Telnetting

Boggy B · 01-04-2005, 11:01 PM

Hey guys, good to be here. I'm a mere tinkerer in Linux but i'll be happy to help out where i can, today though, i'm leeching some info. I searched this, and a few other forums, but all the solutions were either not realated or didn't work.

Anyway. I'm taking my personal computer to work to get some stuff installed over the nice internet connection there. However, i'd rather connect to it remotely, simply because there is too much stuff on my desk already.
Besides, it'll be a handy thing to know.

I'm aware of the security issues with telnet, and I looked up stuff about SSH, but it looks harder, and not worth the effort to get a remote connection going for only a day or two. Anyway, telnetting to a local address can't be that bad, besides there isn't exactly much anyone can do with my computer anyway.

Anyway, i just need it to accept connections from this PC. This is using Fedora Core 3, and Windows 2000; The one i'm connecting to is using Ubuntu.

Thanks a Bundle.

trickykid · 01-05-2005, 12:26 AM

ssh should probably already be configured or installed on your machine, its just a matter of you having it startup, start it up and ssh'ing into the machine, etc.

But yeah, ssh is worth it, telnet is bad, very bad and just as hard to configure than ssh is..

Boggy B · 01-05-2005, 12:31 AM

Yeah, SSH and telnet are both installed, it just won't accept connections. Where can i add an exception to the list of denied IP's? (Which i imagine is all of them, at the moment.) Or change whatever is stopping it from connecting. The specific message is

Code:

[root@Ararat jesseb]# telnet 192.168.1.215
Trying 192.168.1.215...
telnet: connect to address 192.168.1.215: Connection refused
telnet: Unable to connect to remote host: Connection refused

And SSH does...

Code:

[jesseb@Ararat ~]$ ssh 192.168.1.215
ssh: connect to host 192.168.1.215 port 22: Connection refused

So i'm pretty sure it's just a matter of allowing local IP's addresses access.
I just don't know how to do that.

trickykid · 01-05-2005, 12:36 AM

Well I know telnet doesn't start by default in any distro any longer..

First find out if sshd is running:

ps -aux | grep sshd

If you see it running, then it is a firewall setup that might be blocking it. If not, it most likely needs to be started as root:

/sbin/service sshd start

Boggy B · 01-05-2005, 12:55 AM

Code:

root@boggyb:/ # /sbin/service sshd start
bash: /sbin/service: No such file or directory

However the regular ssh commands are there, so i'm sure it's installed. Where else could it be though?

trickykid · 01-05-2005, 01:06 AM

Quote:

Originally posted by Boggy B

Code:

root@boggyb:/ # /sbin/service sshd start bash: /sbin/service: No such file or directory

However the regular ssh commands are there, so i'm sure it's installed. Where else could it be though?

Do you see sshd listed anywhere in /etc/init.d/ ?

What about doing a: rpm -qa | grep openssh

Boggy B · 01-05-2005, 01:18 AM

Quote:

Do you see sshd listed anywhere in /etc/init.d/ ?

Nope.

Quote:

What about doing a: rpm -qa | grep openssh

I'm using Ubuntu on this PC, and i don't have Alien. Grep seems to hang the command line, no matter what i put in. It was still going after 10 minutes, so i Ctrl-C'd it.

daihard · 01-05-2005, 01:48 AM

I would suggest that you run "chkconfig" to see if sshd is running.

Code:

$ chkconfig --list sshd

It should come back with the result like this:

Code:

sshd   0:off  1:off  2:on  3:on  4:on  5:on  6:off

The numbers are runlevels; this means the sshd service is configured to start automatically on runlevels 2 thru 5.

sshd is under /etc/init.d on my system, but mine's Red Hat based and Ubuntu is Debian-based, so it may very well have the sshd daemon on a different location.

The list of allowed/denied hosts are kept under /etc/hosts.allowed and /etc/hosts.denied on my system.