NAME¶
lurker-prune — prunes the web-server cache
SYNOPSIS¶
lurker-prune [-c <config-file>] [-f <frontend>] [-m
<days>] [-a <days>] [-p -v]
DESCRIPTION¶
lurker-prune prunes obsolete or stale files from the web-server
accessible cache. This command must be run at regular intervals from eg. a
cronjob. If it is not run, then the lurker web interface will appear to not be
receiving new mail or have contradictory links between pages. A good interval
is every 15 minutes and should not exceed one hour.
Be aware that it is possible for an attacker to use up a large amount of disk
space through lurker. An attacker could request many distinct lurker web pages
each of which is cached, thus using disk space. Please setup a quota for the
lurker user, read your logs, and follow whatever site-specific policies you
have for denial of service.
A good script to run in parallel with normal lurker-prune use is one similar to:
if test `du -s /var/www/lurker | cut -f1` -gt 32768; then lurker-prune -p; fi
This might help guard against a potential denial-of-service attack.
OPTIONS¶
- -c config-file
- Use this config file for lurker settings.
- -f frontend
- The directory of the lurker frontend cache to clean. You
can selectively purge cache with this option. By default, lurker-prune
will clean all frontends specified in the config file.
- -m days
- Keep cached files for at most this many days. Any cached
file regardless of last access will be deleted after the specified number
of days (defaults to 7). Files which are obsolete due to new mail, config
changes, or no accesses will be deleted earlier. Deleted files will be
automagically regenerated if needed.
- -a days
- Kill cache files not accessed for this many days. Any
cached file which has not been read from for the specified number of days
(defaults to 1) will be deleted. Files which are obsolete due to new mail
or config changes will be deleted earlier. Deleted files will be
automagically regenerated if needed.
- -p
- Purge mode. Delete all cache files even if they do not
appear to be expired. This will only deletes files that are generated by
lurker, and is thus preferable to rm */*.
- -v
- Verbose operation. Indicate which files are being deleted
and the reasoning behind lurker's decisions. This can help in tracking
down why some files are deleted and not others.
SEE ALSO¶
lurker-index(1),
lurker-params(1),
lurker-list(1)
lurker documentation on
http://lurker.sourceforge.net/
COPYRIGHT¶
Copyright (C) 2002: Wesley W. Terpstra <terpstra@users.sourceforge.net>
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; version 2.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA.
BUGS¶
Before reporting a bug, please confirm that the bug you found is still present
in the latest official release. If the problem persists, then send mail with
instructions describing how to reproduce the bug to
<lurker-users@lists.sourceforge.net>.
