Following up on comment #14, this bug (ISC-Bugs #36978) seems to have been fixed in ISC DHCP upstream version 4.3.2 [1]:
" - Enhance the PARANOIA patch to include fchown() the lease file to
allow it to be manipulated after the server does a chown().
Thanks to Jiri Popelka at Red Hat for the patch.
[ISC-Bugs #36978]
"
Following up on comment #14, this bug (ISC-Bugs #36978) seems to have been fixed in ISC DHCP upstream version 4.3.2 [1]:
" - Enhance the PARANOIA patch to include fchown() the lease file to
allow it to be manipulated after the server does a chown().
Thanks to Jiri Popelka at Red Hat for the patch.
[ISC-Bugs #36978]
"
[1] https:/ /fossies. org/diffs/ dhcp/4. 3.2_vs_ 4.3.3/RELNOTES- diff.html