Syslog definition

Syslog

(also system logging protocol)

Syslog, short for system logging protocol, is a standard for sending and receiving messages in the form of logs on a network. It allows different devices and applications to centralize the logs in a single location for easier management, review, and troubleshooting.

See also: DNS server, event log, log, log file, VPN firewall

Syslog examples

Network devices: Routers, switches, and firewalls use syslog to report network activities and incidents, making it easier to monitor network performance and identify potential issues.
Application servers: Web, mail, and database servers use syslog to log application activities and errors, providing a valuable resource for troubleshooting and performance analysis.

Advantages and disadvantages of syslog

Pros:

Centralization: Syslog allows for centralized collection and analysis of log data, providing a broad overview of network or system activity.
Compatibility: It’s a universal standard used by many different types of devices and applications, making it versatile.

Cons:

Security: Syslog data is often transmitted unencrypted, making it susceptible to eavesdropping. The use of secure protocols like syslog over SSL/TLS can mitigate this issue.
Overhead: The continuous transmission of log data can consume network resources.

Using syslog

Consider using a syslog server that supports secure transmission protocols to ensure the privacy and integrity of your log data.
Set up meaningful and efficient filtering to avoid being overwhelmed by large volumes of log data.