Tips for configuring a load balancer

Enable persistent or sticky sessions

It is important to configure the load balancer to send all Squared Up requests from a client session to the same Squared Up server.

Different load balancer settings use different names for this setting, for example ‘source address affinity persistence’, ‘server affinity’, ‘session affinity’ or ‘persistence’.

For the F5 load balancer it is called Source address affinity persistence. See F5 Persistence profiles

For the KEMP load balancer Source IP Address would be a suitable choice, configurable for each service from Virtual Services > View/Modify Services > Persistence Options. Source IP Address. See Kemp Persistence Methods

Kemp Load BalancerPersistence

If you are having issues with persistent sessions you may need to switch to cookie insert persistence type.

Configure the load balanced address in DNS Manager

You will need to add an entry for the load balancer in DNS Manager on one of your DNS servers. For example: Forward Lookup Zones > domain > LoadBalancedAddress

Where ‘LoadBalancedAddress’ is your address users will use to get to the load balanced Squared Up, such as lb-ha

The DNS entry should look similar to this:

DNS Entry

For example, the above would mean the URLs used could be http://lb-ha/SquaredUpv3 or http://lb-ha.domain.ltd/SquaredUpv3

Configure delegation and SPNS if using Windows authentication

If you are using Windows authentication ensure that the relevant delegation and SPNs have been configured, as described in detail in this article:

How to configure Windows authentication when Squared Up is installed on load balanced servers

Monitoring load balancers

Dashboard Pack for F5 Big-IP (Comtrade)

Dashboard Pack for Kemp Load Balancers

Webinar: ‘F5 BIG-IP Monitoring with ComTrade Software’:

How to configure Windows authentication on a single dedicated server

How to configure Windows authentication

How to check and modify the application pool identity

How to configure high availability

F5 persistence profiles

Kemp Free LoadMaster software download and Kemp Support

Kemp Persistence Methods

Troubleshooting Kerberos label: Tips for configuring a load balancer keywords: load balanced load-balanced balancer configure configuration configuring persistent persistance sticky rank: 3000