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Linux routing by requested name

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http://serverfault.com – I've asked this on another SE site, but I don't think I was clear enough. So, I will try it here. As an example - I have 2 domains (acme.com, ajax.com). Both resolve to my single static IP. Meanwhile, my router routes all port 22 traffic (SSH) to a Linux server (192.168.1.21). What I would like to do (if this is possible) is to make acme.com THE url for SSH. I realize all of the traffic is routed to .21 (the router doesn't know about names), but is there some way to instruct Linux to reject port 22 requests when the name requested is ajax.com? In other words, is there any way to ask Linux to s (HowTos)

xskl's picture
Submitted by xskl on 08/02/2012 – Made popular on 08/02/2012

Stories similar to Linux routing by requested name

i am trying to set up policy routing on my home server. My network looks like this:

Host routed VPN gateway Internet link through VPN

192.168.0.35/24 ---> 192.168.0.5/24 ---> 192.168.0.1 DSL router 10.200.2.235/22 .... .... 10.200.0.1 VPN server

The traffic from 192.168.0.32/27 should be and is routed through VPN.

I am running a linux machine between two IP Phones with Two NIC card's.

All of the traffic passing through between eth0 and eth1 should move through TCP/IP stack.

Currently,IP-forwarding is enabled in linux and traffic routes directly at Kernel level. If I am doing port forwarding using IPtables, I can get the traffic in TCP/IP stack but I dont want to perform port forwarding.

I have two different WAN interfaces in a Linux (iptables) router. How could I achieve a situation where different traffic is routed over different interfaces, depending on the protocol (destination TCP port)? Is it even possible?

I am sharing my DSL internet connection using a modem+wireless router (single device) to 5 systems. I want all my internet traffic to go through one of the linux boxes in my network.

The problem here is that wireless devices connect directly to the modem+wireless router.

Is such routing of traffic possible??

PS: I am not sure if i could convey my situation clearly...

My ISP has blocked port 80, and I'm trying to figure out alternate ways for people to connect to my site. I've setup my webserver so it listens to port 8080, and have it forward all requests to my router from that port to my server.

Possible Duplicate: FTP reverse proxying based on hostname/domain

I have 3 servers which all have FTP on the same port. They are all at the same ip address behind the same router. The router cannot port forward based on the domain requested, only the port.

We have two Lotus Domino servers, both running latest version 8.5.3. in one of the servers we get the below messages on the server console all the time. We have no problems with mail routing, evrything is working fine, but I want to get rid of these messages from the console/log.

We have three sets of computers: clients, a single proxy and multiple servers.

The clients (many) want to connect to the servers (many) using TCP on a specific and consistent port. Currently they do this directly. The connections always originate from the clients. And everything is happy and the world is good.

However, we would like to introduce a proxy / gateway / router to the equation.

What's the most effective way to monitor SSH access in Gentoo Linux?

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