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Special Forums Cybersecurity Failed SSHD Login Attempts (15,000 per day) - Is that a lot compared to your server? Post 303039226 by Corona688 on Thursday 26th of September 2019 11:34:10 AM
Old 09-26-2019
Difficult to follow precisely without lastb, but grepping 'authentication failure' in log files, one of my servers has 66,000 failed logins since Sep 22, which is awfully close to your 15,000 a day. Another's log files are too short to be useful for this...
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strclean(1M)															      strclean(1M)

NAME
strclean - remove outdated STREAMS error log files SYNOPSIS
logdir] age] DESCRIPTION
cleans the STREAMS error logger directory of log files mm-dd) that contain error messages sent by the STREAMS log driver, strlog(7). If the option is not used to specify another directory, removes error log files in the directory. If the option is not used to specify another age, removes error log files that have not been modified in three days. Options recognizes the following options and command-line arguments: Specifies a directory for the location of the STREAMS error log files to be removed if this is not the default directory Specifies a maximum age in days for the STREAMS error log files if this not the default age of 3. The value of age must be an integer greater than or less than 3. EXAMPLES
Remove day-old error log files from a directory called FILES
One or more error log file or files on which operates. The mm-dd in the filename indicates the month and day of the messages con- tained in the file. NLS catalog for SEE ALSO
strerr(1M), strlog(7). strclean(1M)
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