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Help Center/ Image Management Service/ User Guide/ Managing Private Images/ Optimizing a Linux Private Image/ Clearing System Logs

Clearing System Logs

Updated on 2022-09-21 GMT+08:00

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

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.

Run the following command to clear log files in the /var/log directory:
rm -rf /var/log/*

NOTE:

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.
Run the following commands to delete historical records:
echo > /root/.bash_history

history -c

Parent topic: Optimizing a Linux Private Image

Previous topic: Installing Native KVM Drivers

Next topic: Encrypting Images

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