A Practical Linux Tcpdump Workflow for Packet Capture
Capture Linux network evidence with tcpdump by choosing the right interface, writing precise filters, saving PCAPs, and validating results with system tools.
Tag: Linux tutorial
WireGuard Linux Server Setup: A Reliable Step-by-Step
Set up WireGuard on a Linux server with clear steps for keys, routing, firewall rules, NAT, split tunnels, handshakes, and full-tunnel DNS safely.
How to Load HPC Modules and Verify Your Shell
Use explicit module versions and verify PATH changes with module list and which, while this guide explains hidden modules, conflicts, batch jobs, and modprobe.
Set Up Arch Linux on Tablets: Input Stack Guide
Configure touchscreen, stylus, and rotation on Arch Linux tablets by diagnosing your kernel input pipeline with libinput and udev, not guessing at settings.
Run Linux on iPad Pro: UTM VM Beats Native Boot
UTM virtualizes ARM64 Linux on iPad Pro M1 and newer with real performance. Native boot is blocked by Apple’s signed bootchain; this is the working path today.
Run Linux on Pixelbook Go: Crostini vs Native Mode
Crostini gives you Debian in a container; native Linux requires developer mode and voids warranty. Learn which path fits your workflow and what actually works.
Rmdir vs Rm: Safe Linux Deletion Without Guesswork
The safer choice depends on what you are deleting: compare rmdir, rm, rm -r, and rm -rf, plus checks to avoid accidental Linux data loss before you delete.
Fix Broken Dependencies in Dnf: Read the Error First
Broken dnf dependencies usually stem from stale cache or mismatched repos, not missing packages. Learn to trace the actual problem with repoquery and logs.
A Practical Linux Log-Checking Workflow That Works
Start with the current boot, then narrow failures by service, time, kernel, app, or container using journalctl, dmesg, and /var/log without drowning in noise.
Fix Permission Denied in Linux: Diagnose Before Chmod
Permission denied errors stem from specific syscall failures. Learn to read ls output, use chmod and chown correctly, and diagnose issues chmod can’t fix.
Lsmod vs Modprobe: List Loaded Kernel Modules
lsmod lists what the kernel loaded right now; modprobe loads modules and resolves dependencies. Learn which tool does what and why modprobe list doesn’t exist.
Tracepath on Debian: No-Root MTU Discovery Guide
tracepath finds broken routes and shrinking packet sizes without root access on Debian. Install from iputils-tracepath, run in seconds, skip the sudo hassle.
Why Apt Says Bpftool Is a Virtual Package (and the Fix)
Two packages, not one: linux-tools-common plus linux-tools-$(uname -r) gets bpftool working on Ubuntu, with checks for virtual package and pocket errors.
Debian Stable and Proxmox VE: Best Linux Distro for Home Lab
Debian stable on bare metal with Proxmox VE hypervisor beats rolling releases for home labs. Learn why boring, predictable infrastructure matters for stability.
Upgrade CentOS 7 to CloudLinux: A Complete Step-by-Step Guide
If you’re running CentOS 7 and looking to make the switch to CloudLinux, you’re in the right place. CloudLinux is a great option, especially if you’re managing a web hosting environment. It enhances server stability, security, and efficiency—qualities that are crucial for any hosting business. Upgrading from CentOS 7 to CloudLinux might seem like a […]