/etc/security/limits.d/nofile.conf
root - nofile 10240
linghegu - nofile 10240
root - nofile 10240
linghegu - nofile 10240
/etc/security/limits.d/core.conf
root - core unlimited
linghegu - core unlimited
/etc/security/limits.d/nofile.conf
root - nofile 10240
linghegu - nofile 10240
root - nofile 10240
linghegu - nofile 10240
/etc/security/limits.d/core.conf
root - core unlimited
linghegu - core unlimited