syslog
syslog is a standard for message logging. It allows separation of the software that generates messages, the system that stores them, and the software that reports and analyzes them. Each message is labeled with a facility code, indicating the software type generating the message, and assigned a severity level.[1]
Computer system designers may use syslog for system management and security auditing as well as general informational, analysis, and debugging messages. A wide variety of devices, such as printers, routers, and message receivers across many platforms use the syslog standard. This permits the consolidation of logging data from different types of systems in a central repository. Implementations of syslog exist for many operating systems.[1]
Documentation
Request for Comments (RFC)
- 3195 - Reliable Delivery for syslog [EN]
- 5424 - The Syslog Protocol [EN]
- 5425 - Transport Layer Security (TLS) Transport Mapping for Syslog [EN]
- 5426 - Transmission of Syslog Messages over UDP [EN]
- 5427 - Textual Conventions for Syslog Management [EN]
- 5848 - Signed Syslog Messages [EN]
- 6012 - Datagram Transport Layer Security (DTLS) Transport Mapping for Syslog [EN]
- 6587 - Transmission of Syslog Messages over TCP [EN]
Implementations
Extension:DynamicPageList3 (DPL3), version 3.6.4: Error: Error 1054: Unknown column 'ecl1.cl_to' in 'where clause' Function: MediaWiki\Extension\DynamicPageList3\Query::buildAndSelect - syslog Query: SET STATEMENT max_statement_time=10 FOR SELECT DISTINCT IFNULL(cl1.cl_sortkey, REPLACE(CONCAT(CASE `wp_page`.page_namespace WHEN 1 THEN 'Talk:' WHEN 2 THEN 'User:' WHEN 3 THEN 'User_talk:' WHEN 4 THEN 'RaySoft:' WHEN 5 THEN 'RaySoft_talk:' WHEN 6 THEN 'File:' WHEN 7 THEN 'File_talk:' WHEN 8 THEN 'MediaWiki:' WHEN 9 THEN 'MediaWiki_talk:' WHEN 10 THEN 'Template:' WHEN 11 THEN 'Template_talk:' WHEN 12 THEN 'Help:' WHEN 13 THEN 'Help_talk:' WHEN 14 THEN 'Category:' WHEN 15 THEN 'Category_talk:' END, `wp_page`.page_title), '_', ' ')) AS `sortkey`,`wp_page`.page_namespace AS `page_namespace`,`wp_page`.page_id AS `page_id`,`wp_page`.page_title AS `page_title` FROM `wp_page` `wp_page` JOIN `wp_categorylinks` `cl1` ON ((`wp_page`.page_id = cl1.cl_from AND cl1.cl_to = 'syslog')) JOIN `wp_categorylinks` `cl2` ON ((`wp_page`.page_id = cl2.cl_from AND (cl2.cl_to = 'Suite' OR cl2.cl_to = 'Server' OR cl2.cl_to = 'Application' OR cl2.cl_to = 'Shell_Command' OR cl2.cl_to = 'Add-on'))) LEFT OUTER JOIN `wp_categorylinks` `ecl1` ON ((`wp_page`.page_id = ecl1.cl_from AND ecl1.cl_to ='Component')) WHERE `wp_page`.page_is_redirect = 0 AND `wp_page`.page_namespace = 0 AND ecl1.cl_to IS NULL ORDER BY sortkey ASC LIMIT 500