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安装nagios 客户端
为曲沃等地区用户提供了全套网页设计制作服务，及曲沃网站建设行业解决方案。主营业务为成都网站建设、网站制作、曲沃网站设计，以传统方式定制建设网站，并提供域名空间备案等一条龙服务，秉承以专业、用心的态度为用户提供真诚的服务。我们深信只要达到每一位用户的要求，就会得到认可，从而选择与我们长期合作。这样，我们也可以走得更远！
客户端仅仅需要安装下面内容
Class-Accessor-0.31.tar.gz
Config-Tiny-2.12.tar.gz
Math-Calc-Units-1.07.tar.gz
Nagios-Plugin-0.34.tar.gz
Params-Validate-0.91.tar.gz
Regexp-Common-2010010201.tar.gz
check_iostat
check_memory.pl
nrpe-2.12.tar.gz
第一步：修改YUM源码
cd /etc/yum.repos.d/
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
第二步：调整字符集
echo 'export LC_ALL=C'>> /etc/profile
source /etc/profile
echo $LC_ALL
第三部：关闭防火墙
/etc/init.d/iptables stop
/etc/init.d/iptables stop
chkconfig iptables off
setenforce 0 #临时生效
sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/selinux/config #永久生效
setenforce 0
sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/selinux/config
第四部：时间同步
/usr/sbin/ntpdate pool.ntp.org
echo '#time sync'>>/var/spool/cron/root
echo '*/10 * * * * /usr/sbin/ntpdate pool.ntp.org >/dev/null 2>&1'>>/var/spool/cron/root
crontab -l
第五步:创建nagios用户
/usr/sbin/useradd -m nagios -s /sbin/nologin
第六步：安装nagios客户端插件
[ ! -d /home/lvnian/tools ] && mkdir /home/lvnian/tools -p
cd /home/lvnian/tools
yum -y install perl-devel openssl-devel
tar zxf nagios-plugins-1.4.16.tar.gz
cd nagios-plugins-1.4.16
./configure --prefix=/usr/local/nagios --enable-perl-modules --enable-redhat-pthread-workaround
make && make install
cd ../
ls /usr/local/nagios/libexec/|wc -l
cd /home/lvnian/tools/
tar zxf nrpe-2.12.tar.gz
cd nrpe-2.12
./configure
make all
make install-plugin
make install-daemon
make install-daemon-config
cd ..
#----------------------------------------
cd /home/lvnian/tools/
tar zxvf Params-Validate-0.91.tar.gz
cd Params-Validate-0.91
perl Makefile.PL
make
make install
cd ..
#----------------------------------------
cd /home/lvnian/tools/
tar zxvf Class-Accessor-0.31.tar.gz
cd Class-Accessor-0.31
perl Makefile.PL
make
make install
cd ..
#----------------------------------------
cd /home/lvnian/tools/
tar zxvf Config-Tiny-2.12.tar.gz
cd Config-Tiny-2.12
perl Makefile.PL
make
make install
cd ..
#----------------------------------------
cd /home/lvnian/tools/
tar zxvf Math-Calc-Units-1.07.tar.gz
cd Math-Calc-Units-1.07
perl Makefile.PL
make
make install
cd ..
#----------------------------------------
cd /home/lvnian/tools/
tar zxvf Regexp-Common-2010010201.tar.gz
cd Regexp-Common-2010010201
perl Makefile.PL
make
make install
cd ..
#----------------------------------------
cd /home/lvnian/tools/
tar zxvf Nagios-Plugin-0.34.tar.gz
cd Nagios-Plugin-0.34
perl Makefile.PL
make
make install
cd ..
#______________________
#for monitor iostat
yum install sysstat -y
yum install dos2unix -y
/bin/cp /home/lvnian/tools/check_memory.pl /usr/local/nagios/libexec
/bin/cp /home/lvnian/tools/check_iostat /usr/local/nagios/libexec
chmod 755 /usr/local/nagios/libexec/check_memory.pl
chmod 755 /usr/local/nagios/libexec/check_iostat
dos2unix /usr/local/nagios/libexec/check_memory.pl
dos2unix /usr/local/nagios/libexec/check_iostat
##################################################
配置nrpe 配置文件
perl -pi -e 's/allowed_hosts=127.0.0.1/allowed_hosts=127.0.0.1,10.0.0.3/g' /usr/local/nagios/etc/nrpe.cfg
或者 sed -i 's/allowed_hosts=127.0.0.1/allowed_hosts=127.0.0.1,10.0.0.3/g' /usr/local/nagios/etc/nrpe.cfg
这一步的目的是，让nagios服务端能够到这来获取设计
#delete 199--203
cp /usr/local/nagios/etc/nrpe.cfg /usr/local/nagios/etc/nrpe.cfg.ori
sed -i '199,203d' /usr/local/nagios/etc/nrpe.cfg
echo "command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,6 -c 30,25,20">>/usr/local/nagios/etc/nrpe.cfg
echo "command[check_mem]=/usr/local/nagios/libexec/check_memory.pl -w 6% -c 3%">>/usr/local/nagios/etc/nrpe.cfg
echo "command[check_disk]=/usr/local/nagios/libexec/check_disk -w 20% -c 8% -p /">>/usr/local/nagios/etc/nrpe.cfg
echo "command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10%">>/usr/local/nagios/etc/nrpe.cfg
echo "command[check_iostat]=/usr/local/nagios/libexec/check_iostat -w 6 -c 10">>/usr/local/nagios/etc/nrpe.cfg
启动nagios 客户端 nrpe
pkill nrpe
sleep 2
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
echo "#nagios nrpe process cmd by lvnian 2012-6-7" >> /etc/rc.local
echo "/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d">>/etc/rc.local
netstat -lnt|grep 5666
重启nagios nrpe的命令：
pkill nrpe && /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d ||/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
netstat -lnt | grep 5666
检查插件数量
[root@Nagios etc]# ls /usr/local/nagios/libexec/|wc -l
64
[root@centos tools]# ls /usr/local/nagios/libexec/|wc -l
62
