Linux & Sysadmin Tools

Linux command builders, config generators and explainers for nginx, sshd, systemd, netplan, rsync, find, chmod and chown.

This is the group that grew fastest, because Linux configuration is where a small typo has an outsized cost: a bad sshd_config locks you out of the box, a bad fstab entry stops it booting, a bad chown -R takes the whole filesystem with it. Every builder in this category therefore does two jobs - it assembles the command or file, and it validates the mistakes that actually break systems, in plain English, before you paste anything into a root shell.

If you are hardening a new VPS, the path is SSH configuration generator, then firewall planner, then systemd service generator for whatever you are running. If you are debugging permissions, start with the permission visualiser to see what a mode means, move to the umask or chmod calculator to change it, and use the ownership generator when the problem is the owning user rather than the mode. For web serving, the nginx server block and reverse proxy generators cover the two shapes people actually need.

Every tool here is a command or file builder, not a runner: nothing is executed, nothing is uploaded, and the output is shown as copyable text with a plain-English explanation of each option chosen. That matters when you are working on a production server from a laptop, and it is why these tools work offline once loaded.

12 tools in this category

• Linux Command Builder — Build copy-ready Linux commands for files, permissions, processes, packages & system
• Linux Command Explainer — Paste any shell command or pipeline and get a plain-English breakdown of every
• Firewall Rule Planner — Plan & audit firewall rules in your browser: overlap, shadowing, duplicate & redundancy
• Systemd Service Generator — Generate systemd .service unit files for Python, Node & background services: live
• Netplan YAML Generator — Build netplan YAML for Ubuntu wired & Wi-Fi: DHCP or static IP (address, gateway, DNS)
• Reverse Proxy Configuration Generator — Generate Nginx reverse proxy configs for Raspberry Pi apps: HTTP or HTTPS with Let's
• Nginx Server Block Generator — Generate Nginx server blocks for domains, local apps & static sites: HTTPS with Let's
• Fstab Entry Generator — Generate /etc/fstab entries for USB drives, SSDs & NFS/CIFS network shares: presets
• Rsync Command Builder — Build rsync commands for local, remote (SSH) & incremental sync: direction presets
• SSH Configuration Generator — Generate a hardened sshd_config for Ubuntu and Debian servers: hardening presets (keys
• Find Command Builder — Generate a Linux find command in your browser: pick the starting directory, then match
• Linux Ownership Command Generator — Generate chown and chgrp commands for files, directories, users and groups: set the

Other tool categories

← All tools A–Z · Tech tips & guides