Configuring Docker Containers with Static IPs on CentOS 7 Using Pipework and a Linux Bridge

To assign a static IP address to a Docker container on CentOS 7 using pipework, begin by setting up a Linux bridge. First, modify the physical interface configuration to attach it to a bridge. Edit /etc/sysconfig/network-scripts/ifcfg-ens33: TYPE=Ethernet BOOTPROTO=none DEFROUTE=yes IPV4_FAILURE_FATAL=no IPV6INIT=yes IPV6_AUTOCONF=yes IPV6_DEFR ...

Posted on Wed, 04 Nov 2026 16:44:28 +0000 by shumway

Deploying an Apache Hadoop 2.10 Fully Distributed Cluster on CentOS 7

Cluster Nodes and Prerequisites A fully distributed Hadoop 2.10 setup requires at least four CentOS 7 nodes: one NameNode and three DataNodes. The following table outlines the planned topology using VMware virtual machines. IP Address Hostname Role 192.168.30.141 s141 NameNode (master) 192.168.30.142 s142 DataNode 192.168.30.143 s143 ...

Posted on Fri, 30 Oct 2026 16:12:51 +0000 by laanes

Automated CentOS 7 Deployment with UEFI PXE and Kickstart

Security and Package Manager Setup Disable firewalld and SELinux enforcement to avoid network blocks during provisioning. Configure the Alibaba Cloud mirror for faster package retrieval. systemctl disable --now firewalld setenforce 0 cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup curl -o /etc/yum.repos.d/CentOS-B ...

Posted on Fri, 30 Oct 2026 16:09:27 +0000 by el_quijote

Configuring the Teaching Management System on CentOS 7

For testing purposes only. Project repository: Link (Extraction code: 0000) Local Environment Setup (Options 1, 2, 3 can be adjusted per requirement) Modify the port number in rest_api/restapi-teach/backend/project/cherrypy_startup.py (any available port). To enable session-based authentication before login, change False to True in rest_api ...

Posted on Sat, 17 Oct 2026 16:12:56 +0000 by juminoz

Configuring Firewall with Firewalld on CentOS 7

Firewalld Service Management CentOS 7 utilizes systemctl as the primary service management tool, combining functionality from previous service and chkconfig commands. # Check firewall status using legacy service command service firewalld status # Check firewall status using systemctl systemctl status firewalld Firewalld Service Control Comma ...

Posted on Sat, 03 Oct 2026 16:57:42 +0000 by richei

Configuring Laravel 8 on CentOS for Remote SQL Server 2016 Connectivity

To establish a connection between a Laravel 8 application hosted on a CentOS 7.9 server and a remote Microsoft SQL Server 2016 database, specific PHP extensions and ODBC drivers must be configured. The following steps outline the necessary setup for PHP 8.0 anvironments. Installing System Dependencies Begin by installing the required Unix ODBC ...

Posted on Sun, 27 Sep 2026 16:48:28 +0000 by Bertholt

MySQL Installation, Configuration, and Uninstallation on CentOS 7

MySQL Data base Installation To install MySQL on a CentOS 7 system, follow these steps: [root@server ~]# wget https://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm [root@server ~]# yum -y install mysql57-community-release-el7-9.noarch.rpm [root@server ~]# cd /etc/yum.repos.d/ [root@server ~]# yum -y install mysql-server Starti ...

Posted on Thu, 17 Sep 2026 16:27:38 +0000 by ctimmer

Installing and Managing ZFS File Systems on CentOS 7

Creating Storage Pools The zpool create command allows creating mirrored configurations using multiple drives: zpool create [pool_name] mirror [device1] [device2] ... Multiple mirror groups can be established by repeating the mirror keyword: [root@server ~]# zpool create -f datapool mirror sdc sdd mirror sde sdf [root@server ~]# zpool status p ...

Posted on Tue, 04 Aug 2026 16:49:48 +0000 by Litninfingers63

ClickHouse Cluster Deployment on CentOS 7

Cluster Configuration Overview Hostname IP Address Installed Components Service Port centf8118.sharding1.db 192.168.81.18 clickhouse-server, clickhouse-client 9000 centf8119.sharding2.db 192.168.81.19 clickhouse-server, clickhouse-client 9000 centf8120.sharding3.db 192.168.81.20 clickhouse-server, clickhouse-client 9000 Cluster De ...

Posted on Sun, 02 Aug 2026 16:54:22 +0000 by vimukthi

Deploying a Sharded RocketMQ Cluster on CentOS 7

This guide walks through building a 3-master–3-slave RocketMQ cluster on CentOS 7, including NameServer setup, broker configuration, and the optional web console. Prerequisites JDK 8 or newer Maven 3.2+ Git Note: RocketMQ expects /usr/local/jdk by default. If your JDK lives elsewhere, update the startup scripts. Install RocketMQ Download wg ...

Posted on Mon, 27 Jul 2026 16:18:35 +0000 by andremta