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Setting Up Network Services
Before you can install, you must set up the following for your network service:
 DNS: You must have a fully qualied domain name for each server’s IP addess in the
DNS system. The DNS zone must have the reverse-lookup record for the name and
address pair. Not having a stable, functioning DNS system with reverse lookup leads
to service failures and unexpected behaviors.
 Static IP Address: Make sure you have a static IP address already planned and
assigned to the server.
 DHCP: Do not assign dynamic IP addresses to servers. If your server gets its IP
address through DHCP, set up a static mapping in the DHCP server, so your server
gets (via its Ethernet address) the same IP address every time.
 Firewall or routing: In addition to any rewall running on your server, the subnet
router might have specic network trac restrictions in place. Make sure the server’s
IP address is available for the trac it will handle and the services you will run.
Connecting to the Directory During Installation
To use a server as an Open Directory master, make sure it has an active Ethernet
connection to a secure network before installation and initial setup. If the server
doesn’t have an active directory connection during setup, you can create an Open
Directory master later using Server Admin or Server Preferences.
To use a server bound to another directory server (Open Directory, Active Directory,
or other OpenLDAP), make sure you have the DNS name and IP address of the master
directory server before installation.
SSH During Installation
When you start up a computer from a server installation disc, SSH starts so that remote
installations can be performed.
Important: Before you install or reinstall Mac OS X Server, make sure the network
is secure because SSH gives others access to the computer over the network. For
example, design the network topology so you can make the server computer’s subnet
accessible only to trusted users.
About the Server Install Disc
You can install server software using the Mac OS X Server Install Disc. This installation
disc contains everything to install Mac OS X Server.
82 Chapter 5 Installation and Deployment