Dynamic DNS issue

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Nephew_

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I discovered an issue on the Afrihost Dynamic DNS, where you use my_user.ip.afrihost.co.za to get your current public IP address.
It is intermittently working. Sometimes getting NXdomain.
Digging a bit deeper it looks like it is one of the authoritative DNS servers which has an issue.
Getting the auth DNS for this
$ host -t ns ip.afrihost.co.za.
ip.afrihost.co.za name server rv.dns2.co.za.
ip.afrihost.co.za name server rv.dns1.co.za.

DNS2 responds with not found
$ host -t a my_user.ip.afrihost.co.za. rv.dns2.co.za.
Address: 154.0.174.200#53
Host my_user.ip.afrihost.co.za. not found: 3(NXDOMAIN)

DNS2 server responds correctly:

$ host -t a my_user.ip.afrihost.co.za. rv.dns1.co.za.
my_user.ip.afrihost.co.za has address 169.0.100.xxx

This started 03 Feb 13:00
Ticket: DHZ-766-53060
 
Nephew_ said:
I discovered an issue on the Afrihost Dynamic DNS, where you use my_user.ip.afrihost.co.za to get your current public IP address.
It is intermittently working. Sometimes getting NXdomain.
Digging a bit deeper it looks like it is one of the authoritative DNS servers which has an issue.
Getting the auth DNS for this
$ host -t ns ip.afrihost.co.za.
ip.afrihost.co.za name server rv.dns2.co.za.
ip.afrihost.co.za name server rv.dns1.co.za.

DNS2 responds with not found
$ host -t a my_user.ip.afrihost.co.za. rv.dns2.co.za.
Address: 154.0.174.200#53
Host my_user.ip.afrihost.co.za. not found: 3(NXDOMAIN)

DNS2 server responds correctly:

$ host -t a my_user.ip.afrihost.co.za. rv.dns1.co.za.
my_user.ip.afrihost.co.za has address 169.0.100.xxx

This started 03 Feb 13:00
Ticket: DHZ-766-53060
Click to expand...
Hello.

Which DNS Servers are you using on your internet connection? nxdomain is when DNS servers are unable to lookup a domain name for whatever reason.
 
afrihost has Dynamic DNS ?
where do I enable this ?
 
Ninja said:
afrihost has Dynamic DNS ?
where do I enable this ?
Click to expand...
we have built in Dynamic DNS. fibre/adsl username.ip.afrihost.co.za. it is enabled by default.

Enabled for all subscribers excluding LTE/Mobile, Vuma Reach, Openserve Webconnect.
 
Afrigirl said:
Hello.

Which DNS Servers are you using on your internet connection? nxdomain is when DNS servers are unable to lookup a domain name for whatever reason.
Click to expand...
I am using my own DNS.
But I am pointing you out where your issue is.

Testing other DNS, you will also this. (note it is intermittent)

$ host -t a username.ip.afrihost.co.za. 8.8.4.4
Host username.ip.afrihost.co.za. not found: 3(NXDOMAIN)
 
Nephew_ said:
I am using my own DNS.
But I am pointing you out where your issue is.

Testing other DNS, you will also this. (note it is intermittent)

$ host -t a username.ip.afrihost.co.za. 8.8.4.4
Host username.ip.afrihost.co.za. not found: 3(NXDOMAIN)
Click to expand...

We are investigating.
 
AfriNatic said:
We are investigating.
Click to expand...

The issue should now be resolved.

We have multiple servers all over SA and EU which we run on our name servers for redundancy purposes.

One of these is still down due to the issues they are facing with ransomeware and uncached queries had a 50/50 chance of being served from it. We pulled it now and just waiting for the TTL to expire and the issue should be resolved.

Thanks for bringing this up with us. Sorry for the issues experienced.
 
Thanks so much, it seems solved now. My home IP was 50% up :) it seems to rotate between the servers every time the TTL expired

Appreciate the quick action.
 
AfriNatic said:
The issue should now be resolved.

We have multiple servers all over SA and EU which we run on our name servers for redundancy purposes.

One of these is still down due to the issues they are facing with ransomeware and uncached queries had a 50/50 chance of being served from it. We pulled it now and just waiting for the TTL to expire and the issue should be resolved.

Thanks for bringing this up with us. Sorry for the issues experienced.
Click to expand...
So no proactive dynamic reallocation of DNS requests bypassing non-functional servers? Reactive based on customer complaints? No exactly best technical practice.
 
Nephew_ said:
Thanks so much, it seems solved now. My home IP was 50% up :) it seems to rotate between the servers every time the TTL expired

Appreciate the quick action.
Click to expand...
The need for the human intervention/action is what is the real problem. Redundancy it supposed to be (best industry practise) preprogrammed into the system.
 
zulu53 said:
So no proactive dynamic reallocation of DNS requests bypassing non-functional servers? Reactive based on customer complaints? No exactly best technical practice.
Click to expand...

It should have but we had an RSAWeb IP in the mix that was down and causing intermittent connections to the afrihost.co.za domain. Out of like 15 requests or so one would fail.
 
Very interesting.

Is this wild carded so I could use it with sub-domains?
 
Would have been nice to be told about this long ago, but im so used to renewing my free no-ip dynamic dns account every month.

Too late, she cried.
 
Rickster said:
Would have been nice to be told about this long ago, but im so used to renewing my free no-ip dynamic dns account every month.

Too late, she cried.
Click to expand...

Yeah I just use DuckDNS with Letsencrypt but this will be awesome for helping out my mom and sister.
 
No f***ing way man.

Here I was, setting up a new home NAS, trying to figure out why the noip dynamic update client wasn't working properly. Looked/Googled/debugged for like an hour and then figured out something was "off" on ISP side.

Literally had a tab open and was typing out a PM to afriguy/afrigirl... and then figured I should Google it before sending the message.

So all along, I've had a dynamic dns hostname pointed to my house? Afrihost really is fantastic.

Rickster said:
Would have been nice to be told about this long ago, but im so used to renewing my free no-ip dynamic dns account every month.
Click to expand...
They really should. I've been refreshing my noip hostname for 5 years now.
 
Dylan_G said:
Hmm, okay so normal traffic is working using Afrihost's fancy DNS thing, but I can't seem to get wireguard set up.

@AfriGuy @Afrigirl is there something special that needs to be done for me to use <username>.ip.afrihost.co.za for wireguard?

I saw a lot of requests for public IPs in this thread: https://mybroadband.co.za/forum/thr...possible-on-afrihost-shared-ip.1129340/page-2
Click to expand...
Please drop me a PM with your account number or email address so I can check which IP type do you have.
 
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