FreeBSD pf bypass when using IPv6(enricobassetti.it)

53 points by todsacerdoti 3 years ago | 38 comments

How does Linux NAT a ping?(devnonsense.com)

288 points by willdaly 3 years ago | 81 comments

macOS 14 Sonoma firewall bug fixed(mullvad.net)

67 points by elashri 3 years ago | 6 comments

OpenSSH Ships on Every Mac, Linux Server and Windows. Its Creator Trusts No One(zbruceli.org)

4 points by zbruceli 20 days ago | 0 comments

Long-form blog profile of OpenSSH creator Theo de Raadt, covering his NetBSD exit, lost DARPA grant, and security-focused philosophy.

MacOS sometimes leaks traffic after system updates(mullvad.net)

344 points by dulvui 2 years ago | 172 comments

Mullvad blog post reporting that macOS can leak traffic outside the VPN tunnel after system updates because the firewall ignores rules until a reboot.

Bug in macOS 14 Sonoma prevents our app from working(mullvad.net)

973 points by eptcyka 3 years ago | 229 comments

Mullvad VPN blog post explaining that a bug in the macOS 14 Sonoma packet filter firewall breaks its app and can cause traffic leaks.