Unauthorized images may be "poisoned" with backdoors or modified configurations that could compromise your host machine or local network.
Offers the vEOS (Virtual Extensible Operating System) for free with a guest account on their site.
An open-source, network OS that runs natively on QEMU. ⚖️ A Note on Legality and Security gns3 qemu images download
It is tempting to look for "all-in-one" mega-packs on torrent sites or file-sharing clouds. However, you should be aware of two major risks:
The native format for QEMU. It supports "copy on write," meaning the file only grows as data is written. Unauthorized images may be "poisoned" with backdoors or
If you need hosts or servers to test your network connectivity, these are free and easy to find:
Most major networking vendors now provide "Cloud" or "Virtual" versions of their hardware specifically for labbing. ⚖️ A Note on Legality and Security It
Originally for VMware, but highly compatible with GNS3/QEMU.