Disable systemd-resolved on Ubuntu/Deb/CentOS
systemd-resolved provide DNS resolver facility in newer version of Linux servers running systemd. I prefer manually editing /etc/resolv.conf and add resolvers. If…
dns
Requesting a zone trasnfer with dig
To request a zone transfer using dig, use dig @NAME_SERVER_HERE -t AXFR DOMAIN_NAME_HERE Example [root@vps3 poweradmin]# dig @server10.hosthat.com -t AXFR bizhat.com ;…
Wildcard DNS zone in bind
Wildcard DNS zone will act as authoritative DNS for any domain name. This is useful when you have a service like domain…
bind
bind is a DNS server. To check bind configuration for errors, run named-checkconf -z /etc/named.conf if chroot named-checkconf -z -t /var/named/chroot /etc/named.conf…
Install Unbound DNS caching server
Unbound is an Open source DNS caching and recursive resolver. You can find more about unbound at https://nlnetlabs.nl/projects/unbound/about/ To install unbound on…
Free DNS Hosting
Free DNS Hosting https://www.cloudflare.com https://desec.io – Open Source. Source code https://yandex.com/support/domain/domain/dns.html https://www.cloudns.net/ https://dns.he.net/ https://www.duckdns.org/ https://www.dynu.com/ https://www.luadns.com https://ns1.com – Developer plan with 1…
Delegate a sub domain to DNS server
To point a domain to another server, you can create an A record, point to the server. If your provider only provide…
Dig
dig is a command line tool like nslookup used to check dns Find Reverse-DNS/PTR using dig, nslookup, host Requesting a zone trasnfer…
DNS Resolver
CloudFlare announced privacy-first consumer DNS service. IP of CloudFlare public DNS servers are 1.1.1.1 1.0.0.1 So far i was using Google Public…
DNS Tools
Reverse DNS/rDNS/PTR Record How to delete Google Cloud DNS Zone DNS Tools https://dnschecker.org https://intodns.com https://dnsmap.io http://leafdns.com https://dnsviz.net https://www.dnsperf.com dig Google Public DNS…