port-forwarding on firewall or via SSH

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1answer
963 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 ...
-2
votes
0answers
18 views

Port forwarding lxc

I am trying to configure ssh for an LXC container with iptables port forwarding. But it is not working. The following is the result of iptables-save. *mangle :PREROUTING ACCEPT [10428:3784706] :INPUT ...
0
votes
1answer
53 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 ...
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votes
2answers
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
58 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 ...
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0answers
12 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
140 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
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0answers
11 views

Private networks and port fordwarding with Virtualbox not working together [on hold]

I have two virtual machines inside a Windows host. I would like to setup a virtual network (not bridged) such that both machines are able to communicate with each other. In addition one of the host ...
-1
votes
1answer
568 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
29 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 ...
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0answers
30 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
758 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 ...
0
votes
1answer
741 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 ...
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 ...
2
votes
2answers
474 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
1answer
742 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 ...
2
votes
2answers
928 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 ------------------ ...
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2answers
27 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
1answer
739 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 ...
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vote
2answers
32 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
3answers
952 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 ...
1
vote
1answer
823 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
1answer
27 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. ...
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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
142 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
2answers
787 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
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
45 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
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0answers
436 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
65 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
74 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. ...
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votes
2answers
684 views

Proxy-ing a SOAP server

I need to communicate with a httpS SOAP server on a different port than the standard 443. The client app doesn't work (because of restrictions) with different ports than the standard ones for HTTP and ...
1
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4answers
879 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 ...
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votes
2answers
56 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
52 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 ...
9
votes
7answers
4k views

Loopback to forwarded Public IP address from local network - Hairpin NAT

This is a Canonical Question about Hairpin NAT (Loopback NAT). The generic form of this question is: We have a network with clients, a server, and a NAT Router. There is port forwarding on the ...
1
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0answers
35 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 ...
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votes
1answer
22 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 ...
-1
votes
1answer
839 views

How to access server using public ip when in the network itself? [duplicate]

I've asked this question and even searched around but didn't get a useful answer for me. Basically what im doing is i have a webserver on internal ip 192.168.0.100 port 80. So if im in the network it ...
5
votes
4answers
2k views

Use iptables to forward ipv6 to ipv4?

Currently I have a setup where, due to configuration that would take forever to fix, I have a server that can only be accessed by ipv4. I also, however, have a server that can be accessed by ipv6. I ...
0
votes
0answers
97 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
1answer
58 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 ...
1
vote
2answers
777 views

Port-forwarding HTTPS web server

I have port forwarded our front-facing IP to an internal HTTPS server. The browser does not connect. A wget command determines that the certificate is self-signed for the internal IP. Hence why the ...
0
votes
1answer
99 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 ...
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vote
2answers
2k views

alias port / port forwarding to another local port

I am using Amazon Linux AMI in EC2. Previously they allow me to enter different external port from internal port in the AWS web console (in the security groups). Now they only allow the same port for ...
0
votes
6answers
355 views

Does connecting to the default host via public IP from within its subnet cause any issues?

I'm setting up a small office network with a single public IP (let's say it's 69.16.230.117). I've configured NAT on the router with incoming traffic forwarded to the server (say the server has a ...
0
votes
0answers
77 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
83 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
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0answers
14 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
119 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 ...