HydraWEB HydraRADIUS User manual

Table of Contents i
HydraWEB Technologies HydraRADIUS Getting Started Guide
Table of Contents
Package Contents ............................................................................................................................ 1
Introduction ...................................................................................................................................... 2
HydraRADIUS Front Panel (Exterior) ...................................................................................... 3
HydraRADIUS Front Panel (Interior) ...................................................................................... 4
HydraRADIUS Unit Back Panel .................................................................................................. 4
HydraRADIUS Standard Features ............................................................................................. 5
Before You Begin ............................................................................................................................. 6
Planning Out Your IP Addresses .....................................................................................................6
Rack-Mounting the HydraRADIUS Unit(s) ........................................................................... 8
Installing the HydraRADIUS Units (with Hot Spare) ........................................................ 9
Installing the HydraRADIUS Unit (without Hot Spare) .................................................10
Configuring HydraRADIUS Unit 1 ..........................................................................................11
Part I. Entering Network Identity Information for Unit 1 ..................................................11
Part II. Configuring Your First Cluster ........................................................................................13
Configuring HydraRADIUS Unit 2 (If Using Hot Spare) ................................................14
Testing Your Connectivity ........................................................................................................15
Logging in to HydraQ and the Administrative Menus ...................................................16
Bootstrapping Hot Spare (If Using Hot Spare) ..................................................................17
Final Check ......................................................................................................................................20
Installing HydraAgents (NT and Unix Servers) .................................................................21
Installing HydraAgents (NT Servers) .......................................................................................... 21
Installing HydraAgents (Unix Servers) ....................................................................................... 23
Where to Go from Here . . . .......................................................................................................26
Updating to a Permanent License ..........................................................................................27
Troubleshooting ............................................................................................................................31
Contacting HydraWEB Technical Support .........................................................................34
Pre-Installation IP Address Chart ...........................................................................................35
Network Identity Worksheet ...................................................................................................36
Cluster Configuration Worksheet ..........................................................................................37
HydraWEB Technologies Limited Warranty ......................................................................38
Agency Approvals .........................................................................................................................39

1 Package Contents
HydraWEB Technologies HydraRADIUS Getting Started Guide
Package Contents
Each HydraRADIUS package should contain the items shown:
HydraOS Administrator's Manual and
Power Cord
Hot Spare/Console Cable
(DB9-F to DB9-F)
Front Mounting Brackets
HydraRADIUS Getting Started Guide
HydraRADIUS Unit

Introduction 2
HydraWEB Technologies HydraRADIUS Getting Started Guide
Introduction
This Getting Started Guide is designed to help you get your HydraRADIUS unit(s) up
and running for the first time and configured for the most basic setup: load
balancing among three back-end RADIUS servers. Figure 1 illustrates this basic setup.
Note: T
HE
H
YDRA
RADIUS
IS A ROUTING DEVICE
,
AND THIS
G
ETTING
S
TARTED
G
UIDE IS INTENDED
FOR NETWORK ADMINISTRATORS WHO HAVE HAD SOME EXPERIENCE INSTALLING AND MANAGING
IP
ROUTERS
. A
KNOWLEDGE OF
RADIUS
SERVERS IS ALSO PRESUMED
. H
YDRA
RADIUS
REQUIRES
H
YDRA
OS
VERSION
2.0.2
OR HIGHER
..
Figure 1 Basic HydraRADIUS LAN Configuration
Because the configuration process introduces you to certain terminology specific to
the Hydra Operating System, you may want to refer to the HydraOS ™ Administrator’s
Manual if at any point you require a more thorough explanation of any HydraOS-
specific term.
Note: T
HROUGHOUT THIS
G
UIDE
,
THE CONVENTION
, “T
YPE
x [E
NTER
]”
WILL BE USED TO MEAN
,
“T
YPE
x
AND PRESS
E
NTER OR
R
ETURN
.”
DNS Server Hub/Switch
Hub/Switch
To R A S
RADIUS
Server
RADIUS
Server
RADIUS
Server
External
Network*
Service Network
* The term "External" in this context
is used strictly in relation to the
HydraRADIUS units. It does not imply a
network external to the overall LAN.
"Virtual" Hydra
HydraRADIUS Unit 2HydraRADIUS Unit 1

3 HydraRADIUS Front Panel (Exterior)
HydraWEB Technologies HydraRADIUS Getting Started Guide
HydraRADIUS Front Panel (Exterior)
LED Color Function
Power Green Lights up and remains lit as long as unit is on. Blinks when system is in sleep mode.
Status Amber System Fault indicator. Lights up if a system fault state is detected.
Drive Green Lights up to indicate activity on the hard drive.
Link 1 Yellow Lights up to indicate Ethernet link between Interface exp0 and the External
Network. Blinks at variable rate to indicate network activity.
100 Mbps Green Lights up if Link 1 detects and i s configured for 100 Mbps operation.
Link 2 Yellow Lights up to indicate Ethernet link between Interface exp1 and the Service
Network. Blinks at variable rate to indicate network activity.
100 Mbps Green Lights up if Link 1 detects and is configured for 100 Mbps operation.
U1/U2 Green Reserved for future use.
Power Status Drive Link Link100Mbps 100Mbps U1 U2
12
Power Drive 100Mbps
Status Link 1 Link 2 U1/U2
100Mbps

HydraRADIUS Front Panel (Interior) 4
HydraWEB Technologies HydraRADIUS Getting Started Guide
HydraRADIUS Front Panel (Interior)
HydraRADIUS Unit Back Panel
Connector Function
Floppy Drive Available for administrative use (e.g., creating an agent diskette or a backup configuration).
On/Off Powers unit on or off.
Sleep Places motherboard in sleep state.
Reset Resets the unit.
Console Port Connects unit to a VT100 terminal or PC through a serial cable (9600, n, 8, 1).
NMI Button Causes an NMI (Non-Maskable Interrupt) to be issued to the system when pressed. Used
to dump system state when system is hung.
Connector Function
Power Supply Connects wall AC to unit 115V/230V, 50/60 Hz power supply.
Interface exp0 Connects unit to the External Network through an Ethernet cable.
Interface exp1 Connects unit to the Service Network (back-end server side) through an Ethernet cable.
Hot Spare Port Connects unit to its (optional) Hot Spare counterpart.*
Floppy Drive Console Port NMI Button
ResetSleepOn/Off
Interface exp0
Interface exp1
Power
Supply Hot Spare Port
* Under normal operations, the selection of which HydraRADIUS unit is Primary and which is the Hot Spare is
random; you may therefore at times see both units referred to as “Hot Spares,” or as a “Hot Spare pair.”

5 HydraRADIUS Standard Features
HydraWEB Technologies HydraRADIUS Getting Started Guide
HydraRADIUS Standard Features
General
• Unlimited number of server licenses
• Two 10/100 Ethernet interfaces
• 1U-chassis for 19” rack mounting (requires only 1.75” height)
Reliability
• Optional Hot Spare failover
Load Balancing/Routing
• HydraWEB MultiPlexer Load Average™ (PLA) statistical load balancing algorithm
• Round-robin load balancing algorithms
• Persistency (IP source/destination)
Performance
• HydraAgent™ intelligent agent technology
• Application-aware load balancing
• HydraASP™ support for all RADIUS servers
• Enhanced custom HydraRADIUS agents available for select RADIUS servers
Management/Administration
• SNMP agent
• Web-based monitoring
• Alerting via trap, e-mail, SysLog, application, others
• Simple remote management
• Integrated Hot Spare management
• Local real-time monitoring
• Historical performance data
• Front panel indicators for link state and status

Before You Begin 6
HydraWEB Technologies HydraRADIUS Getting Started Guide
Before You Begin
Note: T
HE BASIC INSTALLATION COVERED IN THIS
G
ETTING
S
TARTED
G
UIDE ASSUMES ONLY THREE
RADIUS
SERVERS IN A SINGLE CLUSTER
.
To install and configure your HydraRADIUS unit(s) for the basic setup, the following
should already be in place on your LAN:
• A device (e.g., 10/100 hub or switch) with two available Ethernet ports, which will be used
to connect both HydraRADIUS units to your External Network* or testing clients.
• Three RADIUS servers with replicated content.
• A 10/100 hub or switch with two available Ethernet ports (plus enough ports for the back-
end RADIUS servers), which will be used to connect both HydraRADIUS units to your
Service Network.*
In addition, you will need the following:
• A VT-100 terminal or PC running asynchronous terminal emulation software, such as
HyperTerminal® for Windows® (DB9-F to DB9-F serial cable is provided).
• Five Ethernet cables to connect the Hydra units to the External and Service Networks.
Planning Out Your IP Addresses
To make your setup go as smoothly as possible, you should plan out your IP addresses
ahead of time. You are going to be setting up an IP address scheme similar to the
example shown here.
Figure 2 Typical IP Address Setup
To R A S
Hub/Switch
Hub/Switch
External
Network
Service
Network
RADIUS
Server
RADIUS
Server
RADIUS
Server
204.52.249.10
192.168.249.10
192.168.249.14 192.168.249.15 192.168.249.16
192.168.249.12
192.168.249.x =
private addresses on an unused subnet
204.52.249.x =
Internet-routable addresses
192.168.249.11
204.52.249.12
204.52.249.13
(Cluster IP address)
204.52.249.11
(Virtual Interface exp1)
(Interface exp1)
(Virtual Interface exp0) (Interface exp0)
(Interface exp0)
(Interface exp1)
HydraRADIUS Unit 1 HydraRADIUS Unit 2
"Virtual" Hydra
* See Figure 1, page 2, for meaning of the terms External Network and Service Network.

7 Before You Begin
HydraWEB Technologies HydraRADIUS Getting Started Guide
To set up your units with an IP address scheme similar to the one shown, you will
need:
• A range of private addresses on a currently unused subnet of your network.
From this subnet:
• Assign one address to each back-end RADIUS server.
• Reserve two (three, if using Hot Spare) for the HydraRADIUS unit(s) and
“Virtual” Hydra* at their Service Network, or exp1, interface.
Note: A
DDITIONAL ADDRESSES FROM THIS SUBNET MAY BE USED FOR BACK
-
END SERVERS THAT
YOU MAY ADD AT ALATER TIME.
• A range of public, Internet-routable addresses from a subnet of your existing
network. From this subnet:
• Assign one address to serve as your cluster address.
• Reserve two (three, if using Hot Spare) for the HydraRADIUS unit(s) and
“Virtual” Hydra at their External Network, or exp0, interfaces.
With these addresses ready, fill out the Network Identity Worksheet and Cluster
Configuration Worksheet located at the back of this Guide (pages 36-37). You may
want to use the Pre-Installation IP Address Chart on page 35 as an aid. In addition to
IP addresses, you will need to choose hostnames and a password.
Have these Worksheets ready as you go through the configuration.
*Theterm“Virtual” Hydra is used to denote a Hot Spare† pair (i.e., Units 1 and 2) acting in
conjunction as a single, load-balancing entity. “Virtual” is used because there is no corresponding
physical device. Within the HydraOS system, however, the “Virtual” Hydra has a discrete identity
which you define by assigning it a name and its own IP addresses. In HydraOS-specific terminology,
the “Virtual Hydra” is also referred to as the Service Router (SR).
†ThetermsHot Spare and Primary may cause initial confusion. Although Hot Spare may seem to refer
to Unit 2 during the initial configuration (e.g., when you “Bootstrap Hot Spare,” you add in Unit 2),
under normal operations the selection of which HydraRADIUS unit is Primary and which is the Hot
Spare is random. You may therefore see both Units 1 and 2 referred to as “Hot Spares,” or as a “Hot
Spare pair.”

Rack-Mounting the HydraRADIUS Unit(s) 8
HydraWEB Technologies HydraRADIUS Getting Started Guide
Rack-Mounting the HydraRADIUS Unit(s)
To rack-mount your HydraRADIUS unit using the front mounting brackets included
in your package:
1 Attach the front mounting brackets to your rack using screws provided with
your rack.
2 Mount the HydraRADIUS unit by sliding the chassis supports (fastened to
the sides of the unit) into the front mounting brackets attached to the rack,
as shown in Figure 3.
Figure 3 HydraRADIUS Front Rack Mounting Procedure
3 Using bolts provided with your rack, fasten the HydraRADIUS at its front
flanges to the rack, as shown in Figure 4. Hand-tighten screws so that you do
not overtighten them.
Figure 4 Fastening Front Flanges
Chassis supports
Front mounting
bracket
Front flange

9 Installing the HydraRADIUS Units (with Hot Spare)
HydraWEB Technologies HydraRADIUS Getting Started Guide
Installing the HydraRADIUS Units (with Hot Spare)
Figure 5 shows the completed installation layout for a Hot Spare setup.
Figure 5 Installation Layout with Hot Spare
To install the HydraRADIUS units:
1 Connect Unit 1 to Unit 2 through the Hot Spare port on the back of each
unit, using one of the Hot Spare/Console cables provided.
2 Connect Interface exp0 on Unit 1 to the hub/switch on the External
Network side, using a standard Ethernet cable. Connect Interface exp0 on
Unit 2 to the same hub/switch (External Network side).
3 Connect Interface exp1 on Unit 1 to the hub/switch on the Service Network
side, using a standard Ethernet cable. Connect Interface exp1 on Unit 2 to
the same hub/switch (Service Network side).
4 (Not shown.) Connect your PC or VT-100 terminal to the serial port on the
front inside panel of Unit 1, using the second Hot Spare/Console cable
provided.
5 Connect the power cords to the back of each unit, and plug these in to
(grounded) power outlets.
You are now ready to continue with “Configuring HydraRADIUS Unit 1,” page 11.
To R AS
10-18 VDC
0.8 A MAX
Hub/Switch (Service Network)
10-18 VDC
0.8 A MAX
Unit 1 Unit 2
To Power
Outlet
To Power
Outlet
exp1 exp1
exp0 exp0
1
3 3
2 2
55
Hot Spare/Console Cable
Hub/Switch (External Network)
Back-end RADIUS
Servers

Installing the HydraRADIUS Unit (without Hot Spare) 10
HydraWEB Technologies HydraRADIUS Getting Started Guide
Installing the HydraRADIUS Unit (without Hot Spare)
Figure 6 shows the completed installation layout for a non-Hot Spare setup.
Figure 6 Installation Layout without Hot Spare
To install a single HydraRADIUS unit:
1 Connect Interface exp0 on the HydraRADIUS unit to the hub/switch on the
External Network side, using a standard Ethernet cable.
2 Connect Interface exp1 on the HydraRADIUS unit to the hub/switch on the
Service Network side, using a standard Ethernet cable.
3 (Not shown.) Connect your PC or VT-100 terminal to the serial port on the
front inside panel of the HydraRADIUS unit, using the Hot Spare/Console
cable provided.
4 Connect the power cord to the back of the unit, and plug this into a
(grounded) power outlet.
You are now ready to continue with “Configuring HydraRADIUS Unit 1,” page 11.
To R AS
10-18 VDC
0.8 A MAX
Hub/Switch (Service Network)
10-18 VDC
0.8 A MAX
To Power
Outlet
exp1
exp0
2
1
4
Back-end RADIUS
Servers
Hub/Switch (External Network)
HydraRADIUS Unit

11 Configuring HydraRADIUS Unit 1
HydraWEB Technologies HydraRADIUS Getting Started Guide
Configuring HydraRADIUS Unit 1
Configuring HydraRADIUS Unit 1 is a two-part process:
I. Entering Network Identity Information for Unit 1
II. Configuring Your First Cluster
Part I. Entering Network Identity Information for Unit 1
To begin the configuration process:
1 Turn on your PC or set up your VT-100 terminal, and launch your terminal
emulation application. Use the following settings:
• Baud: 9600
• Data bits: 8
• Parity: None
• Stop: 1
• Flow Control: Hardware
2 Power on Unit 1 (if you purchased the Hot Spare option, leave Unit 2 off at
this point.)
The LEDs light up briefly. The Power, Link 1, and Link 2 LEDs remain lit. The
unit goes through an initialization process, and after a moment the following
screen appears, asking you to accept or change your terminal type:
3 Type vt100 [Enter].*
You arrive at the Usage screen.
* Or whatever your terminal type is. If you do not know, use “vt100.”

Configuring HydraRADIUS Unit 1 12
HydraWEB Technologies HydraRADIUS Getting Started Guide
Note: THE USAGE SCREEN DISPLAYS KEY SHORTCUTS THAT MAY NOT BE AVAILABLE FOR SOME
TERMINAL EMULATION SOFTWARE PACKAGES. USE THE [UP] AND [DOWN] ARROW KEYS OR PRESS
[ENTER] TO SCROLL TO THE NEXT SCREEN. FOR SYSTEM HELP AT ANY TIME, PRESS [CTRL-S] (^S). IF
AN HAPPEARS IN THE UPPER LEFT-HAND CORNER OF THE SCREEN, PRESS [CTRL-U] (^U) FOR
CONTEXT-SENSITIVE HELP.
4 Press [Enter] until you arrive at the Installation Type screen:
5 Press [Enter] to select the default, HydraRADIUS.
You arrive at the Network Identity screen, as shown:
6 Enter the information from the Network Identity Worksheet (Unit 1 column)
that you filled out on page 36.

13 Configuring HydraRADIUS Unit 1
HydraWEB Technologies HydraRADIUS Getting Started Guide
7 When finished, press [Enter].
You arrive at the Cluster Configuration screen. You are now ready to
continue with “Part II. Configuring Your First Cluster.”
Part II. Configuring Your First Cluster
To configure your first Cluster:
1 Enter the information from the Cluster Configuration Worksheet that you
filled out on page 37 (you will have to scroll to reach the end of the screen):
2 When finished, press [Enter].
You will be asked if you are satisfied with your replies. You can review all the
information on the screen and choose to accept or, if necessary, re-do your
configuration.
3 To accept, press [Enter]. (You may have to press [Enter] more than once.)
The system writes the configuration and updates iteself. After a few minutes,
you arrive at the All Configured screen.
4 Press [Enter] to return to the login: prompt.
You have now finished configuring Unit 1. If you purchased the Hot Spare option for
redundancy, continue with “Configuring HydraRADIUS Unit 2 (If Using Hot Spare).”
Otherwise, proceed to “Testing Your Connectivity,” page 15. (If you have only a single
HydraRADIUS, you should perform the ping from Unit 1 and test only the back-end
server and gateway IP addresses.)

Configuring HydraRADIUS Unit 2 (If Using Hot Spare) 14
HydraWEB Technologies HydraRADIUS Getting Started Guide
Configuring HydraRADIUS Unit 2 (If Using Hot Spare)
To configure HydraRADIUS Unit 2:
1 Switch the PC or terminal serial cable connection from the Console port on
Unit 1 to the Console port on Unit 2.
2 Power on Unit 2 (leave Unit 1 powered on). Follow the same steps that you
performed for Unit 1 until you arrive at the Installation Type screen:
3 Type 2[Enter] to change the default to Bootstrap Preparation Only.
You arrive at the Network Identity screen.
4 Using your answers from the Unit 2 column of the Network Identity
Worksheet, enter the required information.
5 When finished, press [Enter].
You will be asked if you are satisfied with your replies. At this stage, you can
review all the information on the screen and choose to accept or, if necessary,
re-do your configuration.
6 To accept, press [Enter]. (You may have to press [Enter] more than once.)
The system writes the configuration and updates iteself. After a few minutes,
you arrive at the All Configured screen.
7 Press [Enter] to return to the login: prompt.
You have now finished configuring HydraRADIUS Unit 2 and are ready to continue
with “Testing Your Connectivity,” page 15.

15 Testing Your Connectivity
HydraWEB Technologies HydraRADIUS Getting Started Guide
Testing Your Connectivity
Now that you have configured your HydraRADIUS unit(s), make sure that you can
establish communication with key devices on the network before you “bootstrap”
Unit 2 in to the “Virtual” Hydra for Hot Spare functionality. If a communication
problem exists, this will make it easier to pinpoint exactly where the problem lies.
You should still be logged in to Unit 2 at this point, so you will test the configuration
from Unit 2 by “pinging” various devices on the network, as follows:
1 At the login: prompt, type broot [Enter].
2 Type your root password [Enter] (Network Identity Worksheet, page 36).
The prompt changes to the name of Unit 2 + broot >. For example, if the
name of Unit 2 were hydra2ny, you would see the following prompt:
hydra2ny broot>
3 Ping Unit 1 at Interface exp0 (External Network interface) by typing:
ping <IP address> [Enter].
A normal reponse should look something like this:
The output should include a reponse time in ms. An error response will show
a description of the failure and ret=-1.If you receive an error response ,
refer to “Troubleshooting” on page 31.
4 Press [Ctrl-C] to terminate the ping.
5 Repeat Steps 3 and 4 for the following IP addresses:
• Unit 1, Interface exp1 (Service Network interface)
• Back-end RADIUS Servers 1, 2, and 3
• Your default gateway/router
If all responses are successful, you are ready to continue with “Logging in to HydraQ
and the Administrative Menus.”

Logging in to HydraQ and the Administrative Menus 16
HydraWEB Technologies HydraRADIUS Getting Started Guide
Logging in to HydraQ and the Administrative Menus
Now that you have completed the basic configuration, you must “bootstrap” Unit 2
so that it becomes part of the “Virtual” Hydra. In order to do this, however, you
must first learn how to log in to HydraQ and the Administrative Menus.
HydraQ and the Administrative Menus are the two HydraOS program tools that
you use for administering your HydraRADIUS unit. Each tool has its own format and
is used for different functions or types of configuration and administration tasks.
HydraQ is a command-line utility which uses specific HydraQ commands for each
function. The Administrative Menus is a utility which uses set menu items for each
task.
Note:YOU MUST ALWAYS BE LOGGED IN TO THE SYSTEM (EITHER TO HYDRAQ OR TO HYDRAOS AS A
USER) IN ORDER TO RUN THE ADMINISTRATIVE MENUS. THE ADMINISTRATIVE MENUS ARE, HOWEVER, A
SEPARATE PROGRAM FROM HYDRAQ.
Logging in to HydraQ
Whenever you see the instruction, “Log in to HydraQ as a privileged user,” you do
the following to log in on two levels:
1 At the login: prompt, type hydraq [Enter] and, when prompted, your
root password [Enter].
This brings you inside the HydraQ utility.
2 At the HydraQ> prompt, type login hwadmin [Enter] and, when
prompted, your root password [Enter].
At this point, you will be logged in as a privileged HydraQ user.
Running the Administrative Menus
Whenever you see the instruction, “Run the Administrative Menus,” it normally
means log in to the system first; then, run the Administrative Menus, as follows:
1 Type admin-menu [Enter].
At this point, you will be inside the Administrative Menus. To make
selections within the Admin-Menus, type the number corresponding to
your selection.

17 Bootstrapping Hot Spare (If Using Hot Spare)
HydraWEB Technologies HydraRADIUS Getting Started Guide
Bootstrapping Hot Spare (If Using Hot Spare)
To “bootstrap” Unit 2 so that it becomes part of the “Virtual” Hydra:
1 Switch the PC or terminal serial cable connection back to the Console port
on Unit 1. (It will not be necessary for you to connect to Unit 2 again.)
2 Log in to HydraQ as a privileged user (see page 16 if you have forgotten how).
3 Type set-term vt100 (or whatever is your terminal type) [Enter].
4 Run the Administrative Menus (admin-menu [Enter].)
The Administrative Menus screen appears with a list of five options.
5 Select Hot Spare Administration.
6 Select Bootstrap Hot Spare.
7 In the Host List box, select the Hostname of Unit 1.
In the steps that follow, use your answers from the Network Identity
Worksheet and the column specified.
8 For Name of the Hot Spare PAIR, enter the Hostname from the “Virtual“
Hydra column. This is sometimes referred to as the Name of SR.
9 For IP address of the Hot Spare PAIR, enter the IP address for Interface exp1,
from the Virtual Hydra column.
10 For Name of the better-configured Hot Spare SR, enter the Hostname from the
Unit 1 column.
Note: BECAUSE YOU PERFORMED THE CLUSTER CONFIGURATION STEPS ON UNIT 1 BUT NOT UNIT 2,
UNIT 1 IS CONSIDERED THE “BETTER-CONFIGURED” HOT SPARE SR WITHIN THIS CONTEXT.
11 For actual IP address of <Unit 1 Hostname>, enter the IP address for Interface
exp0, from the Unit 1 column.
12 For “How can I log into <Unit 1 Hostname>,” accept the default of root. Type
your root password, and then confirm [Enter].
13 For “Do you you wish to set the remote agent security key?,” type Yes [Enter].
14 For Name of the less-well-configured Hot Spare SR, enter the Hostname from
the Unit 2 column.

Bootstrapping Hot Spare (If Using Hot Spare) 18
HydraWEB Technologies HydraRADIUS Getting Started Guide
15 For actual IP address of <Unit 2 Hostname>, enter the IP address for Interface
exp1, from the Unit 2 column.
16 For “How can I log into <Unit 2 Hostname>,” accept the default of root. Type
your root password, and then confirm [Enter].
17 For “Do you you wish to set the remote agent security key?,” type Yes [Enter].
18 For “Do you wish to configure interface groups?,” type No [Enter].
19 For “Which failover method do you wish to use?,” follow the instructions on the
screen to make your selection. If you are using hubs, type vmac. If you are
using switches, type garp [Enter].
20 For “What is the virtual IP address of interface exp0?,” enter the exp0 IP address
from the Virtual Hydra column.
21 For “What is the virtual IP address of interface exp1?,” enter the exp1 IP address
from the Virtual Hydra column. (This should be the same IP address that
you entered in Step 9).
22 For DNS name for Hot Spare,you may enter your DNS name, if you wish. Or,
leave blank.
23 For file transfer authentication key, accept the default.
24 For IP address of the better-configured unit, accept the default.
25 For IP address of the less-well-configured unit, accept the default.
26 When asked if you are satisfied with your answers, type Yes [Enter].
Wait while the information is written to the program. This process should
take about a minute.
27 When asked if you wish to distribute HydraWEB configuration files from
<Hostname 1> to <Hostname 2>, type Yes [Enter].
28 When asked if you wish to enable Hot Spare, type Yes [Enter].
After a few moments, you will receive the message: Hot Spare
Configured.
29 Press [Enter] to return to the Administrative Menus.

19 Bootstrapping Hot Spare (If Using Hot Spare)
HydraWEB Technologies HydraRADIUS Getting Started Guide
To verify that both units are now working as Hot Spares, you can run the following
check:
1 Select Show Hot Spare Status.
You should see both units listed. (If your pre-license has expired, the screen
will say that the Hot Spare unit is sick. If you receive this message, contact
Technical Support, page 34, for further assistance.)
2 To select both units, press [Space] to keep the first selection highlighted;
then, press the [Right] arrow key to select the second. Press [Enter].
Note: FOR SOME COMMANDS (ABOVE, FOR EXAMPLE), THE CHOOSER ALLOWS YOU TO MAKE
MULTIPLE SELECTIONS OR CHOOSE MULTIPLE “TARGETS.” THE FIRST TARGET IS AUTOMATICALLY
SELECTED AND MARKED WITH AHYPHEN. PRESSING [SPACE] KEEPS THE FIRST TARGET SELECTED (TO
DESELECT ACHOICE, PRESS [SPACE] AGAIN). USE THE [RIGHT] ARROW TO ADD THE SECOND TARGET.
3 Exit back to the HydraQ> prompt (type 1[Enter] successively).
You will receive a message warning you that your MCF (Master
Configuration File) has changed (this is fine).
4 Type quit [Enter].
You should now be back at the login: prompt. When you next log in to
HydraQ, you will be using the new MCF.
You have now finished bootstrapping Hot Spare and are ready to run the “Final
Check,” page 20, to test your cluster.