MediaWiki Install 2022-01-22

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DeadmanDAO

Create Instance

Interserver Web Interface

  1. go to interserver
  2. create an instance
    1. Single Slice ($6/mo at this time)
    2. Debian 9 (Deb 9 has Mailman 2, Deb 10 has Mailman 3)
    3. KVM
  3. set reverse DNS to diffie.deadmandao.com
  4. Note the IP address

Update to Latest

Log in root@ip.address using password you provided 

apt-get update
apt-get -y upgrade
apt-get -y dist-upgrade # if needed
reboot

Add User Account

Log in root@ip.address 

apt-get -y install sudo
adduser bob
usermod -G sudo bob
exit

Log in to bob@ip.address

Set SPF

sudo apt-get install net-tools
sudo ifconfig

That'll give you the ip4 and ip6 addresses, which go into the DNS text record:

  • v=spf1 ip4:66.23.226.216 ip6:fe80::216:3eff:fe24:10e1 -all

Set Other DNS

  • A Record, diffie, 66.23.226.216
  • A Record, @, 66.23.226.216
  • CNAME Record, www, diffie.deadmandao.com
  • CNAME Record, mail, diffie.deadmandao.com
  • TXT Record, diffe, v=spf1 ip4:66.23.226.216 ip6:fe80::216:3eff:fe24:10e1 -all
  • MX Record, deadmandao.com, mail.deadmandao.com, 10

Set Hostname

sudo apt-get install emacs-nox
sudo emacs -nw /etc/hostname
> diffie
sudo emacs -nw /etc/hosts
> 66.23.226.216	diffie.deadmandao.com diffie
sudo reboot

Log in to bob@diffie.deadmandao.com 

hostname
hostname --all-fqdn
dnsdomainname

SMTP Server

sudo apt-get install postfix
  • Internet Site
  • deadmandao.com is the host domain
  • send a test email
echo "Subject: sendmail test" | /usr/sbin/sendmail -v emailaddress

Apache Install

sudo apt install apache2

100-root.conf

Location: /etc/apache2/sites-available/100-root.conf 

<VirtualHost *:80>
        ServerName deadmandao.com
        ServerName www.deadmandao.com

        ServerAdmin webmaster@localhost
        DocumentRoot /var/www/www

        ErrorLog ${APACHE_LOG_DIR}/www-error.log
        CustomLog ${APACHE_LOG_DIR}/www-access.log combined
</VirtualHost>

200-wiki.conf

Location: /etc/apache2/sites-available/200-wiki.conf 

<VirtualHost *:80>
	ServerName wiki.deadmandao.com

	ServerAdmin webmaster@localhost
	DocumentRoot /var/www/mediawiki

	ErrorLog ${APACHE_LOG_DIR}/wiki-error.log
	CustomLog ${APACHE_LOG_DIR}/wiki-access.log combined
</VirtualHost>

Add TLS/SSL

https://certbot.eff.org/instructions?ws=apache&os=debianbuster

Add Snapd

sudo apt update
sudo apt install snapd
sudo snap install core
sudo snap refresh core

Snap Install Certbot

sudo snap install --classic certbot
sudo ln -s /snap/bin/certbot /usr/bin/certbot

Get a Cert for Apache

sudo certbot --apache -d deadmandao.com -d www.deadmandao.com -d wiki.deadmandao.com

MediaWiki Supporting Software

First, the basics. You'll need all of these: 

$ sudo apt install mariadb-server php php-mysql libapache2-mod-php php-xml php-mbstring

Next, the enhancements. These will give MediaWiki extra capabilities. See Optional Packages 

$ sudo apt install php-apcu php-intl imagemagick php-cli php-curl git

Configure PHP

There are a couple settings that are worth checking in PHP: 

$ cd /etc/php/7.3/apache2/
$ grep memory_limit php.ini
$ grep upload_max_filesize php.ini

128 megs should be fine for memory.

I'm torn on filesize. I'm trying to fit on a $5/mo machine with a 40 Gig HDD. Most things other than video for use on the web can be under 2 megs (the default size). I feel like the best answer may be a plugin to store large files in S3 at 1/4th the price. It's not a one-way-door, though. I'm leaving mine at 2 megs for now.

Make sure the PHP plugins are enabled: 

$ sudo phpenmod apcu
$ sudo phpenmod curl
$ sudo phpenmod intl
$ sudo phpenmod mbstring
$ sudo phpenmod xml
$ sudo systemctl restart apache2

Configure MariaDB

It's time to stop generically referring to MariaDB as MySQL. MySQL is a once-great project that is no longer trustworthy. MariaDB is the leading Open Source RDBMS.

If you haven't done anything with it yet, there will be no password. 

$ sudo mariadb -u root

Pick a username for MediaWiki to use (I'm using wiki_wiki as an example).

Pick a database name (I'm using hsl_wiki as an example).

Pick a password other than "CHANGE THIS PASSWORD". 

MariaDB> create database deadmandao_wiki;
MariaDB> grant all on deadmandao_wiki.* to 'wiki_wiki'@'localhost' identified by 'CHANGE THIS PASSWORD';
MariaDB> flush privileges;

Then you can verify it worked if you like. (there won't be any tables, but it shouldn't give you an auth error) 

$ mariadb -u wiki_wiki -p
MariaDB> show tables in deadmandao_wiki;
MariaDB> exit
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