What Is a Syslog Server?

A syslog server is software or an appliance that collects syslog messages from devices such as routers, switches, firewalls, and servers via UDP, TCP, or TLS on port 514, storing them in searchable files or databases. It parses each message’s priority, timestamp, hostname, facility, severity and content, then indexes the data for instant search, dashboards, alerts and compliance reporting, supporting retention for regulations like PCI DSS, HIPAA and GDPR.