I was wondering if anyone could help me out here, we have "random" users that from time to time report their SSH connection to our main server which is AIX 5.3 (OpenSSH 4.3) using SSH2 slows down to the point where it is no longer usable (screen refresh), and they have to terminate their connection and log back in.
The same users in the office work fine, just randomly happens to random users...
Anyone experienced such a thing before on AIX or OpenSSH? Anything I should look for when diagnosing such an issue?
We are able to vision onto the logged in user, and see exactly what they see on their terminal, and when they move through their menus it updates right away on our end (knowing the server system's responsiveness is good) but the end-user's screen, it takes at least 20-30 seconds.
There is no network loss, and network speeds are good.
Also, attached is a LOG of the SSH Client's log, I also had Wireshark running in the background and can attach those logs as well.
Thanks for your help.
Log from the SSH Client the user is using:
Initiating SSH session at Tue Jul 07 14:45:09 2009
Attempting login as user davsm, protocol 2
Remote protocol version 2.0,remote software version OpenSSH_4.3
match: OpenSSH_4.3 pat OpenSSH*
Remote is NON-HPN aware
datafellows = 2000000
Local version string SSH-2.0-SecureNetTerm-3.1
kex: server->client aes256-cbc hmac-sha1 none
kex: client->server aes256-cbc hmac-sha1 none
Selected Kex Method = diffie-hellman-group-exchange-sha1
hostkeyalg = ssh-dss
Host '172.16.4.14' is known and matches the DSA host key.
Found key in C:\Users\Davsm\AppData\Roaming\InterSoft Common\known_hosts:2
verify_host_key_callback, host accepted
ssh_kex2 complete, hostOK=1
authentications that can continue: publickey,gssapi-with-mic,password,keyboard-interactive
next auth method to try is password
ssh-userauth2 successful: method password
channel 0: rfd=-1, wfd=-1, new [client-session]
Entering interactive session.
NetWatchProc is running
Starting client_init_dispatch, compat20 = 1
client_init id 0
client session id: id 0
channel 0: open confirm rwindow 0 rmax 32768
Adjusting channel 0 by 131072, new = 131072