Overview
DNS (Domain Name Server) lookup resolves domain names/hostnames into the corresponding IP address and retrieves particular information from the target domain.
Example: MX record, etc.
This article guides you on how to perform the process of DNS lookup in GFI LanGuard.
Process
- Launch GFI LanGuard.
- Click Utilities and select DNS lookup in the left pane under Tools.
- Specify the hostname to resolve in Hostname/IP to resolve.
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Under Common Tasks in the left pane, click Edit DNS lookup Options or click Options on the right pane and specify the information described below:
| Option | Description |
| Basic Information | Retrieves the hostname and the relative IP address. |
| Host Information (HINFO) | Retrieves HINFO details. It includes target computer information such as hardware specifications and OS (Operating System) details. |
| Aliases | Retrieves information on the ‘A Records’ configured on the target domain. |
| MX (Mail Exchange) Records | Enumerate all the mail servers and the order or priority in which they receive and process emails for the target domain. |
| NS (Name Server) Records | Specify the name–servers that are authoritative for a particular domain or subdomain. |
NOTE: Some DNS entries do not contain certain information for security reasons.
- OPTIONAL: Specify the alternative DNS server to be queried by the DNS lookup tool or leave as default to use the default DNS server.
- Click Retrieve to start the process.