#port-forwarding

How-to: No idea what is listening on port 80 in OS X #programming #computers #fix

No idea what is listening on port 80 in OS X

I’m on OSX Mountain Lion 10.8.3, and I’ve freshly rebooted my Mac.

I want to start a service (like Apache on port 80), but there is already something going on with port 80:

telnet localhost 80 Trying ::1... Connected to localhost. Escape character is '^]'.

Wait, I hear you say, you can find that with lsof or netstat. Except there is nothing there

net…

Fixed: How do I remove an SSH forwarded port #development #computers #dev

How do I remove an SSH forwarded port

I used ssh -L 10002:192.168.0.30:10002 192.168.1.135 to establish port forwarding but now I need to remove it.

How do I do this?

Answer [by zpon]: How do I remove an SSH forwarded port

If you are using Linux you can kill the process by:

ps aux | grep ssh

and then use

kill <id>

To kill the process.

If the kill command is not successfull you can try

kill -9

Solution: Howto disable SSH local port forwarding? #development #dev #it

Howto disable SSH local port forwarding?

I have a server running Ubuntu and the OpenSSH daemon. Let’s call it S1.

I use this server from client machines (let’s call one of them C1) to do an SSH reverse tunnel by using remote port forwarding, eg :

ssh -R 1234:localhost:23 login@S1

On S1, I use the default sshd_config file. From what I can see, anyone having the right credentials {login,pwd} on…

Solution: DD-WRT: How to allow port forwarding to apply to requests originating from inside the LAN? #it #dev #fix

DD-WRT: How to allow port forwarding to apply to requests originating from inside the LAN?

With the original firmware of my router I had port forwarding defined from port 80 to the server in the LAN, which I used in conjunction with an external dynamic DNS service.

I’ve now upgraded to DD-WRT and alas the port forwarding only works for requests to the external IP from outsidethe LAN. From inside…

Answer: Forward port to another Ip/port #development #it #dev

Forward port to another Ip/port

I recently found out that my ISP disables port 135. I have a server and personal computer behind my router. A friend and I are working on a programming project and are running into some sql issues because of this blocked port. For him to be able to access everything, I have dynadns configured

Personal Computer: 192.168.1.100 Server Computer: 192.168.1.110

Is there…

Answer: Can I use ufw to setup a port forward? #dev #solution #answer

Can I use ufw to setup a port forward?

Im currently using ufw to enforce some basic firewall rules. Is it possible to also use ufw to do port forwarding?

Specifically im wanting to forward incoming traffic to my server (same machine running ufw) on port 80 to port 8080. (http traffic forwarded to tomcat)

Th

Answer [by ooshro]: Can I use ufw to setup a port forward?

Add before filter section in…