Variable: tramp-default-method-alist
tramp-default-method-alist is a customizable variable defined in
tramp.el.gz.
Value
((nil "\\`\\(?:anonymous\\|ftp\\)\\'" "ftp") ("\\`ftp\\." nil "ftp")
("\\`\\(?:0eec510c8142\\|\\(?:127\\.0\\.0\\.1\\|::1\\|ip\\(?:6-lo\\(?:calhost\\|opback\\)\\|v6-lo\\(?:calhost\\|opback\\)\\)\\|localhost[46]?\\)\\)\\'"
"\\`root\\'" "su"))
Documentation
Default method to use for specific host/user pairs.
This is an alist of items (HOST USER METHOD). The first matching item
specifies the method to use for a file name which does not specify a
method. HOST and USER are regular expressions or nil, which is
interpreted as a regular expression which always matches. If no entry
matches, the variable tramp-default-method takes effect.
If the file name does not specify the user, lookup is done using the empty string for the user name.
See tramp-methods for a list of possibilities for METHOD.
Source Code
;; Defined in /usr/src/emacs/lisp/net/tramp.el.gz
;;;###tramp-autoload
(defcustom tramp-default-method-alist nil
;; FIXME: This is not an "alist", because its elements are not of
;; the form (KEY . VAL) but (KEY1 KEY2 VAL).
"Default method to use for specific host/user pairs.
This is an alist of items (HOST USER METHOD). The first matching item
specifies the method to use for a file name which does not specify a
method. HOST and USER are regular expressions or nil, which is
interpreted as a regular expression which always matches. If no entry
matches, the variable `tramp-default-method' takes effect.
If the file name does not specify the user, lookup is done using the
empty string for the user name.
See `tramp-methods' for a list of possibilities for METHOD."
:type '(repeat (list (choice :tag "Host regexp" regexp sexp)
(choice :tag "User regexp" regexp sexp)
(choice :tag "Method name" string (const nil))))
:link '(info-link :tag "Tramp manual" "(tramp) Default Method"))