Linux下常用的系统监控软件有Nagios、Cacti、Zabbix、Monit等，这些开源的软件，可以帮助我们更好的管理机器，在第一时间内发现，并警告系统维护人员，告警方式多样化（包括邮件，短信，qq，企业微信，电话等。）
首先，我们先来介绍下Zabblx：
一.Zabbix简介
zabbix是一个基于WEB界面的提供分布式系统监视以及网络监视功能的企业级的开源解决方案。
zabbix由zabbix server与可选组件zabbix agent两大部分组成。
zabbix agent需要安装在被监视的目标服务器上，它主要完成对硬件信息或与操作系统有关的内存，CPU等信息的收集。
Zabbix主要功能：
CPU负荷， 内存使用，磁盘使用，网络状况， 端口监视， 日志监视，发出告警等。
官方也提供了安装资料：https://www.zabbix.com/documentation/3.2/manual/
准备工作：
1，准备lamp或者lnmp环境，以及时间的同步。
2，主机名,ip 写进hosts记录
3，防火墙开启10050.10051.80端口
4，关闭selinux
5，安装好gcc（yum -y install gcc*）
一、安装php
#rpm -ivh http://repo.webtatic.com/yum/el6/latest.rpm
#yum install php56w php56w-gd php56w-mysql php56w-bcmath php56w-mbstring php56w-xml php56w-ldap
修改配置文件
#vim /etc/php.ini
375 max_execution_time = 300
385 max_input_time = 300
663 post_max_size = 32M
705 always_populate_raw_post_data = -1
889 date.timezone = Asia/Shanghai
安装后需要检测提前修改属性
二、安装MySQL
MySQL建议使用5.6版本，CentOs6默认为5.1，不建议使用，性能偏低
#rpm -ivh http://dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpm
#yum install -y mysql-server mysql-devel
修改配置文件
#vim /etc/my.cnf
[mysqld]
innodb_file_per_table --------独立表空间
# service mysqld start
#mysql_secure_installation -------MySQL安全配置向导
Enter current password for root (enter for none): ----初次运行直接回车
OK, successfully used password, moving on...
Setting the root password ensures that nobody can log into the MySQL
root user without the proper authorisation.
Set root password? [Y/n] ------是否设置root密码，输入y回车或直接回车
New password: ------设置密码zabbix
Re-enter new password: ------确认密码zabbix
Password updated successfully!
Reloading privilege tables..
... Success!
By default, a MySQL installation has an anonymous user, allowing anyone
to log into MySQL without having to have a user account created for
them. This is intended only for testing, and to make the installation
go a bit smoother. You should remove them before moving into a
production environment.
Remove anonymous users? [Y/n] -------是否删除匿名用户，生产环境建议删除，直接回车
... Success!
Normally, root should only be allowed to connect from 'localhost'. This
ensures that someone cannot guess at the root password from the network.
Disallow root login remotely? [Y/n] ------是否禁止root远程登录，根据自己的需求选择
... Success!
By default, MySQL comes with a database named 'test' that anyone can
access. This is also intended only for testing, and should be removed
before moving into a production environment.
Remove test database and access to it? [Y/n] -----是否删除test数据库，直接回车
- Dropping test database...
ERROR 1008 (HY000) at line 1: Can't drop database 'test'; database doesn't exist
... Failed! Not critical, keep moving...
- Removing privileges on test database...
... Success!
Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.
Reload privilege tables now? [Y/n] -----是否重新加载授权表，直接回车
... Success!
All done! If you've completed all of the above steps, your MySQL
installation should now be secure.
Thanks for using MySQL!
Cleaning up...
登录MySQL用户
#mysql -uroot -pzabbix
mysql> create database zabbix character set utf8 collate utf8_bin;
mysql> grant all privileges on zabbix.* to zabbix@localhost identified by 'zabbix';
mysql> flush privileges;
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| zabbix |
+--------------------+
4 rows in set (0.00 sec)
mysql> quit
Bye
三、安装Zabbix
#yum install httpd libxml2 libxml2-devel net-snmp-devel libcurl-devel
创建zabbix用户和组
#groupadd -g 201 zabbix
#useradd -g zabbix -u 201 -m zabbix
下载zabbix-3.2.6安装包
#wget http://jaist.dl.sourceforge.net/project/zabbix/ZABBIX%20Latest%20Stable/3.2.6/zabbix-3.2.6.tar.gz
#tar zxvf zabbix-3.2.6.tar.gz -C /usr/src/
#cd /usr/src/zabbix-3.2.6/
#/usr/bin/mysql -uzabbix -pzabbix zabbix < database/mysql/schema.sql
#/usr/bin/mysql -uzabbix -pzabbix zabbix < database/mysql/images.sql
#/usr/bin/mysql -uzabbix -pzabbix zabbix < database/mysql/data.sql
#./configure --prefix=/usr/local/zabbix --sysconfdir=/etc/zabbix/ --enable-server --enable-agent --with-net-snmp --with-libcurl --with-mysql --with-libxml2
#make &&make install
修改zabbix_server配置
#vim /etc/zabbix/zabbix_server.conf
77 DBHost=localhost
88 DBName=zabbix
103 DBUser=zabbix
111 DBPassword=zabbix
299 ListenIP=127.0.0.1,192.168.0.103 -----zabbix server ip地址
#ln -s /usr/local/zabbix/sbin/* /usr/sbin/
#cp misc/init.d/fedora/core/zabbix_* /etc/init.d/
#chmod +x /etc/init.d/zabbix_*
#sed -i "s@BASEDIR=/usr/local@BASEDIR=/usr/local/zabbix@g" /etc/init.d/zabbix_server ----写入系统服务
配置WEB
chown -R zabbix.zabbix /usr/local/zabbix
#vim /etc/httpd/conf/httpd.conf
ServerName 127.0.0.1
ServerName 192.168.0.103
DocumentRoot "/var/www/html"
#mkdir -p /var/www/html/zabbix
#cp -r frontends/php/* /var/www/html/zabbix
#chown -R apache.apache /var/www/html/zabbix/
#/etc/init.d/httpd restart
#chkconfig zabbix_server on
#/etc/init.d/zabbix_server start
用浏览器访问http://192.168.0.103/zabbix,并按照提示安装：
Zabbix用户默认是：Admin，密码：zabbix
配置zabbix客户端
Linux服务器客户端的安装
下载zabbix安装包，可以直接使用服务端包
#wget http://jaist.dl.sourceforge.net/project/zabbix/ZABBIX%20Latest%20Stable/3.2.6/zabbix-3.2.6.tar.gz
#groupadd -g 201 zabbix
#useradd -g zabbix -u 201 -m zabbix
#tar zxvf zabbix-3.2.6.tar.gz -C /usr/src/
#cd /usr/src/zabbix-3.2.6/
#./configure --prefix=/usr/local/zabbix-agent --enable-agent
#make &&make install
#ln -s /usr/local/zabbix-agent/sbin/ /usr/sbin/
#cp misc/init.d/fedora/core/zabbix_agentd /etc/init.d/
#chmod +x /etc/init.d/zabbix_*
#sed -i "s@BASEDIR=/usr/local@BASEDIR=/usr/local/zabbix@g" /etc/init.d/zabbix_agentd
#/etc/init.d/zabbix_agentd restart
#chkconfig zabbix-agent on