Enable debugging for ssh in Solaris

This consists of two steps:

1) Modify the sshd configuration file
2) Add the facility to /etc/syslog.conf


To complete the first step, edit the file /etc/ssh/sshd_config and replace the line

# Syslog facility and level
LogLevel info

with the debug level that you desire (debug1, debug2, debug3) 

# Syslog facility and level

LogLevel debug3 

Re-read the sshd config file
ps -ae|grep sshd
kill -hup <process id>

For step two, edit /etc/syslog.conf and add the following facility

auth.debug                                      /var/log/authdebug

Note: be careful copying this line (the file needs its indentation, check it with set list in vi editor auth.debug^I^I^I^I^I/var/log/authdebug)

You will need to create the file /var/log/authdebug it it does not exist

On Solaris 5.8 and 5.9, enter
/etc/init.d/syslog stop
/etc/init.d/syslog start

On Solaris 5.10, at the command prompt, enter 

svcadm disable svc:/system/system-log
svcadm enable svc:/system/system-log

When you are done, remember to modify the file /etc/syslog.conf to its original state, and disable/enables syslog, so it will stop logging to /var/log/authdebug.