On Tue, Dec 17, 2024 at 3:03 PM Choi yenos <cpg0...@gmail.com> wrote: > > HI all, It seems that the MACAddressPolicy is periodically changing or being > updated on my Ubuntu 22.04 cluster. > > When I create the 22.04 image, I set the file > /usr/lib/systemd/network/99-default.link to MACAddressPolicy=none and > generate the image. > > However, after a certain period of time (24 hours?), the value changes back > to MACAddressPolicy=persistent. Strangely, even though the value has changed, > the date still points to 2022.
/usr/lib is owned by your system package manager, so it can be overwritten on package updates. Use /etc/systemd/network to configure overrides. > > -rw-r--r-- 1 root root 499 Mar 11 2022 > /usr/lib/systemd/network/99-default.link > Is there a specific systemd daemon that might be changing this value? > > As a solution, I can set the �file with a higher priority, but I am curious > about why it is being changed. > ---------------- > [Match] > OriginalName=* > > [Link] > NamePolicy=keep kernel database onboard slot path > AlternativeNamesPolicy=database onboard slot path > MACAddressPolicy=persistent > thank you.
