topic Re: tz question in Operating System - HP-UX

tz question

navin — Fri, 21 Sep 2007 18:41:01 GMT

Hello,
I have a server running hp-ux11.23
I have changed the time zone to GMT recently from CST.For that i have edited /etc/profile.
Now the cients are having some problems when running thier application....application log files are showing up as CST times.
What could be the issue. any idea

Thanks

Re: tz question

A. Clay Stephenson — Fri, 21 Sep 2007 18:53:11 GMT

When you don't bother to identify the client application, it's difficult to know. By default, TZ is not defined in /etc/profile but rather in /etc/TIMEZONE. Moreover, the last TZ setting wins so each user's .profile could be overriding /etc/profile. All of this makes the (silly) assumption that your client application does a traditional login. The TZ may be inherited from inetd if inetd is used to spawn client connections. You would need to restart inetd in that case.

Re: tz question

James R. Ferguson — Fri, 21 Sep 2007 19:02:40 GMT

Hi:

If you globally changed the server's TZ (timezone) because you wanted all users and processes to use the new localtime, you should reboot the server so that *every* process has a chance to re-cache the correct TZ settings.

That said, a better choice is to edit '/etc/TIMEZONE' which is sourced by 'etc/profile'.

An effective way to perform this is to run:

# /sbin/set_parms timezone

Regards!

...JRF...

Re: tz question

navin — Fri, 21 Sep 2007 19:13:24 GMT

Thanks so much for both of you.
Can i kindly request...
could you please let me know an example service or application that use inetd to spawn client connections..
Thanks so much sir

Re: tz question

James R. Ferguson — Fri, 21 Sep 2007 19:20:02 GMT

Hi (again):

> could you please let me know an example service or application that use inetd to spawn client connections

Simply examine your '/etc/inetd.conf'. Standardly, FTP and TELNET along with other "internet" services, are started by the 'inetd' daemon.

Regards!

...JRF...

Re: tz question

navin — Fri, 21 Sep 2007 19:24:18 GMT

Thanks James.Which i'm aware of ...i miss understood in the first place .
Thanks again

Re: tz question

Bill Hassell — Fri, 21 Sep 2007 21:00:01 GMT

The time in HP-UX is always kept in GMT. The value for TZ modifies the time all applications and commands use. If CST time is shown in the application logs, then the apps were started with TZ=CST. You can change the value of TZ anytime, even setting different TZ values for different apps. TZ is a simple environment variable -- change it as necessary.