Overview of services

DNS

We run Bind on gate and newdaq as failover
Configuration can be found in /etc/bind/

Make sure you change DNS entries on both machines

DHCP

We run a DHCP server on gate and newdaq as failover
Configuration can be found in /etc/dhcpd/

DHCP range for the internal network is 10.0.100.50 till 10.0.100.99

Webserver

There is an apache webserver running on gate
Configuration can be found in /etc/apache2/

Apache listens on port 80 (http) and port 443 (https)

Postfix

We use postfix as mail server on gate for receiving and sending emails.
Configuration can be found in /etc/postfix/

Postfix is listening on port 25 (stmp)

Dovecot IMAP server

Dovecot is used for providing the mails for the users.
Configuration can be found in /etc/dovecot/

Dovecot is listening on port 143 (imap) and 993 (imaps)