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- Rotation schedule
- Controls how often the log is rotated.
- Maximum size before rotating
- Sets a limit on the size of the log file before it is rotated. This field
can be used instead of the rotation schedule if you prefer a size rather
than time-based limit.
- Number of old logs to keep
- Determines how many old generations of the log file to save. These will
typically have the same name as the original log, but with .0, .1 and so
on appended. If your enter 0, no old logs will be kept and thus the
contents of the log file will be lost when it is rotated.
- Compress old log files?
- When this option is enabled, old logs will be compressed with gzip
after rotation to reduce the amount of disk space that they consume.
- Rotate even if log file is empty?
- If enabled, this option tells logrotate to still rotate the log
file even if it is empty, resulting in old copies with zero size being
saved.
- Re-create log file after rotation?
- When this option is enabled, the log file will be re-created after rotation
instead of simply being left for the server that writes to it to re-create.
By default it will be created with the original permissions and owner, but
you can use the fields next to the Yes option to specify alternate
file permissions, user and group.
- Store old rotated logs in
- When this field is set to Same directory as log file, the old
rotated copies of the log file will be stored in the same directory as
the original log. The Directory option can be used to specify an
alternate location - however, it must be on the same filesystem as the
log file.
- Commands to run after rotation
- When this text box is filled in, the entered shell commands will be run
after the log has been rotated. Many servers need to be re-started after
their log has been renamed, so that they will write to the new file
properly. In this case, you might enter a command like killall -HUP
httpd to trigger a re-start after rotation.
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