Computer security is paramount. Timely operating system and application updates are key. This goes for your Bitcoin and Lightning nodes. This goes for your docker containers too. When was the last time you updated them all? Bragging about "uptime" means you're bragging about running a kernel with known vulnerabilities. Update your systems and reboot them. The more you know.
You can upgrade and restart Linux kernel without rebooting whole system (kexec).
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this is something for the advanced class. the beginnings class is still learning how to ssh into their machines to patch them.
Ser I have a Cisco 5520 eol can't upgrade. We're broke af can't replace. What do?
