pfSense Site-to-Site IPsec VPN: Connecting Two Networks Securely
A site-to-site IPsec VPN lets two separate networks — a branch office and headquarters, or two data centers — ...
Proxmox Backup Server: Deduplicated, Incremental VM Backups Explained
The default vzdump backup built into Proxmox VE works, but it re-copies the full VM disk every single run ...
Setting Up a Proxmox VE High-Availability Cluster with Ceph Storage
A single Proxmox node is a single point of failure: if the hardware dies, every VM on it goes ...
Reverse DNS (PTR) Records and Email Deliverability: Setup and Troubleshooting
SPF, DKIM and DMARC all live in your domain's forward DNS zone, which you control directly. PTR records don't ...
pfSense Firewall Setup Guide: Interfaces, Rules and NAT Port Forwarding
pfSense turns an ordinary x86 box into an enterprise-grade firewall and router, free and open source. It gives you ...
How to Install Proxmox VE and Create Your First VM and LXC Container
Proxmox VE is an open-source virtualization platform that runs both full KVM virtual machines and lightweight LXC containers from ...
KVM vs OpenVZ vs LXC vs Docker: What Virtualization Your VPS Really Runs
Two VPS plans can advertise the same “4 vCPU, 8 GB RAM, 100 GB NVMe” and behave completely differently ...
How to Install and Secure Plesk Obsidian on AlmaLinux and Ubuntu
Plesk Obsidian is the most practical control panel choice when you need one interface across Linux and Windows, a ...
Fix “508 Resource Limit Is Reached” in cPanel: CloudLinux LVE Limits Explained
Few errors frustrate site owners more than “508 Resource Limit Is Reached”. The site was fine a minute ago, ...
Redis vs Memcached: Choosing the Right Object Cache
When a database query or a rendered page can be reused, recomputing it from scratch on every request is ...