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by INTPenis
1461 days ago
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I can immediately both agree and disagree with their first point, Learn once. I recently upgraded to a new router hw, which meant scrapping my old OpenBSD 6 and jumping straight to OpenBSD 7.1. One of the tasks was actually to renew all my old rules that had been hanging around from much older releases. While doing this I noticed my old rules referenced lo as the loopback IF, but it's clearly called lo0. Anyways, that was just one tiny detail. But I must say the rules did work out of box with 7.1, nat, port forwardings and openings all worked. All I did was set skip on lo so maybe it didn't matter so much. And maybe I can reference lo* with lo? Not sure. Either way the handbook is what backs up point 1. Sure when you search for an issue in OpenBSD your search results are miniscule compared to Linux, but on the other hand there are no out of date guides or documentation sites, it's all in the handbook. The final say so for all things OpenBSD. That is definitely a strength. But I don't think you can say that OpenBSD is completely immutable. |
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You were using interface groups. The loopback interface, lo0 is a part of the lo interface group.
https://man.openbsd.org/ifconfig#group
When upgrading avoid long jumps, and always read the upgrade guides, they cover important changes between releases.