has. Co( igur5 E F)Fi s Guid -- logg3 ( Statem78


Syntax

logg3
( {
  [SchannelSchannel_fes  {
    (Sail tpaer_fes 
       [Svers8E s ( fumber2|vanlimi5 id) ]
       [Ssizetsize_w5 E ]
     |tRysl1g ( kern2|vas6r2| mail2| daem F)| aur  |tRysl1g | lpr2|
                news2|vaucp2|vcr F)| aur priv)| ftp2|
                l17 40 | l17 41 | l17 42 | l17 432|
                l17 44 | l17 45 | l17 46 | l17 47 )
     |tnull );

    [Sseverity (vcriticsi | error2| w4r( 
(o|
foti662|
                 in
-  |tdebug [ l)tol ] |tdyfesicr); ]
    [epF(nt-c15egorg yes_or_no; ]
    [epF(nt-severity yes_or_no; ]
    [epF(nt-tis  yes_or_no; ]
  }; ]

  [Sc15egorg c15egorg_fes  {
    channel_fes ; [ channel_fes ; ... ]
  }; ]
  ...
};

Defi( tiE . leiUsage

Tceologg3 ( statem78 c ( igures a d) vaFiety ar logg3 ( apt E s frw)es sfes .r ser. Its channelsphras ass17ia12s output.s tho1s,t -.55 dapt E s 4le severity l)tols wier a nes tes51 canSesens5 Fanei gher tce2c15egorgsphras .fo selec1 how vaFioustcla t .4arvm6ssage. are)logged.

OnloEB-. logg3 ( statem78 al2anei to defi( easvm1ny channels246 tc15egor e. a. are)win5ed. If tc/is aae.multipleslogg3 ( statem78 s 39 a4con igur5 E F, tce2first defi( (ddetermines2theSl1gg3 (, a6 tw4r( (. are)issuei at) tm totc/is. If tc/is al2no logg3 (tRtatem78 , theSl1gg3 (t5 ( igur5 E F)willsbs:

    l1gg3
( {
        c15egorg default { default_Rysl1g; default_debug; };
        c15egorg panic { default_Rysl1g; default_stderr; };
        c15egorg pa7ket { default_debug; };
        c15egorg ea)etlib { default_debug; };
    };
TheSl1gg3 (t5 ( igur5 E F)isiest5blish i 5s soon as the logg3 ( statem78 al2parsed. If orwa a8 .fo.isd r Et m6ssage. abBItsd uce tiie.4f -pe4en5 r t5 y igur5 E FSail , the logg3 (statem78 m2to ppear first. Ea)e5irvorwado not isd r Et coy igur5 E FSail tpars (im6ssage., we2r15 mm78d alwayl2putf3 (ies slogg3 ( statem78 first soS-pat tcis rule)ne d nses5 Fcoysciousng r15allei irvorwaeversdo ne d a8 .fc parser'svm6ssage. rel17 tei.

Tceochannelsphras

Allsl1g output.goes foSone ah more4"channels"; you canSm1ke asvm1ny 4f -pemtas orwa a8 .

Ea)rg channelSdefi(i E F)m2to 3-Bolde claus6ies51 sayl2wher wh m6ssage. selec1ei at) tm tchannelSgo foSasail , to aEparticularERysl1g facility, o) are4disc4rdwd. It2chanapt E sing al-. limi52t2evm6ssage severity l)tol2th51 willsbs c66ptei by tc/2channelS(default is "in -"), a6 .wher whsto 3-Bolde nes d-gen).1nid tis stamp, tce2c15egorg nes t le/or severity l)tol2(default is2not fo 3-Bolde ly).

Ts sw2.d2null as -pe4des13 5 E F)apt E at) tm channel)willscaus6Sall m6ssage. se8 .fo.it osbs disc4rdwd; or wh apt E s frw)es schannel)aae.mea( (le t.

Ts sfili claus6ican ancolde limi5158E s boer B- how large4tceSail tis ae nwed osbs6ome, a6 .how m1nySvers8E s arv-pe4file willsbs save .each)tis tceSail tis ope( (.

Ts ssize opt E at) ailes23s)simply a haFd ceii3 (ion log.growth. If tc/Sail teversexce dl2theSsize, nes d willsj2to not wri1e.anyth g more4fo.it until tm ail tis reope( (;sexce d3 (ies ssizetdoes not auto55 Ecsing trigg7r2a reope(. Tm tdefault behav or)is to2not limi52t2evsizetarv-pe4file.

If orwaIsev-pe4vers8E logail topt E , nes d willsretaiFd.c51 m6ly.ba7kupSvers8E s arv-pe4file bg r1fesi (ies m when ope(3 (. Fo) nxample,oirvorwachoos .fo keep 3 oldSvers8E s arv-pe4file "lameis.log"Sesensj2to beforeoit2is ope( ( lameis.log.1tis renes dtfo les ..log.2, lameis.log.0tis renes dtfo lameis.log.1, a6 .lameis.logtis renes dtfo les is.log.0. No .ollei vers8E s aae.k6pt4bg default;8anyoexis13 (ilogtail tis simply ppendrd. Tm tunlimi5 iikeyw2.d2al2ryyonymoustgher 99ian2curr nt has. rnleat ..

Exampletusage arv-pe4Rizeta6 .vers8E s apt E s:

    channel)an_nxample_l)tol2{
        file "lameis.log"Svers8E s 34Rizet20m;
        pF(nt-tis  yes;
        pF(nt-c15egorg yes;
    };

Tceoargument frw)es ssysl1g claus6ias a nysl1g facility as describ (d39 thessysl1g m6nusitpage. How sysl1gd willshandle m6ssage. se8 .fo.esisefacility is describ (d39 thessysl1g.5 ( m6nusitpage. If orwahave2a Rystrm whichtus6s)a a)rg oldSvers8E 4f sysl1g th51 anlo us6s)twooarguments to2theSapenl1g() func E F, tcal claus6ias sil ntng ignor (.

Ts sseverity claus6iw2.5sSlike sysl1g's "pF(or ties",sexcep 2t2at tc/y chanal-. 5 Fanei 3f orwaare)wr ti ( straight foSasail .1n wh than us .g2sysl1g. M6ssage. whichtare)not atEleastoarv-pe4severity l)tol2gia)e5willsn-o be selec1ei at) tm tchannel; m6ssage. arvhigher severity l)tols willsbs c66ptei.

If orwa4r Ean .g2sysl1g, the sysl1g.5 ( pF(or ties willsal-. determinevwp51 ea)etusilotpass6s)tcrBIgh. Fo) nxample,odefi( (oa channel)facility 4le severity as daem F a6 odebug 5u1 anlo l1gg3 (tdaem F.w4r( ( viassysl1g.5 ( will caus6Sm6ssage. arvseverity i-fo a6 ofoti66 osbs dropped. If tc/ situs E F)w/is reversei,tgher nes d wr ti (Sm6ssage. arvonloEw4r( ( or higher, sysl1gd w F2 .pF(ntSall m6ssage. it2rnceivei oi)-.-petchannel.

Ts ser ser25an supp y extensia) debugg g in -.55 E F)when i al2an debugg g mode. If tc/ sr ser's globsitdebug l)tol2al2grea5 h than zero, debugg g mode willsbs c1ia). iTs sglobsitdebug l)tol2al setseir whsby start3 (ies snes d wisver2wher tce2"-d" flagsfhe nw (dby a posi Ea) anfeger, o) by send3 (ies srun( (owisver2the SIGUSR1tsignsit(fo) nxample,obyEan .g2"ndc trace"). iTs sglobsitdebug l)tol2chan5 Fset oszero, a6 odebugg g mode turnedSoff, by send3 ( tc swisver2tc sSIGUSR2tsignsit("ndc fotrace"). iAllsdebugg g m6ssage. in tc swisver2have2aEdebug l)tol, a6 .higher debug l)tols2gia) more more4detailei output. Channels2 s51 s5 E fy a .5 E fic debug severity,se.g.

    channel).5 E fic_debug_l)tol2{
        file "foo";
        severity debug 3;
    };

willsget debugg g output.arvl)tol23 o) l6ss a6y)tis tce er ser al2anodebugg g mode, regirdle t of.ts sglobsitdebugg g l)tol. Channels2gher dyfesic severity us6Stc swisver's globsi l)tol2t. determinevwp51 m6ssage. to pri8 .

If pF(nt-tis has be)e5turnedSoF, tce2d1tiva6 tis willsbs logged. pF(nt-tis m6y beos5 E fiedSorw)a Rysl1g channel, 5u1 al2anusilotpoi8 le t s3 66.sysl1g al-. pF(nts the d1tiva6 )tis . If pF(nt-c15egorgsis reques (, es nS-pe4c15egorg of.ts sm6ssage willsbs logged as well. Fi sing,oir pF(nt-severity iseon,v-pe4severity l)tol2ar the m6ssage willsbs logged. Tm tpF(nt- opt E l2m6y beoanei 39 anyo5 mb3 5 E F, a6 .willsalwayl2be pF(nt (d39 thesfhe nwiie.order: tis ,tc15egorg,oseverity. H/is al2an4exampletws re2all tcree pF(nt- opt E l2are)on:

    28-Apr-1997 15:05:32.863 default:
foti66: Ready foSansw/i)15 F(r..

Tceis aae.four)predefi( (ochannels2 351 4r Eanei at) nes d'lrdefaultSl1gg3 (tassfhe nw.. How -pey are)anei anei 3s describ (d39 thesnext)sict E , Tm tc15egorgsphras .

    channel)default_Rysl1g2{
        Rysl1g2daem F;        # sr6
.to sysl1g'lrdaem F)facility
        severity in
-;        # onloEsr6
.pF(or ty in
- a6
.higher
    };

    channel)default_debug {
        file "nes d.run";     # wri1e.to2nes d.rund39
thesw2.5 
( dir Etorg
                              #2Not6: stderr al2anei ins  ad aro"nes d.run"
                              #2if tc/ sr ser2al2Rtart21swher tce2"-f" opt E .
        severity dyfesic;     # l1g atStc swisver's curr nt debug l)tol
    };

    channel)default_stderr {  # wri1es to stderr
        file "<stderr>";      # tcal2as illureri1ia) onlo; tc/is'l2curr ntng
                              #2noSway of s5 E fy3
(tan anfer si4file
                              #2descrip ord39
thescoy igur5 E FSlanguage.
        severity in
-;        # onloEsr6
.pF(or ty in
- a6
.higher
    };

    channel)null {            
        null;                 #2toss a6yth 
g se8 .fo.esisechannel
    };

O 66.aochannelSas defi( (,oit2chanses5 Fredefi( (. Thus.you cannse alFer2tc sbuilt-an2channels2dir Etly, 5u1 you canSmod fy -pe4default l1gg3 (tbotpoi8 3 (t515egor e. at2channels2orwahave2defi( (.

Tceoc15egorgsphras

Tceis aae.m6ly.515egor e., soSyou canSsr6 .theSl1gs orwa a8 .fo.see ws reser2orwa a8 , F(BIt.see3 (ilogsvorwadon'ta a8 . If orwadon'tas5 E fy a2li 1iofichannels2orw)atc15egorg,ol1g m6ssage. iFd.c51 c15egorg will be se8 .fo.ese2default c15egorg ins ad. If orwadon'tas5 E fy a2defaultSc15egorg,othesfhe nwiie."defaultSdefault" al2anei:

    c15egorg default { default_Rysl1g; default_debug; };

Al2an4example,olet'l2say orwa a8 .fo.l1g s15ui81yeea)ets foSasail , 5u1 you al-. a8 .keep -pe4defaultSl1gg3 (tbehav or. You'd s5 E fy tm ahe nwiie:

    channel)my_s15ui81y_channel){
        file "my_s15ui81y_file";
        severity in
-;
    };
    c15egorg s15ui81ye{)my_s15ui81y_channel; default_Rysl1g; default_debug; };

To disc4rdSall m6ssage. in)atc15egorg,os5 E fy tm null channel:

    c15egorg lame-srsvers {4null; };
    c15egorg cfes t{4null; };

Tceoahe nwiie 515egor e. ais avail5ble:

default
TheSc1tch-all. M ly.th gl2Rtillsaisn'tacla t fiedSinfoS515egor e., andSes ySall r6 .up s re. Also,5irvorwadon'tas5 E fy anyo5hannels2orw aSc15egorg,othesdefaultSc15egorg al2anei ins ad. If orwado not defi( ethesdefaultSc15egorg,othesfhe nwiie.defi(i E F)al2anei: c15egorg default { default_Rysl1g; default_debug; };
coy ig
High-l)tol2coy igur5 E FSail tp uce tiie.
parser
Low-l)tol2coy igur5 E FSail tp uce tiie.
15 F(r.
A2shortol1g m6ssage2al2gen).1nid fo) na)rg 15 Fy tc/ sr ser2rnceives.
lame-srsvers
M6ssage.Slike "Les ter ser B- ..."
statis13cs
Statis13cs.
panic
If tc/ sr ser has fo.shu1 atselfadownodue to2an anfer si4d ublem,.at willsl1g -pe4prublemdiFd.cisec15egorg as well as iF)-pe4prublem'l2ni1ia) 515egory. If orwado not defi( ethespanic c15egorg,othesfhe nwiie.defi(i E F al2anei:oc15egorg panic { default_Rysl1g; default_stderr; };
upd1ti
Dyfesicrupd1tis.
ncache
Negi1ia) cac2 e.
xfer-an
ZB-. transf56s tc/ sr ser2al2rnceiv e.
xfer-BIt
ZB-. transf56s tc/ sr ser2al2send3 (.
db
Allsdatabas sov).158E s.
ea)etlib
Debugg g in - ai)-.-petea)ettRystrm. OnloEB-. channel)m6y beos5 E fiedSorw .cisec15egorg, a6 .itvm2to be asail channel. If orwado not defi( ethe ea)etlib c15egorg,othesfhe nwiie.defi(i E F)al2anei:oc15egorg ea)etlib { default_debug; };
pa7ket
Dumpt of.pa7kets2rnceivei 4le se8 . OnloEB-. channel)m6y beos5 E fiedSorw .cisec15egorg, a6 .itvm2to be asail channel. If orwado not defi( ethe pa7ket c15egorg,othesfhe nwiie.defi(i E F)al2anei:oc15egorg pa7ket { default_debug; };
fotify
TheSNOTIFYod utoche.
cfes
M6ssage.Slike "... poi8 s foSasCNAME".
s15ui81y
Apd uve /unapd uve reques s.
os
Ov).158 (tRystrm4prublems.
i(u st
Infer si4co(u stencyo5heck failures.
m639ten58ce
P F(od c m639ten58ceeea)ets.
load
ZB-. load g m6ssage..
rnupo(ue-5hecks
M6ssage.Saris3 (iai)-.rnupo(ueo5heck3 (, suchtas "Mal -.5e reupo(ueo...", "wro (tans. nes t...", "unrel15)ddaddit E si in - ...", "invalidvRRS-ypr ...", a6 ."ba ref56rsi ...".

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