1

I am new using Linux, so I would really appreciate a simple as possible answer.

I cannot ping between two computers, neither to nor from. I can ssh from one computer to another, but not the other way around.

I would be very grateful if I can get some direction as to what I might have to do in order to fix this.

The computer to which I cannot connect is Ubuntu 10.4 with wireless Internet (but I can connect to other from it), while the other one is a Mac OS.

Thanks a lot in advance.

3
  • 1
    Can you use the 'edit' link to add a short description of how each computer is connected to the internet (e.g., wireless router, etc)
    – Huckle
    Feb 21, 2012 at 2:27
  • 2
    Please provide more info on your situation. What OS's are you running on each machine? Are you connected through wireless or do you have a wired connection or both? Are you machines connected through a router, access point, switch? Feb 21, 2012 at 2:50
  • From one computer, run traceroute -n 192.0.2.34 where 192.0.2.34 is the IP address of the other computer. This will reveal your IP address. If that really bothers you, consistently munge the numbers, leaving anything that begins with 192.168. or 172.16. or 10. alone (they're private addresses). Feb 21, 2012 at 22:32

1 Answer 1

1

If you want to use ssh in both ways, you have to install the package openssh-server on both computers, to handle incoming ssh requests. This can be installed via the Ubuntu Software Center or using the command line:

sudo apt-get install openssh-server
4
  • Thank you very much. I installed it, but I still can't ssh. I get the following message: ssh: connect to host 192.168.0.194 port 22: Operation timed out
    – user47305
    Feb 21, 2012 at 2:04
  • check the firewall in the one u cant do the ssh: and check if the service is runing service ssh status / start
    – maniat1k
    Feb 21, 2012 at 2:37
  • Ok, I disabled my firewall, and when checking if my service is running I got status: Env must be KEY=VALUE pairs. I'm trying to figure out what that means...
    – user47305
    Feb 21, 2012 at 3:19
  • 1
    plz update ur question , about pinging
    – One Zero
    Feb 21, 2012 at 3:46

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .