Plesk agent certificates expired. How to create and install new Plesk Agent certificates for Service Node?
You may use agent_certmng utility. It generates new Plesk Agent certificates for certain Service Node.
Example: There is Service Node with Id=7, id is shown in PPA->Infrastructure->Service Nodes, like 7 IIS Service Node. In this case command for generation and installtion new certificate will be:
/usr/local/ppa/bin/agent_certmng -c -type sn -hostid 7 -install
Please note this command will work since PPA 11.5 UPDATE #07 only.