1 Introduction

IBM(R) Domino is an advanced platform for hosting social business applications. It delivers scalable, security rich applications at a low cost. This improves productivity and enhances decision making. Its main features include:

Low ownership costs: By minimizing administration requirements through automation, staff can focus on higher value tasks

Minimal infrastructure: By using less power for providing data storage, network band width and servers, you reduce costs

Rich application environment: Supporting workflow-driven and people-oriented applications that help a wide variety of business operations deliver enhanced results

High availability: Features advanced clustering, replication, server fault recovery and automated diagnostic tools

The Kemp LoadMaster is used to load balance the Domino workload. The LoadMaster offers advanced Layer 4 and Layer 7 server load balancing, SSL Acceleration and a multitude of other advanced Application Delivery Controller (ADC) features. The LoadMaster intelligently and efficiently distributes user traffic among the application servers so that users get the best experience possible. 

1.1 Document Purpose

This document provides the recommended LoadMaster settings used when load balancing the Domino workload. The Kemp Support Team is available to provide solutions for scenarios not explicitly defined. The Kemp support site can be found at: https://support.kemptechnologies.com

1.2 Intended Audience

This document is intended to be read by anyone who is interested in configuring the LoadMaster to optimize Domino Application Server.

1.3 Related Firmware Version

Published with LMOS version 7.2.48.4 LTS. This document has not required substantial changes since 7.2.48.4 LTS. However, the content is in sync with the latest LoadMaster LTS firmware.

2 Template

Kemp has developed a template containing our recommended settings for this workload. You can install this template to help create Virtual Services (VSs) because it automatically populates the settings. You can use the template to easily create the required VSs with the recommended settings. For some workloads, additional manual steps may be required such as assigning a certificate or applying port following, these steps are covered in the document, if needed.

You can remove templates after use and this will not affect deployed services. If needed, you can make changes to any of the VS settings after using the template.

Download released templates from the Templates section on the Kemp Documentation page.

For more information and steps on how to import and use templates, refer to the Virtual Services and Templates, Feature Description on the Kemp Documentation page.

3 Architecture

4 Configure the LoadMaster

The deployed Domino environment determines which of the following setups is used.

4.1 Enable Subnet Originating Requests Globally

It is best practice to enable the Subnet Originating Requests option globally.

In a one-armed setup (where the Virtual Service and Real Servers are on the same network/subnet) Subnet Originating Requests is usually not needed. However, enabling Subnet Originating Requests should not affect the routing in a one-armed setup.

In a two-armed setup where the Virtual Service is on network/subnet A, for example, and the Real Servers are on network B, Subnet Originating Requests should be enabled on LoadMasters with firmware version 7.1-16 and above.

When Subnet Originating Requests is enabled, the Real Server sees traffic originating from 10.20.20.21 (LoadMaster eth1 address) and responds correctly in most scenarios.

With Subnet Originating Requests disabled, the Real Server sees traffic originating from 10.0.0.15 (LoadMaster Virtual Service address on eth0) and responds to eth0 which could cause asymmetric routing.

When Subnet Originating Requests is enabled globally, it is automatically enabled on all Virtual Services. If the Subnet Originating Requests option is disabled globally, you can choose whether to enable Subnet Originating Requests on a per-Virtual Service basis.

To enable Subnet Originating Requests globally, follow the steps below:

1. In the main menu of the LoadMaster User Interface (UI), go to System Configuration > Miscellaneous Options > Network Options.

2. Select the Subnet Originating Requests check box.

4.2 Enable Check Persist Globally

It is recommended that you change the Always Check Persist option to Yes - Accept Changes. Use the following steps:

1. Go to System Configuration > Miscellaneous Options > L7 Configuration.

2. Click the Always Check Persist drop-down arrow and select Yes - Accept Changes.

4.3 Create the Domino Virtual Services

The following sections describe the recommended settings for the Domino Virtual Services.

4.3.1 Create a Domino HTTP Virtual Service

The following are the steps involved and the recommended settings to configure the Domino HTTP Virtual Service:

1. In the main menu of the LoadMaster Web User Interface (WUI), go to Virtual Services > Add New.

2. Type a valid Virtual Address.

3. Type 80 as the Port.

4. Enter a recognizable Service Name, such as Domino HTTP.

5. Click Add this Virtual Service.

6. Configure the settings as recommended in the following table:

Section	Option	Value	Comment
Standard Options	Persistence Mode	Source IP Address
	Timeout	5 minutes
	Scheduling Method	least connection
Real Servers	URL	/

7. Add the Real Servers:

a) Expand the Real Servers section.

b) Click Add New.

c) Type the address of the relevant real server.

d) Complete the other fields as required.

e) Click Add this Real Server then click OK to the pop-up message.

f) Repeat the steps above to add more Real Servers as needed, based on your environment.

4.3.2 Create a Domino HTTP LDAP Virtual Service

The following are the steps involved and the recommended settings to configure the Domino LDAP Virtual Service:

1. In the main menu of the LoadMaster WUI, go to Virtual Services > Add New.

2. Type a valid Virtual Address.

3. Type 389 as the Port.

4. Type a recognizable Service Name, such as Domino HTTP LDAP.

5. Click Add this Virtual Service.

6. Configure the settings as recommended in the following table:

Section	Option	Value	Comment
Standard Options	Persistence Mode	Source IP Address
	Timeout	5 minutes
	Scheduling Method	least connection
	Idle Connection Timeout	660 (seconds)	Click Set Idle Timeout.
Real Servers	Checked Port	389

7. Add the Real Servers:

a) Expand the Real Servers section.

b) Click Add New.

c) Enter the address of the relevant Real Server.

d) Complete the other fields as required.

e) Click Add this Real Server then click OK to the pop-up message.

f) Repeat the steps above to add more Real Servers as needed, based on your environment.

4.3.3 Create a Domino HTTPS Virtual Service

The following are the steps involved and the recommended settings to configure the Domino HTTPS Virtual Service:

1. In the main menu of the LoadMaster WUI, go to Virtual Services > Add New.

2. Type a valid Virtual Address.

3. Type 443 as the Port.

4. Enter a recognizable Service Name, such as Domino HTTPS.

5. Click Add this Virtual Service.

6. Configure the settings as recommended in the following table:

Section	Option	Value	Comment
Standard Options	Persistence Mode	Source IP Address
	Timeout	1 Hour
	Scheduling Method	least connection
	Idle Connection Timeout	900 (seconds)	Click Set Idle Timeout.
Advanced Properties	Add a Port 80 Redirector VS		Click the Add HTTP Redirector button. This automatically creates a redirect on port 80.
Real Servers	URL	/

7. Add the Real Servers:

a) Expand the Real Servers section.

b) Click Add New.

c) Enter the address of the relevant Real Server.

d) Complete the other fields as required.

e) Click Add this Real Server then click OK to the pop-up message.

f) Repeat the steps above to add more Real Servers as needed, based on your environment.

Create a Domino HTTPS HTTP Redirect Virtual Service

Clicking the Add HTTP Redirector button automatically creates a port 80 redirect Virtual Service. This is optional, but the purpose of this Virtual Service is to redirect any clients who have connected using HTTP to the HTTPS Virtual Service. Kemp also recommends changing the Persistence Mode and Real Server Check Method to None.

4.3.4 Create a Domino HTTPS LDAP Virtual Service

The following are the steps involved and the recommended settings to configure the Domino HTTPS LDAP Virtual Service:

1. In the main menu of the LoadMaster WUI, go to Virtual Services > Add New.

2. Enter a valid Virtual Address.

3. Enter 389 as the Port.

4. Enter a recognizable Service Name, such as Domino HTTPS LDAP.

5. Click Add this Virtual Service.

6. Configure the settings as recommended in the following table:

Section	Option	Value
Standard Options	Persistence Mode	Source IP Address
	Timeout	5 minutes
	Scheduling Method	least connection
Real Servers	Check Method	TCP Connection Only
	Checked Port	389

7. Add the Real Servers:

a) Expand the Real Servers section.

b) Click Add New.

c) Enter the address of the relevant Real Server.

d) Complete the other fields as required.

e) Click Add this Real Server then click OK to the pop-up message.

f) Repeat the steps above to add more Real Servers as needed, based on your environment.

4.3.5 Create a Domino HTTPS Offloaded Virtual Service

The following are the steps involved and the recommended settings to configure the Domino HTTPS Offloaded Virtual Service:

1. In the main menu of the LoadMaster WUI, go to Virtual Services > Add New.

2. Type a valid Virtual Address.

3. Type 443 as the Port.

4. Type a recognizable Service Name, such as Domino HTTPS Offloaded.

5. Click Add this Virtual Service.

6. Configure the settings as recommended in the following table:

Section	Option	Value	Comment
Standard Options	Persistence Mode	Source IP Address
	Timeout	1 Hour
	Scheduling Method	least connection
	Idle Connection Timeout	900 seconds
SSL Properties	Enabled	Selected
	Cipher Set	BestPractices
Advanced Properties	Add a Port 80 Redirector VS		Click the Add HTTP Redirector button. This automatically creates a redirect on port 80.
Real Servers	URL	/

7. Add the Real Servers:

a) Expand the Real Servers section.

b) Click Add New.

c) Type the address of the relevant Real Server.

d) Complete the other fields as required.

e) Click Add this Real Server then click OK to the pop-up message.

f) Repeat the steps above to add more Real Servers as needed, based on your environment.

Create a Domino HTTPS HTTP Redirect Virtual Service

Clicking the Add HTTP Redirector button automatically creates a port 80 redirect Virtual Service. This is optional, but the purpose of this Virtual Service is to redirect any clients who have connected using HTTP to the HTTPS Virtual Service. Kemp also recommends changing the Persistence Mode and Real Server Check Method to None.

4.3.6 Create a Domino HTTPS Offloaded LDAP Virtual Service

The following are the steps involved and the recommended settings to configure the Domino HTTPS Offloaded LDAP Virtual Service:

1. In the main menu of the LoadMaster WUI, go to Virtual Services > Add New.

2. Type a valid Virtual Address.

3. Type 389 as the Port.

4. Type a recognizable Service Name, such as Domino HTTPS Offloaded LDAP.

5. Click Add this Virtual Service.

6. Configure the settings as recommended in the following table:

Section	Option	Value
Standard Options	Persistence Mode	Source IP Address
	Timeout	5 Minutes
	Scheduling Method	least connection
Real Servers	Checked Port	389

7. Add the Real Servers:

a) Expand the Real Servers section.

b) Click Add New.

c) Type the address of the relevant Real Server.

d) Complete the other fields as required.

e) Click Add this Real Server then click OK to the pop-up message.

f) Repeat the steps above to add more Real Servers as needed, based on your environment.

4.3.7 Create a Domino HTTPS Re-encrypt Virtual Service

The following are the steps involved and the recommended settings to configure the Domino HTTPS Re-encrypt Virtual Service:

1. In the main menu of the LoadMaster WUI, go to Virtual Services > Add New.

2. Type a valid Virtual Address.

3. Type 443 as the Port.

4. Type a recognizable Service Name, such as Domino HTTPS Re-encrypt.

5. Click Add this Virtual Service.

6. Configure the settings as recommended in the following table:

Section	Option	Value	Comment
Standard Options	Persistence Mode	Source IP Address
	Timeout	1 hour
	Scheduling Method	least connection
	Idle Connection Timeout	900 seconds	Click Set Idle Timeout.
SSL Properties	Enabled	Selected
	Reencrypt	Selected
	Cipher Set	BestPractices
Advanced Properties	Add a Port 80 Redirector VS		Click the Add HTTP Redirector button. This automatically creates a redirect on port 80.
Real Servers	Check Method	HTTPS Protocol
	URL	/

7. Add the Real Servers:

a) Expand the Real Servers section.

b) Click Add New.

c) Type the address of the relevant Real Server.

d) Complete the other fields as required.

e) Click Add this Real Server then click OK to the pop-up message.

f) Repeat the steps above to add more Real Servers as needed, based on your environment.

Create a Domino HTTPS HTTP Redirect Virtual Service

Clicking the Add HTTP Redirector button automatically creates a port 80 redirect Virtual Service. This is optional, but the purpose of this Virtual Service is to redirect any clients who have connected using HTTP to the HTTPS Virtual Service. Kemp also recommends changing the Persistence Mode and Real Server Check Method to None.

4.3.8 Create a Domino HTTPS Re-encrypt LDAP Virtual Service

The following are the steps involved and the recommended settings to configure the Domino HTTPS Re-encrypt LDAP Virtual Service:

1. In the main menu of the LoadMaster WUI, go to Virtual Services > Add New.

2. Type a valid Virtual Address.

3. Type 389 as the Port.

4. Type a recognizable Service Name, such as Domino HTTPS Re-encrypt LDAP.

5. Click Add this Virtual Service.

6. Configure the settings as recommended in the following table:

Section	Option	Value	Comment
Standard Options	Persistence Mode	Source IP Address
	Timeout	5 Minutes
	Scheduling Method	least connection
	Idle Connection Timeout	660 seconds	Click Set Idle Timeout.
Real Servers	Checked Port	389

7. Add the Real Servers:

a) Expand the Real Servers section.

b) Click Add New.

c) Type the address of the relevant Real Server.

d) Complete the other fields as required.

e) Click Add this Real Server then click OK to the pop-up message.

f) Repeat the steps above to add more Real Servers as needed, based on your environment.

4.3.9 Create a Domino IMAP Virtual Service

The following are the steps involved and the recommended settings to configure the Domino IMAP Virtual Service:

1. In the main menu of the LoadMaster WUI, go to Virtual Services > Add New.

2. Type a valid Virtual Address.

3. Type 143 as the Port.

4. Type a recognizable Service Name, such as Domino IMAP.

5. Click Add this Virtual Service.

6. Configure the settings as recommended in the following table:

Section	Option	Value
Standard Options	Scheduling Method	least connection
	Idle Connection Timeout	3600 seconds
Real Servers	Checked Port	143

7. Add the Real Servers:

a) Expand the Real Servers section.

b) Click Add New.

c) Type the address of the relevant Real Server.

d) Complete the other fields as required.

e) Click Add this Real Server then click OK to the pop-up message.

f) Repeat the steps above to add more Real Servers as needed, based on your environment.

4.3.10 Create a Domino POP Virtual Service

The following are the steps involved and the recommended settings to configure the Domino POP Virtual Service:

1. In the main menu of the LoadMaster WUI, go to Virtual Services > Add New.

2. Type a valid Virtual Address.

3. Type 110 as the Port.

4. Type a recognizable Service Name, such as Domino POP.

5. Click Add this Virtual Service.

6. Configure the settings as recommended in the following table:

Section	Option	Value
Standard Options	Scheduling Method	Least connection
	Persistence Options	Source IP Address
	Timeout	1 Minute
	Idle Connection Timeout	3600 seconds
Real Servers	Checked Port	110

7. Add the Real Servers:

a) Expand the Real Servers section.

b) Click Add New.

c) Type the address of the relevant Real Server.

d) Complete the other fields as required.

e) Click Add this Real Server then click OK to the pop-up message.

f) Repeat the steps above to add more Real Servers as needed, based on your environment.

4.3.11 Create a Domino SMTP Virtual Service

The following are the steps involved and the recommended settings to configure the Domino SMPT Virtual Service:

1. In the main menu of the LoadMaster WUI, go to Virtual Services > Add New.

2. Type a valid Virtual Address.

3. Type 25 as the Port.

4. Type a recognizable Service Name, such as Domino SMPT.

5. Click Add this Virtual Service.

6. Configure the settings as recommended in the following table:

Section	Option	Value
Standard Options	Persistence Options	Source IP Address
	Timeout	1 Hour
	Scheduling Method	least connection
	Idle Connection Timeout	120 seconds
Real Servers	Checked Port	25

7. Add the Real Servers:

a) Expand the Real Servers section.

b) Click Add New.

c) Type the address of the relevant Real Server.

d) Complete the other fields as required.

e) Click Add this Real Server then click OK to the pop-up message.

f) Repeat the steps above to add more Real Servers as needed, based on your environment.

References

Unless otherwise specified, the following documents can be found at http://kemptechnologies.com/documentation.

Virtual Services and Templates, Feature Description

Last Updated Date

This document was last updated on 23 March 2021.