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
      linux监控平台介绍,zabbix监控介绍,zabbix安装,忘记Admin密码如何做

      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
    [root@akuilinux01 ~]# 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...                          ################################# [100%]
    正在升级/安装...
    1:zabbix-release-3.2-1.el7         ################################# [100%]
  • 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
    [root@akuilinux01 ~]# cd /usr/share/doc/zabbix-server-mysql-3.2.11/
    [root@akuilinux01 zabbix-server-mysql-3.2.11]# ls
    AUTHORS  ChangeLog  COPYING  create.sql.gz  NEWS  README
    [root@akuilinux01 zabbix-server-mysql-3.2.11]# gzip -d create.sql.gz 
    [root@akuilinux01 zabbix-server-mysql-3.2.11]# ls
    AUTHORS  ChangeLog  COPYING  create.sql  NEWS  README
    [root@akuilinux01 zabbix-server-mysql-3.2.11]# 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
    [root@akuilinux01 ~]# systemctl stop nginx
    [root@akuilinux01 ~]# chkconfig nginx off
    [root@akuilinux01 ~]# systemctl start httpd
    [root@akuilinux01 ~]# systemctl enable httpd
    [root@akuilinux01 ~]# systemctl start zabbix-server
    [root@akuilinux01 ~]# systemctl enable zabbix-server
    [root@akuilinux01 ~]# ps aux |grep zabbix
    zabbix    2048  0.0  0.1 254588  3496 ?        S    22:56   0:00 /usr/sbin/zabbix_server -c /etc/zabbix/zabbix_server.conf
    root      2154  0.0  0.0 112676   984 pts/0    S+   23:01   0:00 grep --color=auto zabbix
  • 修改配置文件
    [root@akuilinux01 ~]# vim /etc/zabbix/zabbix_server.conf
    DBHost=127.0.0.1
    DBName=zabbix
    DBUser=zabbix
    DBPassword=s5381561
    [root@akuilinux01 ~]# systemctl restart zabbix-server
    [root@akuilinux01 ~]# 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
    [root@akuilinux01 ~]# vim /etc/php.ini
    date.timezone = Asia/Shanghai
    [root@akuilinux01 ~]# 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
    [root@akuilinux02 ~]# systemctl start zabbix-agent
    [root@akuilinux02 ~]# 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

    [root@akuilinux01 ~]# 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: 1  Changed: 1  Warnings: 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)