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

learn more… | top users | synonyms

-1
votes
1answer
20 views

forwarding emails via postfix, smart routine to actively check that it works

I have a domain registered at namecheap and run my website on a digitalocean droplet. I have successfully set up email forwarding on the server with postfix, such that emails sent to name@example.com ...
5
votes
4answers
19k views

Difference between routing and forwarding table

What is the difference between forwarding and routing tables?
-1
votes
1answer
37 views

Best way to forward whole ipv6 /64 subnet range to single address (on Linux, obv)? [duplicate]

I want to forward incoming connections to any address within an assigned ipv6 /64 subnet on a VPS. Obviously I can't add a billion individual address to the interface, but perhaps I could use a bogus ...
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 ...
1
vote
1answer
1k views

Setting up a bind forwarder, except for a domain

I'm trying to setup a local bind DNS server (first time dealing with DNS servers, know a bit about records) that: Routes *.internal, *.*.internal to itself (preferably any combination of subdomains),...
0
votes
0answers
24 views

Route/Forward specific traffic to Interface

I want to use a Rasperry Pi as (Wlan-)Router. The Access Point is working so far: I have an Accesspoint with wlan0 (ip 10.10.0.0/255.255.0.0) and wlan1 connected to the internet. Now I want to route ...
0
votes
1answer
41 views

Postfix: Alias from multiple adresses to one

I've installed a postfix/dovecot combination on my VPS the last days and everything works fine. Now I want to add mail forwarding, so that mails with a specific suffix, like this: youtube-account@...
11
votes
3answers
12k 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 ...
0
votes
0answers
9 views

vhosts.conf, keeps forwarding evrything to my second server

I currently have two servers running on a shared IP. svr1.mydomain.com receives the request on port 80, then SHOULD route locally or forward to svr2.mydomain.com. the vhosts.conf below forwards both ...
0
votes
0answers
52 views

Forwarding UPnP, DLNA traffic via computer to server

I'm about to tear out what is left of my hair with this. I was able to finally see traffic coming through, but not working in full, when using socat but this setup is not ideal. The idea: I have a ...
0
votes
1answer
61 views

Domain not pointing to server, redirecting from .in to .com

I ran into a weird situation. I have these two domains example.com and example.in. Earlier I had example.in forwarded to example.com. Now I want example.in to point to my VPS server. I changed the ...
0
votes
0answers
15 views

forward request from one tomcat to other tomcat

I know that what I'm asking can be processed with some webserver(apache/nginx), but in my scenario I can't install it. I've got one tomcat instance running on port 8080 and second on 9080. Only port ...
2
votes
0answers
18 views

running or building docker results in net.ipv4.ip_forward being reset

this is on a rhel6 system (docker 1.7.1 from epel). basically, everytime i do a build or a run, i can see that the net.ipv4.ip_forward sysctl gets reset to 0 - which results in the container loosing ...
0
votes
1answer
7k views

Transparent Ethernet over GRE not forwarding traffic

I am running on Linux 2.6.30.9 and have been trying to setup a transparent ethernet over GRE tunnel. The network topology used is as follows: I want to bridge PC1 and PC2 using Transparent Ethernet ...
93
votes
10answers
39k views

ssh-agent forwarding and sudo to another user

If I have a server A into which I can login with my ssh key and I have the ability to "sudo su - otheruser", I lose key forwarding, because the env variables are removed and the socket is only ...
1
vote
2answers
269 views

AWS IP Forwarding

I have an Elastic IP on AWS that I want to forward to a Public IP outside of AWS. Any ideas how I could accomplish this?
0
votes
1answer
58 views

LVS/IP_VS LoadBalancing Gateway [closed]

I'm trying to setup my 2-gateway configuration with loadbalacing with IP_VS kernel module. I need to loadbalance forwarding traffic to 2 nodes. I do: Setup ip_vs fwmark service and add 2nodes. On ...
-4
votes
2answers
48 views

Config to allow SQL Server to be connected through CloudFlare?

I have already known the risk of exposing SQL Server database on the Internet, but please look at my situation: I have two instances of SQL Server: production (default instance SQLEXPRESS) and dev (...
8
votes
1answer
856 views

Forwarding traffic from TUN device (C++ backend) to the default gateway

The following problem is just a piece of the bigger solution I have a problem with. All other elements seem working so far, so I'll try to describe very small piece which I have problem with. I've ...
1
vote
1answer
3k views

How to configure vsftpd and iptables to listen on port 21 but run on another port?

We have a Java process which contains an embedded FTP server which I'd like to run on a RHEL5 machine. I don't want to run the process as root and I don't want clients to have to specify a port when ...
1
vote
1answer
3k views

iptables forwarding through virtual interfaces

I'm trying to configure my computer as a gateway between two networks, but I cannot make it working for some reasons Here is a representation of the network: 192.168.1.101 192.168.1.102 192.168.1....
0
votes
1answer
691 views

Apache reverse proxy forwarding https header

I have successfully installed reverse proxy on Apache. It works like a charm. I'm using it to proxy https request to http. My problem is that I need to forward variable SERVER_HTTPS to my end server, ...
2
votes
1answer
100 views

HAProxy: Detect SSL connection contents and then decide to forward it or not

I would like to have a front end with HAProxy on port 443. This front end acts in the following way: It decrypts the contents of the connection and checks: 1- If the encrypted contents of the ...
1
vote
1answer
32 views

Apache forwarding to different private port

So I'm working with a fresh install of apache2 from the repos on Ubuntu 14.04.3. For unrelated reasons, the machine is already serving other things on port 80, so I want Apache to serve on a different ...
1
vote
1answer
404 views

Postfix: Get real forwarded-to address

Our system is set up such that *@our-server.com goes to reader@our-server.com. We automatically process email and it's easier/faster to connect to a single account that has all email rather than the ...
-2
votes
1answer
25 views

Cannot use browser on server PC [closed]

I have a (Delphi-Indy based) custom server running on a dedicated PC. It used to listen on port 80 but on later versions of Windows that port is already assigned, so now I use port 8080. My clients ...
0
votes
0answers
100 views

How can I forward UDP Multicast between two interfaces on Linux?

I have 3 Hosts (A,B,C), all with two network interfaces with, lets say, following ips: - A: - eth0 :192.168.0.2 - eth1: 10.0.1.1 - B: - eth0: 192.168.0.3 - eth1: 10.0.2.1 - C: - eth0: 192....
3
votes
0answers
233 views

How to reverse proxy https with lighttpd?

I want to forward (reverse proxy) requests to https://secure.mydomain.com(:443) to my internal (HTTPS-)WebServer on port 8443 using Lighttp. Environment-Infos: My WebServer is a Tomcat running on ...
0
votes
0answers
28 views

How to forward logs and offenses from solarwinds to another server

There are several solarwinds servers in my Network. I want to aggregate some important logs and status from all of these different servers in a third party log server. I'v just searched but I didn't ...
6
votes
3answers
9k views

When an email is forwarded, does it lose its original headers?

I am wondering if when an email is forward does it lose its original headers?
3
votes
1answer
150 views

How to forward traffic from tunnel interface to eth0

Network topology: Internet | | (eth0) IP: 202.xxx.xxx.xxx/255.255.255.0 A: Remote_Server(Debian) (tun0) IP: 10.10.1.1/255.255.255.0 | | (utun0) IP: 10.10.1.2/255.255....
0
votes
1answer
451 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 ...
0
votes
0answers
36 views

Apache block certain URI and URL access not matching exact condition

I have a domain vc1.domainname.com pointing to IP 1.2.3.4, port forward 8080 to 192.168.0.10 port 8080 vc2.domainname.com pointing to IP 1.2.3.4, port forward 8081 to 192.168.0.20 port 8080 I got ...
0
votes
2answers
139 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
2answers
28 views

Web server set up for load balancing and forwarding

We are working on a networked service, where all the functionality of our software is exposed via an in-house web-server. The company's clients connect to it via a browser, does their tasks, log out, ...
0
votes
0answers
23 views

Linux Iptables Nat with two gateway

I got a CentOS server in a DMZ that act as a DHCP and DNS server with the following network configuration: eth0 IP: 192.168.100.50 SN: 255.255.255.0 GW: 192.168.100.1 Now I added a seconde network ...
2
votes
1answer
340 views

Manual Multicast forwarding with Linux router

I have a Linux router (Ubuntu). It is working well with unicast but with multicast routing/forwarding I have some trouble. The problem is that my hosts do not send igmp/mld messages thus the router ...
1
vote
0answers
97 views

delay on forwarding to exchange server

Our organisation hold emails on shared hosting. But some of them are forwarded to another provider to exchange server. For some reason we start getting delay on emails forwarded to exchange server. I ...
2
votes
1answer
151 views

How to do parallel queries to the upstream DNS using Unbound?

Can I configure Unbound as forwarder but that it alway send a query to ALL upstream DNS servers that I configure and take as valid reply the first in arrive? Such feature exist in nsmasq pfSense: ...
0
votes
0answers
28 views

Linux forwarding packets to remote destinations (not localy)

Network case: Source--Routers ... eth0=LINUX=eth1 ---- some routers.. -- Destination 2.2.2.2 10.0.0.1 192.168.0.1 1.1.1.1 and 1.1.1.0/24 via 192.168.0....
1
vote
0answers
24 views

Impossible to send events from more than one non-domain windows server (2008, 2003) to WinRM collector (windows 2012)

We have problem with non-domain servers using certificates. We created certificates (through CA), installed one on collector (with good CN), second on first source server, third on second source ...
6
votes
1answer
920 views

What is a valid destination log for Windows event forwarding

I'm running into an issue when trying to use a custom log journal for storing forwarded events (via subscription) on a Windows 2008 R2 server, the custom log being described as not being a "valid ...
1
vote
0answers
78 views

Is firewalld blocking return traffic?

I'm on Debian 7 trying to forward requests to other machines through firewalld and have the following setup: --HOSTNAME-- ----IP----- ------------Configuration------------- Firewall 192.168.0.2 ...
3
votes
3answers
97 views

Mail forwarding server [closed]

Is there any way I can "relay" mail traffic? To explain better, lets say the server that will relay the mail is 10.0.0.1, and the proper mail server containing the mail is Gmail, is there any way I ...
1
vote
0answers
156 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 ...
7
votes
2answers
29k views

How to properly configure BIND forward zone for an internal DNS server?

I have: internal DNS server ns1.internal with IP 192.168.0.4. external DNS server with an external TLD mydns.example.com and internal IP 192.168.0.5. It's accessible both from the Internet (via a ...
0
votes
0answers
92 views

CentOs 6 as Firewall, forward traffic from eth1 to eth0 -> destination host prohibited

I'm setting up Firewall with a CentOs 6.0 for testing. I'm doing this on two virtualmachines. First VM (Firewall) has 2 interface: eth0 - connected to NAT with 10.0.2.10, access to internet eth1 - ...
1
vote
2answers
154 views

How to merge usb0 and usb1 interfaces into one network?

I have a set-up with three devices, all running Ubuntu 14.04. The set up looks as follows: What I would like to have is a configuration in which both devices can connect to the internet but can ...
3
votes
1answer
57 views

Forward Nagios server state to a second server

Is there a way to forward the state of a Nagios server to a second Nagios server? I want to install a Nagios server which does the usual collecting of information about the machines and services on ...
0
votes
1answer
25 views

forwarding connections from firewalled local machine to firewalled remote machine

I need to forward internet traffic from a local machine to a remote machine, routing traffic through an intermediary SSH server on the way. The remote machine is firewalled and running a SOCKS5 proxy ...