How to configure Bind as a Caching or Forwarding DNS Server on Ubuntu

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WhoDat1.com offers free DNS propagation check service to check Domain Name System records against a selected list of DNS servers in multiple regions worldwide. DNS propagation inquiries are important so that visitors are able to find web services, mail services, and more. The <span style=\"color: rgb(230, 0, 0);\">RED X<\/span> means the query has NOT been resolved, the <span style=\"color: rgb(0, 138, 0);\">GREEN Check Mark<\/span> the query has been resolved.<\/p>","below_map":"<p><span style=\"color: rgb(55, 65, 81);\">Our free online DNS Propagation Checker tool allows you to verify DNS propagation worldwide. Easily check DNS data for any hostname or domain from DNS servers across the globe.<\/span><\/p><p><span style=\"color: rgb(55, 65, 81);\">Our DNS Propagation Checker tool simplifies global DNS checks by offering a comprehensive list of over 100 global DNS servers. You can customize the DNS server for certain tools and perform DNS checks using different servers.<\/span><\/p><p><span style=\"color: rgb(55, 65, 81);\">To enhance understanding, our tool collects, parses, and displays DNS propagation results on a map. A green tick indicates that the requested DNS record is available on the DNS server, while a cross indicates its unavailability. The green tick also signifies that the DNS record matches the expected value set by the user, whereas a cross indicates a mismatch. To view individual DNS record propagation lookup on global DNS servers, simply select each DNS record.<\/span><\/p><p><br><\/p><h5><span style=\"color: rgb(55, 65, 81);\">\ufeffThe most common DNS record types include:<\/span><\/h5><ul><li>A record: Contains the IPv4 address information of the hostname.<\/li><li>AAAA record: Contains the IPv6 address information of the hostname.<\/li><li>CNAME record: Also known as an alias record, it redirects the sub-domain to its domain, such as redirecting <a href=\"https:\/\/www.whodat1.com\/\" target=\"_blank\" style=\"color: blue;\"><u>https:\/\/www.whodat1.com<\/u><\/a> to whodat1.com.<\/li><li>MX record: Provides information on where the domain's email should be routed and the priority of mail servers.<\/li><li>NS record: Offers information about the authoritative nameservers of a domain.<\/li><li>TXT record: Commonly used for other DNS record configurations like SPF, DKIM, or DMARC records.<\/li><\/ul><p><br><\/p><h5><span style=\"color: rgb(55, 65, 81);\">What is DNS propagation? <\/span><\/h5><p><span style=\"color: rgb(55, 65, 81);\">DNS propagation refers to the time it takes for DNS changes to propagate across the internet globally. This process can take up to 48 hours to complete worldwide. Use our <\/span><a href=\"https:\/\/whodat1.com\/\" target=\"_blank\" style=\"color: rgb(55, 65, 81);\">DNS Propagation Checker<\/a><span style=\"color: rgb(55, 65, 81);\"> to monitor and track the progress of your DNS changes.<\/span><\/p><p><br><\/p><h5><br><\/h5><p><br><\/p>","footer":"<p class=\"ql-align-center\"><br><\/p>"},"find_btn":{"text":"Find","color":"#F3DF00","text_color":"#000000"},"whois_btn":{"text":"Lookup","color":"#5CC9FF","text_color":"#000000"},"default_dns":"A","enable_logs":true,"show_dark_mode":true,"enable_ad_block_detector":false,"ad_block_detector_filename":"admanager.js","map_fail_reloader":false,"timeout":5}