All,
There a number of reports from different distributions over time of
spurious log messages of "XXXXX DIGEST-MD5 common mech free" that have been
encountered with everything from mail packages to web servers. Starting
September 11, this started on Arch with php-legacy installed. On this box I
have 32 journals going back to April, 2023,
After saving the entries from the journal, it's clear this error started on
September 11 and that roughly corresponds to my setup of nextcloud on this
box. The journal entries get quite chatty, e.g.
Sep 22 06:55:25 2pi httpd[35305]: DIGEST-MD5 common mech free
Sep 22 06:58:34 2pi systemd[1]: Started Nextcloud; run cron.php.
Sep 22 06:58:36 2pi php-legacy[35340]: DIGEST-MD5 common mech free
Sep 22 06:58:36 2pi systemd[1]: nextcloud-cron.service: Deactivated successfully.
Sep 22 06:59:58 2pi httpd[35307]: DIGEST-MD5 common mech free
Sep 22 07:03:35 2pi systemd[1]: Started Nextcloud; run cron.php.
Sep 22 07:03:36 2pi php-legacy[35405]: DIGEST-MD5 common mech free
Sep 22 07:03:36 2pi systemd[1]: nextcloud-cron.service: Deactivated successfully.
Sep 22 07:08:27 2pi sudo[35454]: david : TTY=pts/1 ; PWD=/home/david ;
USER=root ; COMMAND=/usr/bin/journalctl --no-pager --full -f
Sep 22 07:08:27 2pi sudo[35454]: pam_unix(sudo:session): session opened for
user root(uid=0) by david(uid=1000)
Sep 22 07:08:35 2pi systemd[1]: Started Nextcloud; run cron.php.
Sep 22 07:08:36 2pi php-legacy[35457]: DIGEST-MD5 common mech free
Sep 22 07:08:36 2pi systemd[1]: nextcloud-cron.service: Deactivated successfully.
Sep 22 07:08:47 2pi systemd[1]: Reloading Apache Web Server...
Sep 22 07:08:47 2pi httpd[35289]: DIGEST-MD5 common mech free
Sep 22 07:08:47 2pi httpd[35294]: DIGEST-MD5 common mech free
Sep 22 07:08:47 2pi httpd[35308]: DIGEST-MD5 common mech free
Sep 22 07:08:47 2pi systemd[1]: Reloaded Apache Web Server.
Sep 22 07:08:47 2pi httpd[35310]: DIGEST-MD5 common mech free
Sep 22 07:08:47 2pi httpd[35293]: DIGEST-MD5 common mech free
Sep 22 07:08:47 2pi httpd[35295]: DIGEST-MD5 common mech free
Sep 22 07:08:47 2pi httpd[35296]: DIGEST-MD5 common mech free
Sep 22 07:08:47 2pi httpd[35303]: DIGEST-MD5 common mech free
Sep 22 07:08:47 2pi httpd[35304]: DIGEST-MD5 common mech free
Sep 22 07:08:47 2pi httpd[35309]: DIGEST-MD5 common mech free
Sep 22 07:08:50 2pi httpd[35292]: DIGEST-MD5 common mech free
Sep 22 07:09:16 2pi httpd[35473]: DIGEST-MD5 common mech free
Sep 22 07:09:23 2pi php-fpm-legacy[35063]: pool nextcloud[35063]: DIGEST-MD5
common mech free
Sep 22 07:09:30 2pi php-fpm-legacy[35207]: pool nextcloud[35207]: DIGEST-MD5
common mech free
Sep 22 07:09:35 2pi httpd[35470]: DIGEST-MD5 common mech free
Sep 22 07:13:35 2pi systemd[1]: Started Nextcloud; run cron.php.
Sep 22 07:13:36 2pi php-legacy[35525]: DIGEST-MD5 common mech free
There are a dozen or so on server startup and then when nextcloud runs it's
cron job. Dumping the journal entries, it's clear when it started and it looks
like most entries are due to php-legacy, but there are httpd and
php-fpm-legacy in there as well e,g,
$ jcnl | grep 'DIGEST-MD5 common mech free' > tmp/DIGEST-MD5commonMechFree.txt
$ head tmp/DIGEST-MD5commonMechFree.txt
Sep 11 02:44:53 2pi php-legacy[12486]: DIGEST-MD5 common mech free
Sep 11 02:49:53 2pi php-legacy[12526]: DIGEST-MD5 common mech free
Sep 11 02:54:53 2pi php-legacy[12558]: DIGEST-MD5 common mech free
Sep 11 03:00:03 2pi php-legacy[12589]: DIGEST-MD5 common mech free
Sep 11 03:05:03 2pi php-legacy[12727]: DIGEST-MD5 common mech free
Sep 11 03:10:03 2pi php-legacy[12763]: DIGEST-MD5 common mech free
Sep 11 03:15:03 2pi php-legacy[12798]: DIGEST-MD5 common mech free
Sep 11 03:20:13 2pi php-legacy[12895]: DIGEST-MD5 common mech free
Sep 11 03:25:13 2pi php-legacy[25576]: DIGEST-MD5 common mech free
Sep 11 03:30:13 2pi php-legacy[25691]: DIGEST-MD5 common mech free
Is this something of concern or just something that is chatty but does no harm?
--
David C. Rankin, J.D.,P.E.
