ageis

YubiKey 4 series GPG and SSH setup guide

Written for fairly adept technical users, preferably of Debian GNU/Linux, not for absolute beginners.

You'll probably be working with a single smartcard, so you'll want only one primary key (1. Sign & Certify) and two associated subkeys (2. Encrypt, 3. Authenticate). I've published a Bash function which automates this slightly special key generation process.

karawoo

Where I live there are a lot of little drive-thru coffee shops that like to advertise special beverages. Many of these disturb me. Here is a non-comprehensive list of ones I have seen:

• Starburst Red Bull
• Red Bull huckleberry lemonade
• Rainbow sherbet Red Bull bombers
• Almond Joy mocha
• Pineapple upside down Red Bull
• Banana bread latte
• Pecan pie latte
• Butterfinger mocha

oakes

Contents

• Why care about Rust?
• The Toolchain
• Creating a New Project
• Modules
• Crates
• Types
• References
• Mutability

zmwangx

This is a sequel to "Postfix: relay to authenticated SMTP".

I would like to send mail from two different Gmail accounts using Postfix. Here is the relevant section in the Postfix documentation: Configuring Sender-Dependent SASL authentication.

As a concrete example, here's how to set up two Gmail accounts (only relevant sections of the config files are listed below):

/etc/postfix/main.cf:
    # sender-dependent sasl authentication
    smtp_sender_dependent_authentication = yes

sender_dependent_relayhost_maps = hash:/etc/postfix/sender_relay

john2x

Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)

Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.

Vectors and Sequences

celoyd

This is my default career advice for people starting out in geo/GIS, especially remote sensing, adapted from a response to a letter in 2013.

I'm currently about to start a Geography degree at the University of [Redacted] at [Redacted] with a focus in GIS, and I've been finding that I have an interest in working with imagery. Obviously I should take Remote Sensing and other similar classes, but I'm the type of person who likes to self learn as well. So my question is this: What recommendations would you give to a student who is interested in working with imagery? Are there any self study paths that you could recommend?

I learned on my own and on the job, and there are a lot of important topics in GIS that I don’t know anything about, so I can’t give comprehensive advice. I haven’t arrived anywhere; I’m just ten minutes ahead in the convoy we’re both in. Take these recommendations critically.

Find interesting people. You’ll learn a lot more from a great professor (or mentor, or friend, or conference) o

krishnanraman

Trivia problem: Generate primes between 1 and 100 million with Scalding
Input: Numbers from 1 to 100 million, 1 per line - use a simple C program for this
Output: Filter input for primes using the filter function on pipes in Scalding
Execution time: 13:11:00 to 13:25:54 = 15 minutes in hdfs-local mode
Part files: 27
$ ls
part-00000 part-00002 part-00004 part-00006 part-00008 part-00010 part-00012 part-00014 part-00016 part-00018 part-00020 part-00022 part-00024 part-00026 part-00001 part-00003 part-00005 part-00007 part-00009 part-00011 part-00013 part-00015 part-00017 part-00019 part-00021 part-00023 part-00025

$ tail part-00026
99999787

larrybotha

Configure Postfix for Gmail SMTP in Mac OSX Mavericks

Taken from Using MacOSX Lion command line mail with Gmail as SMTP

Edit file /etc/postfix/main.cf

sudo vim /etc/postfix/main.cf