Installing and Configuring vsftpd FTP Server on CentOS 7
Overview
vsftpd (Very Secure FTP Daemon) is a lightweight, secure FTP server software for UNIX-like operating systems including Linux, BSD, Solaris, and HP-UNIX. Its free and open-source, offering excellent security features, bandwidth control, virtual user support, IPv6 compatibility, and high transfer rates.
Key Features
Runs with reduced sy ...
Posted on Thu, 07 May 2026 22:00:16 +0000 by RHolm
User Account Management in CentOS 7
Key Configuration Files
User and group information in Linux is stored in specific text files within the /etc directory. Understanding these files is crucial for system administration.
/etc/passwd: Contains user account information. Each line represents a user with fields separated by colons: username:password:UID:GID:comment:home_directory:log ...
Posted on Thu, 07 May 2026 20:00:22 +0000 by davestevens_uk
Installing Windows Fonts on CentOS 7
On CentOS 7, attempting to list available fonts may result in an "invalid command" error, indicating that neither font management tools nor Chinese fonts are present. The following steps detail how to install necessary font libraries and Chinese fonts on CentOS 7.
Install Font Management Libray
Since CentOS 4.x, fontconfig has been us ...
Posted on Thu, 07 May 2026 17:02:36 +0000 by antonello
Deploying Multiple ZooKeeper Instances on a Single Host
Environment Setup
Target system: CentOS 7.3 (sinngle machine)
ZooKeeper version: 3.5.2
Installation path: /opt/zk
Instance ports: 2181, 2182, 2183
Config files: /opt/zk/conf/node1.cfg through node3.cfg
Install rqeuired Java runtime:
yum install java-1.8.0-openjdk -y
Installation Steps
Download the distribution package:
wget https://archive.apa ...
Posted on Thu, 07 May 2026 17:00:49 +0000 by HowdeeDoodee
Building a Custom CentOS 6 LNP Image with Docker
Environment Setup
A single CentOS 6.5 virtual machine is required, along with febootstrap and docker intsalled.
Installing febootstrap
yum install -y yum-priorities && rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm && rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
yum -y install febootstrap ...
Posted on Thu, 07 May 2026 16:29:22 +0000 by mk_silence
Building a Custom CentOS Image with Dockerfile: Commands, Best Practices, and Troubleshooting
Dockerfile is a declarative text file that defines the steps required to assemble a Docker image. It enables reproducible, version-controlled, and automated image builds—essential for modern containerized application delivery.
Core Build Workflow
Author a Dockerfile with instructions describing environment setup, dependencies, and runtime conf ...
Posted on Thu, 07 May 2026 07:06:50 +0000 by billkom