Domain registrars & DNS servers Post: 302959579

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Operating Systems Linux Domain registrars & DNS servers Post 302959579 by cjcox on Wednesday 4th of November 2015 03:33:04 PM

11-04-2015

Registered User

Think of nameservers as something different (but not necessarily) from your domain.

It's the DNS that holds the zone data for your somedomain.com. To make that official as far as the Internet goes that's why they are asking where your records go... that is what nameservers house the records.

Anymore unless the company is sizable, I chose to use a world wide redundant DNS service (multiple DNS servers with redundance) to house records for a domain (e.g. DNSMadeEasy for example). But as I alluded to earlier you can certainly host your own DNS server(s) (they like for you to have more than one if possible).

When DNS queries are made, ulimately thigns work from the root server down to the tld's etc... and along those paths, your case .com knows who (what DNS servers) stands authoritative for somedomain.com.

With that said, you or anyone else can choose to point to a DNS that "says" it stands authoritative for records for whoever (somedomain.com, mil.gov, etc)... if if that is your DNS that your pointing to you'll get back whatever name to IP (etc) that you have defined there.

Hope that wasn't too confusing.

Maybe another example. The Whitepages is a phone book. I could print my own phone book and change anyone's phone number I want. But this doesn't work at large because chances are people are using the official whitepages and not my hacked up copy.

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LEARN ABOUT MOJAVE

curlopt_dns_local_ip4

CURLOPT_DNS_LOCAL_IP4(3)				     curl_easy_setopt options					  CURLOPT_DNS_LOCAL_IP4(3)

NAME

       CURLOPT_DNS_LOCAL_IP4 - IPv4 address to bind DNS resolves to

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_LOCAL_IP4, char *address);

DESCRIPTION

       Set  the  local	IPv4  address  that the resolver should bind to. The argument should be of type char * and contain a single numerical IPv4
       address as a string.  Set this option to NULL to use the default setting (don't bind to a specific IP address).

       The application does not have to keep the string around after setting this option.

DEFAULT

       NULL

PROTOCOLS

       All

EXAMPLE

       TODO

AVAILABILITY

       This option requires that libcurl was built with a resolver backend that supports this operation. The c-ares backend is the only such one.

       Added in 7.33.0

RETURN VALUE

       Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, CURLE_NOT_BUILT_IN if support was disabled  at  compile-time,	or
       CURLE_BAD_FUNCTION_ARGUMENT when given a bad address.

SEE ALSO

       CURLOPT_DNS_INTERFACE(3), CURLOPT_DNS_LOCAL_IP4(3),

libcurl 7.54.0							 December 21, 2016					  CURLOPT_DNS_LOCAL_IP4(3)