Help!! Give ssh acces on centos 5.2

xavi08 · 03-09-2009, 05:31 AM

hi all the world.
i am a beginner in linux technology.
i installed centos 5.2 on HP server.
i need to give external access to my server.so other users out of my loval network can connect to via SSH.
in my local network all is well.
but when other users (out of my local network) try to access the could not.
please show me how to give access to my serevr via ssh.

Thnaks a lot

TBC Cosmo · 03-09-2009, 06:14 AM

Quote:

If the server has inbound access from outside world use firewall rules. Otherwise to quickly do what you want:

In /etc/hosts.deny

Code:

sshd : ALL : deny

In /etc/hosts.allow given LAN of 192.168.0.0/24

Code:

sshd : \
192.168.0.0/255.255.255.0 \
: allow

Then add networks that are allowed as you need to

Disregard, misinterpreted question

acid_kewpie · 03-09-2009, 06:24 AM

that doesn't seem to address to OP... you got it the wrong way round.

What is the "outside" here? Internet? If so it sounds like you'll need a nat on your internet facing devices to route traffic for port 22 into the server, but you've provided so little information it's hard to suggest much of use.

smus · 03-09-2009, 06:29 AM

i think also firewall is up and running..

xavi08 · 03-09-2009, 06:39 AM

i have forwardee routing to teh port 22 according to teh local address of the server.
i have an active firewall with ssh checked.
i am waiting your questions and solutions .please help.

billymayday · 03-09-2009, 06:42 AM

So what happens when you try to connect via ssh?

xavi08 · 03-09-2009, 07:00 AM

when i am using pitty to connect to my server out of my local network.
i get the messsage:
network error.connection refused

TBC Cosmo · 03-09-2009, 07:11 AM

Quote:

Originally Posted by acid_kewpie

that doesn't seem to address to OP... you got it the wrong way round.

Seems you are right, missed the point of the question.

TBC Cosmo · 03-09-2009, 07:14 AM

Quote:

Originally Posted by xavi08

when i am using pitty to connect to my server out of my local network.
i get the messsage:
network error.connection refused

As mentioned above, make sure that the centos firewall is off

billymayday · 03-09-2009, 07:14 AM

Sounds like a firewall issue to me. Does /var/log/secure tell you after a failed attempt? If there's no log entry, something is stopping the connection attempt getting to the server.

Are you sure the ssh server is running? Try "netstat -nalp | grep :22". You should see "sshd" listed.

billymayday · 03-09-2009, 07:16 AM

Quote:

Originally Posted by TBC Cosmo

As mentioned above, make sure that the centos firewall is off

You are kidding aren't you? The OP needs to make sure that the firewall isn't blocking port 22, but don't tell him to shut it off.

xavi08 · 03-09-2009, 07:21 AM

thanks a lot for your replies.
when i ma typing netstat -nalp | grep :22.
i find ssh is listed and it is port is 22.
i will try to disable my firewall and see what happens.

xavi08 · 03-09-2009, 07:30 AM

i desacted my centos firewall
this gives nothing special.
please help i need to have SSH access ASAP.

TBC Cosmo · 03-09-2009, 07:50 AM

Quote:

Originally Posted by billymayday

You are kidding aren't you? The OP needs to make sure that the firewall isn't blocking port 22, but don't tell him to shut it off.

Why would you need to run the local firewall assuming that this server is in a protected network? There is virtually no information to go on and it is likely that this person will not know what to do. So in the interest of ruling out that as a problem, it should be disabled.

xavi08 · 03-09-2009, 09:19 AM

my firewall is disabled.
please what to do to get access to my server via ssh.

in my local network all is well.
while for out of my network i get message:
network error;connection refused

pleaaaaaaaaaaase help i need it ASAP.
Thanks a lot