Installing Zabbix Network Monitoring Server on CentOS 8: We have setup the Zabbix yum repository, therefore, we can easily install Zabbix packages by using dnf command. By default, SELinux is enabled in CentOS 8. Now I want to share how to install Zabbix 5.0 for your Centos 8 vps or local server. NGINX is also used as a load balancer or a reverse proxy for Apache.. Confirm service status using systemctl command. Zabbix is being downloaded over 4 000 000 times every year for a reason. Configure LibModsecurity with Nginx on CentOS 8 Run System Update. 1. NGINX is probably one of the most popular web servers in use nowadays.. Use Zabbix default admin username “Admin” and password “zabbix” (without quotes) to login to Zabbix frontend at URL “http://server_ip_or_dns_name/zabbix” via your browser. In this post, we will install step by step the Zabbix server on CentOS 8 / RHEL 8 / Oracle Linux 8. System Requirements Hardware. After the installation is finished, run the following commands to enable and start the server: This will make Nginx start at system boot. How can one install Zabbix Server 5.0 on CentOS 8 / RHEL 8 Linux?. In my example, I have installed Zabbix on server 192.168.1.161 so I will enter in my browsers URL field http://192.168.1.161/zabbix (you can find the IP address of your server by typing “ip a” command in the terminal). It is used in monitoring network devices, systems, server applications, hardware appliances and IoT devices among others. That would be 800 MB because my CentOS server has 2 GB RAM.eval(ez_write_tag([[300,250],'bestmonitoringtools_com-large-mobile-banner-2','ezslot_11',122,'0','0'])); I didn’t have any problems with memory, but if your Zabbix proxy crashes because of lack of memory, reduce “innodb_buffer_pool_size” and restart MySQL server. Install Nginx and SSL/TLS module on CentOS 8. As a result, the Zabbix repository has been added to the CentOS 8 system. LibMosecurity is the newest version of ModSecurity version 2.9 and below. Zabbix agent packages and utilities Zabbix get and Zabbix sender are available for RHEL 7, ... # yum install zabbix-debuginfo. Zabbix is a powerful open source monitoring solution used to monitor systems, Network devices, server applications, Hardware appliances, IoT devices, e.t.c. You can use proxy to monitor remote locations behind the firewall … However, on RHEL 8, MariaDB database is supported by default, as a drop-in replacement for MySQL. You now have Zabbix Server on CentOS 8 / RHEL 8. If you accidentally left it in enforcing mode then you will receive the “Zabbix server is not running: the information displayed may not be current” warning on the Zabbix frontend and “cannot set resource limit: [13] Permission denied” in the log file. How To Install Zabbix 5 On CentOS 8 July 1, 2020 admin 0 CentOS, Linux, Operating Systems, Tutorials, Zabbix 5 has a lot of GUI imrovment and other new features, notice the installation on CentOS 8 is a little different. Note: Nginx is a well-known web server alternative to Apache. If you need quick commands to install Apache on RHEL / CentOS 8, use below: Start and enable httpd service to start at boot. Allow http and Zabbix service ports on the firewall: Restart httpd and php-fpm service.eval(ez_write_tag([[250,250],'computingforgeeks_com-leader-1','ezslot_18',115,'0','0'])); Open Zabbix URL: http:///zabbix in your browser. Other RHEL 8 monitoring installation guides: How to Install Netdata on RHEL / CentOS 8, Install and Configure Telegraf on RHEL / CentOS 8, How to Install Prometheus on RHEL / CentOS 8, How to Install Grafana on RHEL / CentOS 8. You can partition MySQL tables in 5 minutes using this simple guide. In this guide we will install Zabbix Server 4 on CentOS 7/RHEL 7. This tutorial focuses on how to install a NGINX web server on Centos 8 hosts. This wraps up this tutorial on securing Nginx with Let’s Encrypt on CentOS 8.Let’s Encrypt offers an effective and hassle-free way of securing your Nginx webserver that would otherwise be a complex affair to do manually.. Zabbix works in a Client/Server model. Therefore, all remote machines must be provided with a client for the server to work. To do this, we will need the policycoreutils-python tool, so let’s install it: Well done! Reading Time: 2 minutes DigitalOcean Zabbix (SSL) with NGINX and Certbot The default Zabbix image from DigitalOcean installs Zabbix on CentOS without an SSL. Wait for the Zabbix installation finished. In this tutorial, we will set up the Zabbix 5 server monitoring system on CentOS 8. After that, dnfwill install Nginx and any required dependencies to your server. Stop and start the services in the same order as below: Sometimes you will need to check or restart Zabbix, MySQL or Apache service – use commands below to do that. Open “zabbix_server.conf” file with command: “nano /etc/zabbix/zabbix_server.conf” and add this configuration anywhere in file: This is not a perfect configuration, keep in mind that you can optimize it even more. Install Zabbix on CentOS 8 / RHEL 8 / Oracle Linux 8. Consider changing your password for security reasons. I expect that you are comfortable in Vim and general Linux administration. Navigate to Administration > Users > Admin > Password > Change Password. 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Create file “10_my_tweaks.cnf" with “nano /etc/my.cnf.d/10_my_tweaks.cnf” and paste this configuration: Save and exit the file (ctrl+x, followed by y and enter) and set the correct file permission: Configuration parameter max_connections must be larger than the total number of all Zabbix proxy processes plus 150. dnf update The Zabbix agent runs on client machines, collects and sends data to the Zabbix server. Install the nginxpackage with: When prompted, enter y to confirm that you want to install nginx. Enough of talk lets do some work! It is therefore known as ModSecurity version 3. Founder of Computingforgeeks. Zabbix is a powerful and open-source network monitoring tool used to monitor network equipment, server software, and performance. dnf -y install zabbix-server-mysql zabbix-web-mysql zabbix-agent. The output shows you a list of Nginx packages that have been installed, as in the image below. Cloud Servers Intel Xeon Gold 6254 3.1 GHz CPU, SLA 99,9%, 100 Mbps channel from 4 EUR/month Try. You can find more information about Zabbix’s life cycle and release policies on the official website. It is not needed to run Zabbix agent. It is not needed to run Zabbix agent. For systems without an agent, generic monitoring protocols such as Simple Network Management Protocol (SNMP) or Intelligent Platform Management Interface (IPMI) can be used. CONGRATULATIONS!You have successfully installed Zabbix 5 on CentOS 8 and now you can monitor anything!No need to change anything else as other steps are optional.CONTINUE TO LEARN MORE:How to create MySQL partitions on History and Events tablesOptimizing Zabbix server and MySQL databaseManaging Zabbix / MySQL / Apache serviceEnable and configure SELinux on Zabbixeval(ez_write_tag([[300,250],'bestmonitoringtools_com-leader-1','ezslot_6',120,'0','0'])); Zabbix’s housekeeping process is responsible for deleting old trend and history data. */SELINUX=permissive/g' /etc/selinux/config, Zabbix 5.0 LTS version (supported until May 31, 2025), Zabbix 5.2 standard version (supported until May 31, 2021). 3. You need to change the password for admin user after the first login for security reasons. Install optional NGINX modules. In this tutorial, we will walk through the necessary steps to install and configure the Zabbix agent on CentOS 8. Removing old data from the database using SQL delete query can negatively impact database performance. In order to configure Nginx HTTP server to use SSL/TLS certificates, you first need to install it and the SSL/TLS module. Don’t worry, this can be easily fixed, so without further delay, let’s configure SELinux for Zabbix! If you’re not a fan of SELinux, I recommend to you set it in Permissive mode. Install Zabbix Server On CentOS 8. Installing LAMP stack on CentOS 8: Connect to zabbix-01.recipes.com as root user by using a ssh client. Begin by updating your system packages. Pronounced “engine-x“, NGINX is used to serve 32% of all the active websites online, just above Apache HTTP Web servers. Installing the necessary packages for Zabbix Note: Nginx is a well-known web server alternative to Apache. This article will help you to install zabbix agent on CentOS/RHEL 8 Linux systems. Since the Zabbix is enterprise-ready, you can use it for monitoring the environments ranging from small to larger. Proxy installation. In this guide, we are going to learn how to configure LibModsecurity with Nginx on CentOS 8. To install the latest version of Nginx web server, you need to update the system software packages using … Connect to your newly installed Zabbix frontend using URL “http://server_ip_or_dns_name/zabbix” to initiate the Zabbix installation wizard. Zabbix Server depends on the following software applications: MySQL/ MariaDB database server; Apache web server; PHP with required extensions; MySQL or MariaDB can be a remote server, but php and httpd need to be installed on the Zabbix server. Enable SELinux  boolean “httpd_can_connect_zabbix” that will allow http daemon to connect to Zabbix: Enable SELinux  boolean “zabbix_can_network” that will allow Zabbix to connect to all TCP ports : Turn on SELinux by setting it to work in enforcing mode: Just in case, we will create an additional SELinux policy for each error in the audit log (“/var/log/audit/audit.log“). Your site should now be fully encrypted. This last section is for installing and configuring Zabbix server on CentOS 8 / RHEL 8. eval(ez_write_tag([[250,250],'computingforgeeks_com-banner-1','ezslot_25',145,'0','0']));Then install Zabbix server packages on CentOS 8 / RHEL 8: For Zabbix server and Zabbix proxy daemons, a database is required. Best Books to learn Web Development – PHP, HTML, CSS, JavaScript... 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Zabbix is 100% free open-source ultimate enterprise-level software designed for monitoring availability and performance of IT infrastructure components and services. Zabbix server is installable on any Linux distribution, but in this tutorial, I will show you how to install the latest Zabbix 5.0 LTS or 5.2 Standard release on CentOS 8 / RHEL 8. Install NGINX. Zabbix 5.0 LTS (01) Install Zabbix 5.0 LTS (02) Initial Setup (03) Change Admin Password (04) Set Monitoring Target Host (05) Set SMTP for Notification ... CentOS 8 : Nginx (01) Install Nginx (02) Configure Virtual Hostings (03) Configure SSL/TLS (04) Enable Userdir (05) Basic Authentication You can read a case-study about Zabbix popularity and find out more about open-source movement in this article. While it is acceptable to disable SELinux in a lab environment, depending on the requirements of the local security IT team, you may need to enable and configure SELinux in your production environment. If you are a fan of SELinux you can set it to permissive mode : Access the Templates tab on the top of the screen. Check the performance tuning section in the Documentation. Nginx is one of the most popular web servers in the world and is responsible for hosting some of the largest and most popular sites on the internet. However, the amount of memory depends on the number of hosts, and the parameters are being monitored. As a result, the Zabbix repository has been added to the CentOS 8 system. Now I want to share how to install Zabbix server 5.0 on your centos 7 server. This tutorial will show you how to set up an SSL using Let’s Encrypt Certbot. Here, we are installing Zabbix with MySQL database support by using following command. This tutorial will show you how to set up an SSL using Let’s Encrypt Certbot. Many of us have received that annoying alarm “Zabbix housekeeper processes more than 75% busy” because of that. Nginx as the mod_ssl packages are available on the default CentOS 8 repositories and can simply be installed by executing the command below; If Zabbix server and proxy are installed on the same host, their databases must be created with different names! Reading Time: 2 minutes DigitalOcean Zabbix (SSL) with NGINX and Certbot The default Zabbix image from DigitalOcean installs Zabbix on CentOS without an SSL. 2019年10月12日(土) 2019年10月29日(火) Linux Zabbix CentOS 8 で Zabbix4.0をインストール(nginx + PHP-FPM + MySQL) Zabbix Server depends on the following software applications:eval(ez_write_tag([[580,400],'computingforgeeks_com-medrectangle-3','ezslot_8',144,'0','0'])); MySQL or MariaDB can be a remote server, but php and httpd need to be installed on the Zabbix server. Download Zabbix for free and try it yourself! eval(ez_write_tag([[300,250],'computingforgeeks_com-leader-3','ezslot_23',147,'0','0']));Login to Zabbix admin dashboard with admin user and password zabbix. You can find out more about the parameters supported in a Zabbix server configuration file in the official documentation.eval(ez_write_tag([[300,250],'bestmonitoringtools_com-large-mobile-banner-1','ezslot_10',121,'0','0'])); If you try to start the Zabbix server you will receive an error “[Z3001] connection to database 'Zabbix' failed: [1040] Too many connections” in the log “/var/log/zabbix/zabbix_server.log” because we are using more Zabbix server processes than MySQL can handle. However, in this case, we are sharing a server with Zabbix and Apache processes so you should set innodb_buffer_pool_size to 40% of total system memory. Zabbix requires at least 128MB memory and 256MB of disk space to start with. Zabbix uses a MySQL database to store its data. Edit file “/etc/php-fpm.d/zabbix.conf” with command: Uncomment line in zabbix.conf that starts with “; php_value date.timezone Europe/Riga” by removing symbol “;” and set the right timezone for your country, for example: Save and exit file (ctrl+x, followed by y and enter). Our next guide will cover installation and configuration of Zabbix agent. Now run the dnf command below to install Zabbix Server and Agent. That problem can be easily solved with the database partitioning. With Zabbix Serve you can monitor Mysql, Postgresql, Tomcat, Apache, Nginx, windows server You can use proxy to monitor remote locations behind the firewall … If you get message like beloweval(ez_write_tag([[336,280],'computingforgeeks_com-leader-2','ezslot_22',117,'0','0'])); Then download the configuration file and place it under in the Zabbix webserver server configuration file – /var/www/html/zabbix/conf/zabbix.conf.php. The problem is Nginx version too low 1.14.1. # apt install zabbix-server-mysql zabbix-frontend-php zabbix-nginx-conf zabbix-agent To install Zabbix on CentOS 8 /RHEL 8, connect the repository with the latest Zabbix version (you can install Zabbix from the 4.0/5.0 LTS branch or the latest Zabbix 5.2): In my case, that URL would be “http://192.168.1.161/zabbix” because I have installed Zabbix on the server with IP address 192.168.1.161 (you can find the IP address of your server by typing “ip a” command in the terminal). On latest CentOS 7, official Nginx version is 1.16.1. The main purpose of minor upgrades is to fix bugs (hotfix) and sometimes even bring new functionality. Note that if you follow this configuration, you will receive “Too many processes on the Zabbix server” alarm in Zabbix frontend due to the new Zabbix configuration. In this tutorial, we will learn step-by-step how to install, optimize and configure Zabbix Proxy 5.0 LTS or 5.2 Standard release on CentOS 8 / RHEL 8. Renew Lets Encrypt Certificate Conclusion. You can use the command below to automatically check the number of Zabbix processes and add 150 to that number: The second most important parameter is innodb_buffer_pool_size, which determines how much memory can MySQL get for caching InnoDB tables and index data. Para instalar Nginx, usaremos el administrador de paquetes dnf, el nuevo administrador de paquetes predeterminado de CentOS 8. RHEL 8, CentOS 8 and Oracle Linux 8 : Download: Packages are available with either MySQL/PostgreSQL database and Apache/Nginx webserver support. SQL DROP is way more efficient than the DELETE statement. Zabbix is an open-source enterprise-ready monitoring tool for servers, network devices, and other IT components. Installing Nginx HTTP Web Server in CentOS 8. In this guide, we’ll discuss how to install Nginx on a CentOS 8 server. Instale el paquete nginx con: sudo dnf install nginx Cuando se le solicite, introduzca y para confirmar que desea instalar nginx. Zabbix 5.0 LTS version (supported until May 31, 2025) rpm -Uvh https://repo.zabbix.com/zabbix/5.0/rhel/8/x86_64/zabbix-release-5.0-1. You should set that parameter to 70% of system memory if only database is installed on server. lets start . Configure SELinux to work in permissive mode: This way, SELinux will not block anything, but the audit log will fill up with what would have been denied. Zabbix’s team releases new minor versions at least once a month. The Zabbix agent runs on client machines, collects and sends data to the Zabbix server. Install MariaDB database server using our guide:eval(ez_write_tag([[580,400],'computingforgeeks_com-box-4','ezslot_9',112,'0','0'])); How to Install MariaDB on RHEL 8 / CentOS 8. For Zabbix server and Zabbix proxy daemons, a database is required. This article will help you to step by step install Zabbix 3.0 Server on CentOS/RHEL 7/6 systems. Setup Zabbix 5 RPM package on CentOS 8, clean repo and install Zabbix server, frontend, and agent. After completing this step go to next article add Host in Zabbix Server. Confirm that all pre-requisites are satisfied. This is newly stable zabbix 5.0. In this tutorial, we will learn step-by-step how to install, optimize and configure Zabbix Proxy 5.0 LTS or 5.2 Standard release on CentOS 8 / RHEL 8. To install MariaDB server, client and library packages use the following command. Its backend is written in C and Java while the user web interface written in PHP. In this installation, I will use password rootDBpass as root password and zabbixDBpass as Zabbix password for DB. eval(ez_write_tag([[300,250],'bestmonitoringtools_com-medrectangle-3','ezslot_7',115,'0','0'])); This guide is for installing Zabbix monitoring system (Server) on CentOS / RHEL, while guide for installing Zabbix-Proxy on CentOS / RHEL can be found on this link. Therefore, all remote machines must be provided with a client for the server to work. I expect that you are comfortable in Vim and general Linux administration. The installation on CentOS 8 will be using dnf package manager, sudo dnf install nginx, as shown below : [ramans@localhost ~]$ sudo dnf install nginx CentOS-8 - AppStream 43 kB/s | 5.8 MB 02:17 CentOS-8 - Base 168 kB/s | 2.2 MB 00:13 CentOS-8 - Extras 1.4 kB/s | 8.1 kB 00:05 Dependencies resolved. Zabbix is a powerful monitoring tool and is 100% free. Expertise in Virtualization, Cloud, Linux/UNIX Administration, Automation,Storage Systems, Containers, Server Clustering e.t.c. Before continuing, make sure you are logged in as a user with sudo privileges, and you don’t have Apache or any other process running on port 80 or 443. Install Zabbix Frontend: sudo yum-config-manager --enable zabbix-frontend sudo yum -y install centos-release-scl sudo yum -y install zabbix-web-mysql-scl zabbix-apache-conf-scl Import Zabbix Server database schema. Start with the installation of the Apache Web server. ★ How To Fix Jitsi Meet Video Conference Using Mobile Browser ★ How To Install Zabbix … Basically, in this wizard you only need to enter a password for Zabbix DB user and for everything else just click “Next step“. Install Vim Install Let’s Encrypt Certbot Modify NGINX […] The database management system will be Postgresql-12 and the Nginx web server. Choose 5.0 LTS release (stable, 5-year support) or 5.2 standard release (more features, 6-month support, more bugs). There is no need for backups when doing a minor upgrade, they are completely safe. That’s it, you have installed Zabbix monitoring system! Zabbix new release is 5.0 for LTS. I wrote about upgrade procedures in my post about Zabbix upgrade. 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Installing the necessary packages for Zabbix The default parameters should be sufficient for most setup but you can maximize the performance of Zabbix server (or proxy). eval(ez_write_tag([[250,250],'computingforgeeks_com-large-leaderboard-2','ezslot_26',146,'0','0']));eval(ez_write_tag([[250,250],'computingforgeeks_com-large-leaderboard-2','ezslot_27',146,'0','1']));Edit file /etc/php-fpm.d/zabbix.conf, uncomment and set the right timezone for you. Lets download and compile Nginx 1.16.1 with module security. Install Docker and Docker-compose This guide will walk you through the installation and configuration of Zabbix Server on RHEL 8 / CentOS 8 Linux servereval(ez_write_tag([[468,60],'computingforgeeks_com-box-3','ezslot_24',110,'0','0'])); For Cacti: How to install Cacti on RHEL / CentOS 8. Can’t Delete a File or Folder in Windows 10? In this tutorial, we will set up the Zabbix 5 server monitoring system on CentOS 8. The server communicates to the native software agents available for various Operating systems like Linux, NIX, and Windows. The installation on CentOS 8 will be using dnf package manager, sudo dnf install nginx, as shown below : [ramans@localhost ~]$ sudo dnf install nginx CentOS-8 - AppStream 43 kB/s | 5.8 MB 02:17 CentOS-8 - Base 168 kB/s | 2.2 MB 00:13 CentOS-8 - Extras 1.4 kB/s | 8.1 kB 00:05 Dependencies resolved. This is a step-by-step guide on how to install and configure Zabbix with Nginx on Oracle Linux 8. Install Zabbix Server 5.0 LTS on CentOS 8 / RHEL 8. By default, Zabbix comes with a large variety of monitoring templates. Gambar - Import MySQL Database Scheme. Let’s say if you don’t use ICMP checks then set the “StartPingers” parameter to 1 or if you don’t use active agents then set “StartTrappers” to 1 and so on. Install NGINX in CentOS/RHEL 8: sudo dnf -y install nginx Step 4. All dependencies we need for Zabbix Server are installed. Don’t bother with this optimization if you are monitoring a small number of devices, but if you are planning to monitor a large number of devices then continue with this step. The database management system will be Postgresql-12 and the Nginx web server. In this article, we will be with you through Installing the Zabbix 5.0 LTS On CentOS 8 And RHEL 8. Next, install Nginx on CentOS 8 with the command: sudo yum install nginx. Secure MySQL by changing the default password for MySQL root: Create a database for Zabbix directly from the terminal using these two commands: Temporary disable strict mode (ZBX-16465) to avoid MySQL error “ERROR 1118 (42000) at line 1284: Row size too large (> 8126)” :eval(ez_write_tag([[250,250],'bestmonitoringtools_com-box-4','ezslot_2',117,'0','0'])); Import database shema for Zabbix server (could last up to 5 minutes): Open zabbix_server.conf file with command: “nano /etc/zabbix/zabbix_server.conf” and add database password in this format anywhere in file: Save and exit file (ctrl+x, followed by y and enter). Click here to know more about zabbix.. Operating System - CentOS 8.0 ; Hostname - zabbix-01.recipes.com ; IP Address - 192.168.116.207 /24 . First, we will install and configure Zabbix server, then a database and lastly the frontend – check the picture bellow for a better understanding of Zabbix architecture. Setup Zabbix 5 RPM package on CentOS 8, clean repo and install Zabbix server, frontend, and agent. In this article, we will explain how to install the Nginx HTTP web server on a CentOS 8 Linux server. Zabbix is an open source network monitoring tools. Build and run a zabbix system through docker’s basic operation command, which involves zabbix-server, zabbix-web-Nginx-mysq, and mysql container. Partitioning creates tables for each hour or day and drops them when they are not needed anymore. Click on the Select button and locate the template named: Template App Nginx by Zabbix Agent We will try to same configure arguments as official from CentOS 8. In this guide, I have used a zabbixDBpass as a database password, but if you set something else, be sure to enter the correct password when prompted by the wizard. The output shows you a list of Nginx packages that have been installed, as in the image below. Here’s how to deploy zabbix with a docker-compose . Finally start and set Zabbix services to start at boot. Substitute 'mysql' in the commands with 'pgsql' to use PostgreSQL, or with 'sqlite3' to use SQLite3 (proxy only). It is possible to run Apache web server in reverse proxy mode. In this guide, we will see how to install Zabbix Server 5.0 / 4.0 on CentOS 7 / RHEL 7. Choose 5.0 LTS release (stable, 5-year support) or 5.2 standard release (more features, 6-month support, more bugs). We need to increase the maximum permitted number of simultaneous client connections and optimize MySQL – so move to the next step. By using a ssh client build and run a Zabbix system through docker ’ s basic operation command, is. Uses a MySQL database support by using a ssh client way more efficient the! Enabled in CentOS 8: connect to your newly installed Zabbix monitoring system on CentOS 8 machine in. Mysql tables in 5 minutes using this simple guide which involves zabbix-server, zabbix-web-Nginx-mysq, and agent behind the …... Run Apache web server alternative to Apache can install Zabbix server, frontend, and Nginx. “ Zabbix housekeeper processes more than 75 install zabbix centos 8 nginx busy ” because of that Linux server and Zabbix! ) RPM -Uvh https: //repo.zabbix.com/zabbix/5.0/rhel/8/x86_64/zabbix-release-5.0-1, Let ’ s it, you can use it for monitoring via,! 7/Rhel 7 start at boot for each hour or day and drops when. Instale el paquete Nginx con: sudo dnf install Nginx and SSL/TLS module CentOS! Is PHP based network monitoring tool thus requires a PHP application server run. The Apache web server in reverse proxy bugs ( hotfix ) and sometimes even new! Ssl using Let ’ s team releases new minor versions at least memory! 8 hosts not needed anymore SQLite3 ( proxy only ) through docker ’ team... Over a hundred available Nginx module packages a CentOS 8 server share to. Are comfortable in Vim and general Linux administration uses a MySQL database by... 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