Server Control: SSH & SFTP

Take control of your virtual private servers (VPS) and dedicated hosts directly from your pocket. Server Control establishes direct, secure SSH connections to your Linux machines to retrieve telemetry, run commands, manage files, containers and services, completely agentless.

Key Features:

📊 REAL-TIME RESOURCE TELEMETRY
* Live dashboard charts showing CPU load, RAM allocation, and Disk space usage.
* Zero-Agent Daemon: no tracking software required on the server. Metrics are fetched with secure, lightweight shell queries.
* Set safety limits and receive notifications when CPU, memory, or disk usage cross your thresholds.

💻 INTERACTIVE SSH TERMINAL
* Runs real shell commands: pipes, redirects and sudo all work. Password-based servers answer the sudo prompt for you.
* Live output as a command runs, and a touch keypad with Ctrl+C, Esc, Ctrl+D, Tab completion, command history (up/down) and common symbols.
* Stop a runaway command with Ctrl+C, or KILL it outright.
* Commands keep running when the screen turns off.
* Shows the exit status of failed commands. Path-aware navigation and a persistent command history.
* Type nano or vi with a file name to edit it in the built-in editor, saved straight back to the server.

📁 FILES OVER SFTP
* Browse your server with a tappable path bar, using the same SSH connection: no extra setup, no second login.
* Upload and download with progress and Cancel. A cancelled upload never damages the file it was replacing.
* Rename, delete and create folders.
* Preview images (JPG, PNG, WebP, BMP) with pinch to zoom, without saving them.
* Edit text and config files in place.
* Search a folder as you type and sort by name, size or date.
* No storage permission needed: files go through Android's own file picker.

🐳 DOCKER & CONTAINER MANAGEMENT
* Instantly view running, stopped, and paused containers.
* Monitor live CPU, Memory, and I/O per container from 'docker stats'.
* Start, stop, restart, or kill containers and view logs on the fly.

⚙️ SYSTEMD SERVICE CONTROLLER
* Inspect the status of services such as Nginx, MySQL, PostgreSQL, Docker and Cron.
* Start, stop, restart, or reload services.
* Quick access to journal logs using 'journalctl'.

✉️ MAIL SERVER DASHBOARD
* Status checker for Postfix (SMTP) and Dovecot (IMAP).
* Review and manage (flush/purge) active mail queues.
* Real-time DNSBL reputation checks to verify your mail server IP is not blacklisted.

🔒 HARDWARE-BACKED SECURITY & PRIVACY
* Server credentials are encrypted on-device using AES/GCM/NoPadding via the Android Keystore.
* SSH keys protected by a passphrase are supported. The passphrase unlocks the key on your phone and is never sent to the server.
* Host Key Verification (TOFU, Trust on First Use) defends against Man-in-the-Middle attacks.
* Lock the app behind native biometric authentication (fingerprint or face unlock).
* Data Deletion Compliance: purge all servers, keys, and cached history instantly with 'Factory Reset' in Settings.
* ZERO Analytics & ZERO Telemetry, so your server credentials and logs stay strictly confidential.

Recent changes:
New: Files tab. Browse your server over SFTP, upload and download files, rename, delete, create folders, preview images, edit text files in place, and search or sort.
New: private keys protected by a passphrase now work.
New app icon.
Fixed: Back now returns to Monitor before leaving the app.
Fixed: extra gap above titles on Docker, Systemd and Servers.
Fixed: app failing to open after a command with huge output.