DNS seeds

[joelao95]

I am looking at the guide of bitcoin-seeder

https://github.com/sipa/bitcoin-seeder

Here is confusing to me:

Assuming you want to run a dns seed on dnsseed.example.com, you will
need an authorative NS record in example.com's domain record, pointing
to for example vps.example.com:

$ dig -t NS dnsseed.example.com

;; ANSWER SECTION
dnsseed.example.com.   86400    IN      NS     vps.example.com.

I know how to set up name server and the web, but rather confusing about "an authorative NS record in example.com's domain record, pointing
to for example vps.example.com"? So dnsseed.example.com points to vps.example.com? Is this necessary, why don't we simply use vps.example.com? Someone can help me this out? Thx.

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[micryon]

to for example vps.example.com"? So dnsseed.example.com points to vps.example.com? Is this necessary, why don't we simply use vps.example.com? Someone can help me this out? Thx.

I actually don't know the answer to why this is the case exactly, but yes you have to do it in order for dnsseed to work: you can't just point your dns to the hostname, you need to setup your nameserver to point to the host,  in your DNS zone file.  I had always assumed that this was because DNS protocol going through a separate top level nameserver network.

But anyways in practice, you don't need to know why (thankfully).. So for godaddy, i edit DNS zone file: And then under hostnames I add dnshost to an IP address that will be hosting the DNS seed..  then add nameserver to  Dnsseed.example.org to point to host dnshost. 

Btw I also have to disable bind9 default DNS servers on your VPS server if using ubuntu..

[cryptowho]

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[bee7]

I am looking at the guide of bitcoin-seeder

https://github.com/sipa/bitcoin-seeder

Here is confusing to me:

Assuming you want to run a dns seed on dnsseed.example.com, you will
need an authorative NS record in example.com's domain record, pointing
to for example vps.example.com:

$ dig -t NS dnsseed.example.com

;; ANSWER SECTION
dnsseed.example.com.   86400    IN      NS     vps.example.com.

I know how to set up name server and the web, but rather confusing about "an authorative NS record in example.com's domain record, pointing
to for example vps.example.com"? So dnsseed.example.com points to vps.example.com? Is this necessary, why don't we simply use vps.example.com? Someone can help me this out? Thx.

the ' vps.example.com' acts as a nameserver for the zone 'dnsseed.example.com'

The zone 'dnsseed.example.com' is handled by the dnsseed program that you have to run on the vps.example.com host. Of course, you also need the A resource record to map vps.example.com to its IP address.

Hope this helps
1DowEKKjNyYQctiBskf39QB93KfWwZ4ojQ

[joe@exor]

I am looking at the guide of bitcoin-seeder

https://github.com/sipa/bitcoin-seeder

Here is confusing to me:

Assuming you want to run a dns seed on dnsseed.example.com, you will
need an authorative NS record in example.com's domain record, pointing
to for example vps.example.com:

$ dig -t NS dnsseed.example.com

;; ANSWER SECTION
dnsseed.example.com.   86400    IN      NS     vps.example.com.

I know how to set up name server and the web, but rather confusing about "an authorative NS record in example.com's domain record, pointing
to for example vps.example.com"? So dnsseed.example.com points to vps.example.com? Is this necessary, why don't we simply use vps.example.com? Someone can help me this out? Thx.

I realize this is a very old thread, but I don't feel a definite answer was ever given. The best and easiest way that I have found to create the authorative NS record is to first create an "A" record that points to your vps/server ip address and then create an NS record that points to the "A" record that you just created.

Example:

Code:

A ......... vps.example.com ............... 54.127.43.199
NS ........ dnsseed.example.com ........... vps.example.com

That's all you need to do for the DNS setup. You don't have to wait for propagation or anything like that either, you can go straight into installing and running the DNS seeder, which shouldn't have a problem (with the DNS setup) after this point.

Earlier this year I wrote a step-by-step guide that covers the entire setup process, which includes detailed steps for doing the DNS setup and installing and using the DNS seeder software. I even ended up improving the original bitcoin-seeder app and morphed it into a generic-seeder. It adds new optional features, some small fixes and most importantly, you no longer have to edit the source code to get it to work with your altcoin because all the common variables that change across altcoins have been separated into a config file for easy configuration.

Read more here: https://bitcointalk.org/index.php?topic=5239304.0