xamox

Install ARCH Linux with encrypted file-system and UEFI

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This guide was originally taken from: https://gist.github.com/mattiaslundberg/8620837 and updated to markdown as well as adding desktop and wireless setup

Download the archiso image from https://www.archlinux.org/ Use etcher to create USB drive: https://etcher.io/

innovia

#!/bin/bash
set -e
set -o pipefail

# Add user to k8s using service account, no RBAC (must create RBAC after this script)
if [[ -z "$1" ]] || [[ -z "$2" ]]; then
 echo "usage: $0 <service_account_name> <namespace>"
 exit 1
fi

sckalath

// Determine linux distribution and version
cat /etc/issue
cat /etc/*-release
cat /etc/lsb-release
cat /etc/redhat-release

// Determine kernel version - 32 or 64-bit?
cat /proc/version
uname -a
uname -mrs

mattiaslundberg

# Install ARCH Linux with encrypted file-system and UEFI
# The official installation guide (https://wiki.archlinux.org/index.php/Installation_Guide) contains a more verbose description.

# Download the archiso image from https://www.archlinux.org/
# Copy to a usb-drive
dd if=archlinux.img of=/dev/sdX bs=16M && sync # on linux

# Boot from the usb. If the usb fails to boot, make sure that secure boot is disabled in the BIOS configuration.

# Set swedish keymap

KartikTalwar

The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync (Everyone seems to like -z, but it is much slower for me)

• a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.
• H: preserves hard-links
• A: preserves ACLs

rantav

A few show tricks to find slow queries in mongodb

Enable profiling

First, you have to enable profiling

> db.setProfilingLevel(1)

Now let it run for a while. It collects the slow queries ( > 100ms) into a capped collections, so queries go in and if it's full, old queries go out, so don't be surprised that it's a moving target...

xamox

class AutoVivification(dict):
    """
    Implementation of perl's autovivification feature.
    
    >>> a = AutoVivification()
    >>> a[1][2][3] = 4
    >>> a[1][3][3] = 5
    >>> a[1][2]['test'] = 6
    >>> print a
    >>> {1: {2: {'test': 6, 3: 4}, 3: {3: 5}}}