shane shanezhiu

Bot-Buster™

Tracks nefarious activity on website, and manages accordingly.

It's probably a bot.

If the requesting entity:

declares its user-agent as being wget, curl, webcopier etc - it's probably a bot.
requests details -> details -> details -> details ad nauseum - it's probably a bot.
requests the html, but not .css, .js or site furniture - it's probably a bot.

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";
 }

Merging feature branches with rebase:

git checkout master
git pull --rebase to make sure you have the latest version of master
git checkout feature/my-branch
git rebase master ... to rebase this branch from master
1. Optionally, git push --force to update the branch on github. This is useful for making sure it closes a pull request properly.
git checkout master
git merge --no-ff feature/my-branch ... merge the branch into master, making sure there's a merge commit

Never touch your local /etc/hosts file in OS X again

To setup your computer to work with *.test domains, e.g. project.test, awesome.test and so on, without having to add to your hosts file each time.

Requirements

Homebrew
Mountain Lion -> High Sierra

Install

Passing TCP socket descriptors around

In linux, normally, it is impossible to "bind()" to the same TCP port twice. If you try to bind to the same port from second proces unix processes you'll see:

socket.error: [Errno 98] Address already in use

	document.getElementsByTagName('*').length 可以查看DOM元素的数量

	前端开发的出品建议：

	1、页面能够通过http://validator.w3.org的验证，当然css希望也能通过http://jigsaw.w3.org/css-validator/validator难证，不过有时候由于需要兼容多浏览器，会受到hack的影响，css不做强制要求。

	2、静态页面应该能够通过yslow2.0的classic（V1）级别的检测，检测的结果我觉得应该得到A。

	3、背景图片保证不超过3个以上，css文件不超过2个，js文件不超过3个。而且良好的遵守web标准的一些规定，css放到head中，js文件放到</body>之前或者之后。

	package main

	import "fmt"

	// fibonacci is a function that returns
	// a function that returns an int.
	func fibonacci() func() int {
	f2, f1 := 0, 1
	return func() int {
	f := f2

	gnome-cups-manager
	------------------

	Once upon a time there was a printer who lived in the woods. He was a
	lonely printer, because nobody knew how to configure him. He hoped
	and hoped for someone to play with.

	One day, the wind passed by the printer's cottage. "Whoosh," said the
	wind. The printer became excited. Maybe the wind would be his
	friend!

	[T]he difference between a bad programmer and a
	good one is whether he considers his code or his
	data structures more important. Bad programmers
	worry about the code. Good programmers worry about
	data structures and their relationships.
	-- Linus Torvalds
	~~~
	Clarity and brevity sometimes are at odds.
	When they are, I choose clarity.
	-- Jacob Kaplan-Moss

	<?php
	function get_ip_address() {
	$ip_keys = array('HTTP_CLIENT_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED', 'REMOTE_ADDR');
	foreach ($ip_keys as $key) {
	if (array_key_exists($key, $_SERVER) === true) {
	foreach (explode(',', $_SERVER[$key]) as $ip) {
	// trim for safety measures
	$ip = trim($ip);
	// attempt to validate IP
	if (validate_ip($ip)) {