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Chapter 5. Managing DHCP Using Capsule

Satellite can integrate with a DHCP service using your Capsule. A Capsule has multiple DHCP providers that you can use to integrate Satellite with your existing DHCP infrastructure or deploy a new one. You can use the DHCP module of Capsule to query for available IP addresses, add new, and delete existing reservations. Note that your Capsule cannot manage subnet declarations.

Available DHCP providers

5.1. Securing the dhcpd API
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Capsule interacts with DHCP daemon using the dhcpd API to manage DHCP. By default, the dhcpd API listens to any host without access control. You can add an omapi_key to provide basic security.

Procedure

  1. Install the required packages: 

    # dnf install bind-utils
    Copy to Clipboard Toggle word wrap

  2. Generate a key: 

    # dnssec-keygen -r /dev/urandom -a HMAC-MD5 -b 512 -n HOST omapi_key
# cat Komapi_key.+*.private | grep ^Key|cut -d ' ' -f2-
    Copy to Clipboard Toggle word wrap

  3. Use satellite-installer to secure the dhcpd API: 

    # satellite-installer \
--foreman-proxy-dhcp-key-name "My_Name" \
--foreman-proxy-dhcp-key-secret "My_Secret"
    Copy to Clipboard Toggle word wrap
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