Compiling OpenSSH

Thanks for that...that got me through compiling! I've now run into another snag...it seems there is some problem with ssh-agent usage when recompiling OpenSSH from source. The following is a debug output with SSH AUTHSOCK set to the default (/tmp/launch-hdTE8H/Listeners in this case)


sh-3.2# ssh -vl user and IP redacted
OpenSSH_5.6p1, OpenSSL 0.9.8l 5 Nov 2009
debug1: Reading configuration data /usr/etc/ssh_config
debug1: Connecting to x.x.x.x [x.x.x.x] port 22.
debug1: Connection established.
debug1: permanently setuid: 0/0
debug1: identity file /var/root/.ssh/id_rsa type -1
debug1: identity file /var/root/.ssh/id_rsa-cert type -1
debug1: identity file /var/root/.ssh/id_dsa type -1
debug1: identity file /var/root/.ssh/id_dsa-cert type -1
debug1: Remote protocol version 1.99, remote software version Cisco-1.25
debug1: no match: Cisco-1.25
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.6
debug1: SSH2 MSGKEXINIT sent
debug1: SSH2 MSGKEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: sending SSH2 MSG_KEXDHINIT
debug1: expecting SSH2 MSG_KEXDHREPLY
debug1: Host 'x.x.x.x' is known and matches the RSA host key.
debug1: Found key in /var/root/.ssh/known_hosts:1
debug1: ssh rsaverify: signature correct
debug1: SSH2 MSGNEWKEYS sent
debug1: expecting SSH2 MSGNEWKEYS
debug1: SSH2 MSGNEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2 MSG_SERVICEREQUEST sent
debug1: SSH2 MSG_SERVICEACCEPT received

The connection hangs here until terminated. By changing $SSH AUTHSOCK to 0, the connection goes through without a hitch. I have tried the following things:

- Building completely from the source downloaded at opensource.apple.com (configure - make- make install)
- Building completely from the source of the most recent code version from OpenSSH directly
- Running make - make install on the main directory from opensource.apple.com (There is a Makefile already in place)

All three of these methods end up in the same problem - connection hangs unless you force $SSH AUTHSOCK to 0.

Any advice is most appreciated. 🙂

No; I do not have sshd running on the system.

Right, from what I understand, it should be started by launchd when required. This does not seem to be happening:


localhost:~ twmjr$ ps -A | grep ssh
80444 ttys000 0:00.01 ssh -vl [USERNAME] [IP ADDRESS]

ssh-agent doesn't seem to start at all. this output is from while my session is hanging at the point indicated earlier. another thing to note is that ssh-add simply hangs when run...