ocf_heartbeat_portblock - Block and unblocks access to TCP and UDP
portblock [start | stop | status | monitor | meta-data | validate-all]
Resource script for portblock. It is used to temporarily block ports
using iptables. In addition, it may allow for faster TCP reconnects for
clients on failover. Use that if there are long lived TCP connections
to an HA service. This feature is enabled by setting the tickle_dir
parameter and only in concert with action set to unblock. Note that the
tickle ACK function is new as of version 3.0.2 and hasn't yet seen
The protocol used to be blocked/unblocked. (required, string, no
The port number used to be blocked/unblocked. (required, integer,
The action (block/unblock) to be done on the protocol::portno.
(required, string, no default)
The IP address used to be blocked/unblocked. (optional, string,
The shared or local directory (_must_ be absolute path) which
stores the established TCP connections. (optional, string, no
If the tickle_dir is a local directory, then the TCP connection
state file has to be replicated to other nodes in the cluster. It
can be csync2 (default), some wrapper of rsync, or whatever. It
takes the file name as a single argument. For csync2, set it to
"csync2 -xv". (optional, string, no default)
This resource agent supports the following actions (operations):
Starts the resource. Suggested minimum timeout: 20.
Stops the resource. Suggested minimum timeout: 20.
Performs a status check. Suggested minimum timeout: 10. Suggested
Performs a detailed status check. Suggested minimum timeout: 10.
Suggested interval: 10.
Retrieves resource agent metadata (internal use only). Suggested
minimum timeout: 5.
Performs a validation of the resource configuration. Suggested
minimum timeout: 5.
The following is an example configuration for a portblock resource
using the crm(8) shell:
primitive example_portblock ocf:heartbeat:portblock \
op monitor depth="0" timeout="10" interval="10"
Linux-HA contributors (see the resource agent source for information
about individual authors)