Configure TRAMP for sudo/doas over SSH

config.org

@@ -1082,3 +1082,17 @@
            smtpmail-stream-type 'starttls
            send-mail-function 'smtpmail-send-it)
    #+end_src
+
+* Remote Access
+** Sudo/doas on Remote Hosts
+   To edit files as root on remote hosts with sudo or doas while also
+   tunneling over SSH, you need to configure TRAMP to use SSH as a
+   proxy. This is done by adding to [[help:tramp-default-proxies-alist][tramp-default-proxies-alist]], as
+   detailed in [[info:tramp#Multi-hops][the TRAMP manual]]:
+
+   #+begin_src emacs-lisp
+     (add-to-list 'tramp-default-proxies-alist
+                  '(nil "\\`root\\'" "/ssh:%h:"))
+     (add-to-list 'tramp-default-proxies-alist
+                  '((regexp-quote (system-name)) nil nil))
+   #+end_src