There are times when you may need to prevent users from logging into the system. Here is a way of doing that.
# cat > /etc/nologin
The system is currently unavailable to all users. Try back in two hours.
Ctrl+d
Here is the message you will get when you try to login as a user. As you can see, it echoes the contents of the /etc/nologin file.
# login
login: esofthub
Password:
The system is currently unavailable to all users. Try back in two hours.
4 comments:
and then how do you reenable logins?
Delete or mv (rename) the nologin file with the super user account, root. The nologin file has no effect on it.
I doubt that "cat" understands the ":wq" ... seems more like vi :-)
Maybe you meant something like cat > /etc/nologin <<EOF (heredoc stuff ?)
stephane, I'm chuckling over here in Korea. I can't believe I did that. It was a late night post, and I didn't proof the post. I'll make the correction. Thanks for keeping me straight. Roy
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