OsTicket/Installing

Update

~$ sudo yum update -y

Install EPEL repo

~$ sudo yum install epel-release

Install LAMP

~$ sudo yum install httpd openssl mod_ssl php mariadb mariadb-server mysql -y 

Secure MariaDB

~$ sudo systemctl start mariadb.service
~$ sudo systemctl enable mariadb.service
~$ sudo mysql_secure_installation
Enter current password for root (enter for none):
Set root password? [Y/n] y
Remove anonymous users? [Y/n] y
Disallow root login remotely? [Y/n] y
Remove test database and access to it? [Y/n] y
Reload privilege tables now? [Y/n] y

Test MariaDB password

~$ mysql -u root -p

Install Dependencies

~$ sudo yum install php-mysql php-gd php-ldap php-odbc php-pear php-xml php-xmlrpc php-mbstring php-snmp php-mcrypt php-imap -y 

Download, Extract, and Configure osTicket

~$ sudo mkdir -p /opt/osticket
~$ sudo wget -P /tmp/ http://osticket.com/sites/default/files/download/osTicket-v1.9.12.zip
~$ sudo unzip -d /opt/osticket /tmp/osTicket-v1.9.12.zip
~$ sudo ln -s /opt/osticket/upload /var/www/html/support
~$ sudo chown apache: -R /var/www/html/support /opt/osticket
~$ sudo cp /var/www/html/support/include/ost-sampleconfig.php /var/www/html/support/include/ost-config.php
~$ sudo chmod 0666 /var/www/html/support/include/ost-config.php

Configure MariaDB

~$ sudo mysql -u root -p
MariaDB> create database osticketdb;
MariaDB> CREATE USER 'osticketuser'@'localhost' IDENTIFIED BY 'password';
MariaDB> GRANT ALL ON osticketdb.* TO 'osticketuser'@'localhost';
flush privileges;
exit;

Doublecheck database & user creation, permissions and password

~$ sudo mysql -u root -p
MariaDB> SHOW DATABASES;
osticketdb
MariaDB> SELECT User,Host FROM mysql.user;
osticketuser | localhost
MariaDB> SHOW GRANTS FOR 'osticketuser'@'localhost';
GRANT ALL PRIVILEGES ON `osticketdb`.* TO 'osticketuser'@'localhost'
MariaDB> exit;
~$ sudo mysql -u osticketuser -p

Configure Apache

start and set to start on boot

~$ sudo systemctl start httpd.service
~$ sudo systemctl enable httpd.service

Create file vhosts.conf and insert configuration line

~$ sudo vi /etc/httpd/conf.d/vhosts.conf
IncludeOptional vhosts.d/*.conf

Create Virtual Host

~$ sudo mkdir /etc/httpd/vhosts.d/
~$ vi /etc/httpd/vhosts.d/support.yourdomain.com.conf

<VirtualHost *:80>
ServerAdmin webmaster@yourdomain.com
DocumentRoot "/var/www/html/support/"
ServerName support.yourdomain.com
ServerAlias www.support.yourdomain.com
ErrorLog "/var/log/httpd/yourdomain.com-error_log"
CustomLog "/var/log/httpd/yourdomain.com-access_log" combined
 
<Directory "/var/www/html/support/">
DirectoryIndex index.html index.php
Options FollowSymLinks
AllowOverride All
Require all granted
</Directory>
</VirtualHost>

Restart Apache

~$ sudo systemctl restart httpd.service

Disable SELinux

~$ sudo vi /etc/selinux/config
change SELinux=enforcing to SELinux=disabled

~$ sudo reboot

check status

~$ sestatus
SELinux status:                 disabled

Disable firewalld replace with iptables

~$ sudo systemctl mask firewalld
~$ sudo systemctl stop firewalld
~$ sudo yum -y install iptables-services
~$ sudo systemctl enable iptables
~$ sudo systemctl start iptables

Configure iptables

There are some defaults that should be removed and changed. Using a rule at the bottom of the chain to prohibit traffic instead of changing the default policy of the chain seems silly to me.

~$ sudo iptables -D INPUT -j REJECT --reject-with icmp-host-prohibited
~$ sudo iptables -D FORWARD -j REJECT --reject-with icmp-host-prohibited
~$ sudo iptables -A INPUT -s 10.0.0.0/8 -p tcp --dport 22 -j ACCEPT -m comment --comment "ssh-limit internal"
~$ sudo iptables -D INPUT -s 0.0.0.0/0 -p tcp -m state --state NEW --dport 22 -j ACCEPT
~$ sudo iptables -A INPUT -s 10.0.0.0/8 -p tcp -m multiport --dports 80,443 -j ACCEPT -m comment --comment "http/s-limit internal"
~$ sudo iptables -P INPUT DROP
~$ sudo iptables -P FORWARD DROP
~$ sudo service iptables save

Create A records

Create the necessary A record(s) for your setup. Make sure they have propagated and are resolvable.

Configure osTicket

Go to your osTicket instance, http://support.yourdomain.com
Make sure the default page shows everything found and available.
Go through the steps of configuring the site

• Site Name
• support email address
• root user & password
• database name, user, & password

Once completed, you'll get a Congratulations screen, go ahead and change file permissions of the config file to a secure setup.

~$ sudo chmod 644 /var/www/html/support/include/ost-config.php

Now you'll have a few options for links:

• Main customer portal -- support.yourdomain.com
• Admin portal -- support.yourdomain.com/scp/settings.php

FAQ

Before the Knowledgebase can be accessible, you must first create a category, then create a FAQ/article, and finally you can make it public.