DNS Quotas

Overview

DNS quotas prevent individual projects from consuming excessive DNS resources. Default values are set platform-wide; administrators override them per project. Quota enforcement is automatic — operations that would exceed a limit return a 413 or 429 error.

Administrator Access Required — This operation requires the admin role. Contact your Polystack administrator if you do not have sufficient permissions.

Default Quota Reference

Resource	Default Limit	Description
`zones`	10	DNS zones per project
`zone_records`	500	Total records across all zones in a project
`zone_recordsets`	500	Total record sets across all zones
`recordset_records`	20	Records within a single record set
`ptr_records`	30	PTR records per project

View Quotas

Current project
Specific project (admin)

Show quotas for the current project

openstack quota show --dns

Show quotas for a specific project

openstack quota show <project-id> --dns

Set Quotas

Set DNS quotas for a project

openstack quota set \
  --dns-zones 50 \
  --dns-zone-records 2000 \
  --dns-zone-recordsets 2000 \
  --dns-recordset-records 50 \
  <project-id>

Reset to platform defaults

openstack quota delete <project-id> --dns

Large projects with automated DNS management (e.g., service-discovery-heavy environments) may need zone_recordsets quotas in the thousands. Review usage regularly and right-size allocations based on actual consumption.

Monitor Quota Usage

Check current usage against limits before planning quota changes:

Show zone count for a project

openstack zone list --project <project-id> -c name | wc -l

Count total record sets across all zones

for zone in $(openstack zone list --project <project-id> -f value -c name); do
  openstack recordset list "$zone" -f value -c name
done | wc -l

Next Steps

Pool Management

Manage nameserver infrastructure that processes zone data

Security

Apply DNS security hardening policies

Admin Troubleshooting

Diagnose quota-related errors and service issues

DNS User Guide

User-facing zone and record management

Core Services

Other Services

Overview

Default Quota Reference

View Quotas

Set Quotas

Monitor Quota Usage

Next Steps

Pool Management

Security

Admin Troubleshooting

DNS User Guide

​Overview

​Default Quota Reference

​View Quotas

​Set Quotas

​Monitor Quota Usage

​Next Steps

Pool Management

Security

Admin Troubleshooting

DNS User Guide

Overview

Default Quota Reference

View Quotas

Set Quotas

Monitor Quota Usage

Next Steps