CentOS can’t remove user from group

groupusers

Asked and answered many times, but I can't get it working!!!

(On CentOS) I have the user userA and I want to remove it from group sftponly.

#groups userA
userA : sftponly
#id -Gn userA
sftponly
#gpasswd -d userA sftponly
Removing user userA from group sftponly
gpasswd: unknown member userA

#tail /etc/group
userA:x:509:
sftponly:x:510:
#tail /etc/passwd
userA:x:509:510::/home/userA:/bin/bash/

so gpasswd not working. Also:

usermod -G fourpoints fourpoints

No result.

I don't know really what to do, I'm not sure about editing /etc/group either…

Best Answer

Ran into the same issue. Was able to do the following to resolve this:

gpasswd -d user group

Related Solutions

Users Group – How to Remove a User from a Group

You can use gpasswd:

# gpasswd -d user group

then the new group config will be assigned at the next login, at least on Debian. If the user is logged in, the effects of the command aren't seen immediately.

User created without a password behaves as if he had one

A user is created by default as a locked account. The field that should contain the password hash in /etc/shadow will contain !!. When an account is locked, that account is available to root only (root can su but logins aren't allowed). If you 'unlock' the account which simply removes the !! you will be allowed to change the password.

[root@test ~]# su - test
[test@test ~]$ passwd
Changing password for user test.
Changing password for test.
(current) UNIX password:
[test@test ~]$ exit
logout
[root@test ~]# passwd -u test
Unlocking password for user test.
passwd: Warning: unlocked password would be empty.
passwd: Unsafe operation (use -f to force)
[root@test ~]# passwd -u test -f
Unlocking password for user test.
passwd: Success
[root@test ~]# su - test
[test@test ~]$ passwd
Changing password for user test.
New password:

Best Answer

Related Solutions

Users Group – How to Remove a User from a Group

User created without a password behaves as if he had one

Related Question