host

The host command is a powerful utility that’s used for DNS-related tasks in Linux systems. It is primarily used to perform DNS lookups, translating domain names into IP addresses, and vice versa. The importance of the host command lies in its role as a versatile tool for network administrators and developers to resolve DNS queries and troubleshoot domain resolution issues. By using the host command, administrators can verify if a domain name is correctly mapped to an IP address and vice versa, ensuring proper communication between devices across the internet. Additionally, the host command provides information about DNS records, such as the authoritative name server for a domain, time-to-live (TTL) values, and mail exchange (MX) records, aiding in DNS configuration and debugging tasks. The host command is commonly used in various scenarios, such as checking DNS propagation after domain changes, diagnosing DNS resolution problems, and verifying domain name configurations...