shutdown -h now and /etc/nologin

yull · 12-09-2004, 08:40 AM

hi all

I can't figure out why the /etc/nologin (and also /etc/nologin.boot) file is not removed from my system when I do a shutdown of it.

As you can read here( Linux - Security -> strange ssh problem)
I had some troubles logging on my system.

Now I understood why (thanks sigsegv and krugger), I'd like to fix this. But I do not understand what's going wrong.

This comes from the man shutdown pages :

Quote:

If shutdown is called with a delay, it creates the advisory file /etc/nologin which causes programs such as login(1) to not allow new user logins. Shutdown removes this file if it is stopped before it can signal init
(i.e. it is cancelled or something goes wrong). It also removes it before calling init to change the runlevel.

but I'm doing a shutdown like this:

Code:

shutdown -h now

without any delay.

thanks for reading this

yull

kees-jan · 12-09-2004, 08:51 AM

Ususally, /etc/nologin is removed during the boot process. You may want to check your boot scripts.

Groetjes,

Kees-Jan

yull · 12-09-2004, 08:57 AM

those from /etc/init.d?

It's true I've written my first one not a long time ago, to start tomcat5 on system bootup and kill it on system shutdown.

maybe I did st wrong....

I copying it here.

Code:

#! /bin/sh
#
# Load your variables

export JAVA_HOME=/usr/local/bin/j2sdk1.4.2_05/
export TOMCAT_HOME=/usr/share/tomcat5
case "$1" in

   start)        
	$TOMCAT_HOME/bin/catalina.sh run         
        cmdtext="starting"        
        ;;
       
   restart)
       cmdtext="restarting"        
       ;;
   
   stop)        
       $TOMCAT_HOME/bin/catalina.sh stop
       cmdtext="stopping"        
       ;;

   *)        
       echo "Usage: $0 {start|stop|restart}"
       exit 1       
       ;;

   esac
   echo "Tomcat $cmdtext."
   if [ $? != 0 ]; then        
           echo "$status"        
           exit 1
   fi
exit 0

kees-jan · 12-09-2004, 12:57 PM

Ah... Finally at home...

On my debian box (running woody), there is in /etc/rcS.d a link called S10checkroot.sh. It points to /etc/init.d/checkroot.sh. Within it, there is a line that removes /etc/nologin.

Because this script is executed fairly early during boot, /etc/nologin should always be deleted.

Groetjes,

Kees-Jan

yull · 12-15-2004, 07:42 AM

FYI

I found this out:

running the tomcat server with 'catalina.sh run' makes it work in the current screen process.....
but running it with 'catalina.sh start' make it run into a separate process.

changing this avoids the login process to 'freeze' (I'm hating saying this for a linux system), and now, the /etc/nologin is successfully removed, tomcat is successfully started and the login process looks ok to me.

I'm learning each day;-)