I want to check if I understood this correctly. If an instance has the line `nameserver 172.20.255.1` in /etc/resolv.conf, it's all good?
*Sebastian Berlin* Utvecklare/*Developer* Wikimedia Sverige (WMSE) E-post/*E-Mail*: sebastian.ber...@wikimedia.se Telefon/*Phone*: (+46) 0707 - 92 03 84 On Fri, 15 Sept 2023 at 14:57, Arturo Borrero Gonzalez < aborr...@wikimedia.org> wrote: > Hi there, > > We recently did some DNS maintenance operations [0]. As part of the > maintenance, > we moved the DNS recursor server IP address to be 172.20.255.1. > > However, we have detected a number of virtual machines with broken puppet, > that > did not pick up the change. > > This is traditionally done via the file /etc/resolv.conf with a line like: > > === 8< === > nameserver 172.20.255.1 > === 8< === > > Please fix the virtual machines to use the new resolver, or if the machine > is > not in use, consider shutdown (or delete) it. Feel free to ask for > assistance if > required [1]. > > After some period of time, the old resolver addresses will stop working > and > unmaintained virtual machines will become even more broken. > > thanks, regards. > > [0] > > https://lists.wikimedia.org/hyperkitty/list/cloud-annou...@lists.wikimedia.org/thread/VMLED6L7XCIF3IJJB2K2SSCHCN2UTIX4/ > [1] > > https://wikitech.wikimedia.org/wiki/Help:Cloud_Services_introduction#Communication_and_support > -- > Arturo Borrero Gonzalez > Senior SRE / Wikimedia Cloud Services > Wikimedia Foundation > _______________________________________________ > Cloud mailing list -- cloud@lists.wikimedia.org > List information: > https://lists.wikimedia.org/postorius/lists/cloud.lists.wikimedia.org/ >
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