Logging into a remote server

anaigini45 · 01-03-2010, 06:08 AM

I want to login to my company's server (remote) from my room. I have the server address, so I use this command to login :

Code:

#ssh root@X.X.X.X

It waits for a very long time and then returns with error connection timed out port 22.

I configured these settings in the remote server :

Code:

#/etc/init.d/iptables stop

Then I connect via ssh from my home but still the same error.

Then in the config file /etc/ssh/sshd_config, I uncomment the line :
ListenAddress 0.0.0.0

I connect via ssh again from home but still the same error.

The connection is not denied in hosts.deny and hosts.allow.

How do I get the connection up and running? Pls help...

repo · 01-03-2010, 06:09 AM

is port 22 open and forwarded to the server on the router ?

EricTRA · 01-03-2010, 06:10 AM

Hi,

Just a wild guess. Since you're referring to a company server, isn't there a firewall between the connection and the server? I'd assume yes if you set everything correctly on the remote server but still get no connection. Might be a simple firewall option on the broadband router the company uses or a dedicated one.

Kind regards,

Eric

EricTRA · 01-03-2010, 06:11 AM

Quote:

Originally Posted by repo

is port 22 open and forwarded to the server on the router ?

Darn repo, you beat me to that one. Just thought of it when submitting my post.

Kind regards,

Eric

anaigini45 · 01-03-2010, 06:42 AM

This is what I get from my computer when I type nmap :

[root@localhost aigini]# nmap localhost

Code:

Starting Nmap 5.00 ( http://nmap.org ) at 2010-01-03 20:42 CST
Interesting ports on localhost (127.0.0.1):
Not shown: 995 closed ports
PORT     STATE SERVICE
111/tcp  open  rpcbind
139/tcp  open  netbios-ssn
445/tcp  open  microsoft-ds
631/tcp  open  ipp
7741/tcp open  unknown

Nmap done: 1 IP address (1 host up) scanned in 0.14 seconds

How do I open port 22 here in my computer ?(I am assuming this is where the port should be open)

But when I connect (via ssh) to my company's cloud server(another address), it is successful without any configuration needed in my computer.

So does this mean that I have to open port 22 in the company's firewall on the broadband/dedicated router?

How do I do so?

repo · 01-03-2010, 06:56 AM

Quote:

So does this mean that I have to open port 22 in the company's firewall on the broadband/dedicated router?

yes
you need to forward port 22 to your server

Quote:

How do I open port 22 here in my computer ?(I am assuming this is where the port should be open)

port 22 doesn't has to be open on your computer, unless you want to connect from the outside to your computer using ssh