Send System Messages to Server Users

If your server has multiple users, you might want an easy way to send messages to them and make sure they receive them. The best way to do that is to send it right in the console. One tool you can use to do just that is “wall”. With it, you can send messages […]

How do I Greet Linux Users with a Login Message?

There may be times when you want to send a message to your server users that they all can see when they log in. While “wall” allows you to send messages to currently logged in users, you need a different tool to make sure all users get it whenever they happen to log […]

How to send a system message to all *BSD users

Any good system administrator needs to be able to send authoritative messages to any online users. Fortunately, with BSD variants such as FreeBSD and OpenBSD, it is very easy with a tool called “wall”.
To send a general message to all users logged into the system, follow this format:

# wall
your message here
more of your message

At the […]

How to Send Live Messages to All Shell Users

In a previous post, we explained how to send a message of the day (MOTD) to all users whenever they log into your server’s shell. It is a perfect way to reach users when they log in, but it will not allow you to send new messages to users who are currently logged in. […]