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Zabbix 3.0 と SNMPTT をCentOS7.X にインストールする

Last updated at Posted at 2017-08-22

##0. 事前準備

# getenforce
※SELinux は無効化か
※SELinux が起動している場合は以下


# setenforce 0
# vi /etc/selinux/config
/etc/selinux/config
SELINUX=enforcing
↓
SELINUX=disabled
# systemctl status firewalld
※firewalled は無効化されているか
※firewalled が起動している場合は以下

# systemctl stop firewalld
# systemctl disable firewalld

##1. 事前パッケージインストール

# cd /tmp
# wget http://repo.zabbix.com/zabbix/3.0/rhel/7/x86_64/zabbix-release-3.0-1.el7.noarch.rpm

# rpm -ivh zabbix-release-3.0-1.el7.noarch.rpm

##2. Zabbix インストール

# yum -y install zabbix-server-mysql zabbix-web-mysql zabbix-web-japanese zabbix-agent zabbix-get mariadb-server net-snmp

##3. MariaDB設定

■構成ファイルの編集

# cd /etc
# cp -p my.cnf my.cnf.org

# vi my.cnf
/etc/my.cnf
[mysqld]
↓↓追記
character-set-server=utf8
skip-character-set-client-handshake
innodb_buffer_pool_size = XXG
innodb_log_files_in_group = 2
innodb_log_file_size = 128M
max_allowed_packet=16M
innodb_file_per_table
log-error=/var/log/mariadb/mariadb.log

innodb_flush_log_at_trx_commit = 2
↑↑ここまで

[mysqld_safe]
log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid

↓↓以下追記
[mysqldump]
socket=/var/lib/mysql/mysql.sock
max_allowed_packet=16M

[client]
socket=/var/lib/mysql/mysql.sock
↑↑ここまで

■MariaDB起動 及び 自動起動設定

# systemctl start mariadb
# systemctl status mariadb
# systemctl enable mariadb
# systemctl is-enabled mariadb

■DBの作成

# mysqladmin -uroot create zabbix --default-character-set=utf8

■DBアカウント作成

# mysql -uroot
MariaDB [(none)]> grant all privileges on zabbix.* to zabbix@localhost identified by 'zabbixpassword';
MariaDB [(none)]> flush privileges;
MariaDB [(none)]> quit

■Zabbixの初期データベースをインポート

# cd /usr/share/doc/`rpm -qa | grep zabbix-server-mysql|cut -d"-" -f1,2,3,4`
# gunzip create.sql.gz
# mysql -uroot zabbix < create.sql

##4. httpd基本設定 apache起動

# cd /etc/httpd/conf
# cp -p httpd.conf httpd.conf.org
# vi httpd.conf
以下を追記
/etc/httpd/conf/httpd.conf
-----------
# 以下編集
ServerName <ホスト名FQDN>

# 以下追記
ServerTokens Prod
ServerSignature Off
TraceEnable off
-----------

##5. snmptrapd設定

# cd /etc/snmp
# vi snmptrapd.conf
以下の様に追記

/etc/snmp/snmptrapd.conf
以下を追記
---------
authCommunity log,execute,net <CommunityName>
perl do "/usr/sbin/snmptthandler-embedded";
---------

■snmptrapd起動 及び 自動起動設定
# systemctl start snmptrapd
# systemctl status snmptrapd
# systemctl enable snmptrapd
# systemctl is-enabled snmptrapd

##6. zabbix_server設定

# cd /etc/zabbix
# cp -p zabbix_server.conf zabbix_server.conf.org30
# vi zabbix_server.conf
------------
DBHost=localhost
DBName=zabbix
DBUser=zabbix
DBPassword=zabbixpassword
DBSocket=/var/lib/mysql/mysql.sock
SNMPTrapperFile=/var/log/snmptt/snmptt.log
StartSNMPTrapper=1
ListenIP=0.0.0.0
ValueCacheSize=500M
Timeout=30
------------

■zabbix_server起動 及び 自動起動設定
# systemctl start zabbix-server
# systemctl status zabbix-server
# systemctl enable zabbix-server
# systemctl is-enabled zabbix-server

##7. 管理画面の設定
■メインページの表示

# cd /etc/httpd/conf.d
# vi zabbix.conf
以下の様に編集
※php_value upload_max_filesize と php_value date.timezone を編集します

------------
#
# Zabbix monitoring system php web frontend
#

Alias /zabbix /usr/share/zabbix

<Directory "/usr/share/zabbix">
    Options FollowSymLinks
    AllowOverride None
    Require all granted

    <IfModule mod_php5.c>
        php_value max_execution_time 300
        php_value memory_limit 128M
        php_value post_max_size 16M
        php_value upload_max_filesize 10M
        php_value max_input_time 300
        php_value always_populate_raw_post_data -1
        # php_value date.timezone Europe/Riga
        php_value date.timezone Asia/Tokyo
    </IfModule>
</Directory>

<Directory "/usr/share/zabbix/conf">
    Require all denied
</Directory>

<Directory "/usr/share/zabbix/app">
    Require all denied
</Directory>

<Directory "/usr/share/zabbix/include">
    Require all denied
</Directory>

<Directory "/usr/share/zabbix/local">
    Require all denied
</Directory>
-----------------

■index 画面変更

# cd /etc/zabbix/web
# vi zabbix.conf.php
---- 以下をべた貼り --------------------------------
<?php
// Zabbix GUI configuration file.
global $DB;

$DB['TYPE']     = 'MYSQL';
$DB['SERVER']   = 'localhost';
$DB['PORT']     = '0';
$DB['DATABASE'] = 'zabbix';
$DB['USER']     = 'zabbix';
$DB['PASSWORD'] = 'zabbixpassword';

// Schema name. Used for IBM DB2 and PostgreSQL.
$DB['SCHEMA'] = '';

$ZBX_SERVER      = 'localhost';
$ZBX_SERVER_PORT = '10051';
$ZBX_SERVER_NAME = '';

$IMAGE_FORMAT_DEFAULT = IMAGE_FORMAT_PNG;
?>
-------------

# chown apache:apache zabbix.conf.php
# systemctl restart httpd

■Zabbix GUI にアクセス

http://<ZabbixサーバIPアドレス>/zabbix/
ユーザー名:admin
パスワード:zabbix

##8.snmptt インストール

# cd /tmp
# wget https://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/e/epel-release-7-11.noarch.rpm
# rpm -ivh epel-release-7-11.noarch.rpm
# yum -y install snmptt
# yum -y install net-snmp-perl perl-Digest-SHA1 perl-Sys-Syslog perl-List-MoreUtils perl-IO-stringy net-snmp-utils perl perl-Module-Build perl-Time-HiRes

# cd /usr/share/snmptt
# cp ./snmptthandler-embedded /usr/sbin/
# chmod 755 /usr/sbin/snmptthandler-embedded

. 関連ファイルの設定
# cd /etc/snmp/
# vi snmptt.ini
 
---- 以下の様に編集 --------------------------------
##mode = standalone 
mode = daemon

##net_snmp_perl_enable = 0
net_snmp_perl_enable = 1

##net_snmp_perl_best_guess = 0 
net_snmp_perl_best_guess = 2

#date_time_format = 
date_time_format = %Y/%m/%d %H:%M:%S

##sleep = 5
sleep = 1

##syslog_enable = 1
syslog_enable = 0
---------------------------------------------------

■プロセスを起動 
# systemctl start snmptt
# systemctl status snmptt
# systemctl enable snmptt
# systemctl is-enabled snmptt
 
■snmptrapdの設定を変更 
# cd /etc/sysconfig/
# vi snmptrapd
 
---- 以下の様に編集 ---------------------------------------------------- 
OPTIONS="-m +ALL -On"
------------------------------------------------------------------------ 
 
■プロセスを再起動 
# systemctl restart snmptrapd
# systemctl restart snmptt

■テスト 
# snmptrap -v2c -c <CommunityName> localhost '' .1.3.6.1.6.3.1.1.5.3 test i 0
# tail /var/log/snmptt/snmptt.log
※ 出力メッセージが書き足されていれば成功 

■読込ディレクトリ調整
# cd /etc/snmp
# mkdir snmptt_Confs
# mv snmptt.conf ./snmptt_Confs/

# vi snmptt.ini
------------
/etc/snmp/snmptt.conf
↓
/etc/snmp/snmptt_Confs/snmptt.conf
------------
# systemctl restart snmptt
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