rhel下安裝配置nagios和cacti

 nagios安裝指南
環(huán)境：rhel6.2 
軟件：nagios-3.3.1.tar.gz


1、最小化安裝系統(tǒng)
2、安裝缺失插件
yum install -y httpd http-devel mysql mysql-devel mysql-server gcc glibc glibc-common gd gd-devel php  make php-devel php-gd ntp make  net-snmp net-snmp-devel 
3、創(chuàng)建nagios用戶并創(chuàng)建nagcmd組，允許用戶在web上執(zhí)行命令.
useradd -m nagios  
  


groupadd nagcmd  
usermod -a -G nagcmd nagios  
usermod -a -G nagcmd apache 
3、編譯安裝nagios
./configure  --with-gd-lib=/usr/local/lib  --with-command-group=nagcmd  --prefix=/var/www/html/nagios
make all 
make install
make install-init  
make install-config  
make install-commandmode
4、修改發(fā)信郵箱、修改apache配置文件
vi  /var/www/html/nagios/etc/objects/contacts.cfg
nagios-3.2.3/sample-config/httpd.conf中的片段拷貝到/etc/httpd/conf/httpd.conf中
5、添加登錄認證文件
htpasswd -c  /var/www/html//nagios/etc/htpasswd.users nagiosadmin  
6、安裝nagios-plugins插件
tar -zvxf nagios-plugins-1.4.15.tar.gz 
cd nagios-plugins-1.4.15 
./configure --with-nagios-user=nagios --with-nagios-group=nagios  --prefix=/var/www/html/nagios
make && make install
7、nagios 測試
chown nagios：nagios /var/www/html/nagios/ -R 
/etc/init.d/httpd restart  
chkconfig httpd on   
/etc/init.d/nagios start 
8、安裝nrpe
tar xzvf nrpe-2.12.tar.gz  
cd nrpe-2.12  


./configure  
make all    
make install-plugin  
make install-daemon  
make install-daemon-config  
make install-xinetd  
9、修改nrpe配置
編輯/etc/xinetd.d/nrpe 
only_from = 127.0.0.1 #這里只能加一個IP
編輯/etc/services，在最后一行加上 
nrpe 5666/tcp # NRPE


在監(jiān)控主機上編輯 /var/www/html/nagios/etc/objects/commands.cfg，加入下面的command。
[plain] view plaincopy
define command{  
        command_name  check_nrpe  
        command_line  $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$  
}  
10、配置snmp服務(wù)
yum install net-snmp net-snmp-devel net-snmp-libs net-snmp-utils
chkconfig –level 35 snmpd on
service snmpd start
vi /etc/snmp/snmpd.conf
修改com2sec notConfigUser  default       public
為：com2sec notConfigUser  127.0.0.1       public
修改access  notConfigGroup ""      any       noauth    exact  systemview none none
為access  notConfigGroup ""      any       noauth    exact  all  none none
并啟用view all    included  .1                               80此行；


11、解壓移動cacti
tar xvf cacti-0.8.7g.tar.gz
mv cacti-0.8.7g /var/www/html/cacti


12、安裝rrdtool
tar xzf rrdtool-1.4.5.tar.gz   ;
cd rrdtool-1.4.5  ; 
./configure –-prefix=/usr/local/rrdtool/  ;
make  &&make install

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

或者執(zhí)行：

yum install rrdtool* 

13、配置cacti數(shù)據(jù)庫
mysql -uroot –p ##輸入你的密碼進入數(shù)據(jù)庫，然后創(chuàng)建數(shù)據(jù)庫：
create database cacti;   ## 創(chuàng)建庫
grant all on cacti.* to  cacti@’localhost’   identified by  ’123456′; ##創(chuàng)建用戶并授權(quán)
flush privileges; ##刷新權(quán)限
mysql配置完畢后，把cacti數(shù)據(jù)導(dǎo)入cacti數(shù)據(jù)庫里面：
mysql -ucacti  -p cacti </var/www/html/cacti/cacti.sql
回車輸入cacti用戶的密碼123456即可。
需要在修改/var/www/html/cacti/include/config.php ；
將
$database_type = "mysql";
$database_default = "cacti";
$database_hostname = "localhost";
$database_username = "cacti";
$database_password = "123456";
$database_port = "3306";
改成相應(yīng)的數(shù)據(jù)即可；


配置完mysql后，我們需要設(shè)置cacti rra、log 目錄的權(quán)限，這里設(shè)置為777 ：
chmod -R  777  /var/www/html/cacti/rra/
chmod -R  777  /var/www/html/cacti/log/


為了繪制圖表，需要手動添加以下任務(wù)
* /5  * * * * php /var/www/html/cacti/poller.php
14、瀏覽器中打開：
http://localhost:/cacti
執(zhí)行install安裝即可；