2001-08-21 2016-04-26 The syslog protocol utilizes numerical facility and severity values. IETF Review 0 kernel messages 1 user-level messages 2 mail system 3 system daemons 4 security/authorization messages 5 messages generated internally by syslogd 6 line printer subsystem 7 network news subsystem 8 UUCP subsystem 9 clock daemon 10 security/authorization messages 11 FTP daemon 12 NTP subsystem 13 log audit 14 log alert 15 clock daemon 16 local use 0 (local0) 17 local use 1 (local1) 18 local use 2 (local2) 19 local use 3 (local3) 20 local use 4 (local4) 21 local use 5 (local5) 22 local use 6 (local6) 23 local use 7 (local7) Various operating systems have been found to utilize Facilities 4, 10, 13 and 14 for security/authorization, audit, and alert messages which seem to be similar. Various operating systems have been found to utilize both Facilities 9 and 15 for clock (cron/at) messages. IETF Review REGISTRY FULL 0 Emergency: system is unusable 1 Alert: action must be taken immediately 2 Critical: critical conditions 3 Error: error conditions 4 Warning: warning conditions 5 Notice: normal but significant condition 6 Informational: informational messages 7 Debug: debug-level messages Standards Action 1 Defined in IETF Review The registration rules for this registry will be that new Structured Data ID values and new Parameter Name values must be registered via IETF Review. In addition, once SD-IDs and SD-PARAMs are defined, the syntax and semantics of these registrations must not be altered. In the event that modifications of existing registry items are required, a new SD-ID or SD-PARAM must be created, leaving the older one unchanged. Finally, the IANA does not register, and will not control SD-IDs or SD-PARAMs \with an "@" sign (ABNF %d64) in them. timeQuality OPTIONAL tzKnown OPTIONAL isSynced OPTIONAL syncAccuracy OPTIONAL origin OPTIONAL ip OPTIONAL enterpriseId OPTIONAL software OPTIONAL swVersion OPTIONAL meta OPTIONAL sequenceId OPTIONAL sysUpTime OPTIONAL language OPTIONAL snmp OPTIONAL ctxEngine OPTIONAL ctxName OPTIONAL v<N> OPTIONAL l<N> OPTIONAL o<N> OPTIONAL x<N> OPTIONAL c<N> OPTIONAL C<N> OPTIONAL u<N> OPTIONAL d<N> OPTIONAL i<N> OPTIONAL n<N> OPTIONAL p<N> OPTIONAL t<N> OPTIONAL a<N> OPTIONAL alarm OPTIONAL resource MANDATORY probableCause MANDATORY perceivedSeverity MANDATORY eventType OPTIONAL trendIndication OPTIONAL resourceURI OPTIONAL ssign MANDATORY VER MANDATORY RSID MANDATORY SG MANDATORY SPRI MANDATORY GBC MANDATORY FMN MANDATORY CNT MANDATORY HB MANDATORY SIGN MANDATORY ssign-cert MANDATORY VER MANDATORY RSID MANDATORY SG MANDATORY SPRI MANDATORY TPBL MANDATORY INDEX MANDATORY FLEN MANDATORY FRAG MANDATORY SIGN MANDATORY PCNNode OPTIONAL ID MANDATORY Rtyp MANDATORY PCNTerm OPTIONAL IngrID MANDATORY EgrID MANDATORY TermRate MANDATORY FCnt MANDATORY IETF Review 00 Reserved 01 Defined in 02-50 Unassigned 51-99 Reserved for Private Use IETF Review New values are assigned incrementally from 0-9, then from a-z, then from A-Z. 0 01 Reserved 1 01 SHA1 2 01 SHA256 IETF Review The range for values is 0-9. 0 01 Reserved 1 01 OpenPGP DSA IETF Review 0 There is only one Signature Group. 1 Each PRI value is associated with its own Signature Group. 2 Each Signature Group contains a range of PRI Values. 3 Signature Groups are not assigned with any of the above relationships to PRI values of the syslog messages they sign. 4-7 Unassigned 8-9 Reserved for Private Use IETF Review Upper-case letters are assigned by IANA. Lower-case letters are vendor-specific. C a PKIX certificate P an OpenPGP certificate K the public key whose corresponding private key is used to sign the messages N no key information sent, key is pre-distributed U installation-specific key exchange information