ssh reseting

[mwagz]

ssh user@hostname

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@


@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
b2:11:94:bf:7d:c5:58:59:54:f4:e9:e8:c7:c7:0e:63.
Please contact your system administrator.
Add correct host key in /home/safaricom/.ssh/known_hosts to get rid of this message.
Offending key in /home/safaricom/.ssh/known_hosts:1
RSA host key for ppgp2 has changed and you have requested strict checking.
Host key verification failed.


I just restarted my server.
How do i resolve this?

[joshaven]

It looks like the ssh key on the remote machine has changed from the last time you connected before the error.

You can either empty the content of following file or remove the line that is associated to that host.

/home/safaricom/.ssh/known_hosts

[mwagz]

It looks like the ssh key on the remote machine has changed from the last time you connected before the error.

You can either empty the content of following file or remove the line that is associated to that host.

/home/safaricom/.ssh/known_hosts

I have been doing that every time I need to connect to the host....and every application that involves connecting to another host is always disconnected...
I don't think i can do keep doing this all the time....How do i resolve this once and for all???

[joshaven]

At this point I am guessing...

Try removing and reinstalling openssh-client & keychain

sudo apt-get remove openssh-client keychain

#then delete your known hosts file one last time
rm ~/.ssh/known_hosts
# if you have trouble locating your known_hosts file or want to delet the
# file under all profiles you can use this command to locate it:
# locate known_hosts

#Now reinstall openssh client and keychain
# Keychain is an OpenSSH key manager
sudo apt-get install openssh-client keychain

Good luck and feel free to let me know the outcome, I will help more if I can.

[anomie]

mwagz, something is seriously messed up (assuming you aren't rebuilding your sshd server constantly).

Pay attention to these lines:

The fingerprint for the RSA key sent by the remote host is
b2:11:94:bf:7d:c5:58:59:54:f4:e9:e8:c7:c7:0e:63.

Is the fingerprint exactly the same every time you see that message? Or does it change each time?

[mwagz]

After some time I get " Connection reset by peer"....
Is this related to ssh server?

[anomie]

mwagz, you lost me. This sounds like a different problem.

Did you try any of the suggestions in the thread thus far? What happened when you tried them? Can I get an answer to the questions from my last post?

[mwagz]

I have tried all suggestions given....It seems my situation is worse...

My connection resets after a short interval...and refuses connection for some 20 secs...

root@ubuntu-laptop:/home/bernard# ssh user@hostname
ssh: connect to host hostname port 22: Connection refused