sshd logging

[Paul Schmehl]

Is there a way to get sshd to only log successful logins? The Russians and 
Chinese are filling up the logs, which turns them over every two hours.

Paul Schmehl, Retired
As if it wasn't already obvious, my opinions
are my own and not those of my employer.
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"It is as useless to argue with those who have
renounced the use of reason as to administer
medication to the dead." Thomas Jefferson
"There are some ideas so wrong that only a very
intelligent person could believe in them." George Orwell