Telegram Usage

Plain text sent from an allowed Telegram chat is forwarded to the configured Linux account’s shell.

Examples:

pwd
ls -la
systemctl --user status
tail -n 100 /var/log/syslog

Control Commands

Command	Description
/status	Show uptime, PID, allowlist, and rate counters
/sigint	Send Ctrl-C to the shell
/sigterm	Send SIGTERM to the shell
/restart	Restart only the shell while keeping the program running
/lock	Temporarily block shell input
/unlock	Resume shell input

Interactive Program Limits

Telegram uses message-based input and output. TUI and interactive programs like these cannot be controlled reliably:

• vim
• vi
• nano
• less
• more
• man
• top
• htop
• tmux
• screen

These programs depend on real-time key input, cursor control, and ANSI escape sequences. With Telegram messages only, they may appear frozen or unusable.

rtmn blocks some known interactive programs before execution. This is a convenience guardrail, not a security boundary.

The real security boundaries are:

• Telegram chat allowlist
• Linux execution account permissions
• Server file permissions and sudo policy