On 12/11/2013 02:09, Darren Tucker wrote: > That's a modified ssh server. Can you reproduce the problem with a > stock openssh from openssh.com? The modification is minor, to port for FreeBSD. It did work with this modification on the same system. > > You might get some more clues if you run the server in debug mode > (/path/to/sshd -ddde). Unfortunately, this didn't give any new clues. No new debug messages around the failure. I also looked at the server system call trace, and the first major difference is that in successful case one read(2) call returns 16 bytes, and in failed case it returns 0 bytes, which means disconnect. What are the possible client failure points between the server events 'expecting SSH2_MSG_NEWKEYS' and 'SSH2_MSG_NEWKEYS received'? Yuri
