Stay informed and inspired with our latest tutorials.
Learn how to build a Network RAID 1 High-Availability cluster on bare metal using DRBD and Keepalived for real-time storage replication and IP failover.
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Learn to bypass hypervisor network bottlenecks on dedicated servers using SR-IOV. Configure Proxmox and KVM to pass Virtual Functions directly to VMs.
Boost database IOPS on dedicated servers with OpenZFS. Combine SATA drives with an NVMe SLOG and L2ARC for maximum MySQL performance.
Learn how to automate bare-metal disaster recovery on dedicated servers using ReaR. Generate a bootable ISO to restore your entire OS via IPMI in minutes.
Build an enterprise-grade DDoS scrubbing gateway on a dedicated server using XDP, eBPF, and FRRouting to drop malicious packets at wire speed.
Follow this step-by-step guide to safely upgrade your cPanel or bare-metal server in-place from CentOS 7 to AlmaLinux using the ELevate project.
Learn how to perform a safe, in-place upgrade from AlmaLinux 8 to AlmaLinux 9 using the ELevate project and Leapp utility. Step-by-step tutorial with inhibitor fixes.
Learn how to utilize your dedicated server's public IP to create a high-speed WireGuard VPN gateway, allowing you to forward ports to your local home lab trapped behind CGNAT.
Step-by-step instructions on how to securely flash your motherboard BIOS and BMC/IPMI firmware remotely using ipmitool
Protect your dedicated server backups from being encrypted or deleted by compromised root accounts by utilizing the Linux chattr command to create append-only, immutable backup directories.
Learn how to bypass modern browser restrictions using IcedTea-Web, Dockerized Java environments, or native security tweaks to regain KVM access.
Learn how to identify incoming UDP floods (NTP, DNS, Memcached) and drop malicious packets at the kernel level using nftables.
Learn how to identify rogue processes causing high I/O wait and benchmark your SATA/NVMe drive health using iotop, iostat, and fio.
This step-by-step guide covers IP forwarding, bridge configuration, and assigning additional public /29 IP subnets to your virtual machines safely.
Discover why Docker bypasses UFW firewall rules on Ubuntu and Debian, exposing your containers to the public internet. Learn the definitive step-by-step fix using the DOCKER-USER chain.
Learn how to rebuild a degraded hardware RAID array using StorCLI and MegaCLI. This step-by-step Linux tutorial covers silencing the alarm, identifying failed drives, and monitoring the rebuild process.
This step-by-step tutorial covers using IPMI, chroot, and rebuilding the GRUB bootloader for AlmaLinux and Ubuntu.
Learn how to diagnose the Linux OOM Killer, tweak MySQL/MariaDB RAM usage, and configure swap space on your dedicated server.
Learn how to diagnose NVMe bus errors in syslog, check drive health, and apply the pci=noaer or pcie_aspm=off GRUB fix.
Learn how to use IPMI to bypass the network, flush Firewalld/UFW rules, and regain SSH access safely.
Learn step-by-step how to fix AAAA record conflicts / clear CAA blocks, and resolve NXDOMAIN issues to renew your cPanel SSL certificates.
Learn how to troubleshoot and fix common web server startup errors like config syntax issues, port conflicts, and permission errors on Apache and Nginx.
Step-by-step tutorial on configuring a BGP session with EPY Host. Learn how to announce your own IP prefixes and ASN for full routing control and network redundancy.
Learn how to manage and migrate Plesk servers efficiently with EPY HOST. This step-by-step guide covers server monitoring, security best practices, performance optimization, and smooth migration.
Learn how to fix the WHM error 'API failure: (XID xxx) The system failed to lock the account'. Step-by-step guide for all user levels, including command-line fixes and prevention tips.
