The “dog” command is a DNS lookup utility that provides various features and enhancements compared to traditional DNS lookup tools. It is designed to simplify and enhance the process of performing DNS lookups and offers additional capabilities for working with DNS-related queries. Here are some key features of the “dog” command:
- DNS lookup: The primary function of “dog” is to perform DNS lookups. It allows you to query DNS servers to retrieve information about domain names, such as IP addresses, MX records, TXT records, and more. This is useful for troubleshooting network issues, checking DNS configurations, and gathering information about domain names.
- Colorful output: One notable feature of “dog” is its colorful output. It provides a visually appealing representation of DNS query results, highlighting different sections of the output to improve readability and comprehension.
- DNS-over-TLS (DoT) support: “dog” supports DNS-over-TLS, which is a security protocol that encrypts DNS traffic between the client and the DNS server. By leveraging DoT, “dog” ensures that DNS queries and responses are transmitted securely, preventing eavesdropping and tampering.
- DNS-over-HTTPS (DoH) support: In addition to DoT, “dog” also supports DNS-over-HTTPS, which is another protocol that encrypts DNS traffic using the HTTPS protocol. This allows “dog” to securely communicate with DNS servers over standard HTTPS connections.
- JSON output: “dog” can emit query results in JSON format, which provides a structured representation of the DNS responses. This makes it easier to integrate “dog” with other tools or scripts that can process JSON data, enabling automation and further analysis of the DNS results.
The “dog” command is a versatile tool that enhances the traditional DNS lookup process by offering features like colorful output, support for DNS-over-TLS and DNS-over-HTTPS protocols, and the ability to emit JSON. These features make it a powerful utility for DNS troubleshooting, security, and automation.
Please note that the specific functionalities and options of the “dog” command may vary based on the version and implementation you are using. It is always recommended to refer to the official documentation or run the command with the “–help” flag to obtain the most up-to-date information and usage instructions for the “dog” command.
dog Command Examples
1. Lookup the IP(s) associated with a hostname (A records):
# dog example.com
2. Query the MX records type associated with a given domain name:
# dog example.com MX
3. Specify a specific DNS server to query (e.g. Cloudflare):
# dog example.com MX @18.104.22.168
4. Query over TCP rather than UDP:
# dog example.com MX @22.214.171.124 --tcp
5. Query the MX records type associated with a given domain name over TCP using explicit arguments:
# dog --query example.com --type MX --nameserver 126.96.36.199 --tcp
6. Lookup the IP(s) associated with a hostname (A records) using DNS over HTTPS (DoH):
# dog example.com --https @https://cloudflare-dns.com/dns-query