User`s guide

Matrix DFE Series and N-SA User’s Guide 6-1
6
Managing Syslog
ThischapterprovidesinformationaboutthefollowingsystemloggingproceduresontheMatrix
DFESeriesandN‐SAdevices.
Logging Overview
TheSyslogimplementationontheMatrixDFESeriesorN‐SAdeviceusesaseriesofsystem
loggingmessagestotrackdeviceactivityandstatus.Thesemessagesinformusersaboutsimple
changesinoperationalstatusorwarnofmoresevereissuesthatmayaffectsystemoperations.
Loggingcanbeconfiguredto
displaymessagesatavarietyofdifferentseveritylevelsabout
application‐relatederrorconditionsoccurringonthedevice.
AsdefinedinRFC3164,theSyslogprotocolallowsadministratorstoplacemessagesintooneof
severalbroadcategories.Thesebroadcategoriesgenerallyconsistofthefacilitythatgenerated
them,alongwithan
indicationoftheseverityofthemessage.Thishelpsadministratorsprioritize
andselectivelyfiltermessages,whilealsogivingthemtheabilitytoplacestatusorinformative
messagesinafileforlaterreview.Administratorscandecidetohaveallmessagesstoredlocallyas
wellastohaveallmessagesof
ahighseverityforwardedtoanotherdevice.Theycanalsohave
messagesfromaparticularfacilitysenttosomeoralloftheusersofthedevice,anddisplayedon
thesystemconsole.Howeveryoudecidetoconfigurethedispositionoftheeventmessages,the
processofhavingthemsentto
aSyslogcollectorgenerallyconsistsof:
• Determiningwhichfacilitymessagesandwhichseveritylevelswillbeforwarded.
• Definingtheremotereceiver,alsoknownastheSyslogserver.
Forexample,youmaywantallmessagesthataregeneratedbythemailfacilitytobeforwardedto
oneparticularSyslogserver.
Usethe
commandsinthischaptertocompletethesetasksandcustomizeyourlogging
configuration.
For information about... Refer to page...
Logging Overview 6-1
Interpreting Messages 6-2
Configuring Syslog Servers, Applications, and Console Logging 6-3