This is my instruction of how I set up CentOS.
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Administration
CentOS server setup: security, packages, and configuration guides
Andrew Dorokhov
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1 min read
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Contents
(7)
01
CentOS package updates: yum, dnf, and applying security patches
1 min
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02
CentOS users and sudo: adduser, wheel group, and privileges
2 min
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03
Choosing CentOS, AlmaLinux, or Rocky: versions, EOL, and migration
1 min
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04
Linux firewall: firewalld, zones, ports, and permanent rules
2 min
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05
SSH hardening: change default port, firewall, and sshd_config
1 min
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06
Linux swap: swapfile, swapon, fstab, and memory tuning
2 min
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07
Linux time zone and NTP: timedatectl, chrony, and clock sync
1 min
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