Function: dns-lookup-host

dns-lookup-host is an autoloaded, interactive and byte-compiled function defined in net-utils.el.gz.

Signature

(dns-lookup-host HOST &optional NAME-SERVER)

Documentation

Look up the DNS information for HOST (name or IP address).

Optional argument NAME-SERVER says which server to use for DNS resolution. Interactively, prompt for NAME-SERVER if invoked with prefix argument.

This command uses dns-lookup-program for looking up the DNS information.

Probably introduced at or before Emacs version 26.1.

Key Bindings

Source Code

;; Defined in /usr/src/emacs/lisp/net/net-utils.el.gz
;;;###autoload
(defun dns-lookup-host (host &optional name-server)
  "Look up the DNS information for HOST (name or IP address).
Optional argument NAME-SERVER says which server to use for
DNS resolution.
Interactively, prompt for NAME-SERVER if invoked with prefix argument.

This command uses `dns-lookup-program' for looking up the DNS information."
  (interactive
   (list (let ((default (ffap-machine-at-point)))
           (read-string (format-prompt "Lookup host" default) nil nil default))
         (if current-prefix-arg (read-from-minibuffer "Name server: "))))
  (let ((options
         (append dns-lookup-program-options (list host)
                 (if name-server (list name-server)))))
    (net-utils-run-program
     (concat "DNS Lookup [" host "]")
     (concat "** "
	     (mapconcat #'identity
                        (list "DNS Lookup" host dns-lookup-program)
                        " ** "))
     dns-lookup-program
     options)))