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MacOS Sierra and ssh public key

If ssh dsa key is used for password-less access to other boxes, it won't work in MacOS Sierra anymore.  It's because: The problem is that DSA keys are obsolete after...

Raspberry Pi 3 as Time machine

The Raspberry Pi 3 + external 4TB drive setup, originally I tried to set it up as Plex server. And the CPU is just not powerful enough. I decided to...

Raspberry Pi = Plex + NAS server

update: So far the Raspberry Pi 3 is not powerful enough for me.  It takes several minutes for a movie to start streaming a mp4 file to ATV in the...

Phidgets 1048 on OSX

update: 2017/07/05 After update macos to high sierra, phigets driver needs to be reinstalled. With latest version of Roastmaster, you can use latest Phigets driver. I got the Phidgets 1048...

Aeropress 愛樂壓 創辦人演講

[youtube=https://www.youtube.com/watch?v=iidmqCWCxsg&w=800&h=450] 重點: the longer you brew, the bitter it get. 泡越久就越苦。 水溫:中焙或深焙:175℉ (80℃);淺焙:185℉ (85℃)。 咖啡粉刻度:粗細依個人喜好(可細到expresso,或一般手沖刻度),建議espresso刻度或fine-drip。 水量:兩匙咖咖,沖到刻度二。 攪拌:count to 20,大約10秒。 不建議水加滿,會太苦。 aeropress咖啡冠軍得主大部分用正向沖法,不用inverted method 他是喝深焙的。 最後來看一下2014 Aeropress冠軍: [youtube=https://www.youtube.com/watch?v=kdKVS5X0vJ0&w=800&h=450]

El Capitan & Homebrew

El Capitan just released. And surely we need to take care the upgrade for Homebrew. Check this out if you're not familiar with it. Here's the upgrade steps: update xcode...

美國-信用風險利差 高收益債
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