Hi Patrick, On 10/02/2020 14:27, Patrick M. Hausen via Unbound-users wrote: > Hi! > > >> Am 10.02.2020 um 14:18 schrieb Daniel Ryšlink <rysl...@dialtelecom.cz>: >> After that, increase debug level and check the debug log to see how the >> queries are processed - if the server fails, the debug log should contain >> exact infromation why it happens. > > Can one increase the debug level for the already running process like > "rndc trace" for a running BIND named?
unbound-control can modify the running process. unbound-control verbosity 5 logs at high detail. Best regards, Wouter > > The problem arises very infrequently, so we did not want to have > the debug log active permanently on all hosts (about 100 of them). > Yet, once one of the unbound processes shows the problem, our > Icinga will alarm us, so we can investigate ... > > Thanks, > Patrick >