<![CDATA[[Vivian Voss (.net)]]]>26/09/14

⇒ The Firewall I Never Had to Relearn

A complete home router in twenty-three lines, in a grammar I learned once and have been writing for twenty years. The bill for that arrangement has never arrived. Unix Universe.

26/09/15

⇒ What Was Already Watching

The standard answer to brute force costs a hundred megabytes of interpreter and twenty-seven regular expressions, to work out something the daemon already knew. There are three other answers, and two of them were running before I installed anything. The Bench Marker.

]]>https://billboard.bsd.cafe/topic/346/vivian-voss-.netRSS for NodeWed, 30 Sep 2026 21:37:59 GMTTue, 15 Sep 2026 09:28:46 GMT60<![CDATA[Reply to [Vivian Voss (.net)] on Wed, 30 Sep 2026 12:43:47 GMT]]>26/09/30

⇒ The Forty-Four Switches on ls

The standard asks ls for 26 switches. This machine gives it 44, and the GNU tree gives it 60. Every single one of them had a reason. Lean Software.

]]>https://billboard.bsd.cafe/post/1041https://billboard.bsd.cafe/post/1041Wed, 30 Sep 2026 12:43:47 GMT<![CDATA[Reply to [Vivian Voss (.net)] on Tue, 29 Sep 2026 12:47:30 GMT]]>26/09/29

⇒ What FreeBSD Charges at the Boundary

A system call on this machine costs fifty-two nanoseconds. The same call in a Linux guest on the very same processor costs eight hundred and sixteen. Neither number is about the kernel type, and that is the finding. The Bench Marker.

]]>https://billboard.bsd.cafe/post/1040https://billboard.bsd.cafe/post/1040Tue, 29 Sep 2026 12:47:30 GMT<![CDATA[Reply to [Vivian Voss (.net)] on Wed, 23 Sep 2026 10:19:49 GMT]]>26/09/21

⇒ The udev Rule That Runs as Root

Six actions make up the entire rule language that decides what my machines show in /dev, and not one of them can execute anything. The other answer to the same problem grew a technique number in the ATT&CK catalogue. Unix Universe.

26/09/23

⇒ The Two Dollars Between dma and the Inbox

A 67-kilobyte program in the base system will send your mail. The invoice is for the part where somebody agrees to accept it. Lean Software.

]]>https://billboard.bsd.cafe/post/1027https://billboard.bsd.cafe/post/1027Wed, 23 Sep 2026 10:19:49 GMT