v2025.12.1 Initial Release

Don's System Monitor

v2025.12.1 (YYYY.MM.R)

Unified system monitoring application with host and viewer modes in a single binary/script.
Designed for local monitoring, headless servers, and secure remote viewing.

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How to use

Host mode

Runs the system metrics collector, optional local GUI, and remote TCP server.

With GUI

(Default unless headless_default is true in config or --headless is supplied)

python main.py --mode host

Headless host

(No GUI, logging + remote TCP interface only)

python main.py --mode host --headless

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Viewer mode

Remote client GUI that connects to a host over TCP and displays its metrics.

Using config defaults

(IP, port, and password read from sysmon.config.json)

python main.py --mode viewer

Overriding target from CLI

python main.py --mode viewer --server-ip 192.168.1.50 --server-port 34255 --password someSecret --refresh-ms 1000

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Configuration

All runtime behavior is controlled through sysmon.config.json.

Host / server settings

• remote_bind_addr
• remote_port
• remote_password
• resource thresholds (CPU / RAM)
• headless_default

Viewer / client settings

• viewer_default
• viewer_server_ip
• viewer_server_port
• viewer_password
  • If empty, defaults to remote_password
• viewer_refresh_ms

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Notes

• I personally suggest launching the executable, closing it and editing the config it created before restarting and using the application/service
• One binary supports both host and viewer modes.
• Mode selection is controlled via --mode or config defaults.
• Remote access uses a simple authenticated TCP interface.
• Designed for safe headless operation and low-overhead continuous use.