cd /usr/src/;
wget https://download.bestpractical.com/pub/rt/release/rt-4.0.22.tar.gz ;
wget https://download.bestpractical.com/pub//rt/release/RT-IR-3.0.4.tar.gz ;
adduser --system --group rt;
usermod -aG rt www-data;

tar xzvf rt-4.0*.tar.gz;
cd /usr/src/rt-4.0.22
./configure --with-web-user=www-data --with-web-group=www-data --enable-graphviz --enable-gd

/opt/rt4/sbin/rt-server --port 8080

cat /etc/apache2/sites-available/rt.conf
<VirtualHost *:8081>
        ServerAdmin webmaster@localhost
        ServerName 10.1.1.155:8081

        AddDefaultCharset UTF-8
        DocumentRoot /opt/rt4/share/html
        Alias /NoAuth/images/ /opt/rt4/share/html/NoAuth/images/
        ScriptAlias / /opt/rt4/sbin/rt-server.fcgi/
        <Location />
                Require all granted
        </Location>

        LogLevel info

        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined

</VirtualHost>

Set( $rtname, '10.1.1.155');
Set($WebDomain, '10.1.1.155');
Set($WebPort, 8081);

chown www-data:www-data -R /opt/rt4/var/mason_data

cd /usr/src
tar xzvf RT-IR-3.0.4.tar.gz
cd /usr/src/RT-IR-3.0.4

apt-get install libhook-lexwrap-perl libnet-whois-ripe-perl

Set(@Plugins, 'RT::IR');