OCF_HEARTBEAT_DNSUPD(7) OCF resource agents OCF_HEARTBEAT_DNSUPD(7) NAME ocf_heartbeat_dnsupdate - IP take-over via dynamic DNS update SYNOPSIS dnsupdate [start | stop | status | monitor | meta-data | validate-all] DESCRIPTION This resource agent manages IP take-over via dynamic DNS updates. SUPPORTED PARAMETERS hostname Either the hostname whose IP address will need to be updated (in case of type=A) or alias whose hostname will need to be updated (in case of type=CNAME). (unique, required, string, no default) type The type of DNS record that need to be updated (A or CNAME). (optional, string, default "A") ip IP address to set. (optional, string, no default) cname The CNAME whose hostname address will need to be updated. (optional, string, no default) ttl Time to live, in seconds, for the DNS record. This affects how soon DNS updates propagate. It should be a reasonable compromise between update speed and DNS server load. If using booth, the ticket timeout is a good start. (optional, integer, default 300) keyfile The file containing the shared secret needed to update the DNS record. Please see the nsupdate man page for the exact syntax. (optional, string, no default) server Which DNS server to send these updates for. When no server is provided, this defaults to the promoted server for the correct zone. (optional, string, no default) serverport Port number on the DNS server. Note: due to a limitation in the nsupdate command, this option will only take effect if you also specify the DNS server! (optional, integer, default 53) nsupdate_opts Additional options to be passed to nsupdate. (optional, string, no default) unregister_on_stop Whether or not to actively remove records on stop. This is not needed for normal operation, since the site taking over the IP address will delete all previous records. (optional, boolean, default false) SUPPORTED ACTIONS This resource agent supports the following actions (operations): start Starts the resource. Suggested minimum timeout: 30s. stop Stops the resource. Suggested minimum timeout: 30s. status Performs a status check. Suggested minimum timeout: 30s. Suggested in- terval: 10s. monitor Performs a detailed status check. Suggested minimum timeout: 30s. Sug- gested interval: 10s. meta-data Retrieves resource agent metadata (internal use only). Suggested mini- mum timeout: 5s. validate-all Performs a validation of the resource configuration. Suggested minimum timeout: 5s. EXAMPLE CRM SHELL The following is an example configuration for a dnsupdate resource using the crm(8) shell: primitive p_dnsupdate ocf:heartbeat:dnsupdate \ params \ hostname=string \ op monitor depth="0" timeout="30s" interval="10s" EXAMPLE PCS The following is an example configuration for a dnsupdate resource using pcs(8) pcs resource create p_dnsupdate ocf:heartbeat:dnsupdate \ hostname=string \ op monitor OCF_CHECK_LEVEL="0" timeout="30s" interval="10s" SEE ALSO http://clusterlabs.org/ AUTHOR ClusterLabs contributors (see the resource agent source for information about individual authors) resource-agents 4.13.0 08/27/2026 OCF_HEARTBEAT_DNSUPD(7)
NAME | SYNOPSIS | DESCRIPTION | SUPPORTED PARAMETERS | SUPPORTED ACTIONS | EXAMPLE CRM SHELL | EXAMPLE PCS | SEE ALSO | AUTHOR
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