DNS Overview

How-To:

• Set The Default DNS Servers

• Start/Stop The Local DNS Recursive Resolver
• Flush The Local DNS Recursive Resolver

• Start/Stop An Iterative DNS Server
• Flush An Iterative DNS Server
• Remove An Iterative DNS Server From an IP Address
• Restart An Iterative DNS Server From an IP Address
• Install An Iterative DNS Server on an IP Address

The following procedures explain how to set the default (primary, secondary, and tertiary) DNS servers on an InterWorx Control Panel server.

1. Click the System Services menu item if it is not already open.
2. Click the DNS Server menu item if it is not already open.
3. Click the Overview menu item.
4. Locate the Default DNS Servers section.
5. Enter the new Primary DNS server in the Primary DNS field.
6. Enter the new Secondary DNS server in the Secondary DNS field.
7. If you wish to add a tertiary DNS server, enter the name of the tertiary DNS sever in the Tertiary DNS field.
8. Click the Update button.
9. You will see the following message at the top of the screen: Settings updated successfully.

The following procedure explains how to set the DNS zone values such as refresh time, retry time, expiration time, and minimum TTL.

1. Click the System Services menu item if it is not already open.
2. Click the DNS Server menu item if it is not already open.
3. Click the Overview menu item.
4. Locate the Zone Defaults section.
5. Update the values you wish to change.
6. Click the Update button in the Zone Defaults section.
7. You will see the following message at the top of the screen: Settings updated successfully.

The amount of time in seconds between a successful check on the serial number on the zone of the primary DNS and the next attempted check.

The amount of time in seconds to wait before retrying a failed refresh attempt.

The amount of time in seconds for refresh and retry attempts before the DNS server will stop serving the zone.

How often a DNS server checks back for changes to existing DNS records. This can be changed on a per A Record basis.

The following procedure explains how to Start/Stop the Local DNS Recursive Resolver.

1. Click the System Services menu item if it is not already open.
2. Click the DNS Server menu item if it is not already open.
3. Click the Overview menu item.
4. Locate the Active DNS Services (Recursive / Local Resolver) section.
5. Click the checkbox next to the IP you want to update (normally 127.0.0.1)
6. Select Start or Stop from the dropdown menu below the IP list depending on what you want to do.
7. The page will reload. You will see the following message at the top of the screen: Settings updated successfully.

1. Click the System Services menu item if it is not already open.
2. Click the DNS Server menu item if it is not already open.
3. Click the Overview menu item.
4. Locate the Active DNS Services (Recursive / Local Resolver) section.
5. Click the checkbox next to the IP you want to update (normally 127.0.0.1)
6. Select Flush from the dropdown menu below the IP list.
7. The page will reload. You will see the following message at the top of the screen: Settings updated successfully.

1. Click the System Services menu item if it is not already open.
2. Click the DNS Server menu item if it is not already open.
3. Click the Overview menu item.
4. Locate the Active DNS Services (Iterative) section.
5. Click the checkbox next to the IP you want to update.
6. Select Start or Stop from the dropdown menu below the IP list depending on what you want to do.
7. The page will reload. You will see the following message at the top of the screen: Settings updated successfully.

1. Click the System Services menu item if it is not already open.
2. Click the DNS Server menu item if it is not already open.
3. Click the Overview menu item.
4. Locate the Active DNS Services (Iterative) section.
5. Click the checkbox next to the IP you want to update.
6. Select Flush from the dropdown menu below the IP list.
7. The page will reload. You will see the following message at the top of the screen: Settings updated successfully.

1. Click the System Services menu item if it is not already open.
2. Click the DNS Server menu item if it is not already open.
3. Click the Overview menu item.
4. Locate the Active DNS Services (Iterative) section.
5. Click the checkbox next to the IP you want to update.
6. Select Remove from the dropdown menu below the IP list.
7. The page will reload. You will see the following message at the top of the screen: Settings updated successfully.

1. Click the System Services menu item if it is not already open.
2. Click the DNS Server menu item if it is not already open.
3. Click the Overview menu item.
4. Locate the Active DNS Services (Iterative) section.
5. Click the checkbox next to the IP you want to update.
6. Select Restart from the dropdown menu below the IP list.
7. The page will reload. You will see the following message at the top of the screen: Settings updated successfully.

1. Click the System Services menu item if it is not already open.
2. Click the DNS Server menu item if it is not already open.
3. Click the Overview menu item.
4. Locate the IP Addresses Without DNS Services section.
5. Click the checkbox next to the IP you want to update.
6. Select restart from the dropdown menu below the IP list.
7. The page will reload. You will see the following message at the top of the screen: Settings updated successfully.