Thứ Năm, 9 tháng 11, 2017

Hướng dẫn cài đặt zabbix server

Mở đầu

Zabbix là gì?

Zabbix là một phần mềm doanh nghiệp mã nguồn mở giám sát các mạng và ứng dụng, được tạo ra bởi Alexei Vladishev và được công bố lần đầu tiên vào năm 2001. Nó được thiết kế để giúp admin mạng giám sát và theo dõi tình trạng của các dịch vụ mạng, máy chủ và phần cứng mạng khác một cách thông minh nhằm đảm bảo hệ thống luôn luôn được ổn định. – Theo Wikipedia

Trong bài lab, ta sẽ triển khai cài đặt zabbix server từ source, rất cơ động để triển khai trên nhiều hệ điều hành khác nhau (centos, ubuntu, debian…).
zabbix monitoring system

 

Các thành phần của zabbix bào gồm:

  • Zabbix Server
  • Zabbix frontend (chạy trên webserver LEMP hoặc LAMP)
  • Zabbix agent

Nếu bạn nào đã thạo cài webserver thì có thể bỏ qua bước cài đặt này, còn trong bài viết chúng ta sẽ cài đặt mọi thứ từ đầu.

Chuẩn bị hệ thống:

Vmware image: CENTOS 6.9, IP: 192.168.32.142

Hướng dẫn cài đặt zabbix server

Cấu hình tối thiểu để cài zabbix:

NamePlatformCPU/MemoryDatabaseMonitored hosts
SmallCentOSVirtual ApplianceMySQL InnoDB100
MediumCentOS2 CPU cores/2GBMySQL InnoDB500
LargeRedHat Enterprise Linux4 CPU cores/8GBRAID10 MySQL InnoDB or PostgreSQL>1000
Very largeRedHat Enterprise Linux8 CPU cores/16GBFast RAID10 MySQL InnoDB or PostgreSQL>10000

Bước 1: cài đặt webserver.

Trong ví dụ, ta sẽ cài dặt webserver apache, PHP5.6 và MySql 5.6

Cài đặt MySql 5.6

wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpmwget https://dev.mysql.com/get/mysql57-community-release-el6-11.noarch.rpmrpm -ivh mysql57-community-release-el6-11.noarch.rpmrpm -ivh epel-release-latest-6.noarch.rpm

Sửa Nội dung file /etc/yum.repos.d/mysql-community.repo, dòng 27 sửa thành enable=1

[mysql-connectors-community]name=MySQL Connectors Communitybaseurl=http://repo.mysql.com/yum/mysql-connectors-community/el/6/$basearch/enabled=1gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql[mysql-tools-community]name=MySQL Tools Communitybaseurl=http://repo.mysql.com/yum/mysql-tools-community/el/6/$basearch/enabled=1gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql# Enable to use MySQL 5.5[mysql55-community]name=MySQL 5.5 Community Serverbaseurl=http://repo.mysql.com/yum/mysql-5.5-community/el/6/$basearch/enabled=0gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql# Enable to use MySQL 5.6[mysql56-community]name=MySQL 5.6 Community Serverbaseurl=http://repo.mysql.com/yum/mysql-5.6-community/el/6/$basearch/enabled=1gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql[mysql57-community]name=MySQL 5.7 Community Serverbaseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/6/$basearch/enabled=0gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql[mysql80-community]name=MySQL 8.0 Community Serverbaseurl=http://repo.mysql.com/yum/mysql-8.0-community/el/6/$basearch/enabled=0gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql[mysql-tools-preview]name=MySQL Tools Previewbaseurl=http://repo.mysql.com/yum/mysql-tools-preview/el/6/$basearch/enabled=0gpgcheck=1gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql[mysql-cluster-7.5-community]name=MySQL Cluster 7.5 Communitybaseurl=http://repo.mysql.com/yum/mysql-cluster-7.5-community/el/6/$basearch/enabled=0gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql[mysql-cluster-7.6-community]name=MySQL Cluster 7.6 Communitybaseurl=http://repo.mysql.com/yum/mysql-cluster-7.6-community/el/6/$basearch/enabled=0gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

Cài đặt MySql thông qua yum:

yum install mysql-community-server mysql-community-devel

Chạy MySQL:

service mysql startmysql_secure_installation

Cài đặt PHP 5.6

Mặc định, trên centos 6 chỉ có thể cài php5.3 qua yum, để cài php5.6 ta phải sử dụng repository khác.

wget https://rpms.remirepo.net/enterprise/remi-release-6.rpmrpm -Uvh remi-release-6.rpm

Sửa Nội dung: /etc/yum.repos.d/remi.repo dòng 30 sửa enable=1

# Repository: http://rpms.remirepo.net/# Blog:       http://blog.remirepo.net/# Forum:      http://forum.remirepo.net/[remi]name=Remi's RPM repository for Enterprise Linux 6 - $basearch#baseurl=http://rpms.remirepo.net/enterprise/6/remi/$basearch/#mirrorlist=https://rpms.remirepo.net/enterprise/6/remi/httpsmirrormirrorlist=http://rpms.remirepo.net/enterprise/6/remi/mirrorenabled=0gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi[remi-php55]name=Remi's PHP 5.5 RPM repository for Enterprise Linux 6 - $basearch#baseurl=http://rpms.remirepo.net/enterprise/6/php55/$basearch/#mirrorlist=https://rpms.remirepo.net/enterprise/6/php55/httpsmirrormirrorlist=http://rpms.remirepo.net/enterprise/6/php55/mirror# NOTICE: common dependencies are in "remi-safe"enabled=0gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi[remi-php56]name=Remi's PHP 5.6 RPM repository for Enterprise Linux 6 - $basearch#baseurl=http://rpms.remirepo.net/enterprise/6/php56/$basearch/#mirrorlist=https://rpms.remirepo.net/enterprise/6/php56/httpsmirrormirrorlist=http://rpms.remirepo.net/enterprise/6/php56/mirror# NOTICE: common dependencies are in "remi-safe"enabled=1gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi[remi-test]name=Remi's test RPM repository for Enterprise Linux 6 - $basearch#baseurl=http://rpms.remirepo.net/enterprise/6/test/$basearch/#mirrorlist=https://rpms.remirepo.net/enterprise/6/test/mirrormirrorlist=http://rpms.remirepo.net/enterprise/6/test/mirror# WARNING: If you enable this repository, you must also enable "remi"enabled=0gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi[remi-debuginfo]name=Remi's RPM repository for Enterprise Linux 6 - $basearch - debuginfobaseurl=http://rpms.remirepo.net/enterprise/6/debug-remi/$basearch/enabled=0gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi[remi-php55-debuginfo]name=Remi's PHP 5.5 RPM repository for Enterprise Linux 6 - $basearch - debuginfobaseurl=http://rpms.remirepo.net/enterprise/6/debug-php55/$basearch/enabled=0gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi[remi-php56-debuginfo]name=Remi's PHP 5.6 RPM repository for Enterprise Linux 6 - $basearch - debuginfobaseurl=http://rpms.remirepo.net/enterprise/6/debug-php56/$basearch/enabled=0gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi[remi-test-debuginfo]name=Remi's test RPM repository for Enterprise Linux 6 - $basearch - debuginfobaseurl=http://rpms.remirepo.net/enterprise/6/debug-test/$basearch/enabled=0gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi

Cài đặt PHP 5.6 qua yum:

yum install php php-cli php-common php-devel php-pear php-fpm php-gd php-bcmath php-mbstring php-xml php-mysql php-xmlwriter php-ldap

Cài đặt apache HTTP server:

yum install httpd httpd-devel

Cấu hình lại thông số php trong file /etc/php.ini cho phù hợp với yêu cầu của zabbix:

sed -i 's/^max_execution_time.*/max_execution_time=300/' /etc/php.inised -i 's/^max_input_time.*/max_input_time=300/' /etc/php.inised -i 's/^post_max_size.*/post_max_size=32M/' /etc/php.inised -i 's/^upload_max_filesize.*/upload_max_filesize=16M/' /etc/php.inised -i "s/^\;date.timezone.*/date.timezone=\'Asia\/Bangkok\'/" /etc/php.inised -i "s/^\;always_populate_raw_post_data.*/always_populate_raw_post_data=-1/" /etc/php.ini

Đổi port mặc định của webserver để tăng bảo mật:

sed -i "s/^\Listen.*/Listen 8889/" /etc/httpd/conf/httpd.confecho "ServerName 127.0.0.1" >> /etc/httpd/conf/httpd.conf

Khởi chạy web server:

service httpd start

Kiểm tra web server & PHP đã chạy chưa:

echo "<?php phpinfo(); ?>" > /var/www/html/info.phpcurl -I localhost:8889/info.php
HTTP/1.1 200 OKDate: Thu, 09 Nov 2017 09:47:57 GMTServer: Apache/2.2.15 (CentOS)X-Powered-By: PHP/5.6.31Connection: closeContent-Type: text/html; charset=UTF-8

Bước 2: Cài đặt zabbix server & zabbix agent

Tải source Zabbix:

Các phiên bản Zabbix có thể tại tại:
https://sourceforge.net/projects/zabbix/files/
Tải Bản mới nhất: 3.4.2:
https://sourceforge.net/projects/zabbix/files/ZABBIX%20Latest%20Stable/3.4.2/zabbix-3.4.2.tar.gz

cd /usr/local/src/wget https://sourceforge.net/projects/zabbix/files/ZABBIX%20Latest%20Stable/3.4.2/zabbix-3.4.2.tar.gz

Xả nén bộ cài:

tar -xzvf zabbix-3.4.2.tar.gz

Cài đặt Cơ sở dữ liệu cho Zabbix

* Tạo CSDL zabbix:

# mysql -u root -p
create database zabbix character set utf8 collate utf8_bin;grant all privileges on zabbix.* to zabbix@localhost identified by '123456';flush privileges;
Enter password:Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 13Server version: 5.6.37 MySQL Community Server (GPL)Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql> create database zabbix character set utf8 collate utf8_bin;Query OK, 1 row affected (0.00 sec)mysql> grant all privileges on zabbix.* to zabbix@localhost identified by '123456';Query OK, 0 rows affected (0.00 sec)mysql> flush privileges;Query OK, 0 rows affected (0.00 sec)mysql> quitBye

* Import cấu trúc CSDL của zabbix :

cd /usr/local/src/zabbix-3.4.2/database/mysql/mysql -u root -p -D zabbix < schema.sqlmysql -u root -p -D zabbix < images.sqlmysql -u root -p -D zabbix < data.sql

Build Zabbix server và cấu hình:

* Cài đặt các thư viện cần thiết để build source:

# yum install gcc make libxml2-devel net-snmp-devel libcurl-devel libssh2-devel libevent-devel pcre-devel iksemel-devel java-1.8.0-openjdk-devel openldap-devel openssl-devel

* Tiến hành build source:

groupadd zabbixuseradd -g zabbix zabbixcd /usr/local/src/zabbix-3.4.2./configure --enable-server --enable-agent --prefix=/usr/local --sysconfdir=/etc/zabbix --enable-java --with-mysql --with-jabber --with-libcurl --with-net-snmp --with-ldap --with-iconv --with-libxml2 --with-opensslmakemake installchown zabbix:zabbix /var/log/zabbix/mkdir /var/run/zabbix/chown zabbix:zabbix /var/run/zabbix/

* Sửa file /etc/zabbix/zabbix_server.conf thành:

LogFile=/var/log/zabbix/zabbix_server.logLogFileSize=500DBHost=localhostDBName=zabbixDBUser=zabbixDBPassword=123456PidFile=/var/run/zabbix/zabbix_server.pid

* Sửa file /etc/zabbix/zabbix_agentd.conf thành:

# This is a configuration file for Zabbix agent daemon (Unix)# To get more information about Zabbix, visit http://www.zabbix.comLogFile=/var/log/zabbix/zabbix_agentd.logLogFileSize=200PidFile=/var/run/zabbix/zabbix_agent.pidServer=127.0.0.1StartAgents=5ServerActive=127.0.0.1Hostname=ZabbixServerBufferSend=15BufferSize=300MaxLinesPerSecond=40############ ADVANCED PARAMETERS #################Timeout=5User=zabbixInclude=/etc/zabbix/zabbix_agentd.conf.d/*.conf

* Tạo file init script: /etc/init.d/zabbix-server

#!/bin/bash## zabbix_server  This shell script takes care of starting#                       and stopping Zabbix Server daemon## chkconfig:   35 96 14# description:  ZABBIX is an all-in-one 24x7 monitoring system## Source function library.. /etc/rc.d/init.d/functions# Source networking configuration.. /etc/sysconfig/network# Check that networking is up.[ ${NETWORKING} = "no" ] && exit 0RETVAL=0# Setting up configurationZABBIX_NAME="zabbix_server"ZABBIX_CONF="/usr/local/etc/$ZABBIX_NAME.conf"if [ ! -f $ZABBIX_CONF ]then    echo "$ZABBIX_NAME configuration file $ZABBIX_CONF does not exist. "    exit 3fi# Source config file to load configuration. $ZABBIX_CONFZABBIX_USER="zabbix"ZABBIX_BIND="/usr/local/sbin"ZABBIX_BINF="$ZABBIX_BIND/$ZABBIX_NAME"if [ ! -x $ZABBIX_BINF ] ; then    echo "$ZABBIX_BINF not installed! "    exit 4fiZABBIX_LOGD="`dirname $LogFile`"ZABBIX_LOGF="$LogFile"if [ -z $ZABBIX_LOGF ]then    echo "LogFile path is not specified in $ZABBIX_CONF"    exit 5fiZABBIX_PIDF="$PidFile"if [ -z $ZABBIX_PIDF ]then    echo "LogFile path is not specified in $ZABBIX_CONF"    exit 5fi# Functionsruncheck() {    [ ! -f $ZABBIX_PIDF ] && return 0    PID=`cat $ZABBIX_PIDF`    checkpid $PID    [ $? -ne 0 ] && rm -f $ZABBIX_PIDF}pidofzab() {    pidofproc -p "$ZABBIX_PIDF" $ZABBIX_NAME}start() {    # Start daemons.    echo -n $"Starting $ZABBIX_NAME: "    if [ -n "`pidofzab`" ]; then      echo -n "$ZABBIX_NAME: already running"      failure      echo      return 1    fi    if [ ! -d $ZABBIX_LOGD ]; then      mkdir -p $ZABBIX_LOGD      chown $ZABBIX_USER $ZABBIX_LOGD    fi    runcheck    daemon --user $ZABBIX_USER $ZABBIX_BINF -c $ZABBIX_CONF    RETVAL=$?    if [ -f $ZABBIX_PIDF ]; then      chown $ZABBIX_USER $ZABBIX_PIDF    fi    echo    [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$ZABBIX_NAME    return $RETVAL}stop() {    # Stop daemons.    echo -n $"Shutting down $ZABBIX_NAME: "    killproc $ZABBIX_NAME    RETVAL=$?    echo    [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$ZABBIX_NAME    return $RETVAL}# See how we were called.case "$1" in  start) start ;;  stop) stop ;;  restart|reload) stop usleep 1000000 start RETVAL=$? ;;  condrestart) if [ -f /var/lock/subsys/$ZABBIX_NAME ]; then     stop     usleep 1000000     start     RETVAL=$? fi ;;  status) status $ZABBIX_NAME RETVAL=$? ;;  *)        echo $"Usage: $0 {start|stop|restart|condrestart|status}" exit 1esacexit $RETVAL

*Tạo file init script: /etc/init.d/zabbix_agentd có nội dung:

#!/bin/bash## zabbix_agentd  This shell script takes care of starting#                       and stopping Zabbix Agent daemon## chkconfig:  35 95 15# description:  ZABBIX is an all-in-one 24x7 monitoring system## Source function library.. /etc/rc.d/init.d/functions# Source networking configuration.. /etc/sysconfig/network# Check that networking is up.[ ${NETWORKING} = "no" ] && exit 0RETVAL=0# Setting up configurationZABBIX_NAME="zabbix_agentd"ZABBIX_CONF="/etc/zabbix/$ZABBIX_NAME.conf"if [ ! -f $ZABBIX_CONF ]then    echo "$ZABBIX_NAME configuration file $ZABBIX_CONF does not exist. "    exit 3fi# Source config file to load configuration. $ZABBIX_CONFZABBIX_USER="zabbix"ZABBIX_BIND="/usr/local/sbin"ZABBIX_BINF="$ZABBIX_BIND/$ZABBIX_NAME"if [ ! -x $ZABBIX_BINF ] ; then    echo "$ZABBIX_BINF not installed! "    exit 4fiZABBIX_LOGD="`dirname $LogFile`"ZABBIX_LOGF="$LogFile"if [ -z $ZABBIX_LOGF ]then    echo "LogFile path is not specified in $ZABBIX_CONF"    exit 5fiZABBIX_PIDF="$PidFile"if [ -z $ZABBIX_PIDF ]then    echo "LogFile path is not specified in $ZABBIX_CONF"    exit 5fi# Functionsruncheck() {    [ ! -f $ZABBIX_PIDF ] && return 0    PID=`cat $ZABBIX_PIDF`    checkpid $PID    [ $? -ne 0 ] && rm -f $ZABBIX_PIDF}pidofzab() {    pidofproc -p "$ZABBIX_PIDF" $ZABBIX_NAME}start() {    # Start daemons.    echo -n $"Starting $ZABBIX_NAME: "    if [ -n "`pidofzab`" ]; then      echo -n "$ZABBIX_NAME: already running"      failure      echo      return 1    fi    if [ ! -d $ZABBIX_LOGD ]; then      mkdir -p $ZABBIX_LOGD      chown $ZABBIX_USER $ZABBIX_LOGD    fi    runcheck    daemon --user $ZABBIX_USER $ZABBIX_BINF -c $ZABBIX_CONF    RETVAL=$?    if [ -f $ZABBIX_PIDF ]; then      chown $ZABBIX_USER $ZABBIX_PIDF    fi    echo    [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$ZABBIX_NAME    return $RETVAL}stop() {    # Stop daemons.    echo -n $"Shutting down $ZABBIX_NAME: "    killproc $ZABBIX_NAME    RETVAL=$?    echo    [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$ZABBIX_NAME    return $RETVAL}# See how we were called.case "$1" in  start) start ;;  stop) stop ;;  restart|reload) stop usleep 1000000 start RETVAL=$? ;;  condrestart) if [ -f /var/lock/subsys/$ZABBIX_NAME ]; then     stop     usleep 1000000     start     RETVAL=$? fi ;;  status) status $ZABBIX_NAME RETVAL=$? ;;  *)        echo $"Usage: $0 {start|stop|restart|condrestart|status}" exit 1esacexit $RETVAL

* Chạy server & agent:

server zabbix_server startservice zabbix_agentd start

Cài đặt zabbix web frontend:

* Copy frontend source code vào thư mục chứa website:

mkdir /var/www/html/zabbixcp -a /usr/local/src/zabbix-3.4.2/frontends/php/* /var/www/html/zabbixchown -R apache:apache /var/www/html/zabbix/

Kết thúc việc cài đặt zabbix, tiếp theo t a sẽ cấu hình zabbix frontend kết nối với zabbix_server

Bước 3: Cấu hình zabbix Frontend.

Truy cập địa chỉ http://192.168.32.142:8889/zabbix

Sử dụng đăng nhập mặc đinh:

username: Admin

Password: zabbix

Cấu hình theo hình ảnh:

Next Prev

Welcome Screen  | 

Kiểm tra thông số | 

Kết nối với DB |

Kết nối Zabbix Server |

Confirm |

Finish! |

Login Screen |

Configure host |

Next Prev

Kết Luận

Qua một bài viết dài, chúng ta đã nắm được cách cài đặt zabbix server và cấu hình client bằng zabbix agent. Nếu bạn nào có nhu cầu tìm hiểu thêm có thể theo dõi thêm một số bài viết sau: cách monitor server windows/linux bằng agent, snmp, cấu hình gửi cảnh báo qua mail, sms.

Với bạn nào “lười” cài đặt từ source code, mình có build 1 script cài đặt tự động trên debian 9: các bạn có thể tham khảo.

zabbix_auto.sh

#!/bin/sh#Script Description: Auto Install Zabbix server & Zabbix Agent on debian 9 Stretch. The default Zabbiz version is 3.x, php7.0 and Mariadb 10.x#Version: 1.0.0#Author: sanbangtatca022015@gmail.com, redistributed from : https://www.hiroom2.com#set -e#get random string for SQL & Zabbix password and stored to variableMYSQL_VERSION=5.5[ -z "${MYSQL_PASSWD}" ] && MYSQL_PASSWD=`date +%s | sha256sum | base64 | head -c 15 ; echo`[ -z "${ZABBIX_PASSWD}" ] && ZABBIX_PASSWD=`date +%s | md5sum | base64 | head -c 15 ; echo`# write password to file for later use cat > "/root/zbinstallpwd.txt" <<END==MYSQL ROOT PASSWORD:==$MYSQL_PASSWD==ZABBIX_SQL_PASSWORD:==$ZABBIX_PASSWDENDzabbix_server_install(){  cat <<EOF | debconf-set-selectionsmysql-server-${MYSQL_VERSION} mysql-server/root_password password ${MYSQL_PASSWD}mysql-server-${MYSQL_VERSION} mysql-server/root_password_again password ${MYSQL_PASSWD}EOF  apt-get install -y zabbix-server-mysql zabbix-frontend-php \       php-mysql libapache2-mod-php  cp /usr/share/doc/zabbix-frontend-php/examples/apache.conf \       /etc/apache2/conf-available/zabbix-frontend-php.conf  a2enconf zabbix-frontend-php  timezone=$(cat /etc/timezone)  sed -e 's/^post_max_size = .*/post_max_size = 16M/g' \       -e 's/^max_execution_time = .*/max_execution_time = 300/g' \       -e 's/^max_input_time = .*/max_input_time = 300/g' \       -e "s:^;date.timezone =.*:date.timezone = \"${timezone}\":g" \       -i /etc/php/7.0/apache2/php.ini  cat <<EOF | mysql -uroot -p${MYSQL_PASSWD}create database zabbix character set utf8 collate utf8_bin;grant all privileges on zabbix.* to zabbix@localhost identified by '${ZABBIX_PASSWD}';exitEOF  for sql in schema.sql.gz images.sql.gz data.sql.gz; do    zcat /usr/share/zabbix-server-mysql/"${sql}" | \      mysql -uzabbix -p${ZABBIX_PASSWD} zabbix;  done  sed -e 's/# ListenPort=.*/ListenPort=10051/g' \       -e "s/# DBPassword=.*/DBPassword=${ZABBIX_PASSWD}/g" \       -i /etc/zabbix/zabbix_server.conf  # Skip setup.php  cat <<EOF | tee /etc/zabbix/zabbix.conf.php<?php// Zabbix GUI configuration file.global \$DB;\$DB['TYPE']     = 'MYSQL';\$DB['SERVER']   = 'localhost';\$DB['PORT']     = '0';\$DB['DATABASE'] = 'zabbix';\$DB['USER']     = 'zabbix';\$DB['PASSWORD'] = '${ZABBIX_PASSWD}';// 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;?>EOF  a2enmod ssl  a2ensite default-ssl  systemctl enable apache2 zabbix-server  systemctl restart apache2 zabbix-server}zabbix_agent_install(){  # This Hostname is used for Host name in  # Configuration -> Hosts -> Create Host.  apt-get install -y zabbix-agent  sed -e "s/^Hostname=.*/Hostname=localhost/g" \       -i /etc/zabbix/zabbix_agentd.conf}zabbix_main(){  zabbix_server_install  zabbix_agent_install}zabbix_main

 

 

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