Linux
Intermediate
What is Ulimit?
A command that sets or displays resource limits for user processes, such as maximum open files or memory usage.
Ulimit controls per-process resource limits. Common limits include open files (-n), maximum processes (-u), stack size (-s), and file size (-f). View current limits with ulimit -a.
Limits are set per session or permanently in /etc/security/limits.conf. Web servers and databases often need increased file descriptor limits (e.g., ulimit -n 65535) to handle many concurrent connections.
