Unstable server for 1-4 seconds every day.
My server working smooth most of time but only unstable 1-4 seconds every day.. it refuses to answer requests. I will include my chart. My questions is where should I look for ? I have used windows server long time but I am new at linux server.
I have only one crone job. Database backup daily.
0 0 * * * /directory/backup.sh
Where should I look for ? and what might cause this temporal problem.