port-forwarding on firewall or via SSH

learn more… | top users | synonyms

0
votes
0answers
5 views

Why doesn't my router let me forward ports outside of 192.168.x.x range? [migrated]

Simple task: I want to forward port 80 on my Linksys router to a server with an IP address on the network that is NOT in the range 192.168.x.x (or whatever the default range is for the router). ...
0
votes
1answer
768 views

how to setup sonicwall tz210 to port forward packets received from external ip to another external ip

i have a sonicwall tz210 on a fixed ip, say ip1. And then i have, let's say a legacy server, with external ip ip2, which sends data to ip1 (and I have another server on ip1 behind the sonicwall which ...
0
votes
2answers
61 views

Forwarding HTTPs requests to another webserver

I have an Ubuntu 12.04 Server connected to two subnets. Eth0 is 20.20.20.1, it hosts an Apache Web Server on port 80. Eth1 is dynamic IP address in 10.10.10.0 subnet. This server is not a gateway ...
1
vote
1answer
950 views

Assign ipv6 address to KVM guests on bridge mode

System: CentOS 6.5 Network: Bridge on br0 IPv6: ISP Native /64 block. IPv4: ISP address (not internal LAN) Purpose: To assign IPv6 only to guests (manually), I don't want ipv4 address to be ...
2
votes
2answers
979 views

Iptables: Forwarding packets doesn't work

I have 3 Linux Systems A, B and C. A is a TCP Client and sends a message to TCP Server on C. A can see only the external IP of B which is at wlan0 interface, 192.168.0.3 ------------------ ...
-3
votes
0answers
24 views

How to relay packets to another ip/port

I am testing M2M communication over TCP between an embedded controller and a server. The controller board is several states away in an office hooked up to Ethernet. My contact there left it running ...
0
votes
1answer
260 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 ...
0
votes
2answers
28 views

SSH tunnel (port forwarding) slow down a lot my mysql queries

I'm currently testing some configurations with vagrant (virtual box) to connect 2 servers (VM currently) together throw an SSH tunnel. The goal being to securely connect my web app to the database. ...
-1
votes
1answer
22 views

openvpn client port forwarding? [on hold]

I'm running on a linode and trying to open a port to the client. I've run the following commands and it isn't working... iptables -t nat -A PREROUTING -p tcp --dport 47201 -i tap0 -j DNAT ...
1
vote
1answer
835 views

LAN->LAN IP translation (for TortoiseSVN + Artifacts + Buffalo router)

Here's my scenario: I've got a VisualSVN server on my main dev box @ home. I'm also using Visual Studio 2010, TortoiseSVN, VisualSVN client (for source control), and Versioned 'Artifacts' (for bug ...
0
votes
3answers
1k views

Forward traffic to local LAN IP while keeping the originator IP

I am trying to forward traffic from one server to another, while keeping the origin requestor IP. Therefor I cannot use SNAT or MASQUERADE. SERVER A: Public IP: 111.111.111.111 Private IP: 10.0.0.1 ...
0
votes
3answers
954 views

Using a nat rule to translate 80/443 traffic to web server, but internal users cannot access it using external ip/domain name

I am using Cisco ASDM for ASA I have my internal network called soa. My outside interface is called outside. Let's say my outside IP given to me by my ISP isp is y.y.y.y I have a web server inside ...
-1
votes
0answers
13 views

YaCy not forwarding [closed]

I'm running a YaCy server to try to index a webserver running on my computer. I want it to be accessible from the outside, and I forwarded the correct port. However, when visiting my ip address:8090 ...
-2
votes
0answers
9 views

How to Automatically to redirect to another port based on Ip Client? [closed]

Is there away to setting up Iptables for Design Like This without typing port on the url address? Website Departement A 192.168.0.1:80 Website Departement B 192.168.0.1:8080 Website Departement C ...
0
votes
1answer
30 views

What can explain my port forwarding not working?

I am trying to forward port 443 to a different server using iptables. What can explain this not working? I've enabled net.ipv4.ip_forward. This is the code I use. I have no other iptables rules: ...
2
votes
2answers
1k views

iptables packet forwarding to one of two gateways depending on origin

Given the following installation: old router 192.168.1.1 with NAT forward of tcp port 80 to 192.168.1.10:80 new router 192.168.1.2 with NAT forward of tcp port 80 to 192.168.1.10:80 web ...
0
votes
0answers
25 views

OpenVPN won't connect from remote location [migrated]

I set up OpenVPN on a linux machine in my basement. I'm able to connect from my Windows 8.1 machine without an issue when I'm connected to the local network. In this instance, I set the config file ...
0
votes
2answers
1k views

Web server behind MikroTik and dynamic dns

I recently purchased a MikroTik router, it works great! However, I haven't been able to make my web server work from outside my lan I'll explain better: I have two domains in my disposal, before I ...
0
votes
1answer
50 views

iptables on Linux router does not forward DHCP between two LANs

I have an internal network as follows: A Linux system that serves as router, using iptables, with two network cards A client machine A DHCP Server The Router's eth1 is on the same LAN as the ...
0
votes
2answers
1k views

cisco ip nat / port forwarding

I have been trying to get port forwarding working with a newly installed cisco router. I cannot seem to find where my fault is and have been looking for quite a while. The relevant section of my ...
0
votes
0answers
63 views

Linux router with multiple gateways and port forwarding

I want to use a Linux VM to act as several routers at once. I have multiple servers hosting different services and dedicated public IP for each of them. Super simplified setup example: Ubuntu ...
2
votes
4answers
2k views

LXC, Port forwarding and iptables

I have a LXC container (10.0.3.2) running on a host. A service is running inside the container on port 7000. From the host (10.0.3.1, lxcbr0), I can reach the service: $ telnet 10.0.3.2 7000 Trying ...
0
votes
1answer
1k views

iptables forward rule not working in openwrt

I am trying to apply some iptables forwarding rules in openwrt. Here is my scenario - My server has two cards ath0 and br-lan. br-lan is connected to internet and ath0 to private network. The other ...
0
votes
1answer
763 views

port forwarding on windows server 2008 to Hyper-v machines

I have a host machine (win server 2008 R2) with several Hyper-V virtual machines. I want to be able to redirect certain ports of host to virtual machines. There is virtual network connection between ...
0
votes
0answers
43 views

Reroute outgoing port through other server

I want to run a xmpp-server on another IP than the A-record of the domain points to. +--------+ +--------+ +--------------+ | xmpp | -----> | web | -----> | internet | | ...
0
votes
1answer
55 views

ssh tunneling not working due to strict iptables

my iptables are set so that I can only allow ssh connections. I tried ssh tunneling and I can connect to my sever, but after when I try using my server as a proxy on firefox, pages try to load ...
1
vote
1answer
2k views

SSH tunneling with Synology

I try to tunnel SMB and AFP services through SSH to acces my NAS shares on my machine. I already do it successfully with my ReadyNAS using the following command line (ran as my user on my mac) : ssh ...
0
votes
2answers
33 views

Remote port forwarding through EC2 not working, though address is in use

I have a remote machine running a server which I'd like access to locally. However, I can only SSH into the machine, not use any other ports. I booted up an Amazon EC2 instances and opened all its ...
5
votes
1answer
4k views

Forwarding linux terminal from serial port to TCP with socat

I'm working on embedded ARM platform, Slackware. I'm using G24 Java modem which is configured to forward data between ports /dev/ttyS1 and /dev/ttyACM0, so anything that goes onto any of these ports ...
1
vote
2answers
169 views

How to redirect smtp port from 25 on one ip to 2525 on another external mail.domain.com? [closed]

How to redirect smtp port from 25 on one ip to port 2525 on another external mail.domain.com? Example: I have ip as xxx.xx.xx.xxx and listening port as 25 for smtp, now I want to forward or redirect ...
1
vote
1answer
25 views

It it safe to forward an ephemeral port to an internal host in a NAT environment?

Short story, I want to expose SSH from a box in a NATed environment to the internet but would prefer to do it on a high (in the ephemeral range) port. Is it safe to port forward an ephemeral port to ...
0
votes
1answer
66 views

Redirect ssh trafic for one user through another port

Is it possible to have a configuration like this: A server which listen ssh connections on port 22 as usual For one user (let's say git) redirect all the traffic through another port (2222 for ...
1
vote
0answers
28 views

Use TURN for remote port forwarding

I want to forward some ports on a machine behind a NAT to a publicly accessible server. I can do this via SSH (and doing so already successfully), however SSH encrypts all the traffic which in my case ...
3
votes
1answer
102 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 ...
0
votes
1answer
161 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
1answer
60 views

multiple servers porting to each other

here is the details: theres is who "servers": VPS with ubuntu 10.10x32 and home pc, win7 on win7 apatche2.2 is running with webpage on VPS game server is running DNS forwards www subdomain to PC, and ...
0
votes
0answers
15 views

Spooling error trying to print through WinXP to Win7 from Linux

I recently posted another post here about not being able to print from linux to win7 but found a solution that i might be able to work with. What we have is Fedora Core 2.x.x(2003), Redhat 3.2.3, ...
0
votes
1answer
170 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 ...
-1
votes
1answer
610 views

Forward localhost memcached server on port 12111 to domain.com memcached server

My customers are running many scripts that uses memcached, but all of them are using localhost as a address. My localhost server is now out of RAM, because it's doing many other things like WWW and ...
1
vote
1answer
39 views

How to forward a port to multiple internal ips

I have a Centos 6 64 bit server with OpenVPN installed. I'm using this iptables rule to forward a port for an OpenVPN user: iptables -t nat -A PREROUTING -p tcp -m tcp --dport PORT -j DNAT ...
0
votes
0answers
31 views

IP TABLES port forwaring corrupts my packets?

Here's my scenario. I have a WORKING DAEMON receiving packets through a proprietary protocol (mounted on the port 5000) that has been working flawlessly for over a decade. I have a weird problem ...
0
votes
2answers
999 views

Iptables port forwarding on AWS EC2

I have AWS VPC with 1 public subnet and 1 private subnet. I have my web-server running on port 80 in private subnet. I want this webserver be accessible form public internet Yes, The VPC security ...
3
votes
2answers
603 views

VPC SSH port forward into private subnet

Ok, so I've been racking my brain for DAYS on this dilema. I have a VPC setup with a public subnet, and a private subnet. The NAT is in place of course. I can connect from SSH into a instance in the ...
0
votes
2answers
46 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
78 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
42 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. ...
4
votes
1answer
154 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
76 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
524 views

Puppet agent (v3.0.1) hangs connecting to master (v3.1.1) in VM behind firewall (with NAT based access)

I am using puppet agent v3.0.1 (On FreeBSD), trying to connect to a puppet master v3.1.1 (On Ubuntu) and the puppet agent hangs with the following debug output: puppet agent --debug --no-daemonize ...
1
vote
0answers
180 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 ...