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