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監(jiān)控網(wǎng)絡(luò)神器---Cacti 安裝與配置

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Cacti是一套基于PHP,MySQL,SNMP及RRDTool開發(fā)的網(wǎng)絡(luò)流量監(jiān)測(cè)圖形分析工具。它結(jié)合了LAMP的功能,把網(wǎng)絡(luò)監(jiān)控做的淋漓盡致。

Cacti是一款非常實(shí)用的網(wǎng)絡(luò)流量監(jiān)測(cè)圖形分析工具,叫它為監(jiān)控網(wǎng)絡(luò)神器也不為過,讓我們看看他的安裝和配置!

  一、Cacti的安裝

  1.安裝環(huán)境:RedHat AS 4

  2.安裝Apache、MySQL、PHP

  (1).安裝MySQL

  下載地址:http://dev.mysql.com/downloads/mysql/5.0.html

  //查看系統(tǒng)中是否已經(jīng)安裝了MySQL,如果是卸載所有以mysql開頭的包。

  # rpm –qa | grep mysql

  # rpm –e mysql-*

  //查找/etc/my.cnf(MySQL的選項(xiàng)配置文件),如果有請(qǐng)刪除它,以免影響新安裝版本的啟動(dòng)。

  # rm –f /etc/my.cnf

  # tar –zxvf mysql-standard-5.0.27-linux-i686-glibc23.tar.gz

  # cp –rf mysql-standard-5.0.27-linux-i686-glibc23 /usr/local/

  //建立符號(hào)鏈接,如果以后有新版本的MySQL的話,你可以僅僅將源碼解壓到新的路徑,然后重新做一個(gè)符號(hào)鏈接就可以了。這樣非常方便,數(shù)據(jù)也更加安全。

  # ln –s mysql-standard-5.0.27-linux-i686-glibc23 /usr/local/mysql

  //添加用于啟動(dòng)MySQL的用戶及用戶組(如果以前安裝過MySQl,用戶及用戶組可能已存在)。

  # useradd mysql

  # groupadd mysql

  //初始化授權(quán)表

  # cd /usr/local/mysql

  # scripts/mysql_install_db

  //修改MySQl目錄的所有權(quán)

  # cd /usr/local

  # chgrp –R mysql mysql-standard-5.0.27-linux-i686-glibc23

  # chgrp –R mysql mysql

  # chown –R mysql mysql-standard-5.0.27-linux-i686-glibc23/data

  # chown –R mysql mysql/data

  # ln –s /usr/local/mysql/bin/* /usr/local/bin/

  //啟動(dòng)Mysql

  # bin/safe_mysqld --user=mysql &

  //配置系統(tǒng)啟動(dòng)時(shí)自動(dòng)啟動(dòng)MySQl

  # cp support-files/mysql.server /etc/rc.d/init.d/mysqld

  # chkconfig --add mysqld

  //修改MySQL的***連接數(shù)

  # vi /etc/my.cnf

  //添加以下行

  [mysqld]

  set-variable=max_connections=1000

  set-variable=max_user_connections=500

  set-variable=wait_timeout=200

  //max_connections設(shè)置***連接數(shù)為1000

  //max_user_connections設(shè)置每用戶***連接數(shù)為500

  //wait_timeout表示200秒后將關(guān)閉空閑(IDLE)的連接,但是對(duì)正在工作的連接不影響。

  //保存退出,并重新啟動(dòng)MySQL

  //重新啟動(dòng)MySQL后使用下面的命令查看修改是否成功

  # mysqladmin -uroot -p variables

  Password:

  //可以看到以下項(xiàng)說明修改成功

  | max_connections | 1000

  | max_user_connections | 500

  | wait_timeout | 200

  (2).安裝Apache

  下載地址:http://httpd.apache.org/

  # tar –zxvf httpd-2.2.4.tar.gz

  # cd httpd-2.2.4

  # ./configure --prefix=/usr/local/apache --enable-so

  //編譯時(shí)加上加載模塊參數(shù)--enable-so

  # make

  # make install

  #vi /usr/local/apache/conf/httpd.conf

  //修改Apache配置文件,添加ServerName www.yourdomain.com (或ServerName 本機(jī)ip)

  # vi /etc/rc.d/rc.local

  //在rc.local上加入一行/usr/local/apache/bin/apachectl –k start,系統(tǒng)啟動(dòng)時(shí)啟動(dòng)Apache服務(wù)。

#p#

  (3).安裝PHP

  先安裝zlib,freetype,libpng,jpeg以便于讓PHP支持GD庫(Cacti的WeatherMap插件必須要較新GD庫的支持)

  庫文件下載地址:http://oss.oetiker.ch/rrdtool/pub/libs/

  1).安裝zlib

  tar zlib-1.2.3.tar.gz

  cd zlib-1.2.3

  ./configure --prefix=/usr/local/zlib

  make

  make install

  2).安裝libpng

  tar zxvf libpng-1.2.16.tar.tar

  cd libpng-1.2.16

  cd scripts/

  mv makefile.linux ../makefile

  cd ..

  make

  make install

  注意,這里的makefile不是用./configure生成,而是直接從scripts/里拷一個(gè)

  3).安裝freetype

  tar zxvf freetype-2.3.4 .tar.gz

  cd freetype-2.3.4

  ./configure --prefix=/usr/local/freetype

  make

  make install

  4).安裝Jpeg

  tar -zxf jpegsrc-1.v6b.tar.gz

  cd jpeg-6b/

  mkdir /usr/local/libjpeg

  mkdir /usr/local/libjpeg/include

  mkdir /usr/local/libjpeg/bin

  mkdir /usr/local/libjpeg/lib

  mkdir /usr/local/libjpeg/man

  mkdir /usr/local/libjpeg/man/man1

  //可以用mkdir -p /usr/local/libjpeg/man/man1 一步創(chuàng)建多層目錄

  ./configure --prefix=/usr/local/libjpeg --enable-shared --enable-static

  make && make install

  注意,這里configure一定要帶--enable-shared參數(shù),不然,不會(huì)生成共享庫

  5).安裝Fontconfig

  tar -zxvf fontconfig-2.4.2.tar.gz

  cd fontconfig-2.4.2

  ./configure --with-freetype-config=/usr/local/freetype

  make

  make install

  6).安裝GD

  tar -zxvf gd-2.0.34.tar.gz

  cd gd-2.0.34

  ./configure --prefix=/usr/local/libgd --with-png --with-freetype=/usr/local/freetype --with-jpeg=/usr/local/libjpeg

  make

  make install

  編譯時(shí)顯示以下信息:

  ** Configuration summary for gd 2.0.34:

  Support for PNG library: yes

  Support for JPEG library: yes

  Support for Freetype 2.x library: yes

  Support for Fontconfig library: yes

  Support for Xpm library: no

  Support for pthreads: yes

  7).編輯/etc/ld.so.conf,添加以下幾行到此文件中。

  /usr/local/zlib/lib

  /usr/local/freetype/lib

  /usr/local/libjpeg/lib

  /usr/local/libgd/lib

  并執(zhí)行l(wèi)dconfig命令,使用動(dòng)態(tài)裝入器裝載找到共享庫

  8).安裝libxml,RedHat AS 4默認(rèn)安裝libxml包,但版本太低,PHP5需要更高版本的libxml包。

  # tar –zxvf libxml2-2.6.25.tar.gz

  # cd libxml2-2.6.25

  # ./configure

  # make

  # make install

  9).安裝PHP

  PHP下載地址:http://www.php.net/downloads.php#v5

  tar -zxvf php-5.2.3.tar.gz

  cd php-5.2.3

  # ./configure --prefix=/usr/local/php --with-apxs2=/usr/local/apache/bin/apxs --with-mysql=/usr/local/mysql --with-gd=/usr/local/libgd --enable-gd-native-ttf --with-ttf --enable-gd-jis-conv --with-freetype-dir=/usr/local/freetype --with-jpeg-dir=/usr/local/libjpeg --with-png-dir=/usr --with-zlib-dir=/usr/local/zlib --enable-xml --enable-mbstring --enable-sockets

  # make

  # make install

  # cp php.ini-recommended /usr/local/php/lib/php.ini

  # ln –s /usr/local/php/bin/* /usr/local/bin/

  # vi /usr/local/apache/conf/httpd.conf

  查找AddType application/x-compress .Z

  AddType application/x-gzip .gz .tgz

  在其下加入 AddType application/x-tar .tgz

  AddType application/x-httpd-php .php

  AddType image/x-icon .ico

  修改DirectoryIndex 行,添加index.php

  修改為DirectoryIndex index.php index.html index.html.var

  # vi /usr/local/apache/htdocs/test.php

  添加以下行:

  //php標(biāo)記(用<代替[)

  [?php

  Phpinfo();

  ?]

  wq保存退出。

  # /usr/local/apache/bin/apachectl –k stop

  #/usr/local/apache/bin/apachectl –k start

  在瀏覽器中輸入:http://www.yourdomain.com/test.php進(jìn)行測(cè)試。

  對(duì)php編譯選項(xiàng)的解釋:

  --prefix=/usr/local/php //指定PHP的安裝目錄

  --with-apxs2=/usr/local/apache2/bin/apxs //支持Apache模塊

  --with-mysql=/usr/local/mysql //支持MySQl

  --with-gd=/usr/local/libgd //支持GD庫

  --enable-gd-native-ttf //激活對(duì)本地 TrueType 字符串函數(shù)的支持

  --with-ttf //激活對(duì) FreeType 1.x 的支持

  --with-freetype-dir=/usr/local/freetype //激活對(duì) FreeType 2.x 的支持

  --with-jpeg-dir=/usr/local/libjpeg //激活對(duì) jpeg-6b 的支持

  --with-png-dir=/usr //激活對(duì) png 的支持

  --with-zlib-dir=/usr/local/zlib //激活對(duì)zlib 的支持

  --enable-mbstring //激活mbstring模塊

  --enable-gd-jis-conv //使JIS-mapped可用,支持日文字體

  --with-mail //支持Mail函數(shù)

  --enable-xml //支持XML

  --enable-sockets //支持套接字

#p#

  1.安裝RRDTool

  由于rrdtool-1.2.23需要一些庫文件支持,故需先安裝配置支持的環(huán)境,然后編譯安裝。直接運(yùn)行以下bash腳本就可以完成安裝:

  注意:將cgilib-0.5.tar.gz、zlib-1.2.3.tar.gz、libpng-1.2.18.tar.gz、freetype-2.3.5.tar.gz、libart_lgpl-2.3.17.tar.gz、rrdtool-1.2.23.tar.gz放到/root/rrdtool-1.2.23目錄下,將腳本保存為/root/rrdtool-1.2.23/rrdtoolinstall.sh,并給執(zhí)行權(quán)限chmod u+x /root/rrdtool-1.2.23/rrdtoolinstall.sh。

  以下鏈接是我重新打好的一個(gè)rrdtool-1.2.23的安裝包,里面包括了所有用到的庫文件和安裝腳本,下載解壓后執(zhí)行腳本rrdinstall.sh即可以完成RRDTool的安裝。

  點(diǎn)擊下載rrdtool-1.2.23.tar.gz

  如果以上腳本安裝失敗,可以試試以下安裝包:

  http://61.156.20.41/autodownload/rrdtool-1.2.11.tar.gz

  #!/bin/sh

  BUILD_DIR=`pwd`

  INSTALL_DIR=/usr/local/rrdtool

  cd $BUILD_DIR

  tar zxf cgilib-0.5.tar.gz

  cd cgilib-0.5

  make CC=gcc CFLAGS="-O3 -fPIC -I."

  mkdir -p $BUILD_DIR/lb/include

  cp *.h $BUILD_DIR/lb/include

  mkdir -p $BUILD_DIR/lb/lib

  cp libcgi* $BUILD_DIR/lb/lib

  cd $BUILD_DIR

  tar zxf zlib-1.2.3.tar.gz

  cd zlib-1.2.3

  env CFLAGS="-O3 -fPIC" ./configure --prefix=$BUILD_DIR/lb

  make

  make install

  cd $BUILD_DIR

  tar zxvf libpng-1.2.18.tar.gz

  cd libpng-1.2.18

  env CPPFLAGS="-I$BUILD_DIR/lb/include" LDFLAGS="-L$BUILD_DIR/lb/lib" CFLAGS="-O3 -fPIC" \

  ./configure --disable-shared --prefix=$BUILD_DIR/lb

  make

  make install

  cd $BUILD_DIR

  tar zxvf freetype-2.3.5.tar.gz

  cd freetype-2.2.5

  env CPPFLAGS="-I$BUILD_DIR/lb/include" LDFLAGS="-L$BUILD_DIR/lb/lib" CFLAGS="-O3 -fPIC" \

  ./configure --disable-shared --prefix=$BUILD_DIR/lb

  make

  make install

  cd $BUILD_DIR

  tar zxvf libart_lgpl-2.3.17.tar.gz

  cd libart_lgpl-2.3.17

  env CFLAGS="-O3 -fPIC" ./configure --disable-shared --prefix=$BUILD_DIR/lb

  make

  make install

  IR=-I$BUILD_DIR/lb/include

  CPPFLAGS="$IR $IR/libart-2.0 $IR/freetype2 $IR/libpng"

  LDFLAGS="-L$BUILD_DIR/lb/lib"

  CFLAGS=-O3

  export CPPFLAGS LDFLAGS CFLAGS

  cd $BUILD_DIR

  tar zxf rrdtool-1.2.23.tar.gz

  cd rrdtool-1.2.23

  ./configure --prefix=$INSTALL_DIR --disable-python --disable-tcl && make && make install

  //完成后建立符號(hào)連接

  ln –s /usr/local/rrdtool/bin/* /usr/local/bin/

  //執(zhí)行rrdtool看是否安裝正確

#p#

  2.安裝net-snmp

  RedHat默認(rèn)安裝了SNMP服務(wù),但好象沒有snmpwalk,snmpget這兩個(gè)命令,所以需要編譯安裝NET-SNMP。

  NET-SNMP官方網(wǎng)站:http://www.net-snmp.org/

  # tar zxvf net-snmp-5.2.4.tar.gz

  #cd net-snmp-5.2.4

  #./configure --prefix=/usr/local/net-snmp --enable-developer

  #make

  #make install

  # ln –s /usr/local/net-snmp/bin/* /usr/local/bin/

  #cp EXAMPLE.conf /usr/local/net-snmp/share/snmp/snmpd.conf

  //修改snmpd.conf(修改COMMUNITY、允許抓取snmp數(shù)據(jù)的主機(jī)、抓取數(shù)據(jù)范圍等)。

  # /usr/local/net-snmp/sbin/snmpd //啟動(dòng)SNMP服務(wù)

  # vi /etc/rc.d/rc.local

  //在rc.local上加入一行/usr/local/net-snmp/sbin/snmpd,系統(tǒng)啟動(dòng)時(shí)啟動(dòng)SNMP服務(wù)。

  3.安裝Cacti

  Cacti官方網(wǎng)站:www.cacti.net/

  # tar –zxvf cacti-0.8.6j.tar.gz

  # mv –r cacti-0.8.6j /usr/loca/apache/htdocs/cacti

  # vi /usr/local/apache/htdocs/cacti/include/config.php

  $database_type = "mysql";

  $database_default = "cacti";

  $database_hostname = "localhost";

  $database_username = "cacti";

  $database_password = "cacti";

  //添加cacti用戶

  # useradd cacti

  //將rra目錄的所有權(quán)給cacti用戶

  # chown –R cacti /usr/loca/apache/htdocs/cacti/rra

  //修改cacti目錄所屬組

  # chgrp –R cacti /usr/loca/apache/htdocs/cacti

  //為cacti用戶添加cron任務(wù)

  # su – cacti

  # crontab –e

  */5 * * * * /usr/local/bin/php /usr/local/apache/htdocs/cacti/poller.php > /dev/null 2>&1

  注意:***執(zhí)行poller.php時(shí)請(qǐng)使用cacti用戶,否則生成的rrd文件cacti將沒有寫入權(quán)限。

  4.安裝Cactid

  CACTID 的安裝需要以下支持:

  o net-snmp-devel (需要編譯安裝net-snmp時(shí)添加--enable-developer選項(xiàng))

  o mysql

  o mysql-devel (mysql源文件編譯安裝后默認(rèn)支持)

  o openssl-devel (Redhat默認(rèn)安裝)

  # tar -zxvf cacti-cactid-0.8.6i.tar.gz

  # cd cacti-cactid-0.8.6i

  # ./configure --with-mysql=/usr/local/mysql --with-snmp=/usr/local/net-snmp

  # make

  //這時(shí)你將在此目錄下看到多出了cactid、cactid.conf兩個(gè)文件

  # mkdir /usr/local/cactid

  # cp cactid cactid.conf /usr/local/cactid

  # vi /usr/local/cactid/cactid.conf //修改cactid配置文件

  DB_Host 127.0.0.1

  DB_Database cacti

  DB_User cacti

  DB_Pass cacti

  5.數(shù)據(jù)庫配置

  #mysql –uroot –p

  Password:

  mysql> create database cacti;

  Query OK, 1 row affected (0.00 sec)

  mysql> grant all on cacti.* to cacti@localhost identified by “cacti”;

  Query OK, 1 row affected (0.00 sec)

  mysql>exit

  # cd /usr/local/apache/htdocs/cacti

  # mysql –uroot –p cacti < cacti.sql

  Password:

#p#

  6.完成cacti的安裝

  1).在瀏覽器中輸入:http://www.yourdomain.com/cacti/

  默認(rèn)用戶名:admin 密碼:admin

  2).更改密碼

  3).設(shè)置cacti用到的命令路徑

  snmpwalk Binary Path /usr/local/ bin/snmpwalk

  snmpget Binary Path /usr/local/ bin/snmpget

  RRDTool Binary Path /usr/local/ bin/rrdtool

  PHP Binary Path /usr/local/bin/php

  Cacti Log File Path /usr/local/apache/htdocs/cacti/log/cacti.log

  Cactid Poller File Path /usr/local/cactid/cactid

  

 

 

  4).進(jìn)入cacti后需確認(rèn)更改以下位置:(如下圖)

  Console>Settings>General

  

 

 

  Console>Settings>Poller

  

 

通過上面幾大步的安裝和配置,終于把監(jiān)控網(wǎng)絡(luò)神器---Cacti 搞定了!

【編輯推薦】

  1. cacti簡(jiǎn)單介紹
  2. Cacti簡(jiǎn)介及工作流程
  3. Cacti 監(jiān)控Linux所需要的基礎(chǔ)安裝詳解
  4. Cacti 監(jiān)控Linux關(guān)于安裝FreeBSD及其應(yīng)用
  5. Cacti使用手冊(cè)相關(guān)配置及安裝詳解
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