Hi,
> How would one go about converting from PowerDNS to KnotDNS on an active
> realtime AnyCast DNS network with maximum seamless efficiency or minimal temporary
> disruption of services to existing DNS users?
>
If it's truly anycast it should only be easier, I would simply:
- stop announcing the anycasted prefix at node #1
- once you see no queries anymore: convert and test
- after finishing: switch on routing
- repeat untill node #last
Unless you have bizarre performance complications, above would be more safe than converting an active node.
Did I maybe misunderstand the question? Or did you mean:
"how to convert from pdns with a transactional SQL backend to a conventional DNS setup with Knot" ..?
Leo
Hello All,
I've decided to use Knot DNS as secondary nameserver for my local zone.
I have several subnets connected via VPN and they have their own
nameservers. So, there are records in my zone
zu-gw.vpn.mithril. 3600 IN A 172.19.0.6
zu.mithril. 3600 IN NS zu-gw.vpn.mithril.
and I want to resolve domain in zu.mithril:
BIND (master):
# dig @tessa.mithril melissa.zu.mithril
; <<>> DiG 9.8.3-P4 <<>> @tessa.mithril melissa.zu.mithril
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7626
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
;; QUESTION SECTION:
;melissa.zu.mithril. IN A
;; ANSWER SECTION:
melissa.zu.mithril. 0 IN A 172.19.3.1
;; AUTHORITY SECTION:
zu.mithril. 3600 IN NS zu-gw.vpn.mithril.
;; ADDITIONAL SECTION:
zu-gw.vpn.mithril. 3600 IN A 172.19.0.6
;; Query time: 143 msec
;; SERVER: 172.19.37.1#53(172.19.37.1)
;; WHEN: Wed Jan 14 19:24:27 2015
;; MSG SIZE rcvd: 92
KNOT (secondary):
# dig @mira.mithril melissa.zu.mithril
; <<>> DiG 9.8.3-P4 <<>> @mira.mithril melissa.zu.mithril
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10182
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; WARNING: recursion requested but not available
;; QUESTION SECTION:
;melissa.zu.mithril. IN A
;; AUTHORITY SECTION:
zu.mithril. 3600 IN NS zu-gw.vpn.mithril.
;; ADDITIONAL SECTION:
zu-gw.vpn.mithril. 3600 IN A 172.19.0.6
;; Query time: 0 msec
;; SERVER: 172.19.38.2#53(172.19.38.2)
;; WHEN: Wed Jan 14 19:24:51 2015
;; MSG SIZE rcvd: 76
I understand that it's happening because of recursion in bind, but how
can I solve this problem in knot?
--
With best regards,
Eugene Bolshakoff
How would one go about converting from PowerDNS to KnotDNS on an active realtime AnyCast DNS network with maximum seamless efficiency or minimal temporary disruption of services to existing DNS users?
