No. Command generation is plain JavaScript in your browser. Hostnames, IPs, paths and ports never leave your machine.
Free Server Tool — 100% In-Browser
Linux Command Builder for Server Admins
Stop hand-writing error-prone commands. Pick a task, fill in a few fields, and get exact copy-paste commands for SSH keys & tunnels, rsync transfers, cron jobs, vhosts, systemd units, fail2ban jails, UFW rules and OpenSSL inspection — built entirely in your browser.
Copy-Paste Linux Commands, Built Safely
Most server mistakes happen in the 30 seconds before you press Enter: a mistyped rsync path that wipes a directory, a cron schedule that fires every minute, an SSH tunnel with the wrong port order. The Linux Command Builder generates the command for you from a short form, so typos never reach your shell.
Every command is produced by JavaScript in your browser — hostnames, IPs and paths you type are never sent to any server.
1. Pick a Task
Choose from seven tabs: SSH, file transfer, cron, vhosts, systemd, firewall & fail2ban, and OpenSSL inspection.
2. Fill the Form
Hostnames, ports, paths and options. Sensible production defaults are pre-selected.
3. Copy the Command
Ready-to-paste commands with the exact flags, quoting and port order the man page demands.
4. Ship It
Review once, paste into your terminal. Nothing is uploaded, logged or stored anywhere.
Linux Command Builder
Cron expression: 30 2 * * *
This tab generates inspection commands only — we never generate private keys here. To create a CSR or decode a certificate, use the SSL Checker / Decoder / CSR Generator.
Everything above runs in JavaScript in your browser. Hostnames, IPs, paths and ports you enter are never uploaded — making this safe to use against production infrastructure.
What Each Tab Generates
| Tab | Covers | Typical use |
|---|---|---|
| SSH | ssh-keygen, ~/.ssh/config blocks, local & remote forwards, SOCKS5 proxy | Key rollout, jump access, tunnelling a database or admin UI |
| rsync / scp / tar | Push & pull transfers with dry-run, --delete, compression, progress; portable tar archives | Deployments, migrations, backups |
| cron | Schedule builder with live expression preview and install commands | Backups, renewals, maintenance scripts |
| Nginx / Apache | Production vhost: www redirect, gzip, caching, PHP-FPM, SSL + HTTP→HTTPS redirect | New site bring-up, config review |
| systemd | Hardened unit file + enable/start/log commands | Running your app as a proper service |
| UFW / fail2ban | Safe initial firewall, port rules, IP denies, fail2ban SSH jails | Locking down a fresh VPS |
| OpenSSL | Cert/CSR/key inspection, live chain checks, match verification | TLS troubleshooting (no key generation) |
Linux Command Builder — FAQ
Are the commands I build uploaded anywhere?
Why does rsync show a dry-run first?
A dry-run (-n) lists what would change without touching anything. Combined with --delete it can reveal files you did not expect to lose. Always dry-run before your first real sync against production.
Can this tool generate private keys or CSRs?
No — by design. Private keys should never be generated by a web page. Use the OpenSSL tab for inspection commands, and our SSL Checker / Decoder / CSR Generator for CSRs and certificate decoding.
Which distro are the commands for?
Debian and Ubuntu primarily (apt paths, package names), but the generated commands work on any systemd-based Linux. Package-install lines note the RHEL/CentOS equivalents where they differ.
How do I test a cron schedule before going live?
The cron tab outputs a one-liner you can run manually, plus grep CRON /var/log/syslog to confirm the job fired. Set a short interval, verify, then switch to the real schedule.
What's the safest first firewall setup for a new VPS?
Default deny incoming, allow outgoing, permit SSH (rate-limited), 80 and 443 — which is exactly what the "Initial UFW setup" task generates. Then add fail2ban for SSH to stop brute-force attempts automatically.