^(\w{3} [ :0-9]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ knot\[[[:digit:]]+\]: info: \[[[:alnum:].-]+\] DNSSEC, signing started$
^(\w{3} [ :0-9]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ knot\[[[:digit:]]+\]: info: \[[[:alnum:].-]+\] DNSSEC, signing zone$
^(\w{3} [ :0-9]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ knot\[[[:digit:]]+\]: info: \[[[:alnum:].-]+\] DNSSEC, successfully signed$
+^(\w{3} [ :0-9]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ knot\[[[:digit:]]+\]: info: \[[[:alnum:].-]+\] DNSSEC, incrementally signed$
^(\w{3} [ :0-9]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ knot\[[[:digit:]]+\]: info: \[[[:alnum:].-]+\] DNSSEC, ZSK rollover started$
^(\w{3} [ :0-9]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ knot\[[[:digit:]]+\]: info: \[[[:alnum:].-]+\] IXFR, incoming, remote [[:xdigit:].:]+@53, finished, 0.[[:digit:]]+ seconds, [[:digit:]]+ messages, [[:digit:]]+ bytes$
^(\w{3} [ :0-9]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ knot\[[[:digit:]]+\]: info: \[[[:alnum:].-]+\] IXFR, incoming, remote [[:xdigit:].:]+@53, receiving AXFR-style IXFR$