View source for Linux - Applications

== Apache ==

* /etc/httpd/conf/httpd.conf
* /etc/httpd/conf.d/ssl.conf
* /etc/httpd/conf.d/proxy_ajp.conf to connect to Tomcat over AJP

PHP packages:
  php php-mbstring php-pear php-fpm

User directories:

 setsebool -P httpd_enable_homedirs 1
 chmod 711 /home/someuser
 chmod 755 /home/someuser/public_html

After updating certificate (and key) SELinux may not allow access. Fix with:
 restorecon -v /etc/pki/tls/certs/www.smithnet.org.uk.cert.pem

=== HTTP/2 ===

Enable (globally or in a virtual host):
 Protocols h2 h2c http/1.1

Use curl to check protocol switching:
 curl --http2 -v localhost
 ...
 < HTTP/1.1 101 Switching Protocols
 < Upgrade: h2c
 < Connection: Upgrade
 * Received 101
 * Using HTTP2, server supports multi-use
 * Connection state changed (HTTP/2 confirmed)
 * Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
 * Connection state changed (MAX_CONCURRENT_STREAMS == 100)!
 < HTTP/2 200
 ...

== Mediawiki ==

* Install PHP, including php-pgsql driver and php-pecl-apcu object caching.
* Uncomment in /etc/httpd/conf.d/mediawiki.conf

Set SELinux:
 setsebool -P httpd_read_user_content 1
 setsebool -P httpd_can_network_connect 1
 setsebool -P httpd_can_network_connect_db 1

* Unpack [https://www.mediawiki.org/wiki/Extension:Math Math] under /usr/share/mediawiki/extensions/Math
* Run setup http://hostname/wiki
** Allow it to create DB user/schema
** Tick Math option
* Configuration: /usr/share/mediawiki/LocalSettings.php

Customisations:
 $wgServer           = "http://www.smithnet.org.uk";
 $wgEmergencyContact = "webmaster@smithnet.org.uk";
 $wgPasswordSender   = "webmaster@smithnet.org.uk";
 $wgLogo             = "/images/smithnet_wiki.png";

Add new file types for upload, and enable uploads:
 $wgFileExtensions[] = 'pdf';
 $wgEnableUploads = true;

Extra Logging:
 $wgShowExceptionDetails = true;

=== Export/Import ===

Export all content as XML:
 php /usr/share/mediawiki/maintenance/dumpBackup.php --full --conf /var/www/wiki/LocalSettings.php > dump.xml

or use the Special Page.

After RPM upgrade, may need to update database schema:
 /usr/share/mediawiki/maintenance/update.php

Or use the Special Page. File uploading may be limited by PHP (/etc/php.ini):
 upload_max_filesize = 25M

or HTTPD (0 is unlimited):
 LimitRequestBody 0

== Tomcat ==

* /etc/tomcat/conf/server.xml (define required connectors)
* /etc/tomcat/conf/tomcat-users.xml
* Webapps deplyed to: /var/lib/tomcat/webapps
** tomcat-webapps
** tomcat-docs-webapps
** tomcat-admin-webapps