Help Center/ Image Management Service/ User Guide/ Managing Private Images/ Optimizing a Linux Private Image/ Clearing System Logs
Updated on 2022-09-16 GMT+08:00
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Clearing System Logs

Delete log files and historical records, and stop the ECS.

  1. Run the following commands to delete redundant key files:

    echo > /$path/$to/$root/.ssh/authorized_keys

    An example command is echo > /root/.ssh/authorized_keys.

    echo > /$path/$to/$none-root/.ssh/authorized_keys

    An example command is echo > /home/linux/.ssh/authorized_keys.

  1. Run the following command to clear log files in the /var/log directory:

    rm -rf /var/log/*

    Before deleting log files, back up log directories and log files required by application startup. For example, if the default Nginx log directory /var/log/nginx is deleted, Nginx may fail to be started.

  2. Run the following commands to delete historical records:

    echo > /root/.bash_history

    history -c