Setting kern.securelevel to 1 makes the kernel to enforce the system-level immutable and append-only flags (see chflags(1/2)). Unless you do something extra, syslogd will create new files without these flags and newsyslog will rotate them as expected.
Hope that helps, Paweł. > On 24 Oct 2023, at 12:19, void <v...@f-m.fm> wrote: > > Hi, > > I'd like to set append-only on an arm64 system running stable/14-n265566 > (so securelevel=1) but how would newsyslog(8) handle it? How will it rotate > logs? > > -- >