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1answer
133 views

Redirecting port A -> B and blocking externally B

I want to redirect port A to port B and EXTERNALLY block port B. A = 9922 B = 22 (Yes, it's ssh, and NO I cannot change it in configuration.) I have three interfaces: lo (loopback) p36p1 ...
0
votes
1answer
85 views

Postfix email alias forwarding

Currently I have installed, and configured postfix. If I send a email to let's say 'admin@XYZ.com' I receive the email(s) locally on the server. I would like to get these said emails to 'XYZ' to ...
-1
votes
1answer
156 views

Are SMTP headers retained when an email is forwarded or replied to? [duplicate]

Let's say an email is sent from party A to B. Let's refer to the set of headers that B views as Headers 1. Party B then replies to or forwards the email to party C. Let's refer to the set of ...
1
vote
3answers
817 views

Linux routing - Access external IP from LAN

I'm using OpenWRT (linux based) on my router. The router has a local IP and a public IP. I have a dyndns name assigned to the public IP. The router is forwarding several ports (e.g. ssh and https) to ...
1
vote
1answer
928 views

Query upstream authoritative DNS for unknown host

I've got an internal bind server which works fine for my local name resolution. Most of the hosts are mapped with internal IPs instead of their corresponding external IPs. However, there are ...
1
vote
2answers
237 views

SSH Key Forwarding fails as soon as I am root

Situation I add a ssh-key to the chain using ssh-add -K the_path as user@local I set up key forwarding as described here https://help.github.com/articles/using-ssh-agent-forwarding ...
3
votes
0answers
546 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
71 views

BIND: forward 1st level zone

First of all: sorry for the language, English is not my primary language. I have star-like DNS structure with many filials (more that 2): ^ ...
0
votes
1answer
829 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 ...
2
votes
1answer
123 views

allowing forwarding on a root server, security risk?

Having a root server without iptables rules (I know this is not good, it's just temporary tho in my case), and having configuration like this (for VPN reason): echo 1 > ...
0
votes
2answers
226 views

iodine and bind on same server

I have recently setup a server running ubuntu server 12.04. I bought a domain, example.com, and have registered nameservers ns1.example.com and ns2.example.com. Both point towards my server running ...
0
votes
1answer
74 views

Two Nics, one direct connection and forwarding

I'm designing a system with a Server PC with two nics running Centos 6 and a Sensor Device which runs a web server. The Sensor Device is connected directly to one of the nics of the Server PC. All ...
-3
votes
1answer
28 views

After including DNS forwarder, not possibility to send email to the “forwarded domain”

I have a client non trusted domain, let say "domainA.com", I manage it with System Center 2012 installed in my company internal domain (let say domainB.lan). I have added forwarders in my dns to be ...
0
votes
2answers
388 views

Use lighttpd to access a website over a proxy

this is going to be my very first question. At our company we are using Squid as a proxy between our intranet and the internet. Now we have the need that a software package can't handle a proxy ...
2
votes
1answer
2k views

iptables FORWARD port to internal server

I've been struggling with a FORWARD policy that isn't working the way I'd like, and I can't figure out what is causing the session to fail. I hope someone can help. My goal is to forward port 3000 ...
0
votes
1answer
61 views

How to forward emails from a domain to 2 different servers?

I am not sure the title describes my problem properly, so let me explain. I have a domain called example.com. I have currently set it up for email services from Microsoft Live domains. I have done ...
-1
votes
1answer
94 views

Copy Admin on All Emails To/From Specific Outside Email Address [Google Apps (GAM API)]

We use a fax-through-email service and I would like to keep track of our employees' usage of it. We use Google Apps for Business and I have installed/configured GAM API for the more advanced ...
0
votes
1answer
401 views

How can I configure Postfix to ignore relayhost when forwarding mail?

How can I configure Postfix to ignore relayhost when forwarding mail? I currently use the relayhost to send all outgoing email via an external SMTP service : # /etc/postfix/main.cf relayhost = ...
0
votes
1answer
304 views

redirect traffic from 2 Ubuntu external NICs to specific internal hosts

I am having problems redirecting incoming traffic to 2 external facing interfaces on my Ubuntu 12.10 server to 2 separate internal hosts. I am able to redirect incoming traffic on my eth0 just fine to ...
0
votes
1answer
82 views

Whats wrong with my iptables?

Problem I cannot get requests to my server on port 80 to redirect to my client on port 8080 Server I am using a CentOS 6.3 VM as the server, the client is an Arduino Server eth0 - 172.16.145.139 ...
1
vote
2answers
583 views

nginx: redirecting only 'www' subdomain to main domain?

Update: April 20th 2013, Still no solution found, please help Looking at my nginx config, the only like that could be the culprit is this: server { listen 80; listen [::]:80 ...
2
votes
3answers
8k views

Difference between routing and forwarding table

What is the difference between forwarding and routing tables?
0
votes
1answer
423 views

How to configure iptables rules for connecting 2 eth to the net (forwarding & masquerading)

need some help on configuring iptables rule for forwarding and masquerading Given I have these configuration: switch1 ---- (eth1) ----- router ---- (eth2) ----- switch2 ...
0
votes
1answer
1k views

preventing “invalid security certificate” (ssl_error_bad_cert_domain) when using a subdomain forwarded to a dynamic dns domain name

I've been looking around in Google and so far have not found a page that addresses my situation, which is weird because I'm sure it's been attempted thousands, if not millions, of times before. I ...
0
votes
2answers
206 views

Apache2 mixing forward and reverse proxy

I upgraded apache2, which behaves different now. I want to mix a forward proxy, only accessable from the intranet and a reverse proxy which should be accessable from the internet. What happens is ...
0
votes
2answers
275 views

Accessing website from two ports - Apache config

I have a website setup and want to be able to access the same site from two different ports. Does anybody know how I would do this? For example, I want to be able to access exactly the same at ...
1
vote
1answer
85 views

Junos Routes - Route Specificity vs Protocol

I am trying to load balance a router to send traffic over two uplinks (with equal capacity). I generated static routes for every /8 on the internet (for ipv4) and plugged it in. Unfortunately it does ...
0
votes
0answers
99 views

Multiple Ports Forwards, Most Working, but Not All?

So I have this ASA5505 setup and pretty much everything works, except a couple key port forwards. Can anybody spot ANY reason why SOME port forwarding would not work? Specifically I know the 50000 ...
0
votes
2answers
117 views

IP:PORT redirection software?

i'm looking for a way to redirect traffic to an other ip on a certain port. Been able to do this with iptables on linux and netsh on windows but in both cases the client gets the ip address of the ...
0
votes
3answers
322 views

iptables FORWARD 80 to 8080, no direct access on 8080

iptables -A INPUT -p tcp -m multiport --dports 80,443,8080,8181 -m state --state NEW -m limit --limit 50/minute --limit-burst 200 -j ACCEPT iptables -A INPUT -p tcp -m multiport --dports ...
0
votes
2answers
221 views

Forward all email to another user in Exchange 2010

I am trying to forward emails for a user who has left our organisation to another user, but I cannot find how to do it. We have recently upgraded to Exchange 2010 (from 2003), which now runs on a ...
1
vote
1answer
507 views

Server 2012 DNS forwarding - core.company.com

Folks: I'm moving from an old SBS2003 network to Server 2012, and thought I'd take the opportunity to have a spring clean by creating an entirely new AD. My old domain was mycompany.local, however it ...
1
vote
0answers
84 views

forward a specific port from linux server (ubuntu) through firewall server (ubuntu)

I'm doing the following: % autossh -i YYY.pem XXX@SERVER -N -R 90:localhost:9000 -o ServerAliveInterval=30 to forward a server port from the local machine to the public machine. But connections ...
2
votes
1answer
539 views

Can't connect to instance via floating IPs, not natting/forwarding properly

I'm having trouble getting floating IPs to work properly on my OpenStack setup. It looks like the controller node (running nova-network) isn't forwarding the traffic to the instances. I've got a ...
0
votes
1answer
218 views

bind forward different domain to different ns

Recently I've started a bind9 NS host for the internal network of my school, providing a "CLEAN" NS Server. I want to forward almost all traffic to NS provided by ISP, but forward a few other domains ...
1
vote
0answers
126 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
619 views

iptables forwarding port to internal IP

I'm using OpenVPN on a VPS which I want to forward incoming port 7999 from the external IP 198.23.248.150 to the internal IP 10.1.10.2 using iptables. I cannot seem to get the syntax correct and I ...
2
votes
1answer
464 views

can't find a way to forward in iptables for specific mac address

I use a linux Centos 6.3 as an Internet gateway with NAT. I want to allow a specific host to have access to Internet, but I don't want to use its IP address since it may get a new IP address from the ...
0
votes
1answer
538 views

Reverse proxy for SSH/HTTPS on same port (443) [closed]

I have an unusual problem. My home server environment has only one static IP. It has a web server that I would like to serve HTTP and HTTPS. However, most of the external networks I connect to it from ...
0
votes
1answer
267 views

Running an email server on a VPN client, wanting traffic passed through for smtp, pop3,imap etc from vpn server.

I have a home broadband network which I also run an email server. As my provider won't give me a fixed ip address, and most servers refuse to accept smtp mail from dynamic ip ranges, I felt the simple ...
0
votes
1answer
416 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, ...
-1
votes
1answer
1k views

How to redirect http request to a different URL with nginx?

I need to redirect following URL: http://www.example.com/product/product-name/1234 to http://www.example.com/details/product.jsp?pid=1234 Can somebody help me on this? We are using nginx 1.1.19. ...
0
votes
2answers
49 views

Domain that redirect to a port

I've got two domains that are connected to one server (same IP). I want to domain1.example.com redirect to 1.2.3.4:12345 and domain2.example.com redirect to 1.2.3.4:12346. How can I do that? I can't ...
1
vote
1answer
202 views

Make device accessible outside firewall with OpenVPN

I have an OpenVPN server and a few clients already configured. The server allocates IP addresses in the 10.9.9.1-254 range. One of these clients, "J", is allocated 10.9.9.24 on the VPN and 10.0.27.9 ...
2
votes
2answers
3k views

How to test DNS Forwarders without disconnecting the Primary DNS Server?

I have two domain controllers in my domain in remote offices (Europe and China) and two domain controllers in the US, 4 in total. We had a network outage in our US office a few weeks back and during ...
0
votes
1answer
2k views

Forward mails based on sender email address and subject directly on Exchange 2007

I go the task to forward mails directly on the Exchange 2007 Server. The emails come from an external sender (is always the same) and depending on the subject the emails should be forwarded to two ...
1
vote
1answer
2k views

how to solve the error: “ssh_exchange_identification: connection closed by remote host”

I have been researching for hours and still unable to solve my problem. This error "ssh_exchange_identification: Connection closed by remote host" has many proposed solutions but none seem to solve ...
0
votes
2answers
2k views

How to forward a TCP/UDP broadcast to another VLAN on a Cisco switch?

I have client software which sends out a broadcast on some TCP and UDP port numbers. The broadcast it sends out is designed to look for the server. But the server is sitting on another VLAN so the ...
0
votes
1answer
2k views

How to route/forward/connect incoming SIP call through other SIP provider to a phone number?

I have 2 VOIP SIP accounts. One is for a landline (incoming). The other should be purely outgoing and allows for calls to my mobile phone. Basically I want to connect the landline to my mobile phone. ...
2
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0answers
248 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 ...