Viewing articles tagged 'Sysadmin'

Advanced Log Analysis: Investigating System Anomalies | Hovixa

Investigating System Anomalies using journalctl and /var/log/auth.log When a Hovixa VPS behaves...
Deploying Docker & Docker Compose: AlmaLinux/CentOS Guide | Hovixa

Deploying Docker and Docker Compose on CentOS/AlmaLinux Environments On RHEL-based distributions...
Secure VPS with Ed25519 SSH Keys: Disable Passwords | Hovixa

Selecting Your Linux Distribution and Hardening SSH Access Choosing the right operating system...
Change SSH Port & Configure Fail2Ban: VPS Hardening | Hovixa

Modifying the Default SSH Port and Configuring Fail2Ban Jail Rules Security through obscurity is...
Manual WordPress Migration: rsync & mysqldump Guide | Hovixa

Technical documentation on migrating WordPress sites between servers using rsync and mysqldump....
Fix "Error Establishing a Database Connection": Advanced Debugging | Hovixa

Technical troubleshooting guide for WordPress database connection errors. Resolve credential...
UFW Firewall Deployment: Secure Web Server Baseline | Hovixa

UFW (Uncomplicated Firewall) Baseline Deployment for Web Servers The Uncomplicated Firewall...
VPS Power Management: ACPI Shutdown vs. Force Stop | Hovixa

Technical guide on VPS power controls within SolusVM 2. Understand the difference between...
Clean OS Reinstallation & Template Deployment | Hovixa

Technical guide on performing a clean OS reinstallation via SolusVM 2. Learn how to redeploy...
Fix WordPress White Screen of Death (WSOD): PHP Debugging | Hovixa

Technical guide on diagnosing the WordPress White Screen of Death. Learn to use WP_DEBUG,...
LEMP Stack Performance Tuning: Nginx, MySQL & PHP-FPM | Hovixa

Compiling and Tuning a LEMP Stack (Linux, Nginx, MySQL, PHP-FPM) A standard LEMP installation...
LAMP Stack Performance Tuning: Apache, MySQL & PHP | Hovixa

Compiling and Tuning a LAMP Stack (Linux, Apache, MySQL, PHP) While the LEMP stack is popular...
Mastering Systemctl: Managing Linux Daemon States | Hovixa

Managing Daemon States with systemctl On modern Linux distributions (Ubuntu, Debian, AlmaLinux,...
Mastering WordPress Management via WP-CLI | Hovixa

Advanced guide for managing WordPress core, themes, and plugins strictly via the command line...
Hardening WordPress Security: Disable XML-RPC & File Editing | Hovixa

Technical security guide for Hovixa VPS users. Learn how to disable XML-RPC to prevent...
Hardening wp-config.php: Moving Credentials Outside Web Root | Hovixa

Advanced WordPress security guide for Hovixa VPS users. Learn how to move your wp-config.php file...
Advanced Process Monitoring: htop & Resource Isolation | Hovixa

Process Monitoring and Resource Isolation with htop and top Efficiently managing a Hovixa VPS...
Replace WP-Cron with System Cron: Reliability Guide | Hovixa

Technical guide on disabling the virtual WP-Cron and replacing it with a high-reliability Linux...
Diagnosing Disk I/O Bottlenecks: iotop & iostat Guide | Hovixa

Diagnosing I/O Bottlenecks and Wait Times with iotop and iostat On a high-performance Hovixa...
Reset WordPress Admin Password via MySQL | Hovixa

Technical guide on resetting a lost WordPress administrator password using direct MySQL/MariaDB...
Change WordPress Site URL via MySQL (wp_options) | Hovixa

Technical guide on modifying the WordPress Site URL and Home URL directly in the database....
Manage VPS Snapshots: Point-in-Time Recovery | Hovixa

Technical guide on creating and managing VPS snapshots in SolusVM 2. Learn how to take...
Resizing Linux Partitions: fdisk, resize2fs & xfs_growfs | Hovixa

Disk Management: Resizing ext4/XFS Partitions using fdisk and resize2fs When you upgrade your...
Deploying Docker & Docker Compose: Debian/Ubuntu Guide | Hovixa

Deploying Docker and Docker Compose on Debian/Ubuntu Environments Containerization allows you to...
Fix Mixed Content: Database Search & Replace Guide | Hovixa

Technical guide on resolving HTTPS mixed content warnings in WordPress. Learn to use WP-CLI to...
Restore VPS from Snapshot: Instant Rollback Guide | Hovixa

Step-by-step technical guide on restoring your Hovixa VPS from an existing snapshot. Learn how to...
Advanced Linux Permissions: chmod, chown, and ACLs | Hovixa

Advanced Linux Permissions: chmod, chown, and Access Control Lists (ACLs) Standard Linux...
Configuring SMTP for Reliable VPS Email Delivery | Hovixa

Technical guide on configuring SMTP for transactional emails on a Hovixa VPS. Learn why PHP...
Clean Compromised WordPress: Malicious Payload Detection | Hovixa

Technical guide on identifying and removing malicious payloads from a compromised WordPress site....
Network Path Troubleshooting: Ping, Traceroute & MTR | Hovixa

Network Path Troubleshooting using ping, traceroute, and mtr Network performance on a Hovixa VPS...
Fix High VPS Load: Identify Heavy & Conflicting WordPress Plugins | Hovixa

Technical guide on diagnosing high CPU and memory usage caused by WordPress plugin conflicts....
Manual DNS Resolution: Mastering dig & nslookup | Hovixa

Executing Manual DNS Query Resolution using dig and nslookup When you update a domain's DNS...
Deploy WordPress via SSH: A Technical WP-CLI Guide | Hovixa

Step-by-step documentation for power users on deploying WordPress manually using SSH and WP-CLI....
Mastering rsync: Incremental Backups & Remote Transfers | Hovixa

Utilizing rsync for Incremental File Transfers and Remote Backups For sysadmins, rsync (Remote...
Advanced Data Parsing: Mastering find, grep, and awk | Hovixa

Parsing and Manipulating Filesystem Data with find, grep, and awk Efficiently managing a Hovixa...
Fixing VPS Kernel Panics & Boot Failures via VNC | Hovixa

Technical troubleshooting guide for Hovixa VPS boot failures. Learn to use the SolusVM 2 VNC...
Hardening WordPress with CSP: Content Security Policy Guide | Hovixa

Technical guide on implementing a Content Security Policy (CSP) for WordPress. Learn to mitigate...
Automated VPS Backups: Mastering Bash Scripts & Cron | Hovixa

Writing Automated Backup Shell Scripts Utilizing Bash and Cron A manual backup is a single point...
Bypass Cache for WooCommerce: Fix Cart & Checkout Issues | Hovixa

Technical guide on configuring Nginx and WordPress to bypass caching for dynamic WooCommerce...
Nginx Reverse Proxy: Node.js & Python App Deployment | Hovixa

Configuring Nginx as a Reverse Proxy for Node.js and Python Applications Applications built with...
Standardize WordPress Permissions: 755/644 SSH Guide | Hovixa

Technical guide on standardizing Linux file and directory permissions for WordPress. Learn to use...
Hardening Shared Memory: Securing /run/shm on Linux | Hovixa

Hardening Shared Memory (/run/shm) Against Binary Execution On a Linux system, shared memory...
Optimize WordPress Database: Revisions & Autoload Size | Hovixa

Technical guide on reducing WordPress database bloat. Learn to limit post revisions and optimize...
Network Hardening: Mitigating SYN Floods & sysctl.conf Tuning | Hovixa

Mitigating SYN Floods and Tuning sysctl.conf for High Network Throughput In a high-traffic...
WordPress Multisite Architecture: Subdirectories vs. Subdomains | Hovixa

Technical comparison of WordPress Multisite structures. Learn the architectural differences, DNS...
Manage Swap Space on Linux: Create, Enable & Resize | Hovixa

Managing Swap Space: Creating, Enabling, and Resizing Swap Files On a Hovixa VPS, Swap Space...
Recover Deleted Files with lsof: Process File Descriptor Guide | Hovixa

Recovering Deleted Files using lsof for Active Process File Descriptors Accidentally deleting a...
Mastering Kernel & Package Upgrades: apt vs. dnf | Hovixa

Executing Kernel and Package Upgrades via apt/dnf Package Managers Maintaining a secure and...
User Management & Sudo Security: Hardening Linux Access | Hovixa

Managing User Accounts, Groups, and Restricted Sudo Privileges Securing a Hovixa VPS begins with...