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* * * Release notes for Xymon 4.3.20 * * *
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This documents the important changes between Xymon releases, i.e.
changes you should be aware of when upgrading.
For a full list of changes and enhancements, please see the
Changes file.
Note: There was a typo in an earlier copy of the release notes. The proper tag
in hosts.cfg is "pulldata=IP:PORT", not "pullclient"
Changes for 4.3.20
==================
Remote summaries display had been broken for a while but should now be working
again. Summaries are now also displayed on the nongreen.html page
The "Actual Used" memory figure on recent Linux kernels is now taken from
the "Available" memory reported back from free (or /proc/meminfo), which should
give a more accurate response. Physical Memory Used is still reported as the
combination of Kernel Physical Use + buffers/cache, however this may change in
a future release.
Documentation for various directives in hosts.cfg(5) has been added
pulldata=IP:PORT directives are honored, if the defaults for the host are
incorrect
cgiwrap is now installed via hardlinking (or as packaged); FollowSymLinks
is no longer needed for the xymon cgi-bin directories and can be removed.
Planned downtime settings are now applied to 'purple' statuses as well
http checks can now be performed using a HEAD request if desired.
Which RRD graphs are displayed on a status page can now be customized on
a per-test basis through the use of environment variables. For example,
GRAPHS_cpu="la,vmstat1" will cause an additional graph to be shown on
cpu tests. (Submitted by Werner Maier)
A new column will be displayed on all xymon pages allowing direct access
to a server's raw clientlog (similar to the special info and trends columns).
This can be disabled with a "noclient" tag in hosts.cfg
Additional sample protocols.cfg services are present, for svn, amqp(s) and
ircd. (Note that different ircd servers respond differently and the included
protocol conversation may require modification to work on your server.)
Changes for 4.3.19
==================
This is mostly a bugfix release (see the Changes file for a full list),
but there are some enhancements:
Apache 2.4 syntax is now supported by the sample xymon.conf file.
EXTIME= syntax in analysis.cfg and alerts.cfg files is now supported.
Note that this exclusion is applied *after* any normal TIME=
specifiers. (If a TIME= modifier is present, then times outside of
that range are already excluded.)
An Acknowledgements report CGI is now available, similar to
the Notifications report. (Thanks, Andy Smith)
Client logs with multiple trigger lines found are guaranteed to have all
the sections returned, even if this exceeds the "maxbytes" specified (up to
the compiled-in limit). Additionally, the "current" location of new log
data written since the last time xymonclient was run is now marked for
reference. (Thanks, Franco Gasperino)
A new "deltacount" option is available in client-local.cfg. It functions
similarly to "linecount" for a given log: entry, but only counts matching
lines written in the log file since the last run.
Additional filtration options are available for the xymondboard command,
including the full body of the message, and acknoweldgement and disable
comments. Also, inequalities can be used to filter an epoch timestamp
against any of: lastchange, logtime, validtime, acktime, or disabletime.
See the xymon(1) man page for details.
The process list visible in the 'procs' test of Linux and FreeBSD clients
is now generated in ASCII "forest" mode for increased legibility.
Changes for 4.3.18
==================
4.3.18 fixes a buffer overflow vulnerability in the acknowledge.cgi
script (CVE-2015-1430). All users are encouraged to upgrade.
Thank you to Mark Felder for noting the impact and Martin Lenko
for the original patch.
In previous versions, the Xymon web CGI programs were run through
a shell-script wrapper, which took care of setting up the environment
for the Xymon programs. In light of the bash 'Shell shock' bug, this
is no longer the case. Instead, a binary 'cgiwrap' utility is used
to load the xymonserver.cfg and cgioptions.cfg files before invoking
the CGI programs. This means that the cgioptions.cfg file is no longer
parsed as a shell script, so if you rely on this then it will no
longer work. In that case you must replace the symlink(s) in
xymon/cgi-bin/ with shell script wrappers which source the
cgioptions.cfg file.
