topic Re: How start-up deamons work in Operating System - HP-UX

How start-up deamons work

John Mai_1 — Thu, 18 Aug 2005 16:32:52 GMT

Hi,

I am running HPUX 11.11. I have question regarding the start-up deamons every time the system boots up.

What program or deamon executes these startup deamons below?

Start print spooler
Output from "/sbin/rc2.d/S720lp start":
----------------------------
"/sbin/rc2.d/S720lp start" SKIPPED

Starting HP Distributed Print Service
Output from "/sbin/rc2.d/S722pd start":
----------------------------

Start clock daemon
Output from "/sbin/rc2.d/S730cron start":
----------------------------
cron started

Start diagnostic subsystem
Output from "/sbin/rc2.d/S742diagnostic start":

Thanks,

John

Re: How start-up deamons work

Mel Burslan — Thu, 18 Aug 2005 16:42:51 GMT

mother of all these SXXXabc.sh scripts is /sbin/rc which in turn descends into

/sbin/rc[0-4].d

and executes the scripts in their numerical order. This is why the numbering of XXX for each script is important.

Re: How start-up deamons work

DCE — Thu, 18 Aug 2005 17:05:45 GMT

Also there usually is an associated file in /etc/rc.config.d that contains the variable value that determines if an rc script is actually run
1=run
0=do not run

Re: How start-up deamons work

John Mai_1 — Thu, 18 Aug 2005 18:24:43 GMT

Thanks.

John

Re: How start-up deamons work

Yogeeraj_1 — Fri, 19 Aug 2005 23:36:33 GMT

hi john,

see also the attached document.

kind regards
yogeeraj

Re: How start-up deamons work

lawrenzo — Sat, 20 Aug 2005 00:07:26 GMT

also once the system is running you can find application start / stop scripts in

# /sbin/init.d/*

# ll
-r-xr-xr-x 1 root sys 1454 Aug 2 2002 vxvm-daemon-kill
-r-xr-xr-x 1 root sys 1970 Aug 2 2002 vxvm-nodes-check
-r-xr-xr-x 1 root sys 14601 May 6 2004 vxvm-reconfig
-r-xr-xr-x 1 root sys 2607 Aug 2 2002 vxvm-recover
-r-xr-xr-x 1 root sys 14600 May 6 2004 vxvm-rootreconfig
-r-xr-xr-x 1 root sys 5366 May 6 2004 vxvm-startup
-r-xr-xr-x 1 root sys 3150 Aug 2 2002 vxvm-sysboot
-r-xr-xr-x 1 root sys 3784 Sep 21 2001 webadmin
-r-xr-xr-x 1 root sys 2355 Jun 25 2004 xf86
-r-xr-xr-x 1 root sys 1176 Nov 14 2000 xfs
-r-xr-xr-x 1 root sys 2060 Jul 26 2002 xntpd

etc etc

you can use these to stop start applications when the server is running.

each app will start at a different run level - to see which run level a certain script starts:

find /sbin -name "*xntpd*" -exec ll {} \;

see man init

HTH