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stay in multi user mode but stop logins to system?

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Operating Systems Solaris stay in multi user mode but stop logins to system?
# 1  
Old 02-19-2009
stay in multi user mode but stop logins to system?
I want to apply patches in multiuser mode but stop logins of other users while I do it?

What is the best way to do this?

I will be connected to the system via a putty session over a serial cable from another system (console is messed up)...

Should I put in a dummy passwd and shadow file temporarily? If I do that do I have to restart any services when I switch them out? I wouldn't think so but I thought I would ask.

Is there a better way?

Thanks in advance,
# 2  
Old 02-19-2009
try

Code:
touch /nologin

# 3  
Old 02-19-2009
WOW I had no idea that existed, that is awesome!

Thank you very much for sharing that, it is exactly what I needed.
# 4  
Old 02-19-2009
BTW what will that do to active logins? I mean if I were to do it now would it kill existing ones, or just stop new ones?

And just to clarify I will still be able to get to the system over the serial cable interface using putty from another box right? Just want to be sure as the direct login via the kvm switch directly connected to the box is messed up right now. Wouldn't want to shoot myself in the foot there if you know what I mean...
# 5  
Old 02-19-2009
i just read it is "/etc/nologin"! have a look here:
Solaris 10 Security
# 6  
Old 02-19-2009
I did a search on it when you posted it and found the same place myself.

I guess I will just try it and see.

Log in, su - to root, touch the file.

try to ssh in again on another session and see if it is not allowed.

try to get in via putty over serial cable on the other box.

As long as I keep the one login open and it doesn't kill it when I create the file, which I don't think it will, I should be good to rm it if need be...
# 7  
Old 02-24-2009
Are u using Sparc Machine...

then whats the model...
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