open files limit

Learn to fix the "Too many open files" error in Linux using the `ulimit` command. This guide covers diagnosing and increasing the file descriptor limits involving temporary changes with `ulimit -n`, editing `/etc/security/limits.conf` for permanent adjustments, and modifying application-specific settings. Reboot your system to apply changes and verify by rechecking the limits. Additional resources provide deep dives into managing file limits effectively in Linux environments.