How to solve the cannot open session prompt when using the su command in Centos 7
- Problem
- Solve
Problem
刚才用文章CentOS创建sudo用户创建了一个账号lwk，然后用su - lwk命令的时候报错了。
-bash-4.2$ su - lwk
Password:
Last failed login: Thu Jun 28 15:39:52 CST 2018 from 36.24.223.44 on ssh:notty
There was 1 failed login attempt since the last successful login.
su: cannot open session: Permission denied
-bash-4.2$
Solve
经多方查找，终于解决了访问题。解决思路如下：
编辑文件/etc/security/limits.conf，在文件末尾追加如下内容：
lwk soft nofile 65535
lwk hard nofile 65535
其中，lwk是打算用su - lwk命令进行切换用户的用户名。
参考文献：
- Centos Docker container su: cannot open session: Permission denied
- linux用户登陆显示：could not open session
- Unable to su into an account: could not open session
- Running “su” Returns the Error “could not open session”