One of the background things that you rellly don’t think about untill it is a problem is Time Syncronization.
The standard method to ensure that you have the correct time is Network Time Protocal (NTP).
In linux this is comanaly already installed with your distrubution.
you can verify that both NTP is installed and operating with
you should see something like this
remote refid st t when poll reach delay offset jitter ============================================================================== *pool-test.ntp.o 220.127.116.11 2 u 826 1024 377 1.558 2.208 2.816 +18.104.22.168 22.214.171.124 2 u 436 1024 377 46.977 2.289 3.186 +ns1.your-site.c 126.96.36.199 3 u 803 1024 377 76.805 2.900 2.753 ec2-54-88-192-6 .INIT. 16 u 5d 1024 0 81.509 3.510 0.000
if you get this back NTP is installed and working.
For the most part the default settings will do everything you want. but if you want to change some settings you can find the config file at.
(Be sure to restart the ntp service to reload the configuration after makeing changes.)