views

NFSv4 through portforward

I would like to reach my NFSv4 servers though port forward. The big plan will be a cluster of NFSv4 servers loadbalanced with HAProxy running on localhost. But this isn't really important now. At the ...
-1
votes
1answer
120 views

Shorewall forward 443 port to two servers [closed]

I have a question/problem. I have two webservers. One is a webmail and the other one is a standard webserver. I need to forward 443 port to both of them. I have added proxyarp to the shorewall and ...
0
votes
2answers
89 views

Portforwarding with IPTABLES and Remote IP detection

I was able to forward 80 port from my primary server 192.168.90.1 to the second one 192.168.90.2 with IPTABLES The primary server has a public address X.X.X.X so I forwarded X.X.X.X:80 -> ...
-4
votes
2answers
246 views

Running a websocket server and a http server on the same server

I am using nginx to to serve an instance of PHP application, and also at the same time running a Ratchet app to listen to a websocket connection. Problem is, both of these instance are using the same ...
0
votes
2answers
81 views

SSH to server port forwarding through router

Hi so we have multiple machines on our network running ssh on port 22, because of this we set up port forwarding in the router as 22->22 for one of the machines and 222->22 on the other machine. The ...
2
votes
0answers
50 views

SSH port forwarding to a host that needs to contact a third named host to access MySQL

We customize and support standard web applications that our customers host on managed servers from different web hosters. Usually, the application consists of a web application in PHP and a database ...
-2
votes
3answers
30 views

How do I open a port to the world in a security group in EC2?

I tried to open a port to an AWS EC2 Windows instance, for example, port 12888. I created a new security rule in the security group, added the port 12888 in the port range but what shall I put in the ...
-1
votes
2answers
182 views

Creating subdomain for Webmin on Amazon Route 53 / EC2

I have setup / installed webmin on Amazon Ec2 instance running linux. After creating user with login credential and adding port 10000 in security group, I am able to login via ...
1
vote
1answer
69 views

Automatically ask router for port redirection on ubuntu

Is there a way to use uPnp or something to automatically ask a router/firewall to redirect data coming from outside to a machine running ubuntu? Here's the deal, I'm supposed to prepare a certain ...