Strange files appearing in /var/db/authserver

Hello

Since a couple of weeks, I’m getting these files in my /var/db/authserver directory.
As you can see, there are several created on a day basis.
Everything seems to be working fine.
Still, wondering what these mean and where it comes from

ldap:/var/db/authserver root# ls -lat
total 326064
drwx—— 1550 root wheel 52700 Feb 28 15:48 .
-rw——- 1 root wheel 13830328 Feb 28 15:48 authservermain
-rw-r–r– 1 root wheel 2143 Feb 28 15:48 authserverreplicas
-rw-r–r– 1 root wheel 85312 Feb 28 15:48 syncfile1141138095.912021.gz
-rw-r–r– 1 root wheel 1421024 Feb 28 15:48 qdsyncfile1141138096.728364-0
-rw-r–r– 1 root wheel 103403 Feb 28 15:09 syncfile1141135768.519741.gz
-rw-r–r– 1 root wheel 103397 Feb 28 14:59 syncfile1141135159.124595.gz
-rw-r–r– 1 root wheel 103398 Feb 28 14:54 syncfile1141134890.729263.gz
-rw-r–r– 1 root wheel 103366 Feb 28 13:19 syncfile1141129157.264309.gz
-rw-r–r– 1 root wheel 103413 Feb 28 12:46 syncfile1141127166.397423.gz
-rw-r–r– 1 root wheel 103381 Feb 28 12:36 syncfile1141126581.85686.gz
-rw-r–r– 1 root wheel 103428 Feb 28 11:57 syncfile1141124261.130537.gz
-rw-r–r– 1 root wheel 103448 Feb 28 10:49 syncfile1141120179.504530.gz
-rw-r–r– 1 root wheel 103444 Feb 28 09:21 syncfile1141114872.816713.gz
-rw-r–r– 1 root wheel 103424 Feb 28 08:56 syncfile1141113400.133025.gz
-rw-r–r– 1 root wheel 103398 Feb 28 07:17 syncfile1141107472.708988.gz
-rw-r–r– 1 root wheel 103399 Feb 28 06:44 syncfile1141105490.498057.gz
-rw-r–r– 1 root wheel 103388 Feb 28 06:28 syncfile1141104519.895572.gz
-rw-r–r– 1 root wheel 103388 Feb 28 03:48 syncfile1141094928.663728.gz
-rw-r–r– 1 root wheel 103387 Feb 28 03:17 syncfile1141093068.405437.gz

Any ideas?

Thanks in advance

Best regards

Commander Keen