port-forwarding on firewall or via SSH

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-1
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0answers
13 views

Port Block Issue Nginx [on hold]

I have a server that I am accessing externally. This is how I configured it in nginx to proxy pass using ssl to the port I want: server { listen 1234 ssl; listen [::]:1234 ssl ...
0
votes
0answers
29 views

port forwarding with pf on Mac OS 10.9

I have to setup a port forwarding on Mac Os 10.9. The mac is connected to a OpenVPN, and I need to get access to another machine on the private network of the mac through that VPN. Apparently, Mac OS ...
0
votes
2answers
23 views

How to use single public IP to access multiple application servers in SAP?

Scenario I have: Wireless D-Link Router Connected to the Internet Two IBM-Lenovo Servers Connected( Wireless/Wired) to the Router Two servers have IP addresses : 192.xxx.xxx.123 and ...
1
vote
2answers
24 views

How do I resolve OpenSSH protocol mismatch? [closed]

I'm trying to get around a hospital firewall. I can SSH into my devbox on Port 443: ssh -L 8080:devbox:443 root@devbox -p 443 But I can't actually get the devbox to load in my browser. When I go ...
0
votes
1answer
24 views

Receiving incoming traffic without external IP and port forwarding

I have a virtual machine in the datacenter with an external IP. I can connect via SSH to this virtual machine from my desktop, but this virtual machine has no way of accessing any ports on my desktop. ...
0
votes
0answers
3 views

Port Forwarding to make my localhost available for everyone [migrated]

I have installed Apache web server on my local linux machine. Now, I followed the steps described here to do port forwarding. I wanted my localhost to be accessible from outer web too. Now, I am ...
4
votes
1answer
136 views

Setting up IPTables

I am trying to remove a router from our product and replacing all its functionality with the use of iptables. The system is required to perform general traffic control as well as forwarding data to ...
0
votes
1answer
38 views

Setting up port redirection on Windows Server 2012 in Amazon ec2

I have a couple of servers in amazon EC2 One server is a Windows Server 2012, is used to host a web application, there is an elastic ip address attached to this server. The second server is a linux ...
1
vote
0answers
44 views

Publish or forward ipv6 port range to Docker container

I'm building a IPv6 enabled FTP container based on pure-ftpd and I have the problem that passive mode needs the client to connect on any port in the range of 30000 to 50000 to the server on the ...
1
vote
1answer
57 views

Ubuntu 14.04 LTE forward port to another port

I am looking for a way to forward 1 port to another internally. I have an Ubuntu 14.04 server on which I installed a game server that listens on port 25565. The game does not support multiple ports. ...
0
votes
0answers
5 views

Port forwarding works on Ubuntu but doesn't work on windows [migrated]

I set up my wireless router to port forward 80 -> 80 (as well as 8080 -> 80) to my local http server. I have dual boot windows + ubuntu and both of them have apache installed. The problem is if I boot ...
-6
votes
2answers
53 views

How can I create a domain name for a Public IP address? [closed]

I configured port forwarding to a private ip so I can access my app from anywhere, with the address of http://66.189.127.96:333/. I want to be able to access this from example.com, not ...
0
votes
0answers
40 views

Cisco ASA 8.2, accessing an internal webserver with an external IP-address together with port translation

We have one web server, let's call it SERVER01. It is running two different web servers that both uses HTTPS, INTERNALAPP on port 443 and EXTERNALAPP on port 444. In a previous setup we had an old ...
1
vote
0answers
31 views

trying to reach a port forwarded server from the subnet using the public IP not working

I set up a server which is connected to my router. The router forwards a port of my server. So when I scan that port using http://www.t1shopper.com/tools/port-scan/ I got: 188.143.126.14 is ...
-1
votes
1answer
21 views

how to help 2 devices share local ports behind firewall through a ssh server with ssh reverse tunnel port forwarding [duplicate]

A diagram of the project: It is working under Putty with its GUI configuration, but it is not working if using command line through Putty. how to replicate the GUI settings in putty with command ...
0
votes
0answers
79 views

ssh reverse tunnel port forwarding connection fails

Updated: diagram http://s22.postimg.org/b2jfgawup/diagram_ssh_tunnel_a1.png I am able to do a reverse port forwarding through the PUTTY GUI with settings similar to below. once I apply this setting, ...
0
votes
0answers
127 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
1answer
54 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
82 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 ...
0
votes
0answers
74 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
76 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 ...
0
votes
0answers
13 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
1answer
111 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
39 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
102 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
129 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
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0answers
46 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
4answers
754 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
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0answers
42 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
40 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
83 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
234 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 ...
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votes
3answers
62 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
26 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
106 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
913 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
91 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
64 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
161 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
78 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
48 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
1k 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
164 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
48 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
100 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
87 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
105 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
212 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
270 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
54 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, ...