[Lerftest-ctrls] linxuRT CPU system time

[Williams Jr., Ernest L.]

Hi Wes,


Here is a reference about TimeZone for DHCP:


https://urldefense.proofpoint.com/v2/url?u=https-3A__www.lorier.net_docs_dhcp-2Dtimezone.html&d=DwIGaQ&c=lz9TcOasaINaaC3U7FbMev2lsutwpI4--09aP8Lu18s&r=MC4BiMCxQYqEDjREdMYBjgMtK8B97Elv6HGMlZhd7K4&m=WUGI1AcrX1w2ZWn6eahNLGiHbjwHVSs5Px4eiFLk0aM&s=lm-xlpGfV36MquPdyvUoXYbeygtHpip8PouLE_oV-nA&e= 
How to specify timezones with DHCP - lorier.net<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.lorier.net_docs_dhcp-2Dtimezone.html&d=DwIGaQ&c=lz9TcOasaINaaC3U7FbMev2lsutwpI4--09aP8Lu18s&r=MC4BiMCxQYqEDjREdMYBjgMtK8B97Elv6HGMlZhd7K4&m=WUGI1AcrX1w2ZWn6eahNLGiHbjwHVSs5Px4eiFLk0aM&s=lm-xlpGfV36MquPdyvUoXYbeygtHpip8PouLE_oV-nA&e= >
www.lorier.net
How to specify timezones with DHCP. One thing that can be useful for locations where you have lots of travellers, is to have your DHCP server specify the timezone that people should be using.




________________________________
From: Wesley Moore <wmoore at jlab.org>
Sent: Friday, May 18, 2018 7:33 AM
To: Williams Jr., Ernest L.
Cc: Slepicka, Hugo Henrique; Hoobler, Sonya; lerftest-ctrls at jlab.org
Subject: Re: [Lerftest-ctrls] linxuRT CPU system time

Will have that in shortly.  Do I need this also?

option posix-tz-string code 100 = text;

Wesley

On May 18, 2018, at 10:26 AM, Williams Jr., Ernest L. <ernesto at slac.stanford.edu<mailto:ernesto at slac.stanford.edu>> wrote:

Hi Wes,

Can you set the timezone parameter in your DHCP Config for the Linux RT CPU section?


Please use this for JLAB ===> option posix-tz-string "EST5EDT,  M3.2.0, M11.1.0";


Snippet from what we have here at SLAC:

--- dhcp.conf snippet ---------------------------------------------------------------------

# ===========================================
# Let's set time zone for linuxRT CPUs
# ===========================================
option posix-tz-string code 100 = text;

# -----------------------------------------------------------------------------
# client device definitions
# -----------------------------------------------------------------------------
group {

# ===========================================
# # Let's set time zone for linuxRT CPUs
# # ===========================================
option posix-tz-string "PST8PDT,M3.2.0,M11.1.0";


 if exists user-class and option user-class = "iPXE" {




Cheers,
Ernest
________________________________
From: Lerftest-ctrls <lerftest-ctrls-bounces at jlab.org<mailto:lerftest-ctrls-bounces at jlab.org>> on behalf of Slepicka, Hugo Henrique <slepicka at slac.stanford.edu<mailto:slepicka at slac.stanford.edu>>
Sent: Thursday, May 17, 2018 2:26 PM
To: Hoobler, Sonya; lerftest-ctrls at jlab.org<mailto:lerftest-ctrls at jlab.org>
Subject: Re: [Lerftest-ctrls] linxuRT CPU system time

Hi Sonya,

Yes we will need to deal with that soon.
The DHCP server also had a TZ configuration that Wesley was going to address... @Wesley is this fixed after moving the dhcpd.conf to your dhcp server?

Cheers,
Hugo

On 5/17/18, 2:24 PM, "Lerftest-ctrls on behalf of Sonya Hoobler" <lerftest-ctrls-bounces at jlab.org<mailto:lerftest-ctrls-bounces at jlab.org> on behalf of sonya at slac.stanford.edu<mailto:sonya at slac.stanford.edu>> wrote:

    Hi Hugo,

    I see commonSetup.sh sets the time zone to SLAC time:

    export TZ=PST8PDT

    How do we want to handle this?

    And actually, the linuxRT CPU system time is 8 hours ahead:

    #date
    Thu May 17 22:19:05 PDT 2018

    so that is odd.

    Thanks,
       Sonya


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