====== Upgrade 94.199.215.198 ======

Plan:

  * Define which servers and applications are running on 94.199.215.198
    * https://avril.work
    * https://www.avril.work
    * https://vwiki.avril.work
    * ...
  * define which servers are necessary
  * make a backups of all
    * TODO:
      * https://avril.work
      * https://www.avril.work
      * https://vwiki.avril.work
        * Application backup, data backup is already done
    * DONE:
      * Data of https://vwiki.avril.work
  * **-** find out which server is the strongest
    * write a list of servers
      * see [[My Servers]]
  * install DokuWiki on Docker avril2019.wialon-consulting (185.194.236.66)
    * see 
      * https://github.com/dokuwiki/docker
      * https://www.patreon.com/dokuwiki/posts/running-dokuwiki-42961375
  * define which Ubuntu version we need
  * install a new Ubuntu version
  * install applications if necessary
  * check installations