Re: help for DNS queries

> 
> 
> On Mon, Aug 5, 2019, at 06:50, Paulina wrote:
>>
>> I have been using a cloud host, it seems I have a unnormal DNS resolver
>> entry:
> 
> And what exactly is unnormal in:
> 
>> nameserver 127.0.0.53
>> options edns0
> 
> ???

Sorry my mistake.
After checking the documents I just know what's the difference between 
Caching server and auth-server for DNS queries.
So it seems I am using a caching server whose IP addr is 127.0.0.53.
But isn't this addr a loopback IP? I was not sure about it.
I was thinking the caching server should be 8.8.8.8 etc.

> 
>> (base) pyh@ubuntu-18:~$ dig google.com.hk
>>
>> ; <<>> DiG 9.11.3-1ubuntu1.5-Ubuntu <<>> google.com.hk
>> ;; global options: +cmd
>> ;; Got answer:
>> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58759
>> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
>>
>> ;; OPT PSEUDOSECTION:
>> ; EDNS: version: 0, flags:; udp: 65494
>> ;; QUESTION SECTION:
>> ;google.com.hk.                 IN      A
>>
>> ;; ANSWER SECTION:
>> google.com.hk.          22      IN      A       172.217.31.131
>>
>> ;; Query time: 1 msec
>> ;; SERVER: 127.0.0.53#53(127.0.0.53)
>> ;; WHEN: Mon Aug 05 19:48:49 CST 2019
>> ;; MSG SIZE  rcvd: 58
>>
>>
>> Can you help with it? thanks in advance.
> 
> Help with what exactly? What is wrong with this DNS reply for you?
> Seems totally legit.
> 

what the helps I asked is that this server (127.0.0.53) returns many 
timeout during my modperl querying process.

I think I may ask the sysadmin to add more caching servers and make them 
have good network connection with internet, am I right?

thanks & regards.
Paulina