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Deleting/Clearing systemd journal files, like btmp, and other log files

Linux stores log files in /var/log/. These logs take large amount of disk space in several gigabytes after a few months. Most of the time, we don't need these data. Here we go to clean them. To prevent it to become that big in the future it's a pretty good idea to use logrotate.
Carlotta
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Cron job – Generating weekly new DH PARAM files

DH parameters define how OpenSSL performs the Diffie-Hellman (DH) key-exchange.
Using a cron tab in Plesk to increase server security is made fast in only three minutes.
Valid for almost all Linux distributions even without Plesk administration.
Multimedia
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