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{Updated} Linux server security checklist. #sysadmin 

Posted by jpluimers on 2019/03/11

Most tips are OK, but:

  1. for password related policies, please read these:
  2. If you do DNS, implement DNSSEC
  3. I think ipv6 is OK, but like ipv4 needs to be firewalled
  4. Be really careful with fail2ban and similar tools: they are easy ways to lock yourself out as well, for instance by someone doing a nice (D)DoS on you.

Tips: [WayBack40 Linux Server Hardening Security Tips [2017 edition] – nixCraft

Via:

–jeroen

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