linux监控平台介绍，zabbix监控介绍，zabbix安装，忘记Admin密码如何做
linux监控平台介绍[*]cacti、nagios、zabbix、smokeping、open-falcon等等
[*]cacti、smokeping偏向于基础监控，成图非常漂亮
[*]cacti、nagios、zabbix服务端监控中心，需要php环境支持，其中zabbix和cacti都需要mysql作为数据存储，nagios不用存储历史数据，注重服务或者监控项的状态，zabbix会获取服务或者监控项目的数据，会把数据记录到数据库里，从而可以成图
[*]open-falcon为小米公司开发，开源后受到诸多大公司和运维工程师的追捧，适合大企业，滴滴、360、新浪微博、京东等大公司在使用这款监控软件，值得研究
zabbix监控介绍
[*]C/S架构，基于C++开发，监控中心支持web界面配置和管理，需要php和mysql支持
[*]单server节点可以支持上万台客户端
[*]最新版本3.4，官方文档https://www.zabbix.com/manuals
[*]包含5个组件
[*]zabbix-server 监控中心，接收客户端上报信息，负责配置、统计、操作数据
[*]数据存储 存放数据，比如mysql
[*]web界面 也叫web UI，在web界面下操作配置是zabbix简单易用的主要原因
[*]zabbix-proxy 可选组件，它可以代替zabbix-server的功能，减轻server的压力
[*]zabbix-agent 客户端软件，负责采集各个监控服务或项目的数据，并上报
http://i2.运维网.com/images/blog/201807/06/fc8bb331b1766745684d71d37e4f2cf5.png
zabbix安装
[*]官网下载地址 www.zabbix.com/download
[*]wget repo.zabbix.com/zabbix/3.2/rhel/7/x86_64/zabbix-release-3.2-1.el7.noarch.rpm，下载zabbix源并安装源,客户端也要安装
# rpm -ivh zabbix-release-3.2-1.el7.noarch.rpm
警告：zabbix-release-3.2-1.el7.noarch.rpm: 头V4 RSA/SHA512 Signature, 密钥 ID a14fe591: NOKEY
准备中... #################################
正在升级/安装...
1:zabbix-release-3.2-1.el7 #################################
[*]服务端安装zabbix
yum install -y zabbix-agent zabbix-get zabbix-server-mysql zabbix-web zabbix-web-mysql
[*]会连带安装httpd和php
[*]如果mysql之前没有安装的话，需要根据lamp那一章的mysql安装方法安装mysql
[*]vim /etc/my.cnf //需要增加配置
character_set_server = utf8
[*]重启mysqld服务后，进入mysql命令行，创建zabbix库和用户
mysql> create database zabbix character set utf8;
Query OK, 1 row affected (0.34 sec)
mysql> grant all on zabbix.* to 'zabbix'@'127.0.0.1' identified by 's5381561';
Query OK, 0 rows affected (0.05 sec)
[*]导入数据
# cd /usr/share/doc/zabbix-server-mysql-3.2.11/
# ls
AUTHORSChangeLogCOPYINGcreate.sql.gzNEWSREADME
# gzip -d create.sql.gz
# ls
AUTHORSChangeLogCOPYINGcreate.sqlNEWSREADME
# mysql -uroot -ps5381561 zabbix < create.sql
Warning: Using a password on the command line interface can be insecure.
[*]开启服务并开机启动
如果有nginx服务需要先停掉并禁掉开机启动
# systemctl stop nginx
# chkconfig nginx off
# systemctl start httpd
# systemctl enable httpd
# systemctl start zabbix-server
# systemctl enable zabbix-server
# ps aux |grep zabbix
zabbix 20480.00.1 2545883496 ? S 22:56 0:00 /usr/sbin/zabbix_server -c /etc/zabbix/zabbix_server.conf
root 21540.00.0 112676 984 pts/0 S+ 23:01 0:00 grep --color=auto zabbix
[*]修改配置文件
# vim /etc/zabbix/zabbix_server.conf
DBHost=127.0.0.1
DBName=zabbix
DBUser=zabbix
DBPassword=s5381561
# systemctl restart zabbix-server
# netstat -lntp |grep zabbix
tcp 0 0 0.0.0.0:10051 0.0.0.0:* LISTEN 2176/zabbix_server
tcp6 0 0 :::10051 :::* LISTEN 2176/zabbix_server
[*]在浏览器里输入http://192.168.21.128/zabbix/进入zabbix的web界面，点击下一步
[*]PHP option "date.timezone" unknown Fail提示时区不对
# vim /etc/php.ini
date.timezone = Asia/Shanghai
# systemctl restart httpd
[*]下一步，定义mysql信息和主机名，最后完成
[*]默认用户名Admin 密码zabbix
[*]进入后台第一件事情就是修改密码，改中文
[*]在客户端上也需要下载zabbix的yum源
[*]yum install -y zabbix-agent
[*]vim/etc/zabbix/zabbix_agentd.conf //修改如下配置
Server=127.0.0.1修改为Server=192.168.21.128 //定义服务端的ip（被动模式）
ServerActive=127.0.0.1修改为ServerActive=192.168.21.128 //定义服务端的ip（主动模式）
Hostname=Zabbix server修改为Hostname=Zabbix server //这是自定义的主机名，一会还需要在web界面下设置同样的主机名
[*]启动服务并开机启动
# systemctl start zabbix-agent
# systemctl enable zabbix-agent
Created symlink from /etc/systemd/system/multi-user.target.wants/zabbix-agent.service to /usr/lib/systemd/system/zabbix-agent.service.
忘记Admin密码如何做
# mysql -uroot -ps5381561
mysql> use zabbix
mysql> desc users;#密码存在users表里
+----------------+---------------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------------+---------------------+------+-----+---------+-------+
| userid | bigint(20) unsigned | NO | PRI | NULL | |
| alias | varchar(100) | NO | UNI | | |
| name | varchar(100) | NO | | | |
| surname | varchar(100) | NO | | | |
| passwd | char(32) | NO | | | |
| url | varchar(255) | NO | | | |
| autologin | int(11) | NO | | 0 | |
| autologout | int(11) | NO | | 900 | |
| lang | varchar(5) | NO | | en_GB | |
| refresh | int(11) | NO | | 30 | |
| type | int(11) | NO | | 1 | |
| theme | varchar(128) | NO | | default | |
| attempt_failed | int(11) | NO | | 0 | |
| attempt_ip | varchar(39) | NO | | | |
| attempt_clock| int(11) | NO | | 0 | |
| rows_per_page| int(11) | NO | | 50 | |
+----------------+---------------------+------+-----+---------+-------+
16 rows in set (0.00 sec)
mysql> update users set passwd=md5('5381561') where alias='Admin'; #更改Admin用户密码
Query OK, 1 row affected (0.01 sec)
Rows matched: 1Changed: 1Warnings: 0
mysql> select * from users; #目前有俩个用户
+--------+-------+--------+---------------+----------------------------------+-----+-----------+------------+-------+---------+------+---------+----------------+------------+---------------+---------------+
| userid | alias | name | surname | passwd | url | autologin | autologout | lang| refresh | type | theme | attempt_failed | attempt_ip | attempt_clock | rows_per_page |
+--------+-------+--------+---------------+----------------------------------+-----+-----------+------------+-------+---------+------+---------+----------------+------------+---------------+---------------+
| 1 | Admin | Zabbix | Administrator | 8735d2f54dde47455a2558e0f138dc89 | | 1 | 0 | zh_CN | 30 | 3 | default | 0 | | 0 | 50 |
| 2 | guest | | | d41d8cd98f00b204e9800998ecf8427e | | 0 | 900 | en_GB | 30 | 1 | default | 0 | | 0 | 50 |
+--------+-------+--------+---------------+----------------------------------+-----+-----------+------------+-------+---------+------+---------+----------------+------------+---------------+---------------+
2 rows in set (0.00 sec)
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