"Warning You are inside LVE " appears on server login

Issue

• When login to a server the following warning appears:
  

  !!!! WARNING: YOU ARE INSIDE LVE !!!!"

• CageFS enabled SSH users can list others home directories names

Environment

• CloudLinux OS

Solution

1. Login as the server root and perform the following:

yum reinstall pam_lve

2. After you install RPM, ensure that the following lines were added into the PAM config files:

session    required     pam_lve.so 500 1 wheel,other

If not:

Add the user USERNAME to the wheel group:

sudo usermod -aG wheel USERNAME

3. The PAM configuration files location is the following:

/etc/pam.d/sshd
/etc/pam.d/su

Cause

Misconfigured PAM LVE module.

This warning shown because once such user gains root, a user will be inside LVE, and all applications restarted by that user will be placed inside that user LVE as well.
This behavior can be avoided by adding the user/group into a 'wheel' group, as such users will not be placed inside LVE.
If needed, extra users/groups, that will not be inside LVE, can be added by following instruction from LVE PAM module  

Useful links

More information can be obtained here:

https://docs.cloudlinux.com/shared/cloudlinux_os_components/#lve-pam-module