If Execulink is acting as your DNS host, these are the DNS servers/hosts that should be present in your domain’s WHOIS record:
The WHOIS record for your domain contains the host names for your current DNS servers/hosts.
If Execulink is the Registrar for your domain, send an e-mail to email@example.com with the domain name and the desired DNS hosts. DNS host updates can only be authorized by a valid contact for either the domain or the associated Execulink account.
If Execulink is not the Registrar for your domain, reach out to your current Registrar to find out their process for having DNS host changes completed.
Note: Because changing DNS hosts ultimately changes the DNS servers that are responsible for all of a domain’s DNS records, doing so has the potential to impact all DNS records for that domain, including the MX (mail) record.
To have the DNS records for your domain updated when Execulink is serving as the DNS host, send an e-mail to firstname.lastname@example.org with the specifics, and a member of our Domain Administration team will make the DNS record update(s) for you.
DNS record changes can only be authorized by a valid contact for either the domain or the associated Execulink account. DNS record change requests received from other individuals will not be processed until they have been authorized by a valid contact.
Although DNS updates can appear ‘live’ within a few hours after a DNS record update has been made, it can take up to 48 hours for any change to completely propagate across the net. This interval is often referred to as the DNS propagation period.
During this propagation period, it is not uncommon for some servers to be aware of the recent updates, while others are not.
For example, let’s assume that a domain’s MX (mail) record has just been updated from originalMailHost.execulink.ca to newMailHost.execulink.ca. (Remember, an MX record specifies where e-mail for a domain should be routed.) During the DNS propagation period following that update, it’s not unusual for some mail hosts to route e-mail for that domain to newMailHost.execulink.ca, while others still route e-mail to originalMailHost.execulink.ca. Eventually, once the DNS update has propagated across all servers, all mail hosts should route mail appropriately to newMailHost.execulink.ca as desired.
A DNS lookup allows you to query a DNS server for a specific DNS record for a domain. For example, you could look up the MX (mail) record for a domain, or the ‘WWW’ record, etc.
There are a slew of online DNS lookup tools that can be used. These can be found pretty easily via a simple Google search.
Windows and MAC users can also make use of the nslookup command via the Command Prompt or Terminal programs respectively. Here are a few variations of that command for some of the more common DNS lookups:
Note: We are using execulink.com as our example domain in the commands above. To perform the lookups for a different domain, simply replace execulink.com with the preferred domain.
A zone file is just a technical term for the file that resides on a DNS server that contains the specific DNS records for a domain.