====== Log: 网站维护记录 ======

===== 4. Plugins =====
用Admin里的Extension Manager功能，里面有一个tag是Search and Install，用这个在线安装如下三个插件：
  - mathjax: 显示数学公式功能 https://www.dokuwiki.org/plugin:mathjax 页面里说可修改配置给方程自动编号，可惜不work；还能调整默认大小如150%，work但同时影响inline方程行的行距，不美
  - imagebox: 显示图片的caption，如wikipedia一般 https://www.dokuwiki.org/plugin:imagebox
  - sortablejs: 给表格的某列增加排序功能 https://www.dokuwiki.org/plugin:sortablejs

===== 3. Security =====
Dokuwiki在默认根目录下有一个叫.htaccess.dist的文件，里面已经设好了必要的安全措施，主要就是防止对4个目录（data, conf, inc, vendor）的读写。只需要打开Apache的支持htaccess的功能即可。具体为：编辑/etc/httpd/conf/httpd.conf中涉及/var/www/html的部分如下：

<code>
# Further relax access to the default document root:
<Directory "/var/www/html">
    #
    # Possible values for the Options directive are "None", "All",
    # or any combination of:
    #   Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews
    #
    # Note that "MultiViews" must be named *explicitly* --- "Options All"
    # doesn't give it to you.
    #
    # The Options directive is both complicated and important.  Please see
    # http://httpd.apache.org/docs/2.4/mod/core.html#options
    # for more information.
    #
    Options Indexes FollowSymLinks

    #
    # AllowOverride controls what directives may be placed in .htaccess files.
    # It can be "All", "None", or any combination of the keywords:
    #   Options FileInfo AuthConfig Limit
    # XW(20200808): I change this from None to All
    AllowOverride All 我就只把这行的None改为All即可

    #
    # Controls who can get stuff from this server.
    #
    Require all granted
</Directory>
</code>

===== 2. PHP upload limit =====

  * modify /etc/php.ini so as to allow upload big file in MediaManager
  * upload_max_filesize = 500M (from 100M) 原来装MediaWiki时改到100M，现在再扩大
  * post_max_size = 500M (from 128M) 原来装mediaWiki时改到128M，现在再扩大
  * restart apache by "service httpd restart" to active new PHP settings

 --- //[[wensir365@163.com|Xinyu Wen]] 2020/07/02 01:46//


===== 1. Installation =====

  * download tarball from official website
  * tar xzvf the tgz file at /var/www/html, generate dokuwiki directory
  * mv dokuwiki to <wrap em>group</wrap>, this is the name I want
  * use root, chown -R apache:apache group 修改group下所有文件和目录的归属属性
  * use browser, visit /group/install.php to setup initially 初始化，之后这个php文件就消失了。我后来发现好像没有自动消失，我把install.php改为install.php.old了
  * generate /conf/tpl/dokuwiki/style.ini to change page width and background color
  * upload logo.png and favicon.ico to namespace of /wiki in MediaManager

 --- //[[wensir365@163.com|Xinyu Wen]] 2020/06/22 12:26//

===== 0. Background =====
2019年底（参见2019年11月1日22:10的Email，标题为“网络安全风险通知”），原来的组网站 www.phy.pku.edu.cn/climate 因为php安全漏洞被北大计算中心暂时封闭。后2020年6月，物理学院为配合北大将faculty主页全部收归校方统一管理，准备清理所有在 www.phy.pku.edu.cn 上托管的网页。所以，在2020年6月这个关口，我们干脆把组网站从物理学院服务器上整体拿出来，放到云主机pkumet.live上，在北大官方的faculty页面上只保留一个链接，link到这里。