What are these files in /var/lib/mysql ?

Hi,

Can someone explain what these files would be in the default /var/lib/mysql directory:

root@trust [/var/lib/mysql]# ls -ltr trust*
-rw-rw---- 1 mysql root 2172 Oct 6 04:45 trust.siterollout.com.err
-rw-rw---- 1 mysql mysql 5 Oct 6 04:45 trust.siterollout.com.pid
-rw-rw---- 1 mysql mysql 234402 Feb 14 11:13 trust-bin.001
-rw-rw---- 1 mysql mysql 83067 Feb 14 11:19 trust-bin.002
-rw-rw---- 1 mysql mysql 22650086 Feb 14 15:06 trust-bin.003
-rw-rw---- 1 mysql mysql 29195 Feb 14 15:11 trust-bin.004
-rw-rw---- 1 mysql mysql 750185 Feb 14 15:35 trust-bin.005
-rw-rw---- 1 mysql mysql 79 Feb 14 15:36 trust-bin.006
-rw-rw---- 1 mysql mysql 2489768 Feb 14 15:41 trust-bin.007
-rw-rw---- 1 mysql mysql 79 Feb 14 15:41 trust-bin.008
-rw-rw---- 1 mysql mysql 79 Feb 14 15:41 trust-bin.009
-rw-rw---- 1 mysql mysql 2375771 Feb 14 15:44 trust-bin.010
-rw-rw---- 1 mysql mysql 814077 Feb 14 16:02 trust-bin.011
-rw-rw---- 1 mysql mysql 2145086 Feb 14 16:57 trust-bin.012
-rw-rw---- 1 mysql mysql 5154253 Feb 14 18:45 trust-bin.013
-rw-rw---- 1 mysql mysql 79 Feb 14 18:46 trust-bin.014
-rw-rw---- 1 mysql mysql 299478 Feb 14 19:37 trust-bin.015
-rw-rw---- 1 mysql mysql 10765 Feb 14 19:42 trust-bin.016
-rw-rw---- 1 mysql mysql 224407 Feb 14 20:00 trust-bin.017
-rw-rw---- 1 mysql mysql 697670 Feb 14 20:31 trust-bin.018
-rw-rw---- 1 mysql mysql 79 Feb 14 20:32 trust-bin.019
-rw-rw---- 1 mysql mysql 5771897 Feb 14 22:06 trust-bin.020
-rw-rw---- 1 mysql mysql 31822 Feb 14 22:10 trust-bin.021
-rw-rw---- 1 mysql mysql 30563502 Feb 15 04:33 trust-bin.022
-rw-rw---- 1 mysql mysql 19758668 Feb 15 09:46 trust-bin.023
-rw-rw---- 1 mysql mysql 77984780 Feb 15 20:41 trust-bin.024
-rw-rw---- 1 mysql mysql 8795 Feb 15 20:54 trust-bin.025
-rw-rw---- 1 mysql mysql 12863995 Feb 15 22:39 trust-bin.026
-rw-rw---- 1 mysql mysql 54068077 Feb 16 09:31 trust-bin.027
-rw-rw---- 1 mysql mysql 43311801 Feb 16 16:40 trust-bin.028
-rw-rw---- 1 mysql mysql 351810356 Feb 18 23:06 trust-bin.029
-rw-rw---- 1 mysql mysql 226898707 Feb 19 23:20 trust-bin.030
-rw-rw---- 1 mysql mysql 2022975 Feb 19 23:30 trust-bin.031
-rw-rw---- 1 mysql mysql 200 Feb 19 23:35 trust-bin.032
-rw-rw---- 1 mysql mysql 12399139 Feb 20 00:10 trust-bin.033
-rw-rw---- 1 mysql mysql 8367738 Feb 20 00:45 trust-bin.034
-rw-rw---- 1 mysql mysql 200 Feb 20 00:48 trust-bin.035
-rw-rw---- 1 mysql mysql 390604562 Feb 22 01:00 trust-bin.036
-rw-rw---- 1 mysql mysql 79 Feb 22 02:05 trust-bin.037
-rw-rw---- 1 mysql mysql 53955772 Feb 22 11:17 trust-bin.038
-rw-rw---- 1 mysql mysql 239525698 Feb 24 10:42 trust-bin.039
-rw-rw---- 1 mysql mysql 784 Mar 3 20:37 trust-bin.index
-rw-rw---- 1 mysql root 42901598 Mar 7 10:43 trust.siterollout.net.err

Regards,
Suhail.

 

 

 

 

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