[linux教程] Module mod_vhost_limit

出处http://www.nowhere-land.org/programs/mod_vhost_limit/
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* c! ]9 w" }" W5 Z4 }, a3 i7 ZModulemod_vhost_limit  _& m) h, A: b" N6 B

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. M* F1 s2 l! l( \; _Summary7 j7 |% Z3 h* ?9 o9 W
ThisisthemoduleforApacheWebServertorestrictthenumberofsimultaneousconnectionsperavirtualhost.& ?9 D3 r+ {+ N) U( R3 a

$ S4 P: s5 g5 t- SDownload: J9 \4 S" N1 V  i1 r3 P
mod_vhost_limit-0.3.tar.gzUpdate7 Z$ q3 j( z- W% I0 S& f
http://www.nowhere-land.org/prog ... st_limit-0.3.tar.gz
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History
# g! x; I. f4 p2002.02.05
: p; Z/ n- i7 z& t; t8 |1 X9 HInitialrevision0.1
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  e: a0 _" n: a+ K( g2002.11.19
' D& k3 @0 _% u6 C6 E7 k9 K" aversion0.2.7 _3 d0 a0 m" f# B7 Y$ V
*'MaxConnPerVhost'directivewasobsoleted.5 ?) F! k# ]1 K% s' F
Byusing'MaxVhostClients',it'sabletocontrolconnections
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Version0.3.) r$ u9 |8 W: }; u# F) w+ v3 J6 a  n
*Runasthepost-read-requestmodule.[Takato]9 ~3 K/ {5 W* q/ ]
*ReturnsanerrorifExtendedStatusisnotsettoOn.8 O6 ]  n4 G0 C, b* A
*TakesintoaccountstateSERVER_BUSY_LOGandSERVER_BUSY_DNS.0 n3 a7 N5 f* v; h5 H
*Betteraccountsthecurrentvhostconnections.1 l3 z' I' V6 Y# W: `. H
*Changedcomparisondoneonvhostnamestoarawcomparisonof3 i, Y6 z" |: f! q/ v/ ?
pointersonserver_rec.
5 L' T# z6 o7 acontributedbyMathiasHerberts%26lt;Mathias.Herberts@iroise.net%26gt;
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Compilingmod_vhost_limitintoApache
" i! N# [! A3 {+ w! NPresumingyouareusingapache1.3.x,addinginathird-partymoduleisfairlystraightforward.' A* @" w, z3 J3 U$ }

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#apxs-cmod_vhost_limit.c-o/usr/libexec/mod_vhost_limit.so
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#tar-xfapache_%26lt;version%26gt;.tar.gz, X& M6 n& g) E; a% X
#tar-xfmod_vhost_limit.tar.gz
& u1 d# f6 u/ N; ^#cdapache_%26lt;version%26gt;
3 j8 t; k+ n! {$ `* x2 y. V) t#./configure--add-module=../mod_vhost_limit.c--enable-shared=vhost_limit...8 w5 y- h+ W4 {; f4 y
#make
9 I/ ?& ?) U5 m: E& t+ A7 t/ c  Q#cpsrc/modules/extra/mod_vhost_limit.so/usr/libexec/mod_vhost_limit.so
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7 M* k5 @# X2 x4 @; w' t; [! NAndthen,writeinyourhttpd.conf:
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; o& C: Z* h! T/ ?6 TLoadModulevhost_limit_modulelibexec/mod_vhost_limit.so
2 i0 f* v6 U2 v5 d2 kAddModulemod_vhost_limit.c
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: o  ^9 O& e/ W' t4 X4 [6 @Directives
/ n. q4 E! Z: f* l1 mMaxVhostClients6 F; y* T, Z+ P
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, n+ Y8 e8 G4 V) H! B2 OMaxVhostClientsdirective
' g# O# d. m1 s3 q8 a) sSyntax:MaxVhostClientsnumber: F( w# `" Q# F7 F# ~7 j
Context:virtualconf
2 b" W/ C$ O: Q! R/ DOverride:None* I7 w  [- e' n" n" g% b7 b
Status:ThirdParty
- T; V7 x- h5 S  L0 ~Module:mod_vhost_limit
$ o+ F4 i5 a2 Z9 TCompatibility:Apache1.3.5andabove.  M/ H5 s" m- a6 y% u
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TheMaxVhostClientsdirectiveaffectshowmanyconnectionscanbeallowedtousesimultaneouslyperavirtualhost.Itcanbewritteneachvirtualhostcontext.
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Example:
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' X( V' @% e& y, zMaxClients1500 l0 p- S6 t5 V2 `9 F
ExtendedStatusOn  Q8 Q; V3 f, v3 F
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NameVirtualHost*
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* Z8 V1 W) C0 Q%26lt;VirtualHost*%26gt;
2 P7 D* W2 U% M! E- ]/ HServerNameserver1
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MaxVhostClients100; a. y: e/ L; ]5 }* D
%26lt;/VirtualHost%26gt;
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%26lt;VirtualHost*%26gt;# V& Q( x* _: U; X
ServerNameserver2, n" Q6 m2 _- R7 E8 o
DocumentRoot/some/where/2: S# W! i9 ]  j" i7 ^, s' R
MaxVhostClients30$ ^/ ~3 j' w  {! B0 P! u( r" g; P
%26lt;/VirtualHost%26gt;
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%26lt;VirtualHost*%26gt;- \0 N1 O" W' c0 G+ @3 \3 [
ServerNameserver3
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& n5 |0 h2 W+ X9 n* \Inthiscase,server1willbelimitedwith100connections,server2,30connections.
3 z; I$ {6 N; i% U) Z/ v; kserver3willnotbelimited(justlimitedbyMaxClients).
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Iftherequestiscomingoverthelimit,httpdwillonlysendbacka503(TemporaryUnavailable)message.' m, u; v# F6 v7 S

3 X  N/ \3 [, f* K+ ]- BNote:2 G; z' {- M- @0 L- |0 r: Q6 B
Youhavetowritethe'ServerName'beforethe'MaxVhostClients'andset'ExtendedStatus'ontobeavailable.
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Keeponoverloadingagainstthetargetvirtualhost,andchangethevalueforMaxVhostClients.( }- S  \* |; I, \" \3 a
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: l6 S; f8 ^, o4 WgeneratedbyRRDTOOL.
' T9 U# |0 V$ j$ b1.withoutMaxVhostClients(justlimitedbyMaxClients150)
/ W5 @$ ]  ]# P' K5 }- W) s, D2.withMaxVhostClients509 E7 f' I% @. ^' W4 {
3.withMaxVhostClients1009 @) I5 Q: A/ u5 h
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TakatoSatsuma& l5 J' }' O: [$ m; I- J
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$Author:takato$
* O! N+ ]" F" e) d" o, k$Date:2003/02/2616:02:40$
$ @2 }1 b; a- W7 b. R- L% g3 M2 J$Id:index.html,v1.72003/02/2616:02:40takatoExp$
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ApacheHTTPServerVersion1.3