====== Log: 气候组服务器维护记录 ======

===== 10. 加装一块 16T SeaGate 硬盘 =====

首先用root账户查看一下硬盘的设备名，并进入分区命令 parted

  fdisk -l （或用 parted -l 也可以）
  parted /dev/sdd （进入 parted 环境）
  print （查看一下当前设备的情况）

然后构建一个label，通常对于大于2T的硬盘用gpt，可选的label有：aix, amiga, bsd, dvh, gpt, mac, ms-dos, pc98, sun, and loop

  mklabel gpt
  print

然后就可以创建分区了，如果全盘就分一个区的话，这样做

  mkpart primary ext4 0% 100%
  print

退出即可保存分区表，就这么简单！

  quit

下面要format这个分区

  mkfs -t ext4 /dev/sdd1

最后别忘了在/etc/fstab中加入相应条目，让它自动挂载

  mkdir /home4
  vi /etc/fstab
    加入如下这样一行即可：
    /dev/sdd1 /home4 ext4 defaults 0 2

大功告成！
  

===== 9. WordPress =====
2022-July-13, I install MySQL + php extensions and setup my first WordPress

有关 MySQL 的安装和配置如下：

  直接用apt安装MySQL
  apt install mysql-server
  
  进入MySQL命令行环境
  mysql -u root
  CREATE DATABASE wordpress; 创建一个给wp用的数据库wordpress
  CREATE USER wpuser IDENTIFIED BY 'your-password-here'; 添加一个用户wpuser和密码
  GRANT ALL ON wordpress.* TO wpuser; 给wpuser用户赋予完全读写wordpress数据库的权力
  FLUSH PRIVILEGES; 改动生效
  EXIT

有关 PHP 的安装和配置如下：

  系统原本就有apache2和php，其它是需要安装的，否则wordpress会报错说：php没有安装mysql的扩展插件
  apt install apache2 \
              ghostscript \
              libapache2-mod-php \
              mysql-server \
              php \
              php-bcmath \
              php-curl \
              php-imagick \
              php-intl \
              php-json \
              php-mbstring \
              php-mysql \
              php-xml \
              php-zip
  此时务必重启一下计算机！

有关 WordPress 的安装和配置：

  cp wp-config-sample.php wp-config.php
  
  vi wp-config.php
     我改动了如下几处
     define( 'DB_NAME', 'wordpress' );
     define( 'DB_USER', 'wpuser' );
     define( 'DB_PASSWORD', 'mysql中设置的wpuser的密码' );
     $table_prefix = 'wp20220713_';
     
  chown -R www-data:www-data wordpress   把wordpress整个目录的文件都设为www-data用户
     
  打开浏览器，进入5分钟配置页面即可：http://climateserver.xxxx.xxx/wordpress/wp-admin/install.php
  
  日后访问网页：http://climateserver.xxxx.xxx/wordpress
  日后登录后台：http://climateserver.xxxx.xxx/wordpress/wp-login.php


===== 8. WebDAV service =====
2022-May-17, I strictly follow this page to configure WebDAV service within Apache2 framework: https://www.techrepublic.com/article/how-to-enable-webdav-on-your-ubuntu-server/

   你可以这么使用webdav服务：
   url: http://climateserver.3322.org/webdav/[MakeOnePathHere] 实际是在/var/www/webdav/下建一个你的具体使用目录，然后连这个url即可
   id:  wensirwebdav
   pw:  wxxxxxxx2xx0 经典pw


===== 7. 重装NCL =====
2021年10月17日，未知原因原来的NCL6虚拟环境不能用了，进不了ncl，于是决定重装

  su -    #必须切换到root账户
  conda create -n NCL662 -c conda-forge ncl    #就这一条命令即可完成安装NCL，6.6.2版是最新版

至此已经完成安装，以后用如下命令即可进入或退出NCL环境
  conda activate NCL662
  conda deactivate

老的NCL6环境，就删除吧
  conda env list    #查看有哪些环境
  conda env remove --name NCL6


===== 6. 断电后fsck硬盘 =====
2021年8月22日，来到办公室发现cs已经关机了，估计是大楼断电导致了cs硬关机，唉，很为启动盘捏一把汗。果然，启动cs后，一大堆错误，第一遍甚至没起来。按reset键重启，在经历一大堆硬盘报错后，进入到登录画面了。登录，切换root，感觉还是不太正常。决定用fsck命令检查启动盘的所有错误。命令如下：

<code>
df -T -h                 # 检查各个盘的dev名，和fs类型（是否ext4？）
fsck.ext4    /dev/sdc2   # sdc2就是ubuntu的系统盘，另外两块10T数据盘分别是sda1和sdb1
或者
fsck.ext4 -y /dev/sdc2   # 这可以省却很多按y（或直接按回车）的过程，整个检查过程，大概有几十个错误需要按回车
</code>

之后再重启，就没有问题了！God bless me!

===== 5. Banner =====
<code>
##### Generate banner at /etc/motd (XW: Mar 6, 2020)
www.patorjk.com/software/taag
Input anything you want to show as hello banner
Press "Test All" so that you can choose one touching you
</code>

===== 4. NCL within conda =====
语真反映yum安装的NCL画图会出现莫名其妙的问题，再加上历史遗留的load问题，索性干脆按照官网指导，用conda重新安一个NCL和专门给它独享的环境。
<code>
##### Re-Install NCL through conda (XW: Feb 22, 2020)
follow this page: http://www.ncl.ucar.edu/Download/conda.shtml
run this command to install NCL 6.6.2 into an environment named "NCL6"
conda create -n NCL6 -c conda-forge ncl

Please note that everyone, for everytime,
should run "conda activate NCL6" right before using NCL.

"conda deactivate" or not doesn't matter.
</code>

===== 3. Timezone =====
机器时区默认是错的，故手工修改一下时区信息
<code>
##### Reset Timezone
timedatectl set-timezone Asia/Shanghai
timedatectl (this command will show below outputs)
(base) root@cs:~# timedatectl
                      Local time: Mon 2019-11-04 14:45:17 CST
                  Universal time: Mon 2019-11-04 06:45:17 UTC
                        RTC time: Mon 2019-11-04 06:45:17
                       Time zone: Asia/Shanghai (CST, +0800)
       System clock synchronized: yes
systemd-timesyncd.service active: yes
                 RTC in local TZ: no
</code>

===== 2. Python =====
<code>
##### Python3 w/ Anaconda
Download Anaconda3-2019.10-Linux-x86_64.sh from tuna.tsinghua and install it
After installation, it is shown:
-----
installation finished.
Do you wish the installer to initialize Anaconda3
by running conda init? [yes|no]
[no] >>> yes
no change     /opt/anaconda3/condabin/conda
no change     /opt/anaconda3/bin/conda
no change     /opt/anaconda3/bin/conda-env
no change     /opt/anaconda3/bin/activate
no change     /opt/anaconda3/bin/deactivate
no change     /opt/anaconda3/etc/profile.d/conda.sh
no change     /opt/anaconda3/etc/fish/conf.d/conda.fish
no change     /opt/anaconda3/shell/condabin/Conda.psm1
no change     /opt/anaconda3/shell/condabin/conda-hook.ps1
no change     /opt/anaconda3/lib/python3.7/site-packages/xontrib/conda.xsh
no change     /opt/anaconda3/etc/profile.d/conda.csh
modified      /root/.bashrc

==> For changes to take effect, close and re-open your current shell. <==

If you'd prefer that conda's base environment not be activated on startup,
   set the auto_activate_base parameter to false:

conda config --set auto_activate_base false

Thank you for installing Anaconda3!
-----
</code>

之后用conda装一个basemap，以方便慕琦使用python画地图
<code>
##### Install basemap package for anaconda/base (XW: Mar 4, 2020)
conda install basemap
</code>

此外，有些package用conda没法安装，使用pip做如下补充：
<code>
##### pip install
pip install pygame
pip install nikola pelican
</code>

===== 1. Installation =====
<code>
##### Tools
apt install lftp
apt install tcsh
apt install vim nano (already installed by default)
apt install htop (already installed)
apt install dfc
apt install tree
apt install mc
apt install unrar
apt install pandoc a2ps
apt install img2pdf
apt install boxes figlet toilet cowsay
apt install sl
apt install sysbench (sysben --test=cpu|memory|fileio run)
apt install cockpit  (a simple admin tool via web by listening port 9090 w/ htpps)
apt install aha
apt install ffmpeg (a comprehensive tool for video/audio converting stuff)

##### Work
apt install openjdk-8-jdk    openjdk-8-doc
apt install openjdk-8-source openjdk-8-dbg  # optional
apt install gcc g++ gfortran
apt install ncl-ncarg
apt install octave
apt install netcdf-bin pnetcdf-bin
apt install ncview
apt install nco cdo (HUGE! 1.2G)
apt install grads
apt install gnuplot
apt install imagemagick
apt install gv xpdf mupdf
apt install feh

##### Network
apt install aria2 tranmission-cli     Download tool, support magnetic torrent
apt install firefox
apt install w3m
apt install apache2
    a2enmod userdir                   Open HTTP for each user under ~/public_html
    systemctl restart apache2         Restart HTTP service
apt install php
apt install shellinabox
    service shellinabox status
    service shellinabox start
    vi /etc/default/shellinabox       if you want to change the default port 4200
apt install vsftpd
    systemctl status vsftpd
    systemctl start vsftpd
    systemctl enable vsftpd
</code>


===== 0. History =====

2019年11-12月，永霖和新宇采购并安装配置了全新的climateserver服务器（以下简称cs），硬件参数如下：

  * 20 Processors (Intel Xeon CPU E5-2650L v2 @ 1.70 GHz)
  * 64G RAM (Samsung DDR3 1600 MHz)
  * Hard drive: 2 x 12T HHD (WD Red) + 1 x 480G SSD