ZABBIX 3.x PHP7環境への導入 のバックアップ(No.1)

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• ZABBIX 3.x PHP7環境への導入 へ行く。
  • 1 (2017-06-04 (日) 23:25:02)
  • 2 (2017-06-04 (日) 23:39:28)

監視システム(NMS) 目次

CentOS7にZabbix3系をPHP7系と一緒に入れる †

CentOS7 †

最小インストールで構築

MariaDBをインストール †

• /etc/yum.repos.d/MariaDB.repo

  # MariaDB 10.1 CentOS repository list
  # http://mariadb.org/mariadb/repositories/
  [mariadb]
  name = MariaDB
  baseurl = http://yum.mariadb.org/10.1/centos7-amd64
  gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
  gpgcheck=1

• YUMで MariaDB 10.1をインストール

  yum install mariadb-server mariadb mariadb-devel mariadb-libs

• MariaDBを起動し、自動起動を有効にする

  systemctl start mariadb
  systemctl enable mariadb

• 初期設定スクリプトを使い、rootユーザのパスワードを設定

  mysql_secure_installation

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY! 

In order to log into MariaDB to secure it, we'll need the current
password for the root user.  If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none): ←Enter
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.

Set root password? [Y/n]　 ←Enter
New password: ←パスワード入力
Re-enter new password: ←パスワード再入力
Password updated successfully!
Reloading privilege tables..
 ... Success!


By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB 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] ←Enter
 ... 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]  ←Enter
 ... Success!

By default, MariaDB 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]  ←Enter
 - Dropping test database...
 ... Success!
 - 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]  ←Enter
 ... Success!

Cleaning up...

All done!  If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!

Apache,PHPをインストール †

• YUMでApacheをインストール

  yum install httpd

• Apacheを起動し、自動起動を有効にする

  systemctl start httpd
  systemctl enable httpd

• PHP 7系をインストールするために必要なYUMのリポジトリ(EPEL,Remi)を追加

  yum install epel-release
  rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-7.rpm

• Remiリポジトリを指定し、PHP 7と必要なパッケージをインストール

  yum install --enablerepo=remi-php70 php php-mysqlnd php-ldap php-gd php-xml php-bcmath php-mbstring php-pecl-mysql

• php.iniにタイムゾーンを設定

  sed -i 's/\;date\.timezone\ \=/date\.timezone\ \=\ Asia\/Tokyo/g' /etc/php.ini

• php.ini にZabbix Serverの推奨値を設定

  sed -i "s/^post_max_size.*$/post\_max\_size\ \=\ 16M/g" /etc/php.ini
  sed -i "s/^max_execution_time.*$/max\_execution\_time\ \=\ 300/g" /etc/php.ini
  sed -i "s/^max_input_time.*$/max\_input\_time\ \=\ 300/g" /etc/php.ini

• Apacheを再起動

  systemctl restart httpd

Zabbix serverをインストール †

• Zabbix Serverのインストールに必要なYUMのリポジトリを追加

  rpm -Uvh http://repo.zabbix.com/zabbix/3.0/rhel/7/x86_64/zabbix-release-3.0-1.el7.noarch.rpm

• Zabbix Serverと必要なパッケージをインストール

  yum install --enablerepo=remi-php70 zabbix-server zabbix-server-mysql zabbix-web-mysql zabbix-web-japanese

• MariaDBにZabbix Server用のデータベースとユーザを作成。ユーザ名とパスワードは、ともに「zabbix」とする。

  mysql -p

Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 10
Server version: 10.1.11-MariaDB MariaDB Server

Copyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> create database zabbix character set utf8 collate utf8_bin;
Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]> grant all privileges on zabbix.* to zabbix@localhost identified by 
'zabbix';
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> \q
Bye

• Zabbix Server用のデータをMariaDBにインポート

  cd /usr/share/doc/zabbix-server-mysql-3.2.6/
  gzip -d create.sql.gz
  mysql -u zabbix -pzabbix zabbix < create.sql
  cd

• Zabbix Serverの設定ファイルをバックアップ

  mv -v /etc/zabbix/zabbix_server.conf /etc/zabbix/zabbix_server.conf.bak

• /etc/zabbix/zabbix_server.conf

  LogFile=/var/log/zabbix/zabbix_server.log
  LogFileSize=0
  PidFile=/var/run/zabbix/zabbix_server.pid
  DBSocket=/var/lib/mysql/mysql.sock
  SNMPTrapperFile=/var/log/snmptt/snmptt.log
  AlertScriptsPath=/etc/zabbix/alertscripts
  ExternalScripts=/etc/zabbix/externalscripts
  
  DBHost=localhost
  DBName=zabbix
  DBUser=zabbix
  DBPassword=zabbix

• PHP7対応で書き換える

  sed -i "s/PHP\_VERSION\,\ '5\.6'/PHP\_VERSION\,\ '7\.1'/g" /usr/share/zabbix/include/classes/setup/CFrontendSetup.php

• apache再起動

  systemctl restart httpd

• web画面の確認

  WebUIにアクセスするには「http://サーバIPアドレス/zabbix」とブラウザに入力
  表示されない場合はfirewallを止めてみる