Hello, I suspect either filesystem permission or SELinux issue. Please check that /var/lib/knot (or whatever directory you used) is write-able by knot user and that command "ausearch -m avc" does not report any SELinux AVCs.

Hello, Since Knot 2.4.0 zone timers database is required (not optional). Could you purge the timers and confdb and start the server with the textual configuration only? Have you built the package with the embedded LMDB or is an external LMDB available? We know users running the latest Knot successfully. Daniel On 02/27/2017 10:32 AM, Abdulkareem H. Ali wrote: > Hi All, > > I built Knot 2.4.1 rpm and tried it on CentOS7. The server isn't reading > any of our zones with an error of: > > "failed to load persistent timers (invalid parameter)" > > Therefore it won't accept any notifies form master and won't read or > transfer any zone. Even when I do "knotc refresh ZONE" it will fail > saying zone is unknow. > > This is an upgrade from Knot 2.2, and same configs doesn't complain > about anything and the server starts fine using that version, and load > zones, and respond to DNS queries without a problem. > > I tried to find a procedure for a first time install for Knot and see if > there is any required initialization that needs to be done but no luck. > > Have anyone tried Knot 2.4.1 with CentOS 7 please and successfully had > it running? > > Note that I tried: > > knotc conf-check (responds with: Configuration is valid) > > knotc conf-read (shows all zones and template configs being read and > doesn't show any warning or error) > > knotc conf-init > knotc conf-import /etc/knot/knot.conf > > Either one of those will generate confdb. However, conf-init generates > it but then Knot doesn't show anything in the logs (set to debug), but > does generate timers folder. > > But conf-import show same logs with same errors above, and still won't > load any of our zones. > > I'm using these template settings: > > "" > mod-rrl: > - id: default > rate-limit: 200 # Allow 200 resp/s for each flow > slip: 2 # Every other response slips > > template: > - id: default > storage: /var/lib/knot/zones > journal-db: journals > timer-db: timers > zonefile-sync: 60 > semantic-checks: on > global-module: mod-rrl/default > "" > > I'd appreciate any suggestion please. > > I'm new to this list, so if this is not where I was suppose to send this > please accept my apologize. > > > Thanks, > Kareem.

For the record, I've got private message that the build from COPR fixed the problem.