8 Čen
2018
8 Čen
'18
14:11
Hi Klaus,
Knot DNS always sends NOTIFY over TCP. It's intentional, because UDP is unreliable.
Unfortunately, it's not possible to easily switch to UDP :-/
Regards,
Daniel
On 06/08/2018 12:54 PM, Klaus Darilion wrote:
Hi!
One of our customers uses Knot 2.6.7 as hidden master which sends
NOTIFYs to our slave service. He reported that Knot can not send the
NOTIFYs, ie:
knotd[10808]: warning: [example.com.] notify, outgoing,
2a02:850:8::6@53: failed (connection reset)
It seems that Knot sometimes tries to send the NOTIFY with TCP (I see
also NOTIFYs via UDP). Unfortunatelly our NOTIFY-receiver only supports UDP.
So, this is the first time seeing a name server sending NOTIFYs over
TCP. Is this a typical behavior in Knot? Can I force Knot to send
NOTIFYs always over UDP?
Thanks
Klaus