I guess you mean voipgateway.org as root domain, not the '.' domain
above TLDs...
I don't see an issue here. The idea of CNAME is to point to other names.
They don't have to be in the same zone file.
guest1.voipgateway.org points to ws1.voipgateway.org so this is even the
same domain.
Cheers
Till
On 30.11.22 23:50, GA Georgescu wrote:
CNAME on the root domain is not allowed in DNS. Each resolver may yield a
different result when coping to this anomaly.
As a start, just remove it and we can look at what happens afterwards.
Adrian
On 30 Nov 2022, at 14:17, g4-l...@tonarchiv.ch wrote:
It's really strange, right now it's working but I don't know what has changed.
Again I did some network sniffing on port 53 and it seems a bit random how
Blink is reacting to the DNS replies: Sometimes it simply ignores the CNAME
answer to the NAPTR and doesn't send a request for ws1.voipgateway.org.
Sometimes it sends a NAPTR request for ws1.voipgateway.org...
IMHO the same randomness decides if everything works or fails: If it interprets the NAPTR
replies as "contains no answer", then the SRV requests are also sent and
interpreted correctly.
If the first request is mistakenly handled like a timeout, all the other
requests are not sent and the whole process seems to block somewhere.
Some timing issue in the DNS resolve threads?
Cheers
Till
On 30.11.22 15:42, g4-l...@tonarchiv.ch wrote:
Hi
thank you for your replies.
I'm a bit more familiar with DNS than with VOIP... If I get it right the NAPTR
is optional and SIP should work without it.
CNAME can always be a reply to a DNS lookup, it just means: The name you are
looking for is an alias, i.e. guest1.voipgateway.org is a virtual domain. IMHO
Blink does the right thing and sends a second request for ws1.voipgateway.org.
But for ws1.voipgateway.org there's a NAPTR either. The SOA reply only means
that this an authoritative answer.
IMHO the problem comes with the second DNS reply which contains only a SOA.
Blink seams not to handle this and runs into a timeout.
Strangely enough the whole issue doesn't always appear and all works fine
sometimes. Then I get the same log lines like Timen de Mes:
2022-11-30 15:35:49.340913 [blink 2]: DNS lookup NAPTR guest1.voipgateway.org
failed: DNS response contains no answer
2022-11-30 15:35:49.405083 [blink 2]: DNS lookup SRV
_sip._udp.guest1.voipgateway.org failed: DNS record does not exist
2022-11-30 15:35:49.463001 [blink 2]: DNS lookup SRV
_sip._tcp.guest1.voipgateway.org failed: DNS record does not exist
2022-11-30 15:35:59.932458 [blink 2]: DNS lookup SRV
_sips._tcp.guest1.voipgateway.org failed: DNS record does not exist
2022-11-30 15:35:59.960770 [blink 2]: DNS lookup A guest1.voipgateway.org
succeeded, ttl=3600: 212.117.203.57
Best regards
Till
On 30.11.22 12:10, Adrian Georgescu wrote:
$dig cname guest1.voipgateway.org
;; QUESTION SECTION:
;guest1.voipgateway.org. IN CNAME
;; ANSWER SECTION:
guest1.voipgateway.org. 21600 IN CNAME ws1.voipgateway.org.
The CNAME should not be there for the domain name.
—
Adrian
On 30 Nov 2022, at 07:15, Tijmen de Mes <tij...@ag-projects.com> wrote:
Hi,
I looked at it a bit more and the fact that a CNAME is returned could happen.
However in my Blink I can’t reproduce this fault, I used the domain
guest1.voipgateway.org and I could register(?), if I made a call I got a prompt.
This is how my logs look:
1 2022-11-30 10:59:46.901093 [blink 4977]: DNS lookup NAPTR
guest1.voipgateway.org failed: DNS response contains no answer
2 2022-11-30 10:59:46.901540 [blink 4977]: DNS lookup SRV
_sips._tcp.guest1.voipgateway.org failed: DNS record does not exist
3 2022-11-30 10:59:46.901950 [blink 4977]: DNS lookup SRV
_sip._tcp.guest1.voipgateway.org failed: DNS record does not exist
4 2022-11-30 10:59:46.902359 [blink 4977]: DNS lookup SRV
_sip._udp.guest1.voipgateway.org failed: DNS record does not exist
5 2022-11-30 10:59:46.902618 [blink 4977]: DNS lookup A
guest1.voipgateway.org succeeded, ttl=2675: 212.117.203.57
I don’t have the flatpack so I can’t tell you if something is wrong in there.
The lookups are handled by python3-sipsimple.
Best regards,
Timen de Mes
—
AG Projects
Op 30 nov. 2022, om 10:35 heeft Tijmen de Mes <tij...@ag-projects.com> het
volgende geschreven:
Hi,
The fact that you see the timeouts could be a bug.
The problem is that a NAPTR does exist and is a CNAME? I’ve never seen this and
I am not sure this is even valid in DNS.
AFAIK a NAPTR in this case should return something like:
20 100 "s" "SIP+D2U" "" _sip._udp.sip2sip.info.
10 100 "s" "SIP+D2T" "" _sip._tcp.sip2sip.info.
25 100 "s" "SIPS+D2T" "" _sips._tcp.sip2sip.info.
After this a SRV lookup would be done.
Are you able to register your account?
Best regards,
Tijmen de Mes
—
AG Projects
Op 29 nov. 2022, om 17:44 heeft g4-l...@tonarchiv.ch het volgende geschreven:
Hi there
A few days ago I updated my OS to Pop! OS / Ubuntu 22.04 LTS with the Blink
flatpack V5.5.0
A few times it worked flawlessly, but most of the time, starting a call lags a
lot and it simply fails with a beep after a few minutes without any further
message.
The logs shows issues with DNS:
2022-11-29 15:22:37.533993 [blink 2]: DNS lookup NAPTR guest1.voipgateway.org
failed: no DNS response received, the query has timed out
2022-11-29 15:22:37.534465 [blink 2]: DNS lookup SRV
_sip._udp.guest1.voipgateway.org failed: no DNS response received, the query
has timed out
2022-11-29 15:22:37.534699 [blink 2]: DNS lookup SRV
_sip._tcp.guest1.voipgateway.org failed: no DNS response received, the query
has timed out
2022-11-29 15:22:37.534909 [blink 2]: DNS lookup SRV
_sips._tcp.guest1.voipgateway.org failed: no DNS response received, the query
has timed out
2022-11-29 15:22:37.535100 [blink 2]: DNS lookup A guest1.voipgateway.org
failed: no DNS response received, the query has timed out
2022-11-29 15:22:37.637499 [blink 2]: DNS lookup TXT
xcap.guest1.voipgateway.org failed: DNS record does not exist
2022-11-29 15:23:08.049049 [blink 2]: DNS lookup NAPTR guest1.voipgateway.org
failed: no DNS response received, the query has timed out
2022-11-29 15:23:08.049976 [blink 2]: DNS lookup SRV
_sips._tcp.guest1.voipgateway.org failed: no DNS response received, the query
has timed out
2022-11-29 15:23:08.050817 [blink 2]: DNS lookup SRV
_sip._tcp.guest1.voipgateway.org failed: no DNS response received, the query
has timed out
2022-11-29 15:23:08.051510 [blink 2]: DNS lookup SRV
_sip._udp.guest1.voipgateway.org failed: no DNS response received, the query
has timed out
2022-11-29 15:23:08.052161 [blink 2]: DNS lookup A guest1.voipgateway.org
failed: no DNS response received, the query has timed out
2022-11-29 15:23:38.498519 [blink 2]: DNS lookup NAPTR guest1.voipgateway.org
failed: no DNS response received, the query has timed out
2022-11-29 15:23:38.498998 [blink 2]: DNS lookup SRV
_sip._udp.guest1.voipgateway.org failed: no DNS response received, the query
has timed out
2022-11-29 15:23:38.499612 [blink 2]: DNS lookup SRV
_sip._tcp.guest1.voipgateway.org failed: no DNS response received, the query
has timed out
2022-11-29 15:23:38.500547 [blink 2]: DNS lookup SRV
_sips._tcp.guest1.voipgateway.org failed: no DNS response received, the query
has timed out
2022-11-29 15:23:38.501826 [blink 2]: DNS lookup A guest1.voipgateway.org
failed: no DNS response received, the query has timed out
2022-11-29 15:24:08.946267 [blink 2]: DNS lookup NAPTR guest1.voipgateway.org
failed: no DNS response received, the query has timed out
and so on.
But in reality there are no DNS timeouts. IMHO the issue is that Blink doesn't
handle the DNS answers right and then somehow deadlocks on the first NATPR
request.
I did some sniffing on port 53 and there are no DNS requests for SRV:
192.168.178.23 192.168.178.1 DNS 82 Standard query 0x1eab
NAPTR guest1.voipgateway.org
192.168.178.1 192.168.178.23 DNS 162 Standard query
response 0x1eab NAPTR guest1.voipgateway.org CNAME ws1.voipgateway.org SOA
ns1.backbone.ch
192.168.178.23 192.168.178.1 DNS 79 Standard query 0x3a0b
NAPTR ws1.voipgateway.org
192.168.178.1 192.168.178.23 DNS 141 Standard query
response 0x3a0b NAPTR ws1.voipgateway.org SOA ns1.backbone.ch
[ ..nothing concerning VOIP...]
192.168.178.23 192.168.178.1 DNS 82 Standard query 0xb5c0
NAPTR guest1.voipgateway.org
192.168.178.1 192.168.178.23 DNS 162 Standard query
response 0xb5c0 NAPTR guest1.voipgateway.org CNAME ws1.voipgateway.org SOA
ns1.backbone.ch
192.168.178.23 192.168.178.1 DNS 79 Standard query 0x5cba
NAPTR ws1.voipgateway.org
192.168.178.1 192.168.178.23 DNS 141 Standard query
response 0x5cba NAPTR ws1.voipgateway.org SOA ns1.backbone.ch
[ ..nothing concerning VOIP...]
192.168.178.23 192.168.178.1 DNS 82 Standard query 0x63b5
NAPTR guest1.voipgateway.org
192.168.178.1 192.168.178.23 DNS 162 Standard query
response 0x63b5 NAPTR guest1.voipgateway.org CNAME ws1.voipgateway.org SOA
ns1.backbone.ch
192.168.178.23 192.168.178.1 DNS 79 Standard query 0x6dce
NAPTR ws1.voipgateway.org
The queries timeout occurs because Blink does not issue the requests. IMHO
Blink does not handle the SOA replies and somehow deadlocks, so other requests
are never sent.
Instead it should simply return: NAPTR record does not exist. Go on...
Cheers
Till
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