Tarantella home page > KnowHow > Tarantella Enterprise 3 > Base Component > Before you install

Before you install

We've put together a list of things you should check before installing Tarantella Enterprise 3. In each case, "host" means the UNIX system on which you want to install the software.

Are you creating an array of multiple Tarantella servers?

All the Tarantella servers in an array share the same configuration information, and users and sessions can be load-balanced across the servers.

  • Every host in an array must have a web server. You shouldn't mix HTTP and HTTPS web servers in the same array. You need to make the same web server configuration changes on every web server. Every web server must use the same HTTP (or HTTPS) port.
  • You can't mix Tarantella Enterprise 3 and Starter for Linux servers in the same array.
  • All Tarantella servers in an array must have the same version number.
  • Make sure you follow the rest of the checklist for every host in the array.

Does the host meet the Tarantella System Requirements?

Tarantella Enterprise 3 is available on these systems:

  • HP-UX® 11+
  • IBM AIX® 4.3.3+
  • Linux - certified for RedHat, SuSE and Caldera
  • Open UNIX® 8+
  • SPARC Solaris™ 2.6+
  • UnixWare® 7.1.1+

Note: Some optional packs are not available on some systems.

In addition to what's required for normal operation of the host, Tarantella needs:

  • 120MB free disk space, plus another 100MB at install time
  • 128MB RAM
  • 100MHz processor

This assumes the host is only used for Tarantella.

The recommendations increase for each user who'll be using Tarantella on this host.

  • 2.5MB for each user
  • 5MHz for each user
  • For multi-processor systems, one processor for every 20 users, assuming 100MHz processors

Additional memory is required on the host depending on the number and type of applications you plan to use.

  • For each X application, 1.5MB for each user
  • For each X application displayed using Client Window Management, 2.5MB for each user
  • For a full Windows session, 1.7MB for each user
  • For character applications, 0.9MB for each user
  • For each 3270 or 5250 application, 1.5MB for each user

For example, for a host to support 50 typical Tarantella users (up to three X applications each, and one character application), we suggest:

  • RAM: 128 + (50 x (2.5 + 4.5 + 0.9)) = 523MB
  • Processor: 100 + 50 x 5 = 350MHz (or 4 x 100MHz)

Or, for a host to support 80 typical Tarantella users (up to two X applications each, displayed using Client Window Management, and one full Windows session), we suggest:

  • RAM: 128 + (80 x (2.5 + 5 + 1.7)) = 864MB
  • Processor: 100 + 80 x 5 = 500MHz (or 5 x 100MHz)

This is in addition to the requirements for normal operation of the host.

Have you made the necessary operating system modifications?

You may need to make some operating system modifications to use Tarantella.
You must make these changes before you install Tarantella.

Are you allowed to install Tarantella?

  • To install Tarantella, you must log in as root on the host. You need root access to the filesystem, so normally you won't be able to install Tarantella over NFS.
  • Some sites only allow a few people to install software. Check with your IS department before you proceed.

Do you have a web server?

Is the network working correctly?

  • Tarantella uses standard Internet methods for communicating across networks.
  • Client devices must be able to make TCP/IP connections to the host on which Tarantella is installed, on these ports:
    • 3144/tcp - Used for standard (unencrypted) connections between client devices and Tarantella servers.
    • 80/tcp - For accessing an HTTP web server.
    • 443/tcp - For accessing an HTTPS web server.
    • 5307/tcp - For SSL-based connections using the Tarantella Security Pack.
  • We recommend you have a DNS entry for the host, and that all client devices use DNS. You can test the connection between a client and a host by running the telnet program.
  • DNS lookups and reverse lookups should always succeed. For example, nslookup boston.indigo-insurance.com would return a valid IP address, such as 192.168.5.24, and nslookup 192.168.5.24 would return the original DNS name, boston.indigo-insurance.com.
  • If you employ firewalls to protect any part of your network, you should read Using Tarantella with Firewalls, in the Administration Guide, for details on configuring them to work with Tarantella.

Last Modified: 2002/02/22