openbsd

A blog post details the author's experience running OpenBSD on a Lemote Yeeloong laptop with a Chinese Loongson MIPS processor, discussing hardware, software challenges, and the free software philosophy.

A 27-year-old authentication bypass vulnerability in OpenBSD's PPP stack allows an attacker to gain full PPPoE access without credentials by sending zero-length username and password fields, exploiting a missing bounds check in the PAP handler. The same code also permits a kernel heap over-read.

In August 2002, the OpenSSH source tarballs on the OpenBSD FTP server were replaced with trojaned versions, leading to a security incident and response by the OpenBSD team.

A technical guide for fixing UTF-8 email encoding issues from cron on OpenBSD by creating a sendmail wrapper that encodes non-ASCII headers and adds Content-Type declarations before handing messages to dma.

Openrsync is a BSD-licensed reimplementation of rsync by the OpenBSD team, compatible with modern rsync protocol and supporting Unix systems.

Peter N. M. Hansteen describes his transition to OpenSMTPD as OpenBSD 7.9 drops exim, arguing that OpenSMTPD is the mail server for the 21st century.

OpenBSD 7.9 has been released, featuring platform-specific improvements for arm64, amd64, luna88k, riscv64, and other architectures, along with various bug fixes and enhanced hardware support.

This project provides patches and scripts to add experimental MAP-E CE (RFC7597) support to OpenBSD 7.8 routers, including kernel patches and a companion application called maped.

OpenBSD developer details the painful quirks of VAX floating-point exceptions and how they complicate kernel porting.