Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
I change my computers a lot, reinstalling and trying new distros. I keep an Intel P4 box in the basement with the left cover panel off, with 4x 80 GB IDE HDs exposed. I simply switch the IDE cable to a different HD to experiment with another distro. The router keeps the same 22.214.171.124 number for the comp, regardless of which HD is used. But, the ssh function is always lost after I switch distros:
rmack@recruit:~$ ssh 192.168.1.106
ssh: connect to host 192.168.1.106 port 22: Connection refused
I think one of these files has to be refreshed or edited because I switched linux distros within the same box, and I guess new keys were generated. What do I do to initialize ssh, without removing ssh and .ssh and reinstalling ssh?
rmack@recruit:~$ ls .ssh
authorized_keys id_dsa id_dsa.pub identity identity.pub known_hosts
looks uch more like you simply haven't got sshd running in the first place. your error message is symptomatic of a tcp level issue. which is well well before anything application specific is relevant.
Gosh, how can that be? The command returns an ssh error message. "man ssh" returns the help file. it sure *seems* that ssh is installed. I have an .ssh directory with configuration files that wouldn't exist if I didn't have ssh installed.
The ssh daemon needs to be running to accept connections. The main cause however is that when you install a different distro, your public and private keys will be changed and won't match a remote computers known_hosts entry for your computer. If you delete the old entry you probably will be able to reconnect.
I'm referring to the known_hosts on the windows machine or other machine from which you are trying to make the ssh connection. Putty's or cygwin's ssh client will either have a known_hosts file or an equivalent.
Last edited by jschiwal; 02-16-2008 at 07:07 PM.
Reason: fixed up a couple of phrases.
The .ssh directory and response for 'man ssh' means only that the client side is installed. The server side config is usually in /etc/ssh. Look for a file called sshd_config. And, of course, read the man pages:
Also, check to see if it is running. Just because it is installed doesn't mean it is running. Check the running processes for the sshd daemon:
ps -deaf | grep sshd
Last edited by acid_kewpie; 02-26-2008 at 02:22 PM.
This was my problem as well. Being a linux noob, I installed a new copy of the the latest debian net install (below), but couldn't get ssh to connect from inside or outside the machine. Guessing, I thought it was some kind of port binding or firewall blocking me when it was simply not having openssh-server installed.
"apt-get install openssh-server" did the trick.
Linux carbuncle 2.6.18-6-486 #1 Sun Feb 10 22:06:33 UTC 2008 i686