Posts tagged “Linux”

  1. 5 min read

    Tuning PHP-FPM: how to calculate pm.max_children

    Set PHP-FPM's pm.max_children by measuring, not guessing. Measuring process memory, the formula, pm modes, the status page and the slowlog.

  2. 5 min read

    The server is slow: 10 Linux commands to run before you panic

    Ten commands that tell you within five minutes whether a slow Linux server is short on CPU, memory, disk or network, or whether the application is to blame.

  3. 6 min read

    The first 30 minutes on a new Linux server: a security checklist

    What to do in the first half hour on a fresh Ubuntu or Debian server. SSH keys, firewall, fail2ban, automatic updates, swap and a first backup.