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wget http://sourceforge.net/projects/nagios/files/nagios-3.x/nagios-3.4.3/nagios-3.4.3.tar.gz/download
[root@gjp ~]# wget http://nchc.dl.sourceforge.net/project/nagiosplug/nagiosplug/1.4.16/nagios-plugins-1.4.16.tar.gz
[root@gjp ~]# wget http://nchc.dl.sourceforge.net/project/nagios/nrpe-2.x/nrpe-2.13/nrpe-2.13.tar.gz
我本地DVD上沒(méi)有g(shù)d-devel,所以我又加一一個(gè)163的鏡像源
yum install -y httpd php gcc glibc glibc-common gd gd-devel perl make
創(chuàng)建一個(gè)名為nagios的帳號(hào)并給定登錄口令
/usr/sbin/useradd nagios
passwd nagios #密碼123456
創(chuàng)建一個(gè)用戶組名為nagcmd用于從Web接口執(zhí)行外部命令。將nagios用戶和apache用戶都加到這個(gè)組中。
/usr/sbin/groupadd nagcmd
/usr/sbin/usermod -G nagcmd nagios
/usr/sbin/usermod -G nagcmd apache
[root@gjp nagios]# yum install sendmail –y
cd /root nagios下載目錄
tar xzf nagios-3.4.3.tar.gz
cd nagios
運(yùn)行Nagios配置腳本并使用先前開(kāi)設(shè)的用戶及用戶組:
./configure --with-command-group=nagcmd
下面這個(gè),我這里沒(méi)指定
make all
make install
make install-init
make install-config
make install-commandmode
把Nagios加入到服務(wù)列表中以使之在系統(tǒng)啟動(dòng)時(shí)自動(dòng)啟動(dòng)
現(xiàn)在還不能啟動(dòng)Nagios-還有一些要做的...
客戶后配置
樣例配置文件默認(rèn)安裝在這個(gè)目錄下/usr/local/nagios/etc,這些樣例文件可以配置Nagios使之正常運(yùn)行,只需要做一個(gè)簡(jiǎn)單的修改...
用你擅長(zhǎng)的編輯器軟件來(lái)編輯這個(gè)/usr/local/nagios/etc/objects/contacts.cfg配置文件,更改email地址nagiosadmin的聯(lián)系人定義信息中的EMail信息為你的EMail信息以接收?qǐng)?bào)警內(nèi)容。
vi /usr/local/nagios/etc/objects/contacts.cfg
配置WEB接口
安裝Nagios的WEB配置文件到Apache的conf.d目錄下
nagios-3.4.3.tar.gz解壓后的nagios中執(zhí)行
[root@gjp ~]# cd nagios
[root@gjp nagios]# make install-webconf
在ls /etc/httpd/conf.d/下,會(huì)出現(xiàn)nagios.conf 文件
下面使用的版本與上面不同:
展開(kāi)Nagios插件的源程序包
cd /root
tar xzf nagios-plugins-1.4.16.tar.gz
cd nagios-plugins-1.4.16
yum install -y openssl openssl-devel
編譯并安裝插件
./configure --with-nagios-user=nagios --with-nagios-group=nagios
make && make install
我在這里采用的yum安裝!
以上,是參考文檔,我這里如下配置:
因?yàn)榍懊娼⒘藗€(gè)用戶組,把nagios和apache都添加進(jìn)去了!因此,我這里無(wú)需改動(dòng):除了這個(gè)無(wú)需改動(dòng),其他修改如上
創(chuàng)建一個(gè)nagiosadmin的用戶用于Nagios的WEB接口登錄。記下你所設(shè)置的登錄口令,一會(huì)兒你會(huì)用到它。
htpasswd -c /usr/local/nagios/etc/htpasswd nagiosadmin #密碼123456
重啟Apache服務(wù)以使設(shè)置生效。
service httpd restart
如果出現(xiàn)服務(wù)啟動(dòng)不了,出現(xiàn)這樣
啟動(dòng)Nagios
驗(yàn)證Nagios的樣例配置文件
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
如果沒(méi)有報(bào)錯(cuò),可以啟動(dòng)Nagios服務(wù)
service nagios start
[root@gjp nagios-plugins-1.4.16]# service nagios start
Starting nagios: done.
界面:
http://192.168.1.104:1080/nagios/
訪問(wèn)時(shí),輸入用戶名和密碼:則是vim /usr/local/nagios/etc/htpasswd 該文件中的用戶和密碼!
這時(shí),監(jiān)控端已配置好:
http://192.168.1.104:1080/nagios/
訪問(wèn)時(shí),卻發(fā)現(xiàn),訪問(wèn)不到
Apache重啟才能生效!
如果無(wú)法訪問(wèn),查看apache服務(wù)是否開(kāi)啟,如果啟動(dòng)不了,查原因,我這里是由于selinux沒(méi)關(guān)閉,導(dǎo)致的,vim /etc/selinux/config 把#SELINUX=enforcing
SELINUX=disabled
如果apache正常,扔無(wú)法打開(kāi)web,則查看iptables
如iptables –F 規(guī)則,清理下,ok
cd /root
tar xvf nrpe-2.13.tar.gz
cd nrpe-2.13
./configure
make all && make install-plugin
在文件/usr/local/nagios/etc/objects/commands.cfg后面增加:
# 'check_nrpe' command definition
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -t 30 -c $ARG1$
}
定義主機(jī):
vim /usr/local/nagios/etc/nagios.cfg
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
監(jiān)測(cè)看到如下: 這里有1個(gè)警告,是沒(méi)問(wèn)題的!
/etc/init.d/nagios restart
看到界面如下:
定義相應(yīng)的服務(wù):
vim /usr/local/nagios/etc/objects/service.cfg (自己創(chuàng)建的)
[root@root objects]# cat service.cfg
define service{
use generic-service;
host_name test;
service_description users;
check_command check_nrpe!check_users;
}
define service{
use generic-service;
host_name test;
service_description load;
check_command check_nrpe!check_load;
}
define service{
use generic-service;
host_name test;
service_description disk;
check_command check_nrpe!check_disk;
}
define service{
use generic-service;
host_name test;
service_description zombie;
check_command check_nrpe!check_zombie_procs;
}
define servicegroup{
servicegroup_name servergroup;
alias server-group;
members test,users,test,load,test,disk,test,zombie;
}(這個(gè)文檔對(duì)應(yīng)的是被監(jiān)控端的vim /usr/local/nagios/etc/nrpe.cfg 中定義的命令,如command[check_users]=/usr/local/nagios/libexec/check_users -w 10 -c 16)
寫(xiě)完后,進(jìn)行驗(yàn)證:
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
然后記著重啟nagios
出現(xiàn)上面:
在被監(jiān)控端192.168.1.106:
在監(jiān)控端:
[root@root objects]# /usr/local/nagios/libexec/check_nrpe -H 192.168.1.106 -c check_disk
DISK OK - free space: / 6666 MB (72% inode=95%);| /=2521MB;9188;9488;0;9688
上面的HTTP錯(cuò)誤,開(kāi)放80端口,在httpd.conf中,增加Listen 80,然后,apache服務(wù)重啟,解決!
在被監(jiān)控機(jī)上:
在這里,我的操作如下:
groupadd nagios
useradd -g nagios -d /usr/local/nagios -s /sbin/nologin nagios
cd /tmp/
tar xvf nagios-plugins-1.4.16.tar.gz
cd nagios-plugins-1.4.16
./configure --with-nagios-user=nagios --with-nagios-group=nagios --enable-redhat-pthread-workaround
make && make install
cd /root
tar xvfz nrpe-2.13.tar.gz
cd nrpe-2.13
./configure
make all
make install-plugin
make install-daemon
make install-daemon-config
具體操作如下:
更改/usr/local/nagios/etc/nrpe.cfg文件,在參數(shù)allowed_hosts后添加監(jiān)控機(jī)ip(多個(gè)ip以逗號(hào)分隔,目前監(jiān)控及ip為222.189.237.136,112.84.184.111)
可以在/etc/services結(jié)尾增加:
echo 'nrpe 5666/tcp # NRPE' >> /etc/services
/usr/local/nagios/libexec/check_nrpe -H localhost
NRPE v2.13
更改 /usr/local/nagios/etc/nrpe.cfg,把原來(lái)command都注釋掉
nrpe.cfg文件里包含需要監(jiān)控遠(yuǎn)程主機(jī)的命令,如:
echo '
command[check_users]=/usr/local/nagios/libexec/check_users -w 10 -c 16
command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20
command[check_disk]=/usr/local/nagios/libexec/check_disk -w 500 -c 200 -p /
command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z
command[check_cpu_procs]=/usr/local/nagios/libexec/check_procs -w 40 -c 80 -m CPU
command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200 ' >> /usr/local/nagios/etc/nrpe.cfg
7)手工啟動(dòng)
手工啟動(dòng)方法 /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
8)添加開(kāi)機(jī)啟動(dòng)
echo '/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d' >> /etc/rc.local
9)驗(yàn)證nrpe是否監(jiān)聽(tīng)
netstat -tanp | grep nrpe
上述部分參考截圖來(lái)自:
知識(shí)使用:http://blog.csdn.net/nicaiwa/article/details/9185565
《高性能Linux服務(wù)器構(gòu)建實(shí)戰(zhàn):運(yùn)維監(jiān)控、性能調(diào)優(yōu)與集群應(yīng)用%28完整%29.pdf》
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