5601
Kibana — visualization and search UI for Elasticsearch
Kibana
What is port 5601?
Port 5601 is used by Kibana, the visualization and analytics layer of the ELK Stack (Elasticsearch, Logstash, Kibana). It provides dashboards, a search interface, and analytics for data stored in Elasticsearch. Kibana must be protected with authentication — an exposed instance can reveal sensitive log data, security events, and application internals.
Quick checks
$
nc -zv example.com 5601
$
nmap -p 5601 example.com
$
telnet example.com 5601