Leaving CentOS 7 behind
CentOS 7 is past end of life and receives no further security updates. This is how to get off it without losing the server.
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1
Why CentOS 7 is a problem now
“I am still on CentOS 7 and it works fine. Why should I care? Explain what end of life actually means for security updates, what happens the next time a serious vulnerability lands, the compliance and PCI angle, and how long you realistically have.”
8 min read -
2
Taking a backup you can actually restore from
“Before I migrate my server, how do I take a backup I can genuinely fall back to? Cover what to capture beyond the website files, getting it off the server, and actually testing the restore, because an untested backup is the reason migrations turn into outages.”
9 min read -
3
Choosing your replacement for CentOS 7
“What should I move to from CentOS 7? Compare AlmaLinux, Rocky Linux and Ubuntu LTS for someone who wants the least disruption, explain which is the closest match to what they have, and give the support horizon for each.”
9 min read -
4
Migrating in place or rebuilding: which is safer?
“Should I upgrade my CentOS 7 server in place or build a new one and move across? Explain both honestly, including why in place upgrades across a major version so often go wrong, and recommend one, with the conditions under which the other is reasonable.”
9 min read -
5
What breaks when you leave CentOS 7, and how to fix it
“What is likely to break when I move off CentOS 7? Cover the PHP and MySQL version jumps and what they break in older applications, package names that changed, configuration file locations that moved, and the SELinux and firewall differences that catch people out.”
11 min read
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