ulimit の変更方法

Linux
  • 現状の確認
[root@centos5 ~]# ulimit -a
core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
max nice                        (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 4096
max locked memory       (kbytes, -l) 32
max memory size         (kbytes, -m) unlimited
open files                      (-n) 1024
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
max rt priority                 (-r) 0
stack size              (kbytes, -s) 10240
cpu time               (seconds, -t) unlimited
max user processes              (-u) 4096
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited||<
  • 一時的な変更
[root@centos5 ~]# ulimit -c
0
[root@centos5 ~]# ulimit -c 65536
[root@centos5 ~]# ulimit -c
65536
  • 変更

/etc/security/limits.conf に以下の行を追加

root            soft    core            65536

/etc/pam.d/login に以下の行を追加

session required pam_limits.so