OS: CentOS release 6.5 (Final)
관리자 권한이 없는 일반 사용자 계정에서 'ulimit -n' 사용시 아래와 같은 에러가 발생했다.
증상
[1004lucifer@1004lucifer ~]$ ulimit -n 10240
-bash: ulimit: open files: cannot modify limit: 명령을 허용하지 않음
[1004lucifer@1004lucifer ~]$
인터넷으로 알아보니 /etc/profile 파일에 해당 유저가 들어왔을 때 ulimit 시키라고 되어있어서 해보니 아래와 같이 해결되지 않았다.
1004lucifer-4:Downloads btb$ ssh 1004lucifer@[domain]
1004lucifer@[domain]'s password:
Last login: Mon Sep 22 08:37:07 2014 from [ip]
-bash: ulimit: max user processes: cannot modify limit: 명령을 허용하지 않음
[1004lucifer@1004lucifer ~]$
조치사항
(인터넷을 보다가 내가 해결한 방법)
$ vi /etc/security/limits.conf
# 아래 부분 추가
1004lucifer soft nofile 10240
1004lucifer hard nofile 10240
해당파일의 원문은 아래와 같다.
# /etc/security/limits.conf
#
#Each line describes a limit for a user in the form:
#
#<domain> <type> <item> <value>
#
#Where:
#<domain> can be:
# - an user name
# - a group name, with @group syntax
# - the wildcard *, for default entry
# - the wildcard %, can be also used with %group syntax,
# for maxlogin limit
#
#<type> can have the two values:
# - "soft" for enforcing the soft limits
# - "hard" for enforcing hard limits
#
#<item> can be one of the following:
# - core - limits the core file size (KB)
# - data - max data size (KB)
# - fsize - maximum filesize (KB)
# - memlock - max locked-in-memory address space (KB)
# - nofile - max number of open files
# - rss - max resident set size (KB)
# - stack - max stack size (KB)
# - cpu - max CPU time (MIN)
# - nproc - max number of processes
# - as - address space limit (KB)
# - maxlogins - max number of logins for this user
# - maxsyslogins - max number of logins on the system
# - priority - the priority to run user process with
# - locks - max number of file locks the user can hold
# - sigpending - max number of pending signals
# - msgqueue - max memory used by POSIX message queues (bytes)
# - nice - max nice priority allowed to raise to values: [-20, 19]
# - rtprio - max realtime priority
#
#<domain> <type> <item> <value>
#
#* soft core 0
#* hard rss 10000
#@student hard nproc 20
#@faculty soft nproc 20
#@faculty hard nproc 50
#ftp hard nproc 0
#@student - maxlogins 4
# End of file
사용방법이 적혀있어서 어렵지 않게 수정을 했다.
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