DNS Entries for UiPath HAA Active - Active Installation

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Creation Procedure of DNS Entries for UiPath HAA Active Active Installation .

The below content provides a step by step guide to create DNS entries and Delegation for the Linux servers used in the Installation of HAA (High Availability Add-on) in an Active-Active DR deployment model for the UiPath Platform. This is a pre-requisite to be performed before the HAA software in installed on the Linux servers.

  1. Get the IP addresses of the 6 Linux servers where HAA is to be installed (3 in Primary Datacenter/Site and 3 in the DR/Secondary Datacenter/Site)

  1. In the DNS Manager, create 6 new DNS entries. 1 entry for each server.

Note: If DNS entries are already created for the above 6 servers, there is no need to create the DNS entries again. Skip steps 2.1 to 2.4

2.1 Start with the 3 servers in the Primary Datacenter ; Right click on the domain name and add “New Host”

2.2 For the first server (HAA-infra1-1 in this example) - Provide the name, IP Address and click on Add Host

2.3 For the first server (HAA-infra1-2 in this example) - Provide the name, IP Address and click on Add Host

2.4 For the first server (HAA-infra1-3 in this example) - Provide the name, IP Address and click on Add Host

  1. Right click on the domain name and create a ‘New Delegation’

3.1. Click on Next

3.2. Provide the delegation a name and click on ‘Next’

3.3. Click on ‘Add’

3.4. Add the first server from the Primary Datacenter/Site 1 - HAA-infra1-1 in this example

3.5. Click Resolve. Ignore the error if it doesn’t validate.

3.6. Click OK

3.7. Click ‘Add’

3.8. Add the second server from the Primary Datacenter/Site 1 - HAA-infra1-2 in this example

3.9. Click Resolve

3.10. Click Ok

3.11. Click ‘Add’

3.12. Add the third server from the Primary Datacenter/Site 1 - HAA-infra1-3 in this example

3.13. Click Resolve

3.14. Click Ok

3.15. You should now see the 3 servers on the Wizard. Click ‘Next’

3.16. Click ‘Finish’

  1. It is possible to see the new delegation created with the 3 servers added to it

  1. Now add the DNS entries for the 3 servers in the Secondary/DR Datacenter

Note: If DNS entries are already created for the all the 6 servers, there is no need to create the DNS entries again. Skip steps 5.1 to 5.4

5.1. Right click on the domain name and add “New Host”

5.2. For the first server in the Secondary/DR Datacenter (HAA-infra2-1 in this example) - Provide the name, IP Address and click on Add Host

5.3. For the second server in the Secondary/DR Datacenter (HAA-infra2-2 in this example) - Provide the name, IP Address and click on Add Host

5.4. For the third server in the Secondary/DR Datacenter (HAA-infra2-3 in this example) - Provide the name, IP Address and click on Add Host

6. Repeat Step 3 for the 3 servers in the Secondary/DR Datacenter. Right click on the domain name and create a ‘New Delegation’

6.1. Provide the delegation a name and click on ‘Next’

6.2. Click ‘Add’

6.3. Add the first server from the Secondary/DR Datacenter/Site 1 - HAA-infra2-1 in this example. Click Resolve. Ignore any validation errors. Click Ok

6.4. Click ’Add’

6.5. Add the second server from the Secondary/DR Datacenter/Site 1 - HAA-infra2-2 in this example. Click Resolve. Ignore any validation errors. Click Ok

6.6. Click ‘Add’

6.7. Add the third server from the Secondary/DR Datacenter/Site 1 - HAA-infra2-3 in this example. Click Resolve. Ignore any validation errors. Click Ok

6.8. Verify all the 3 servers in the delegation Wizard and Click ‘Next’

6.9. You should now see the new delegation created with the 3 servers added to it

The DNS set up for the UiPath Active -Active HAA installation is now complete