Redirect a port to another one, used to access a computer from behind a firewall.

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0
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1answer
97 views

networking port forwarding to ssh tunnel

I have a quick question regarding Linux port forwarding to an ssh tunnel. A ssh (reverse) tunnel connected to a web service on one machine is terminated on one machine, such that the service is ...
0
votes
1answer
42 views

IPTables forwarding no more connection

I have a VPS for protect windows server from DDOS so I have forwarding connection. The forward works great but I can't access to the internet with the VPS. Ping doesn't works and I can't update or ...
0
votes
1answer
479 views

BIND9 zone forwarding is not working at all. How can I troubleshoot?

I've read a lot of other ServerFault BIND9 DNS not forwarding questions and answers. Queries (using DiG) for FQDNs I expect to be forwarded respond as if the public internet has the authoritative ...
2
votes
1answer
4k views

Iptables udp port forwarding [duplicate]

I'm using latest debian relese and i need to do some port forwarding, but i dont know how.I have 2 stream sources coming to my server on the same udp port from 2 diferent ip-s 192.168.1.2:1003 via ...
0
votes
1answer
525 views

What is the bind address used for when forwarding a port via SSH?

I have a brief understanding of port forwarding via SSH. So let's say I have a VNC server up and running at port 5901. I pick up my laptop, go to work, then I want to connect to my server, but I want ...
1
vote
0answers
55 views

Ban IP doesn't work with forwarding [closed]

I use à VPS like a bridge for an other server. I use apf-firewall and this file /etc/apf-firewall/preroute.rules for forward somme port one the other server. This is the end of the file: iptables -...
1
vote
1answer
156 views

How to forward domain resolving by prefix? [closed]

Sometimes I have to connect to my work network throughout VPNC. That network has DNS server. I don't have a permission to pull zone files from it. And I have local bind server which forwards to 8.8.8....
1
vote
0answers
162 views

AD DNS conditional forwarding returns short name instead of fqdn

First of all this isn't a copy of DNS Conditional forwarder returns NETBIOS instead of FQDN (just sounds very similar). We have two separate domains that do conditional forwarding to eachother. Each ...
0
votes
2answers
148 views

Root Domain cannot forward to www (Heroku, Cloudns)

My website (http://www.carshare.hk) has a problem with the naked domain. When it is served with the root domain, the server cannot hit anything. But I have followed through the guides from heroku ...
0
votes
1answer
106 views

Forward/Redirect request of Elastic IP to Heroku [closed]

I have a hardware with a Elastic IP(Amazon) hardcoded in the firmware(I know, it was a dumb idea, but wasnt my idea). Now I have to forward a request of this EIP(Elastic IP) to a Heroku instance. I ...
0
votes
1answer
921 views

redsocks + socks server on different machine

I have the following setup: Host-X (192.168.1.100) running ssh -D so that it can be used as a socks server. Host-Y (192.168.1.101) running redsocks configured with Host-X as socks. They are in the ...
-2
votes
1answer
215 views

How can I avoid being classified as spammer when I forward mail to a gmail account? [duplicate]

Update: The link pointed to by the "duplicate" initially didn't seem like the same problem to me, because the post talked about blacklisted "domains" not blacklisted "IP addresses." However the main ...
-3
votes
1answer
136 views

When tunnelling through a VPN, block or redirect certain domains [closed]

I'd like to block or redirect certain domains for anyone using my VPN tunnel (pptp). I thought simply editing the hosts file would achieve this, but I guess not. Is there another way? The VPN is set ...
0
votes
1answer
724 views

Postfix forwards to Gmail being rate limited even with unmodified headers

I've installed Postfix on Ubuntu 14.04 with the defaults. I then configured some virtual aliases to forward email from a few addresses to various personal (mostly Gmail) accounts. This is just to make ...
0
votes
0answers
315 views

Ipfw forward from table to IP

I try to forward on FreeBSD all requests on port 80,443 from clients in some table to one IP. ipfw add 80 fwd ip from "table(10)" dst-port 80,443 to x.x.x.x:80 So, not working... What i did wrong?
0
votes
2answers
107 views

How do you load balance a forwarding only server… with no authoritive zones?

New Thought and possible answer to my Question? Would it be possible to change the root config file (the db.root with A/B/C/D/E/F/etc.ROOT-SERVERS.NET) and remove the original entries (i.e: ican ip ...
1
vote
1answer
103 views

Redirect packet that matches a pattern?

How can I route an incoming udp packet with iptables that matches a pattern like: 53 41 4D 50 5B 79 95 DB 61 1E 69 from public interface (vmbr0) and port 7777 to 192.168.0.1:7777?
1
vote
3answers
460 views

Forward Traffic in & out, NAT iptables

I have a box setup as DHCP Server with NAT ipv4 forwarding enabled. Currently the box uses eth0 to connect to a local network and has access to the internet, it has another 3 interfaces, eth1, eth2 ...
1
vote
2answers
608 views

IPv6 PPP Link fails forwarding Router Advertisements into local LAN

A Debian Server having eth0, eth1. eth2, ppp0 devices: 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether xx:yy:zz:yy:xx:yy brd ff:ff:ff:ff:...
0
votes
0answers
385 views

OpenVPN Port forwarding on a OpenVZ VPS

I've been trying for the past 3 hours to forward the 443 port from my client to the 20443 port on my server (CentOS 7 on OpenVZ), so i can access it on myserverip:20443. I have OpenVPN Access ...
0
votes
1answer
67 views

Reviewing source of DNS requests

Is there a way to know the source of DNS requests which were handed to the Forwarder (requests which were handled by the DC are of no interest)? If I set up a BIND server which is a forwarder to the ...
0
votes
1answer
238 views

Iptables SMTP re-routing on a proxy

I'm lost... Any help would be appreciated :) I have a mailserver. Unfortunately, the provider deny the smtp 25. I don't want to use ESMTP or a vpn. So here is the project : I have a dedicated server ...
1
vote
3answers
5k views

Forward the root domain to the www subdomain using DNS records

I have www.mydomain.com pointed at an Azure Website. www.mydomain.com --- CNAME --- mydomain.azurewebsites.net When I visit www.mydomain.com, everything works fine. This is good. Problem is, ...
0
votes
2answers
375 views

Cisco 887VA - Cannot open port 110

I am trying to configure a Cisco 887VA at work to open port 110, but no matter what I try, it doesn't seem to work. The router is accessed from within the building via a web UI but require CLI ...
0
votes
1answer
45 views

SSH forwarding by username [duplicate]

I want to make available a pool of dev machines to a pool of developers, where each developer should only access its own dev machine. Dev machines are on a private network, behind a NAT, whereas ...
-1
votes
1answer
46 views

Email forwarding?

I am not sure if this is possible, but please bare with me. I had a quick look around this morning, but as I wasn't sure what this was called or how to describe it thought it was best asking. We ...
1
vote
1answer
138 views

block forward traffic targetting another network

I'm learning about a bit more about firewalld and I've been able to create an unsafe network to where I can connect from my internal network, but now, I'm stuck trying to prevent the unsafe network ...
1
vote
1answer
814 views

Postfix as email forwarder to gmail, SPF problems

I'm trying to configure postfix as forwader to gmail. I've successfully onfigured the virtual aliases for the domains I'm hosting and that I want to redirect, but the Gmail SPF verification is failing ...
1
vote
2answers
1k views

Https url appended with port 80 using CloudFlare, Nginx, and Thin

I have a Nginx setup for my Thin server running a Ruby on Rails project. Nginx is currently the endpoint for my SSL. I recently had some issues with attacks on my webserver, so I decided to add ...
0
votes
0answers
171 views

Setting up a firewall to route between interfaces on a gateway

I've been trying to setup a firewall on my debian gateway with iptables. The gateway is connected to a a network 12.120.0.0/24 on eth0 behind a NAT and the subnetwork behind it is 12.120.4.0/24 eth1. ...
0
votes
0answers
33 views

How to set up an VPN Server which directs a connected users browser requests to one specific domain to another IP address?

I'm about to create a testing environment for my clients, which have to access certain web addresses. What I want to achieve is the following: A client connects to the VPN server He opens a browser ...
0
votes
0answers
91 views

NAT with port forwarding on same interface

I have some issues with the port forwarding on same interface. I have server1 with the public IP 5.1.1.1 and one company publish a MySQL database with IP 10.1.1.1 through VPN reached only by server1. ...
0
votes
1answer
589 views

DNS Conditional forwarder returns NETBIOS instead of FQDN

Strange DNS problem for which I hope you can help. Active Directory with NETBIOS name "Shortdomain" and as FQDN "verylongdomainname.lan". Domain controller DC01 behind firewall. IP: x.x.x.1 Customer ...
-1
votes
1answer
115 views

private network with single IP multiple servers [closed]

I am trying to set up a subnet in our company. We got several (10+) Linux servers for computing but we can only get 1 static IP (company policy, 10.x.x.x address). So the idea is to place a routing ...
2
votes
1answer
714 views

Resolve root domain to IP, forward all other sub domains to public DNS

This is my zones file zone "domain.com"{ type master; file "/etc/bind/db.override"; }; zone "cpanel.domain.com"{ type forward; forwarders { 8.8.8.8;8.8.4.4; }; ...
1
vote
1answer
174 views

How to forward requests received with a specific Header OR from a specific IP address with a LAMP stack

We have a Symfony2 application which is in heavy development and have just signed our first production client. We want to temporarily put this client on another cluster that is stable while we ...
11
votes
3answers
13k views

e1000e Reset adapter unexpectedly / Detected Hardware Unit Hang

I have a Dell 1U Server with Intel(R) Xeon(R) CPU L5420 @ 2.50GHz, 8 cores running Ubuntu Server Kernel Version 3.13.0-32-generic on x86_64. It has dual 1000baseT networking cards. I have it set up to ...
-1
votes
1answer
63 views

send udp packets to a destination via forwarding

i have linux machine A ( 128.247.19.194, netmask 255.255.254.0) linux machine B ( 128.247.19.165 netmask 255.255.254.0) And another linux machine (128.247.19.3 netmask 255.255.254.0) There is a ...
0
votes
1answer
479 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
1k views

Port forward remote desktop without a gateway over 3G modem router [closed]

I'm trying to connect from a laptop, through a VPN, and a 3G modem/router, to a remote PC / computer. PC (192.168.1.33) | 3G Modem (192.168.1.22) | [3G internet, connecting to VPN] | ...
0
votes
0answers
492 views

One public IP and two web servers

We have our IBM server (internal ip: 192.168.1.128) connected to internet via router (192.168.1.1). I have forwarded the following port: Port 80: internal IP 192.168.1.128 for incoming HTTP ...
0
votes
1answer
186 views

Tunnel http requests to another server?

I have a VPS we'll call it mydomain.com Is it possible when someone goes to mydomain.com, the request is forwarded to another different server, let's say 192.168.0.5 processed by that server and then ...
8
votes
1answer
2k views

mosh-like port forwarding

This is on linux, connecting to linux servers: I love mosh, but it doesn't support port forwarding, and likely won't for a while since it's been almost a year now and it hasn't happened yet. port ...
0
votes
1answer
137 views

IP Forward at router

Is there any way to set a router to simply redirect all traffic to another wan IP address? For example, I have a static wan ip of xx.xxx.xxx.123 and I want to forward all traffic to xx.xxx.xxx.124 ...
7
votes
3answers
17k views

new DNS zone with Forward to external DNS

I have read DNS and Forward Lookup Zones but I did not fing the aswer there. I have Microsoft Domain with Active directory server , and DNS server for internal use. My local domain called example....
0
votes
1answer
404 views

Forward DNS queries of a subdomain to another port

I have some software which provides dynamic information via DNS, similar to a DNSBL. How do I run it on the same server as a BIND server that's also serving DNS requests for other domains? I just ...
0
votes
2answers
547 views

Port forwarding between 2 routers and wrong IP at the end

So here is the situation: I have adsl modem connected to 1st router "A" - local IP 192.168.2.1 I forward SSH port to 2nd router "B" - IP 192.168.1.1 On router "B" I forward SSH port to machine - 192....
-5
votes
1answer
37 views

Forward downloads to a seperate physical connection [closed]

So, mothers internet connection is incredibly slow, and she lives in a very rural area and cannot have anyway of acquiring a faster connection. I on the other hand have a very fast connection, would ...
0
votes
1answer
168 views

Forward all network packets from server A to server B (WAN) Ubuntu

I currently run a game server on a VPS and will shortly be moving VPS provider. To make the migration easier on the players I would like players to be able to use the original IP for a short while by ...
1
vote
1answer
1k views

Node.js forwarding from local network to public Internet

I have a Server running node.js in my network that is not reachable via the internet (i.e., no static IP / domain). However, I have a vServer with a domain that is running node.js as well. Can I ...