Hi Bin, Thanks for your answers. We have network-accessible NTP and log servers already (I'm migrating an old cluster to xCAT) and wanted to use this servers too, this is why I asked the question.
You're right about the logs. This is why I wanted to forward the logs to both servers and not to our central log server only. Thanks again for the answers. They helped a lot. Regards, Hakan On 12/01/2017 06:54 AM, Bin XA Xu wrote: > In most of cluster, the compute nodes do not have direct networking to > access the external or corporate NTP servers. > Then it would like the head node to act as a broker, it means MN get > time from external ntp server and all CNs sync time from MN. > To achieve this , You need to set `site.extntpservers` for it, and run > `makentp` > > If your CNs could access the external ntp server directly via provision > network, you can also set `site.ntpservers`, and those ntp servers will > be configured on CNs by `setupntp` postscript after it provisioned > > For syslog, xCAT did not like to forwarding to external syslog server by > default, as it is hard to debugging issue when errors during provisioning. > > So by default it will collect all syslogs. But you can still configure > your rsyslog by some rules on your MN to forward to others syslog server. > > Bin Xu > HPC Software Development > Software Defined Infrastructure, IBM Systems > Phone: 86-010-82454067 > E-mail: bx...@cn.ibm.com <mailto:bx...@cn.ibm.com> > > > > ----- Original message ----- > From: Hakan Bayındır <hakan.bayin...@tubitak.gov.tr> > To: xCAT User Mailing List <xcat-user@lists.sourceforge.net> > Cc: > Subject: [xcat-user] Network Log servers and NTP servers. > Date: Wed, Nov 29, 2017 7:55 PM > > Hello, > > I'm slowly configuring my xCAT installation further, and want to define > log servers and NTP servers to my CNs during installation. > > As far as I understood, if undefined, xCAT MN is used as NTP and log > server if none defined, however our cluster have a central log and NTP > server. > > How can I add these servers in addition to the list so, the CNs have two > NTP server addresses and two log server targets? > > Thanks in advance, > > Hakan > -- > *Hakan BAYINDIR* > Başuzman Araştırmacı > Ağ Teknolojileri Birimi > TÜBİTAK ULAKBİM > T.C. Bilim, Sanayi ve Teknoloji Bakanlığı (Eski Bina) > Mustafa Kemal Mahallesi Dumlupınar Bulvarı > (Eskişehir Yolu 7.Km) 2151.Cadde No:154 > ODTÜ Karşısı > 06510 Çankaya, ANKARA > T +90 312 298 9373 > F +90 312 266 5181 > www.ulakbim.gov.tr <http://www.ulakbim.gov.tr> > hakan.bayin...@tubitak.gov.tr > > ................................................................................................................................ > > <http://www.tubitak.gov.tr> > > Sorumluluk Reddi <http://www.tubitak.gov.tr/sorumlulukreddi> > > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > xCAT-user mailing list > xCAT-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/xcat-user > > > > > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > > > > _______________________________________________ > xCAT-user mailing list > xCAT-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/xcat-user > -- *Hakan BAYINDIR* Başuzman Araştırmacı Ağ Teknolojileri Birimi TÜBİTAK ULAKBİM T.C. Bilim, Sanayi ve Teknoloji Bakanlığı (Eski Bina) Mustafa Kemal Mahallesi Dumlupınar Bulvarı (Eskişehir Yolu 7.Km) 2151.Cadde No:154 ODTÜ Karşısı 06510 Çankaya, ANKARA T +90 312 298 9373 F +90 312 266 5181 www.ulakbim.gov.tr <http://www.ulakbim.gov.tr> hakan.bayin...@tubitak.gov.tr ................................................................................................................................ <http://www.tubitak.gov.tr> Sorumluluk Reddi <http://www.tubitak.gov.tr/sorumlulukreddi>
signature.asc
Description: OpenPGP digital signature
------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________ xCAT-user mailing list xCAT-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xcat-user
