Centos8安装zabbix5.4.7（一）

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zabbix实验笔记，并实现企业微信告警通知。安装centos linux时建议最小化安装。

Centos8安装相关系统包

  • 因为最小化安装系统，所以软件包特别少，因此需要安装一些常用的包

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    yum -y install net-tools vim net-snmp-utils

  • 关闭selinux，需要修改vim /etc/selinux/config，重启后生效

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    - SELINUX=enforcing
    + SELINUX=disabled

  • 卸载防火墙

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    yum -y remove firewalld

  • 验证一些OID的命令

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    snmpwalk -v 2c -c public IP地址 OID

下载zabbix相关安装包

  • 从官网下载相关包

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    rpm -Uvh https://repo.zabbix.com/zabbix/5.4/rhel/8/x86_64/zabbix-release-5.4-1.el8.noarch.rpm
    dnf clean all

  • 使用dnf安装相关软件包

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    dnf install zabbix-server-mysql zabbix-web-mysql zabbix-nginx-conf zabbix-sql-scripts zabbix-agent

安装MySQL数据库

  • 下载MySQL8.0版本的rpm包

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    wget https://dev.mysql.com/get/mysql80-community-release-el8-1.noarch.rpm

  • 本地安装rpm包

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    yum localinstall mysql80-community-release-el8-1.noarch.rpm  #rpm包
    yum update

  • 安装数据库并启动设置开机自启

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    systemctl start mysqld
    systemctl enable mysqld
    systemctl status mysqld # 查看服务状态

  • 设置数据库root密码

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    use mysql; //选择数据库
    alter user 'root'@'localhost' identified by 'password'; //修改密码
    flush privileges; //刷新权限表

zabbix相关设置

  • 创建zabbix库

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    # mysql -uroot -p

    password

    mysql> create database zabbix character set utf8 collate utf8_bin;

    mysql> create user zabbix@localhost identified by 'password';

    mysql> grant all privileges on zabbix.* to zabbix@localhost;

    mysql> quit;

  • 导入zabbix库

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    zcat /usr/share/doc/zabbix-sql-scripts/mysql/create.sql.gz | mysql -uzabbix -p zabbix #这个zabbix为库名

  • 修改配置文件 /etc/zabbix/zabbix_server.conf

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    - DBPassword=password
    + DBPassword=设置的zabbix数据库密码

  • 在/etc/my.cnf.d/自定义一个zabbix.cnf实现数据库调优

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    [mysqld]
    user = mysql
    local_infile = 0

    datadir = /var/lib/mysql/

    default-storage-engine = InnoDB
    skip-name-resolve
    key_buffer_size = 32M
    max_allowed_packet = 128M
    table_open_cache = 1024
    table_definition_cache = 1024
    max_connections = 2000
    join_buffer_size = 1M
    sort_buffer_size = 2M
    read_buffer_size = 256K
    read_rnd_buffer_size = 256K
    myisam_sort_buffer_size = 1M
    thread_cache_size = 512
    open_files_limit = 65535
    wait_timeout = 86400

    optimizer_switch=index_condition_pushdown=off

    tmp_table_size = 32M
    max_heap_table_size = 32M

    log_bin = 1
    binlog_format=mixed
    binlog_cache_size = 32M
    max_binlog_size = 256M
    binlog_expire_logs_seconds = 604800

    # #innodb_page_size = 32K

    innodb_buffer_pool_size = 512M
    innodb_log_file_size = 256M
    innodb_log_buffer_size = 64M
    innodb_file_per_table = 1
    innodb_flush_method = O_DIRECT
    innodb_buffer_pool_instances = 4
    innodb_write_io_threads = 4
    innodb_read_io_threads = 4
    innodb_adaptive_flushing = 1
    innodb_lock_wait_timeout = 50

    innodb_flush_log_at_trx_commit = 2

    innodb_io_capacity = 300
    innodb_io_capacity_max = 400
    innodb_flush_neighbors = 0

    innodb_doublewrite = 1
    innodb_thread_concurrency = 0

    innodb_purge_threads = 1

    server_id = 1
    binlog_checksum = crc32

    innodb_lru_scan_depth = 512

    innodb_stats_on_metadata = 0

  • 创建zabbix server 站点配置文件,vim /etc/nginx/conf.d/zabbix.conf

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    server {
    #        listen          80;
    #        server_name     example.com;

            root    /usr/share/zabbix;

            index   index.php;

            location = /favicon.ico {
                    log_not_found   off;
            }

            location / {
                    try_files       $uri $uri/ =404;
            }

            location /assets {
                    access_log      off;
                    expires         10d;
            }

            location ~ /\.ht {
                    deny            all;
            }

            location ~ /(api\/|conf[^\.]|include|locale|vendor) {
                    deny            all;
                    return          404;
            }

            location ~ [^/]\.php(/|$) {
                    fastcgi_pass    unix:/run/php-fpm/zabbix.sock;
                    fastcgi_split_path_info ^(.+\.php)(/.+)$;
                    fastcgi_index   index.php;

                    fastcgi_param   DOCUMENT_ROOT   /usr/share/zabbix;
                    fastcgi_param   SCRIPT_FILENAME /usr/share/zabbix$fastcgi_script_name;
                    fastcgi_param   PATH_TRANSLATED /usr/share/zabbix$fastcgi_script_name;

                    include fastcgi_params;
                    fastcgi_param   QUERY_STRING    $query_string;
                    fastcgi_param   REQUEST_METHOD  $request_method;
                    fastcgi_param   CONTENT_TYPE    $content_type;
                    fastcgi_param   CONTENT_LENGTH  $content_length;

                    fastcgi_intercept_errors        on;
                    fastcgi_ignore_client_abort     off;
                    fastcgi_connect_timeout         60;
                    fastcgi_send_timeout            180;
                    fastcgi_read_timeout            180;
                    fastcgi_buffer_size             128k;
                    fastcgi_buffers                 4 256k;
                    fastcgi_busy_buffers_size       256k;
                    fastcgi_temp_file_write_size    256k;
            }
    }

  • 启动zabbix server和agent进程并设置开机自启

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    # systemctl restart zabbix-server zabbix-agent nginx php-fpm
    # systemctl enable zabbix-server zabbix-agent nginx php-fp

web页面中文乱码问题

  • 复制本地电脑C:\Windows\Fonts\simkai.ttf（楷体）上传到zabbix服务器网站目录的fonts目录下。此步骤可以使用winscp软件。2、修改zabbix字体为刚才上传的字体，graphfont.ttf是zabbix默认字符集。

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    cd /usr/share/zabbix/fonts
    mv graphfont.ttf graphfont.ttf.bak
    mv msyh.ttc graphfont.ttf

  • 刷新页面，可以看到监控页面中文正常显示

主机名不能输入中文

  • 修改zabbix的php文件：/usr/share/zabbix/include/defines.inc.php

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    - define('ZBX_PREG_INTERNAL_NAMES', '([0-9a-zA-Z_\. \-]+)');
    + define('ZBX_PREG_INTERNAL_NAMES', '([0-9a-zA-Z_\. \-\x{80}-\x{ff}]+)');