Port 8211 is a TCP port generally utilized by the Apache Cassandra database server. It’s used for inter-node communication inside a Cassandra cluster. To test if port 8211 is open on a server, you need to use the next steps:
Telnet is an easy community diagnostic instrument that can be utilized to check if a TCP port is open on a server. To make use of Telnet, open a terminal window or command immediate and kind the next command:
