IPP-over-USB allows using the IPP protocol, normally designed for network printers, to be used with USB printers as well.

The idea behind this standard is simple: It allows to send HTTP requests to the device via a USB connection, so enabling IPP, eSCL (AirScan) and web console on devices without Ethernet or WiFi connections.

Unfortunately, the naive implementation, which simply relays a TCP connection to USB, does not work. It happens because closing the TCP connection on the client side has a useful side effect of discarding all data sent to this connection from the server side, but it does not happen with USB connections. In the case of USB, all data not received by the client will remain in the USB buffers, and the next time the client connects to the device, it will receive unexpected data, left from the previous abnormally completed request.

Actually, it is an obvious flaw in the IPP-over-USB standard, but we have to live with it.

So the implementation, once the HTTP request is sent, must read the entire HTTP response, which means that the implementation must understand the HTTP protocol, and effectively implement a HTTP reverse proxy, backed by the IPP-over-USB connection to the device.

And this is what the ipp-usb program actually does.

CrowdSec is a free, modern & collaborative behavior detection engine, coupled with a global IP reputation network. It stacks on fail2ban's philosophy but is IPV6 compatible and 60x faster (Go vs Python), it uses Grok patterns to parse
logs and YAML scenarios to identify behaviors. CrowdSec is engineered for modern Cloud / Containers / VM-based infrastructures (by decoupling detection and remediation). Once detected you can remedy threats with various bouncers
(firewall block, nginx http 403, Captchas, etc.) while the aggressive IP can be sent to CrowdSec for curation before being shared among all users to further improve everyone's security.

Crowdsec bouncer written in golang for firewalls.

crowdsec-firewall-bouncer will fetch new and old decisions from a CrowdSec API to add them in a blocklist used by supported firewalls.

A CLI application to interact with the system keyring. Replacement of the secret-tool utility.

a file system for mounting container images

distrobuilder is an image building tool for LXC and LXD/Incus.

The image definition is a YAML document which describes the source of the image, its package manager, what packages to install/remove for specific image variants, os releases and architectures, as well as additional files to generate and arbitrary actions to execute as part of the image build process.

The output is either a plain root filesystem, a LXD/Incus image or a LXC image.

This project is empty.

apitrace consists of a set of tools to:
- trace OpenGL, OpenGL ES, Direct3D, and DirectDraw APIs calls to a file;
- replay the recorded calls from a file, on any machine and, for OpenGL and OpenGL ES, on any operating system;
- inspect state at any call while replaying;
- view framebuffers and textures;
- view call data;
- edit trace files;
- profile performance of traces;