Virtualization tutorial - IT technology blog
Posted inVirtualization

QEMU Monitor Console and QMP Protocol: Control, Debug, and Inject Errors into KVM VMs from the Hypervisor Layer

QEMU Monitor Console and QMP Protocol allow you to control KVM virtual machines directly from the hypervisor layer without SSH-ing into the guest OS. This guide covers connecting to the monitor, using QMP with Python for automation, and practical debugging techniques such as memory dumps, disk error injection, and network packet capture.
Python tutorial - IT technology blog
Posted inPython

Python Logging Guide: Debug Faster, Operate Smarter

Python's logging module solves the debug and operational challenges that arise when print() is no longer enough. This guide covers basic setup, log rotation, organizing loggers by module, and how to log exceptions correctly so you never lose a traceback when production breaks.