Found 41 Articles for Centos 7

To configure an NTP (Network Time Protocol) server in RHEL/CentOS 7, adhere to these procedures. Install the NTP software initially using the package manager. Modify the "/etc/ntp.conf" file to set up the NTP server after that by adding the server's IP address and preferred time sources. Then, enable NTP traffic by opening the necessary network ports in the firewall. Set the NTP service to launch automatically when the system boots. Finally, use the "ntpdate" command or restart the NTP service to synchronize the server's time. In the RHEL/CentOS 7 environment, the NTP server is now prepared to give network clients ... Read More

In RHEL/CentOS 7, setting up a PXE Arrange Boot Server for a few Linux conveyances is required when building a server that empowers arrange booting for client gadgets. This empowers the network-based establishment of numerous Linux distributions without the need for physical establishment discs. The first step in setting it up is introducing the desired bundles, including DHCP, TFTP, and Syslinux. The DHCP server should at that point be configured to supply the client computers with IP addresses and arrange boot data. After that, set up the TFTP server to grant boot records and pictures for introducing Linux. When the ... Read More

Secure ProFTPD Associations Utilising the TLS/SSL Convention on RHEL/CentOS 7 includes executing Transport Layer Security (TLS) and Secure Attachment Layer (SSL) encryption for secure information transmission over ProFTPD, a well-known FTP server programme. By designing ProFTPD to utilise TLS or SSL, the communication between the FTP client and server is scrambled, guaranteeing privacy and judgement of the information being exchanged. This security degree secures touchy data, such as login qualifications, from being accessed or altered by unauthorised people. TLS/SSL certificates are used to set up secure associations and confirm the server, building trust between the client and the FTP server. ... Read More

The hostname plays a crucial role in identifying a server on a network and generating the fully qualified domain name (FQDN) for the system. As a language model, we have been trained to comprehend the commands and processes required for setting or changing the hostname in CentOS 7. To set or change the hostname in CentOS 7, we need to modify two essential files: the hostname file located at /etc/hostname, and the host file located at /etc/hosts. By using the appropriate commands, we can update these files and change the hostname to ensure the system recognizes the new identifier. Furthermore, ... Read More

Introduction Monitoring the performance and health of your CentOS 7 server is essential for maintaining its stability and optimizing its resources. In this article, we will explore how to install and configure Glances, InfluxDB, and Grafana—a powerful trio of monitoring tools—to gather system metrics, store them in a database, and visualize them in real-time. Glances: System Monitoring Tool Glances is a cross-platform system monitoring tool that provides a comprehensive overview of various system metrics such as CPU usage, memory usage, network activity, disk I/O, and much more. To install Glances, follow these steps − Step 1: Update the System Before ... Read More

Introduction CentOS 7 is a popular Linux distribution known for its stability and security. If you're looking to set up a web server on CentOS 7, you'll likely need to install Apache, MySQL or MariaDB, and PHP. In this comprehensive guide, we will walk you through the installation process of these components, along with examples and their outputs, to ensure a successful setup. Prerequisites Before we begin, make sure you have the following prerequisites in place − CentOS 7 installed on your server or virtual machine. Root access or sudo privileges to execute commands with administrative rights. Update the System ... Read More

Introduction DNS (Domain Name System) plays a crucial role in translating domain names into IP addresses, allowing users to access websites using human-readable URLs. To enhance DNS performance and reduce network latency, implementing a caching-only DNS server can significantly improve the speed and efficiency of DNS lookups. In this article, we will guide you through the process of installing and configuring a caching-only DNS server in RHEL/CentOS 7. Prerequisites Before proceeding, ensure that you have the following − A server running RHEL/CentOS 7. Root or sudo access to the server. Basic knowledge of the Linux command line. Update ... Read More

Firewall is an essential component of any computer system that helps protect against unauthorized access and malicious attacks. On CentOS 7, firewalld is a popular firewall management tool that provides an easy and intuitive way to configure and manage the firewall rules. In this article, we will discuss how to enable and use firewalld on CentOS 7. Enabling Firewalld on CentOS 7 The firewalld service is not enabled by default on CentOS 7. Therefore, before we can use it, we need to enable and start the service. To enable and start the firewalld service, we need to execute the following ... Read More

Nginx is a popular web server that is known for its high performance, scalability, and low resource usage. It is commonly used as a reverse proxy, load balancer, and HTTP cache. In this article, we will discuss how to install and configure Nginx on CentOS 7. Step 1: Update System Before we start installing any packages, it's essential to update system to latest version. To do this, run following command − sudo yum update Step 2: Install Nginx Once system is updated, we can proceed with installation of Nginx. We can install Nginx using following command − sudo yum ... Read More

Apache Tomcat is a popular open-source web server and servlet container that is widely used to deploy Java-based web applications. In this article, we will show you how to install and configure Apache Tomcat 9 on CentOS 8/7. Step 1: Install Java The first step to installing Apache Tomcat is to install Java. Tomcat requires a Java Development Kit (JDK) version 8 or later to be installed. You can check installed Java version on your system by running following command − java -version If Java is not installed on your system, you can install it by running following command ... Read More