追記:20120412
と思ったけどデフォルトで『conf-mode』あるからこれ要らなかった(´・ω・`)
init.el
(autoload 'apache-mode "apache-mode" nil t) (add-to-list 'auto-mode-alist '("\\.htaccess\\'" . apache-mode)) (add-to-list 'auto-mode-alist '("httpd\\.conf\\'" . apache-mode)) (add-to-list 'auto-mode-alist '("srm\\.conf\\'" . apache-mode)) (add-to-list 'auto-mode-alist '("access\\.conf\\'" . apache-mode)) (add-to-list 'auto-mode-alist '("sites-\\(available\\|enabled\\)/" . apache-mode)) (add-to-list 'auto-mode-alist '("\\.cnf$" . apache-mode)) (add-to-list 'auto-mode-alist '("security$" . apache-mode))