NSD version 4.11.0 had a serious bug in which applying updates to zones (and other modifications that require a reload, such as adding and deleting zones), could stop entirely after reception of a broken or corrupted update via zone transfer. We believe that this broken state would appear as one of the NSD processes consuming 100% CPU. Version 4.11.1 has this corrected as well as some other smaller non-critical bugs.
We strongly advise to not run NSD version 4.11.0, and if you have it deployed already, upgrade to 4.11.1 at the earliest possible opportunity.
Many thanks to the people at SUNET and netnod (Fredrik and Arvid and all the others) that helped us to get to the bottom of this critical issue!
nsd 4.11.1
BUG FIXES:
- Fix #415: Fix out of tree builds. Thanks Florian Obser (@fobser).
- Fix #414: XoT interoperability with BIND and Knot
- Fix #421: old-main can quit before the reload process received
from old-main that it is done on the reload_listener pipe.
Thanks Otto Retter. - Fix whitespace in comment.
- Fix #424: Stalled updates after corrupt transfer.
simdzone 0.2.1
BUG FIXES: