linux下limits.conf 修改不生效的原因

步骤一: 在/etc/pam.d/login 文件中末尾添加一行

[weblogic@kjgl-web ~]$ cat  /etc/pam.d/login 
#%PAM-1.0
auth [user_unknown=ignore success=ok ignore=ignore default=bad] pam_securetty.so
auth       include      system-auth
account    required     pam_nologin.so
account    include      system-auth
password   include      system-auth
# pam_selinux.so close should be the first session rule
session    required     pam_selinux.so close
session    required     pam_loginuid.so
session    optional     pam_console.so
# pam_selinux.so open should only be followed by sessions to be executed in the user context
session    required     pam_selinux.so open
session    required     pam_namespace.so
session    optional     pam_keyinit.so force revoke
session    include      system-auth
-session   optional     pam_ck_connector.so
session    required     pam_limits.so   #要有这一行

步骤二:在/etc/pam.d/sshd 文件中末尾添加一行

[weblogic@kjgl-web ~]$ cat /etc/pam.d/sshd   #这个文件就新建一个,添加如下内容
#%PAM-1.0
auth       required     pam_sepermit.so
auth       include      password-auth
account    required     pam_nologin.so
account    include      password-auth
password   include      password-auth
# pam_selinux.so close should be the first session rule
session    required     pam_selinux.so close
session    required     pam_loginuid.so
# pam_selinux.so open should only be followed by sessions to be executed in the user context
session    required     pam_selinux.so open env_params
session    required     pam_namespace.so
session    optional     pam_keyinit.so force revoke
session    include      password-auth
session    required     pam_limits.so  #要有这一行

步骤三:修改sshd的配置文件,开启PAM功能

[weblogic@kjgl-web ~]$ grep -n Use /etc/ssh/sshd_config 
46:#AuthorizedKeysCommandUser nobody
52:#IgnoreUserKnownHosts no
82:UsePAM yes   #开启
83:UseLogin yes #开启
91:#X11UseLocalhost yes
96:#PermitUserEnvironment no
100:#UseDNS no
114:#Match User anoncvs

步骤四:重启sshd 即可

/etc/init.d/sshd restart
# linux
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