On 17 Apr 2018, at 10:27, R P ronenp@hotmail.com wrote:
Hi I have entered new ddns.net name to one of the gateways i have installed and while pressing the save button got "unable to resolve host" error The name is resolvable ... Is the Portal lazy ? Any info is welcome Ronen - 4Z4ZQ
Looks like ddns.net does not update all it’s authoritative servers at the same time, this is from the portal server:
[chris@portal ~]# nslookup gilboa-gw.ddns.net Server: 192.168.1.1 Address: 192.168.1.1#53
Non-authoritative answer: *** Can't find gilboa-gw.ddns.net: No answer
[chris@portal ~]# dig ddns.net ns
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> ddns.net ns ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21964 ;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 7
;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;ddns.net. IN NS
;; ANSWER SECTION: ddns.net. 19616 IN NS nf5.no-ip.com. ddns.net. 19616 IN NS nf2.no-ip.com. ddns.net. 19616 IN NS nf1.no-ip.com. ddns.net. 19616 IN NS nf4.no-ip.com. ddns.net. 19616 IN NS nf3.no-ip.com.
;; ADDITIONAL SECTION: nf1.no-ip.com. 4789 IN A 50.31.129.129 nf1.no-ip.com. 5 IN AAAA 2001:1838:f002::129 nf2.no-ip.com. 688 IN A 165.254.162.241 nf3.no-ip.com. 16855 IN A 69.65.40.108 nf4.no-ip.com. 10583 IN A 50.31.129.129 nf5.no-ip.com. 1719 IN A 50.31.129.129
;; Query time: 3 msec ;; SERVER: 192.168.1.1#53(192.168.1.1) ;; WHEN: Tue Apr 17 09:47:38 UTC 2018 ;; MSG SIZE rcvd: 244
[chris@portal ~]# dig @nf1.no-ip.com gilboa-gw.ddns.net a
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> @nf1.no-ip.com gilboa-gw.ddns.net a ; (2 servers found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8921 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;gilboa-gw.ddns.net. IN A
;; ANSWER SECTION: gilboa-gw.ddns.net. 60 IN A 109.65.68.149
;; Query time: 15 msec ;; SERVER: 50.31.129.129#53(50.31.129.129) ;; WHEN: Tue Apr 17 09:47:44 UTC 2018 ;; MSG SIZE rcvd: 63
[chris@portal ~]# dig @nf2.no-ip.com gilboa-gw.ddns.net a
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> @nf2.no-ip.com gilboa-gw.ddns.net a ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59618 ;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;gilboa-gw.ddns.net. IN A
;; AUTHORITY SECTION: ddns.net. 1800 IN SOA nf1.no-ip.com. hostmaster.no-ip.com. 2180056495 10800 1800 604800 1800
;; Query time: 80 msec ;; SERVER: 165.254.162.241#53(165.254.162.241) ;; WHEN: Tue Apr 17 09:47:48 UTC 2018 ;; MSG SIZE rcvd: 107
[chris@portal ~]# dig @nf3.no-ip.com gilboa-gw.ddns.net a
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> @nf3.no-ip.com gilboa-gw.ddns.net a ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 9086 ;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;gilboa-gw.ddns.net. IN A
;; AUTHORITY SECTION: ddns.net. 1800 IN SOA nf1.no-ip.com. hostmaster.no-ip.com. 2180211990 10800 1800 604800 1800
;; Query time: 106 msec ;; SERVER: 69.65.40.108#53(69.65.40.108) ;; WHEN: Tue Apr 17 09:47:52 UTC 2018 ;; MSG SIZE rcvd: 107
[chris@portal ~]# dig @nf4.no-ip.com gilboa-gw.ddns.net a
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> @nf4.no-ip.com gilboa-gw.ddns.net a ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 54672 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;gilboa-gw.ddns.net. IN A
;; ANSWER SECTION: gilboa-gw.ddns.net. 60 IN A 109.65.68.149
;; Query time: 17 msec ;; SERVER: 50.31.129.129#53(50.31.129.129) ;; WHEN: Tue Apr 17 09:47:55 UTC 2018 ;; MSG SIZE rcvd: 63
[chris@portal ~]# dig @nf5.no-ip.com gilboa-gw.ddns.net a
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> @nf5.no-ip.com gilboa-gw.ddns.net a ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 56508 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;gilboa-gw.ddns.net. IN A
;; ANSWER SECTION: gilboa-gw.ddns.net. 60 IN A 109.65.68.149
;; Query time: 16 msec ;; SERVER: 50.31.129.129#53(50.31.129.129) ;; WHEN: Tue Apr 17 09:47:58 UTC 2018 ;; MSG SIZE rcvd: 63
The name servers the Portal uses must have queried one of ddns’s name servers that don’t have the A record yet.
Regards, Chris