Lucas Teske racerxdl

I was tired of Chrome eating all my laptop resources so I decided to put some limit to it with cgroup.

As I was using Ubuntu 12.04 with support for cgroup, I installed the package cgroup-bin and add the following group to the file /etc/cgconfig.conf:

group browsers {
    cpu {
#       Set the relative share of CPU resources equal to 25%
        cpu.shares = "256";
 }

UFW

I use Ubuntu’s Uncomplicated firewall because it is available on Ubuntu and it's very simple.

Install UFW

if ufw is not installed by default be sure to install it first.

First and foremost, let's take a look at the following pieces of code. The first one is something you should be rather familiar with, and the second one is also a somewhat familiar idiom these days (at least in languages with higher-order functions):

// Example 1:
30 + 12

// Example 2:
xs.map(f)

Every so often I have to restore my gpg keys and I'm never sure how best to do it. So, I've spent some time playing around with the various ways to export/import (backup/restore) keys.

Method 1

Backup the public and secret keyrings and trust database

cp ~/.gnupg/pubring.gpg /path/to/backups/
cp ~/.gnupg/secring.gpg /path/to/backups/
cp ~/.gnupg/trustdb.gpg /path/to/backups/

or, instead of backing up trustdb...

	# Heavily depends on:
	# libqrencode (fukuchi.org/works/qrencode/)
	# paperkey (jabberwocky.com/software/paperkey/)
	# zbar (zbar.sourceforge.net)

	# Producing the QR codes:
	# Split over 4 codes to ensure the data per image is not too large.
	gpg --export-secret-key KEYIDGOESHERE \| paperkey --output-type raw \| base64 > temp
	split temp -n 4 IMG
	for f in IMG*; do cat $f \| qrencode -o $f.png; done

	/*
	Check SSE/AVX support.
	This application can detect the instruction support of
	SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4a, SSE5, and AVX.
	*/

	#include <iostream>
	#ifdef _MSC_VER
	#include <intrin.h>
	#endif

	LD SP,$fffe ; $0000 Setup Stack

	XOR A ; $0003 Zero the memory from $8000-$9FFF (VRAM)
	LD HL,$9fff ; $0004
	Addr_0007:
	LD (HL-),A ; $0007
	BIT 7,H ; $0008
	JR NZ, Addr_0007 ; $000a

	LD HL,$ff26 ; $000c Setup Audio

	import android.content.Context;
	import android.util.AttributeSet;
	import android.view.GestureDetector;
	import android.view.MotionEvent;
	import android.view.ViewConfiguration;
	import android.widget.LinearLayout;

	public class SwipeLinearLayout extends LinearLayout {
	private GestureDetector gestureDetector;
	private OnSwipeListener listener;

	#!/bin/bash
	# bash generate random alphanumeric string
	#

	# bash generate random 32 character alphanumeric string (upper and lowercase) and
	NEW_UUID=$(cat /dev/urandom \| tr -dc 'a-zA-Z0-9' \| fold -w 32 \| head -n 1)

	# bash generate random 32 character alphanumeric string (lowercase only)
	cat /dev/urandom \| tr -dc 'a-z0-9' \| fold -w 32 \| head -n 1

	#!/usr/bin/env python
	#
	# jnlp_crawler.py - Download all the jar files in a jnlp file for offline examination
	# Sheran Gunasekera
	#

	from xml.dom.minidom import parse
	from xml.parsers.expat import ExpatError
	import urllib
	import sys