Please note all 5 of these host are old HP ProLiants. I'm not sure where this setting is on these hosts, but I'm assuming in the bios and each of these will require downtime/reboot to disable.

As this is going to require some troubleshooting, perhaps one of the Data-Persistence folks can advise which of the 4 machines of theirs we can take down to troubleshoot to disable netbios?

Note that it's on their IPMI/ILO interfaces, not sure they need to go down.

I've disabled the multicast discovery on the ilom interface for db1140 (10.65.1.134) as a test to see if it stops the netbios port broadcasts from the ilom interfaces.

https://logstash.wikimedia.org/app/dashboards#/view/69b9fbe0-3c1b-11e8-90f7-4958fd3a62b4?_g=h@1be52a8&_a=h@71b611e

It didn't fix it, going to have to keep tinkering.

Mentioned in SAL (#wikimedia-sre) [2023-01-25T15:43:34Z] <robh> netbios wins disabled on db1140 ilom and ilom reset T327877

Mentioned in SAL (#wikimedia-sre) [2023-01-25T15:50:22Z] <robh> db1139 ilom wins/netbios disabled and ilom reset T327877

Arzhel linked to some docs and commented netbios is called wins in HP ilom, and I had noticed the wins enablement under IPv4 so disabled and the issue went away for db1140. Going to disable on the rest of them.

• login to https interface
• navigate to ilom dedicated port ipv4 settings and disable WINs at bottom of page and apply
• navigate to home, diagnotics, reset ilom

I've now done this for all the hosts listed, watching them all resolve off sending the netbios/wins traffic via the logstash view for each host (just changed the source IP from earlier link)