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使用mrtg监控Squid非常全.docx

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使用mrtg监控Squid非常全.docx

使用mrtg监控Squid非常全

使用mrtg监控Squid

（一）

2009/03/0615:

MRTG是一个强大的网络流量监控工具，我试图使用MRTG监控Squid，并成功。

将配置文件

列出让大家参考：

输出结果：

配置文件：

mrtg.cfg

######################################################################

#MultiRouterTrafficGrapher--squidConfigurationFile

######################################################################

#Thisfileisforusewithmrtg-2.0

#CustomizedformonitoringSquidCache

#by

#-changeWorkDirandLoadMIBssettings

#-changeall"hostname"occurrencestoyoursquidhost

#-changeall"chris"occurrencestoyourname/address

#-changethecommunitystringsifrequired（eg:

"public"）

#-changethesnmpportifrequired（eg:

3401）

#Note:

#*Keywordsmuststartatthebeginofaline.

#*Lineswhichfollowakeywordlinewhichdostart

# withablankareappendedtothekeywordline

#*EmptyLinesareignored

#*Linesstartingwitha#signarecomments.

#####################

#GlobalConfiguration

#####################

#Whereshouldthelogfiles,andwebpagesbecreated?

WorkDir:

/opt/mrtg/squid

#--------------------------

#OptionalGlobalParameters

#--------------------------

#Howmanysecondsapartshouldthebrowser（Netscape）be

#instructedtoreloadthepage?

Ifthisisnotdefined,the

#defaultis300seconds（5minutes）.

#Refresh:

600

#Howoftendoyoucallmrtg?

Thedefaultis5minutes.If

#youcallitlessoften,youshouldspecifyithere.This

#doestwothings:

#a）thegeneratedHTMLpagedoescontaintheright

# informationaboutthecallinginterval...

#b）aMETAheaderinthegeneratedHTMLpagewillinstruct

# cachesaboutthetimetoliveofthispage.....

#Inthisexamplewetellmrtgthatwewillbecallingit

#every10minutes.Ifyouarecallingmrtgevery5

#minutes,youcanleavethislinecommentedout.

#Interval:

#Withthisswitchmrtgwillgenerate.metafilesforCERN

#andApacheserverswhichcontainExpirationtagsforthe

#htmlandgiffiles.The*.metafileswillbecreatedin

#thesamedirectoryastheotherfiles,soyoumighthave

#toset"MetaDir."inyoursrm.conffileforthistowork

#NOTE:

IfyouarerunningApache-1.2youcanusethemod_expire

#toachievethesameeffect...seethefilehtaccess-dist

WriteExpires:

Yes

#Ifyouwanttokeepthemrtgiconsinsomeplaceotherthanthe

#workingdirectory,usetheIconDirvaribaletogiveitsurl.

#IconDir:

/mrtgicons/

IconDir:

/images/

LoadMIBs:

/opt/mrtg/squid/mib.txt

##################################################

#ConfigurationforeachTargetyouwanttomonitor

##################################################

#Theconfigurationkeywords"Target"mustbefollowedbya

#uniquename.Thiswillalsobethenameusedforthe

#webpages,logfilesandgifscreatedforthattarget.

#Notethatthe"Target"sectionscanbeauto-generatedwith

#thecfgmakertool.Checkreadme.htmlforinstructions.

# ========

##Target----------------------------------------

#Withthe"Target"keywordyoutellmrtgwhatitshould

#monitor.The"Target"keywordtakesargumentsinawide

#rangeofformats:

#*Themostbasicformatis"port:

community@router"

# Thiswillgenerateatrafficgraphforport'port'

# oftherouter'router'anditwillusethecommunity

# 'community'forthesnmpquery.

#Target[ezwf]:

public@wellfleet-fddi.ethz.ch

#*Sometimesyouaresittingonthewrongsideofthe

# link.AndyouwouldliketohavemrtgreportIncoming

# trafficasoutgoingandvisaversa.Thiscanbeachieved

# byaddingthe'-'signinfrontofthe"Target"

# description.Itflipstheinandoutgoingtrafficrates.

#Target[ezci]:

-1:

public@ezci-ether.ethz.ch

#*YoucanalsoexplicitlydefinetheOIDtoquerybyusingthe

# followingsyntax'OID_1&OID_2:

community@router'

# Thefollowingexamplewillretrieveerrorinputandoutput

# octets/seconinterface1.MRTGneedstographtwovalues,so

# youneedtospecifytwoOID'ssuchastemperatureandhumidity

# orerrorinputanderroroutput.

#Target[ezwf]:

1.3.6.1.2.1.2.2.1.14.1&1.3.6.1.2.1.2.2.1.20.1:

public@myrouter

#*mrtgknowsanumberofsymbolicalSNMPvariable

# names.Seethefilemibhelp.txtforalistofknown

# names.OneexamplearetheifInErrorsandandifOutErrors

# names.Thismeansyoucanspecifytheaboveas:

#Target[ezwf]:

ifInErrors.1&ifOutErrors.1:

public@myrouter

#*ifyouwanttomonitorsomethingwhichdoesnotprovide

# dataviasnmpyoucanusesomeexternalprogramtodo

# thedatagathering.

# Theexternalcommandmustreturn4linesofoutput:

# Line1:

currentstateofthe'incomingbytescounter'

# Line2:

currentstateofthe'outgoingbytescounter'

# Line3:

string,tellingtheuptimeofthetarget.

# Line4:

string,tellingthenameofthetarget.

# Dependingonthetypeofdatayourscriptreturnsyou

# mightwanttousethe'gauge'or'absolute'arguments

# forthe"Options"keyword.

#Target[ezwf]:

`/usr/local/bin/df2mrtg/dev/dsk/c0t2d0s0`

#*Youcanalsouseseveralstatementsinamathematical

# expression.ThiscouldbeusedtoaggregatebothBchannels

# inanISDNconnectionormultipleT1'sthatareaggregated

# intoasinglechannelforgreaterbandwidth.

# Notethewhitespacearroundthetargetdefinitions.

#Target[ezwf]:

public@wellfleetA+1:

public@wellfleetA

# *4:

public@ciscoF

##RouterUptime---------------------------------------

#Incaseswhereyoucalculatetheusedbandwidthfrom

#severalinterfacesyounormalydon'tgettherouteruptime

#androuternamedisplayedonthewebpage.

#Ifthisinterfaceareonthesamerouterandtheuptimeand

#nameshouldbedisplayedneverthelessyouhavetospecify

#itscommunityandaddressagainwiththeRouterUptimekeyword.

#Target[kacisco]:

public@194.64.66.250+2:

public@194.64.66.250

#RouterUptime[kacisco]:

public@194.64.66.250

##MaxBytes-------------------------------------------

#Howmanybytespersecondcanthisportcarry.Sincemost

#linksareratedinbitspersecond,youneedtodivide

#theirmaximumbandwidth（inbits）byeight（8）inordertoget

#bytespersecond.Thisisveryimportanttomakeyour

#unscaledgraphsdisplayrealisticinformation.

#T1=193000,56K=7000,Ethernet=1250000.The"MaxBytes"

#valuewillbeusedbymrtgtodecidewhetheritgota

#validresponsefromtherouter.Ifanumberhigherthan

#"MaxBytes"isreturned,itisignored.Alsoreadthesection

#onAbsMaxforfurtherinfo.

#MaxBytes[ezwf]:

1250000

##Title-----------------------------------------------

#TitlefortheHTMLpagewhichgetsgeneratedforthegraph.

#Title[ezwf]:

TrafficAnalysisforETZC95.1

##PageTop---------------------------------------------

#ThingstoaddtothetopofthegeneratedHTMLpage.Note

#thatyoucanhaveseverallinesoftextaslongasthe

#firstcolumnisempty.

#Notethatthecontinuationlineswillallenduponthesame

#lineinthehtmlpage.Ifyouwantlinebreaksinthegenerated

#htmlusethe'n'sequence.

#PageTop[ezwf]:

TrafficAnalysisforETZC95.1

#OurCampusBackbonerunsoveranFDDIlinen

#withamaximumtransferrateof12.5MegaBytesper

#Second.

##PageFoot---------------------------------------------

#Thingstoaddattheveryendofthemrtggeneratedhtmlpage

#PageFoot[ezwf]:

ThispageismanagedbyBlubber

#--------------------------------------------------

#OptionalTargetConfigurationTags

#--------------------------------------------------

##AddHead-----------------------------------------

#UsethistaglikethePageTopheader,butitscontents

#willbeaddedbetweenand.

#AddHead[ezwf]:

##AbsMax------------------------------------------

#Ifyouaremonitoringalinkwhichcanhandlemoretraffic

#thantheMaxBytesvalue.Eg,alinewhichusescompression

#orsomeframerelaylink,youcanusetheAbsMaxkeyword

#togivetheabsolutemaximumvalueevertobereached.We

#needtoknowthisinordertosortoutunrealisticvalues

#returnedbytherouters.Ifyoudonotsetabsmax,rateup

#willignorevalueshigherthenMaxBytes.

#AbsMax[ezwf]:

2500000

##Unscaled------------------------------------------

#Bydefaulteachgraphisscaledverticallytomakethe

#actualdatavisibleevenwhenitismuchlowerthan

#MaxBytes.Withthe"Unscaled"variableyoucansuppress

#this.It'sargumentisastring,containingoneletter

#foreachgraphyoudon'twanttobescaled:

d=dayw=week

#m=monthy=year.IntheexampleIsuppressscalingforthe

#yearlyandthemonthlygraph.

#Unscaled[ezwf]:

##WithPeak------------------------------------------

#Bydefaultthegraphsonlycontaintheaveragetransfer

#ratesforincomingandoutgoingtraffic.The

#followingoptioninstructsmrtgtodisplaythepeak

#5minutetransferratesinthe[w]eekly,[m]onthlyand

#[y]earlygraph.Intheexamplewedefinethemonthly

#andtheyearlygraphtocontainpeakaswellasaverage

#values.

#WithPeak[ezwf]:

##Supress------------------------------------------

#ByDefaultmrtgproduces4graphs.Withthisoptionyou

#cansuppressthegenerationofselectedgraphs.Theformat

#isanalogtotheaboveoption.Inthisexamplewesuppress

#theyearlygraphasitisquiteemptyinthebeginning.

#Suppress[ezwf]:

##Directory

#Bydefault,mrtgputsallthefilesthatitgeneratesforeach

#route

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