About wall command

**Lazydog** · 11-25-2007

Originally Posted by satimis

Thanks for your advice.

Another thought, would it be easier sending all users an urgent mail informing them server will be shutdown after half an hour?

If you know the users that would be nice, but how can you be sure they read it in time?

**matonb** · 11-25-2007

If you've set an issue.net message, notified users with wall and sent an email. I think you can say that you've done your best to notify your users

**satimis** · 11-25-2007

Originally Posted by matonb

If you've set an issue.net message, notified users with wall and sent an email. I think you can say that you've done your best to notify your users

Please explain in more detail.

Suppose I do following steps;

cat /etc/issue.net

Code:

Ubuntu 7.04

Only one line there. What is it for?

putting following message on the file

Code:

Server will be down after half an hour from now .... Please save your work.

Admin

On console start wall

# wall
Server will be down after half an hour from now ....
Please save your work
.
[Ctrl]+[D] to send the message.

What shall I do with issue.net? TIA

B.R.
satimis

**matonb** · 11-25-2007

Edit /etc/issue.net so that it contains the message you want to display when users login.

If they login via ssh, edit the file that the "Banner" option referes to in /etc/ssh/sshd_config so that it also contains the message you want displayed when users login.

**Lazydog** · 11-25-2007

Originally Posted by satimis

Please explain in more detail.

Suppose I do following steps;

cat /etc/issue.net

Code:

Ubuntu 7.04

Only one line there. What is it for?

That's just default wording.

putting following message on the file

Code:

Server will be down after half an hour from now .... Please save your work.

Admin

I think this would not be the proper way of doing this. how about something more along thses lines:

Code:

ATTENTION!!!!!!

This server will be rebooted at <date> <time>
Please save you work and log of before the above Date and Time.

As a sysadmin you have to be on top of your game or you are going to screw a lot of people and make more problems for yourself then you need to. You need to stop and think about what you are doing, what could go wrong and what you haven't thought about yet.

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