DNS Cheatsheet / Resolveping

For Ubuntu Linux

DNS Check

http://www.intodns.com

Get DNS Configuration / Show nameservers

  • systemd-resolve --status --no-pager

Flush DNS Cache

  • systemd-resolve --flush-caches

DNS Traceroute

  • dig -trace xxx.example.com

Query a nameserver

  • dig @192.168.0.10 somehost.example.com