What do linux operation and maintenance engineers do in enterprises?

1. Log in to the system every day to check the load operation of the system and whether there are error logs and alarm logs.

2. Troubleshoot the operating system, and analyze the cause of alarm or error according to the operating system fault log, so as to solve the problem and ensure the high availability of the operating system.

3. Server status confirmation: In addition to running the operating system, some applications or databases will be installed on the server, and the operation and maintenance engineer needs to check whether the applications or databases running on the linux system are normal every day.

4. Backup, operation and maintenance engineer's housekeeping skills, database backup and recovery. Generally speaking, as long as the database has a backup strategy, it will back up itself. You only need to monitor whether the backup task is executed.

5. Server tuning, this requirement is relatively high. With the increase of the use time of linux, its status will decline, and the operation and maintenance engineer has the ability to tune the performance of the operating system and database to ensure that the system is in the best state.