[Kea-users] migrating an existing LDAP configuration

Udo Rader udo.rader at bestsolution.at
Fri Apr 12 12:09:50 UTC 2024


Hi,

even after searching the list archives and the docs, I am not really sure what the migration path for our existing ISC DHCP server could look like.

Currently we are using ISC DHCP in three different places (data centers). They all consume their configuration (subnets, static host entries, DHCP options, ...) from an OpenLDAP server, which is replicated to the different data centers.

Every data center has its own base DN in LDAP, eg

dhcpd.conf in data center1:
[...]
ldap-base-dn "ou=DC1,ou=DHCP,dc=example,dc=com";
[...]

dhcpd.conf in data center 2:
[...]
ldap-base-dn "ou=DC2,ou=DHCP,dc=example,dc=com";
[...]

dhcpd.conf in data center 3:
[...]
ldap-base-dn "ou=DC3,ou=DHCP,dc=example,dc=com";
[...]

Leases are stored locally and they are irrelevant for migration.

I understand that KEA does not support LDAP as a backend and so I would be willing to migrate the existing configuration to something else, but even after reading the docs, I fail to fully understand what my options are.

My best guess so far is that I could replace LDAP by either MySQL or Postgres, configure database replication and have the various local KEA instances connect to the replicated local database instances. Is that correct?

And if so, am I right to assume that for this to work, I need the "Kea Configuration Backend" (which requires a support subscription)?

Thanks for any insights.

Udo
________________________________

Udo Rader, MSc, MBA, Head Unicorn Wrangler
BestSolution.at EDV Systemhaus GmbH
Salurner Straße 15, 6020 Innsbruck, Austria
https://www.BestSolution.at
Reg. Nr. FN 222302s am Firmenbuchgericht Innsbruck
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