Overview & Features

Syslog4j provides client and server implementations of the BSD Syslog protocol (RFC 3164) and the Structured Syslog protocol (RFC 5424).

• Client Protocols: UDP, TCP, TCP over SSL/TLS, Native Unix syslog, and Unix socket
• Server Protocols: UDP, TCP, and TCP over SSL/TLS
• Free software, licensed under the LGPL 2.1 (acceptable Open Source license as stated by the OSI)
• POJO (Plain Ol' Java Object) implementation; no frameworks required
• UDP, TCP, and TCP over SSL/TLS implementations of Syslog protocol (RFC 3164) require no external libraries or JARs
• Unix syslog & Unix socket support verified on Linux, FreeBSD, and Darwin (MacOSX) operating systems
• Extensible coding model for straightforward customization
• TCP and TCP over SSL/TLS implementations run under separate Threads (configurable)
• "BackLog" capability allows logging failures to be properly handled
• Works on JRE/JDK 1.4 and higher
• JUnit Tested, EclEmma used for code coverage analysis
• Support for appending Sequential numbers, Checksum values (CRC32/Adler-32),
  Hashes (SHAx/MD5), and Cryptographic Signatures (HMAC)
• Support for escaping HTML characters to avoid log viewer scripting attacks
• Integrates into Apache Log4j via the Syslog4jAppender more...
• Support for PCI DSS audit logging as per section 10.3 for the PCI DSS 1.2 specification more...
• Compatible with syslogd, syslog-ng from BalaBit IT Security, and other syslog servers

Pre-Requisites

• Structured Syslog protocol (RFC 3164) requires one JAR from the Joda-Time project
• Unix syslog & Unix socket support requires one JAR from the Java Native Access (JNA) project
• Pooled TCP and TCP over SSL/TLS available with the Apache Commons Pool library

Documentation

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