Accessing and Configuring a Citrix NetScaler
This chapter describes how to configure a NetScaler after installing the hardware.
In This Chapter
1. Accessing a Citrix NetScaler
2. Configuring a Citrix NetScaler for the First Time
3. Setting up a High Availability Pair
Accessing a Citrix NetScaler
You can access and configure a NetScaler using either the Command Line Interface (CLI) or the Graphical User Interface (GUI). All NetScaler units ship with the default NSIP address of 192.168.100.1 and default subnet mask of 255.255.0.0. Use the NSIP address to access your NetScaler. You can assign a new NSIP and an associated subnet mask during initial configuration.
If you encounter an IP address conflict when deploying multiple NetScaler units, check for the following possible causes:
• Did you select an NSIP that is an IP address already assigned to another device on your network?
• Did you assign the same NSIP to multiple NetScalers?
The NSIP is reachable on all physical ports. The ports on a NetScaler are host ports, not switch ports.
Using the Command Line Interface
You can access the CLI either by connecting a workstation to a console port on the NetScaler or by connecting through secure shell (SSH) from any workstation on the same network.
For general information about the features of the CLI, including SSH, see the Citrix NetScaler Command Reference Guide.
Logging on to the Command Line Interface Using a Console Port
Connect a NetScaler’s serial port to your PC serial port using a crossover cable, and start the Hyper Terminal program or any other terminal emulation program. If the logon prompt does not appear, you may need to press ENTER one or more times to display it. Enter your login credentials and press ENTER. The CLI prompt (>) is displayed on the workstation monitor.
Logging on to the Command Line Interface using SSH
The SSH protocol is the preferred remote access method for accessing a NetScaler remotely from any workstation on the same network. You can use either SSH version 1 (SSH1) or SSH version 2 (SSH2.)
If you do not have a working SSH client, you can download and install any of the following SSH client programs:
• PuTTY
Open Source software supported on multiple platforms. Available at:
http://www.chiark.greenend.org.uk/~sgtatham/putty/
• AttachmateWRQ Reflection for Secure IT
Commercial software supported on the Windows platform. Available at:
http://www.wrq.com/products/reflection/ssh/
• Vandyke Software SecureCRT
Commercial software supported on the Windows platform. Available at:
http://www.vandyke.com/products/securecrt/
All of these programs have been tested by the Citrix NetScaler team, which has verified that they work correctly with a NetScaler. Other programs may also work correctly, but have not been tested.
To verify that the SSH client is installed properly, use it to connect to any device on your network that accepts SSH connections.
To log on to a NetScaler using an SSH client
1. On your workstation, run the SSH client.
2. Use the NSIP you assigned to your NetScaler during initial configuration, selecting either SSH1 or SSH2 as the protocol.
3. Log on as nsroot, using the administrative password you assigned during initial configuration.
The following output appears on the your SSH client screen:
login as: nsroot
nsroot@10.102.29.60's password:
Last login: Wed May 23 17:18:31 2007
Done
Using the Graphical User Interface
The Graphical User Interface has two main components:
• Configuration Utility
• Statistical Utility
The system requirements for a workstation running the GUI are as follows:
• For Windows-based workstations, a Pentium® 166 MHz or faster processor with at least 48 MB of RAM is recommended for applets running in a browser using a Java plug-in product. You should have 40 MB free disk space before installing the plug-in.
• For Linux-based workstations, a Pentium platform running Linux kernel v2.2.12 or above, and glibc version 2.12-11 or later. A minimum of 32 MB RAM is required, and 48 MB RAM is recommended. The workstation should support 16-bit color mode, KDE and KWM window managers used in conjunction, with displays set to local hosts.
• For Solaris-based workstations, a Sun running either Solaris 2.6, Solaris 7, or Solaris 8, and the Java 2 Runtime Environment, Standard Edition, version 1.4.2_04 or later.
Your workstation must have a supported web browser and version 1.4.2_04 or above of the Java® applet plug-in installed to access the Configuration Utility and the Statistical Utility. The following Web browsers and platforms have been tested and can be used to access the GUI:
• Internet Explorer version 4, 5, or 5.5 on Windows 95/98/2000/NT
• Internet Explorer version 6 or 7 on Windows XP Home or Professional editions
• Netscape 4.51/4.61/4.72/4.75 on Windows 95/98/2000/NT
• Netscape 4.51 on Solaris 5.6/5.7/5.8
• Netscape 4.61/4.72/4.75 on Red Hat Linux 6.2
• Netscape 4.77 on Windows 2000/NT, or on Windows XP Home or Professional editions
• Netscape 6.2 on Windows 98/2000/NT, or on Windows XP Home or Professional editions
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