https://gokugetsu.plala.jp/nextcloud-をインスト−ルする/http://sig9.hatenablog.com/entry/2017/10/21/000000https://qiita.com/wynnkengeofu/items/df5497cbd0b0a690d775http://www.server-memo.net/server-setting/nextcloud/nextcloud_install.htmlhtt…