This problem has been driving me crazy (in the words or Marty Feldman, "Too late!")
all week.
I have two SLES8 Linux servers running under z/VM 4.3, LINUXA and LINUXB. I cannot do
a SSH connection from LINUXA to LINUXB.
linuxa:~ # ssh linuxb
1714: Connection closed by UNKNOWN
1. There is nothing in the /var/log/message file about this.
2. Both are running SLES8.
3. Both are set up to use ssh protocol 2.
4. Both servers have the other server set up correctly in /etc/hosts and
/etc/hosts.allow
5. This used to work!
6. I can successfully "telnet linuxb" and "ftp linuxb", so communications are
working.
7. I can successfully "ssh linuxc" where linuxc is functionally identical to
linuxb.
8. All the rpc PIDs and sshd appear to be working.
9. known_hosts and authorized_keys2 appear to be set up properly.
What the heck does "Connection closed by UNKNOWN" mean? Where am I going wrong?
Use the Best! Linux for Servers
Macintosh for Graphics
Palm for Mobility
Windows for Solitaire.
Gordon W. Wolfe, Ph.D. VM & Linux Systems Support
Enterprise Servers, The Boeing Company (425)865-5940
