This tutorial is for those who have not yet jumped on the IPv6 bandwagon.
The goal is for participants to be able to understand how IPv6 works, how an addressing plan could be built for an enterprise network, and how this can be configured on FreeBSD and OpenBSD.
We will also configure services to work on IPv6 and discuss the implications of configuring PF rules for them.
To complete...
This tutorial is for those who have not yet jumped on the IPv6 bandwagon.
The goal is for participants to be able to understand how IPv6 works, how an addressing plan could be built for an enterprise network, and how this can be configured on FreeBSD and OpenBSD.
We will also configure services to work on IPv6 and discuss the implications of configuring PF rules for them.
To complete...
The OpenBSD Packet Filter (PF) is at the core of the network management toolset available to professionals working with the BSD family of operating systems.
Understanding the networking toolset is essential to building and maintaining a functional envirionment. The present session will both teach principles and provide opportunity for hands-on operation of the extensive network tools...
The OpenBSD Packet Filter (PF) is at the core of the network management toolset available to professionals working with the BSD family of operating systems.
Understanding the networking toolset is essential to building and maintaining a functional envirionment. The present session will both teach principles and provide opportunity for hands-on operation of the extensive network tools...
We've all heard stories of the dreaded cosmic ray angrily flipping bits in your RAM. But how much does it matter, really? And, more importantly, how do you tell?
This talk will cover an overview of hardware architecture around detecting and correcting memory errors, software support for handling them and other types of hardware errors, and stories of memory errors in the real...
Are you new to the BSD community, or just looking to meet some new people? At this BoF we'll just try to introduce everyone and talk (briefly!) about what they are interested in.
Kind of a human search engine for topics of shared interest.
Come find other people interested in the same thing as you, or new things to be interested in!
The FreeBSD project doesn't guarantee the ABI stability in major version. However, for the minor version, we also not fully guarantee. This cause maintaining a out-of-tree module (at least for Kernel module like VirtualBox) a big problem because module compiles from 14.0 may not able to use at 14.1. This also cause some problem when distributing modules with freshpkg in our base because our...
Mapping abstract symbol names in source code to concrete addresses at runtime requires cooperation between the compiler, static linker, and runtime loader. This talk will talk about some of the practices and data structures used for this task including ELF relocations, Global Offset Tables and Procedure Linkage Tables. Depending on time, it may also cover some more advanced topics such as...
This talk tells the history of the BSD Daemon. It starts with the first renditions in the 1970s of the daemons that help UNIX systems provide services to users. These early daemons were the inspiration for the well-known daemon created by John Lasseter in the early 1980s that became synonymous with BSD as they adorned the covers of the first three editions of `The Design and Implementation of...
Testing an operating system is not easy. FreeBSD project uses Kyua testing framework and has continuously made efforts to add more test cases. They are mostly written in shell scripts or some lightweight programming languages. Writing and maintaining complex test cases is still challenging.
This talk introduces TTCN-3, Testing and Test Control Notation version 3. This is a...
The misuse of AI in education for cheating purposes has created challenges in assessing students' authentic contributions in the last couple of years. Another issue we identified is that University labs rarely teach problem-solving skills for a real-world scenario that students have to deal with in their post-academic working life (i.e. fixing production issues). Traditional assignments lacked...
FreeBSD's audio subsystem, sound(4), is one of the fastest out there, but is rather unknown and until recently was largely unmaintained. This talk will go through the various components of sound(4) that make sound possible on FreeBSD, that is:
- The generic driver's structure, control flow and interaction with the device drivers.
- The audio processing chain.
- The user-facing interfaces...
A wide ranging conversation about all things network related and the BSDs.
Topics typically include the state of various network stacks, kvetching about the network, switches, routers, and how we are using the BSDs to solve network problems.
Join our panel of ZFS experts over lunch as they field questions from the audience about ZFS, new features, best practices, and everything else related to storage.
If you deploy ZFS, or are considering doing so, you should join us.
A walkthrough of a packet's journey through (FreeBSD's) pf, concentrating on the big picture and its implications.
We'll cover when packets are inspected, when rules are evaluated and how states are used. Along the way we'll cover what DTrace probes can show us, what some of pfctl's counters mean and just how many times pf can look at a single packet.
This talk is intended for firewall...
Open Source is participatory and BSD Unix is no exception, with its own unique development workflows and events. Bug reporting, code proposing, and event participation are fundamental elements of the BSD Unix community and despite appearances, are open to anyone to participate.
This talk will take a pragmatic tour of effective engagement on these topics with real-world examples and tips...
KASAN is a kernel sanitizer commonly combined with fuzzing techniques to detect memory corruption bugs, some of which could lead to security compromise. Currently, FreeBSD's KASAN can only detect a subset of temporal safety vulnerabilities due to the lack of a delayed freeing mechanism of freed items. Furthermore, the effectiveness of detecting spatial safety vulnerabilities is also limited...
In a world ruled by expect(1) and TCL, we discuss an alternative that was developed based on scripting with lua instead. porch(1) was developed with a language already available and used in FreeBSD base in mind, with the aim of TTY testing via pts(4).
The overall aim of this project is to provide a simple subset of expect(1) functionality specifically aimed at developer and sysadmin...
ISC has been proudly using FreeBSD in production for a long time, including to serve critical internet infrastructure with a global user base (including you!), from the DEC Alpha days up till now, mostly on bare-metal.
In this talk I'll go over some of how we (and I) got here, how we've managed far-away installs and upgrades without remote hands during a global pandemic, and how we...
