BIG-IQ Certificate
- May 20, 2021
BIG-IQ and BIG-IP devices talk to each other using REST via the restjavad and restnoded daemons. Both BIG-IP and BIG-IQ systems have /var/log/restjavad.0.log and restjavad-audit.0.log files.
When you connect to the BIG-IQ GUI and click and create objects and start tasks it sends REST calls to the REST framework on the BIG-IQ via the restjavad daemon.
Here is an example ... The BIG-IQ checks every 20 secs for availability of its managed devices. You can see the REST calls it sends down to its REST framework and subsequently out on the network if you run:
# tcpdump -nni lo -s0 -A tcp port 8100 | grep /mgmt/shared/identified-devices/config/device-info/available
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on lo, link-type EN10MB (Ethernet), capture size 65535 bytes ....GET /mgmt/shared/identified-devices/config/device-info/available HTTP/1.1