2017/05/13

如何发现Google的所有 IP地址 / howto discover all the IP addresses of Google

Google 其实自己告诉你了，  只不过你需要掌握正确的方法来获取。

  1. nslookup
    使用DNS 查询工具
  2. set server 8.8.8.8
    设置 使用google的 Public DNS 服务器
  3. set type=txt
    查询 TXT 字段
  4. google.com
    查询 google.com
  5.  _spf.google.com
    查询 网段信息
  6. _netblocks.google.com

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2017/04/13

Emmet for Vim

Emmet for Vim - 用 Vim 开发 HTML CSS 前端的必备工具。 大幅度提高生产效率。
缺省的展开键是:
先按   CTRL-y  再按  ,  
当然也可以通过修改: 
let g:user_emmet_expandabbr_key = ''
自行修改为 CTRL-e 或者 指定其他按键！
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2017/04/05

我的最新的 VIMRC 文件， 备份自用！ 

source $VIMRUNTIME/vimrc_example.vim
source $VIMRUNTIME/gvimrc_example.vim
filetype off                 " required before add more bundles
set rtp+=$VIM/rust.vim
filetype plugin indent on    " required

" Don't need ugly files
set nobackup
set noundofile

" Other settings
set ruler
set number
set wildmenu
set showcmd
set laststatus=2
set cmdheight=1

" Tab/Space related
set expandtab
set tabstop=4
set shiftwidth=4
set softtabstop=4

"colorscheme oceandeep
colorscheme evening

if has("multi_byte")
  set encoding=utf-8
  "let &termencoding = &encoding
  set termencoding=unicode
  " Set default encoding as UTF-8 with BOM
  setglobal fileencoding=utf-8 "bomb "bomb introduce problem for *nix
  set fileencodings=ucs-bom,utf-8,gb18030,cp936,cp950,latin1
  " Walkaround the encoding problem for fenc=utf-8 && enc=ucs-2
  augroup i18n
      autocmd!
      autocmd BufReadPost * if &fileencoding == "utf-8" | let &encoding = &fileencoding | endif
  augroup END
endif

" Enable the Chinese characters
set guifont=Consolas:h11:cANSI,NSimSun:h12:cGB2312
set guifontwide=NSimSun:h12:cGB2312

" IME 
if has('multi_byte_ime')
 "未开启IME时光标背景色
 hi Cursor guifg=bg guibg=Orange gui=NONE
 "开启IME时光标背景色
 hi CursorIM guifg=NONE guibg=Skyblue gui=NONE
 " 关闭Vim的自动切换IME输入法(插入模式和检索模式)
 set iminsert=0 imsearch=0 
 " 插入模式输入法状态未被记录时，默认关闭IME
 inoremap   :set iminsert=0
endif

" Set the swap file location
set dir=c:\\temp

" display the syntax name under the cursor
map  :echo synIDattr(synIDtrans(synID(line("."), col("."), 1)), "name")

" We can navigate the list by using the  and 
map  :cnext
map  :cprevious

" Let's help the tab navigation a little
map  :tabprevious
map  :tabnext

" Tlist
map  :Tlist
set tags=./tags,../tags,../../tags,../../../tags
set path+=./,../,../../,../../../

" 设定 windows 下 gvim 启动时最大化
"if has("gui_running")
"    if has("win32")
"        autocmd GUIEnter * simalt ~x
"    endif
"endif
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2017/02/21

Add syntax highlight for your code in blogspot.com

There a lots of JavaScript syntax highlight library available, I chose highlight.js which is quite simple and straight forward in my view; and easy enough to put into your blogspot.com.
Here is the steps:
Edit your blog's template HTML by paste following codes before the </head> 

    <link href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.9.0/styles/railscasts.min.css" rel="stylesheet"></link>
    <script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.9.0/highlight.min.js"></script>
    <script>hljs.initHighlightingOnLoad();</script>

For your blog poster, use 

<pre><code class="lang">code in lang ...</code></pre>

This is using the default language packs of highlight.js which support most common languages:
  • Apache 
  • Bash 
  • C# 
  • C++ 
  • CSS 
  • CoffeeScript 
  • Diff 
  • HTML
  • XML 
  • HTTP 
  • Ini 
  • JSON 
  • Java 
  • JavaScript 
  • Makefile 
  • Markdown 
  • Nginx 
  • Objective-C 
  • PHP 
  • Perl 
  • Python 
  • Ruby 
  • SQL

and railscasts color scheme. you can goto https://highlighjs.org to find more language and color scheme.

It is pretty simple, isn't it?
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$5 VPS 对比

英文原文:  https://joshtronic.com/2017/02/14/five-dollar-showdown-linode-vs-digitalocean-vs-lightsaild-vs-vultr/  
中文摘要:  http://www.appinn.com/compare-linode-vs-digitalocean-vs-lightsail-vs-vultr/

对比了四家大牌 VPS 服务商

这四家服务器分别是：
对比了8个方面的性能； 最后， 推荐度为 Linode > DigitalOcean / Vultr > Amazon Lightsail。 现在 buyvm 的VPS也用了好几年了，是不是要考虑换换呢？

补充

看了原文下面的评论， 提到了 https://www.ovh.com/us/vps/ OVH VPN 看起来也不错。
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2017/02/13

Google Chrome 必将统治桌面应用

微软的桌面版 Power BI 也是基于CEF开发的!
Windows统治客户端的年代 在Web大潮涌动近20年之后 几近结束。
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2017/01/07

中国教育网 DNS 服务器列表

http://www.dnsdizhi.com/edudns.html

好网站，值得收藏！
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2017/01/02

Perl script to convert to x Based String 


#/usr/bin/perl

use strict;
use warnings;
use constant DIV => 24;


my $v = shift or die "Usage: $0 ";

my $d = 0;
my $str = '';

do {
    my $c = chr(ord('A') + ($v % DIV));
    $str = $c . $str;
    $v = int($v / DIV)
} while ($v > 0);

print $str;

0;
时间： 没有评论:

2015/12/19

Easy way to prevent from GFW DNS abusing

The easiest way to distinguish the GFW DNS abusing result from real DNS responses is using iptables to block the dummy DNS response by GFW

# iptables -t mangle -I PREROUTING -s 8.8.8.8/16 -m ttl --ttl-gt 63 -j DROP
# ip6tables -t mangle -I PREROUTING -s 2001:4860:4860::8844/112 -m hl --hl-gt 52 -j DROP

时间： 2 条评论:
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2013/10/31

第一次在iPad上写blog

我儿子的读物
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2013/09/04

VS2013 值得期待!

VS2013 值得期待! C++ 开发性能进一步提高！
时间： 没有评论:

2013/03/18

Lenovo LePad A1 and A1107 Unbrick fix/full factory restore

A1 and A1107 Unbrick fix/full factory restore
时间： 没有评论:

2013/01/26

PHP5 FastCGI init.d scriipt for Debian/Ubuntu

Recently, I am using Nginx + PHP5 FastCGI as the new web platform. I really need a init.d script for PHP5 FastCGI. It is not so difficult according to the skeleton.

First of all, make sure to install php5-cgi and spawn-fcgi.

sudo apt-get install php5-cgi spawn-fcgi
Second, create the /etc/init.d/php-fastcgi script, as below:

#!/bin/sh
### BEGIN INIT INFO
# Provides:          php-fastcgi
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: PHP5 FastCGI mode
# Description:       This file should be used to construct scripts to be
#                    placed in /etc/init.d.
### END INIT INFO

# Author: Yi Zhao

# Do NOT "set -e"

# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="PHP5 FastCGI Service"
NAME=php5-cgi
FASTCGI_USER=www-data
FASTCGI_GROUP=www-data
SOCKET=/var/run/php-fastcgi.sock
PHP5=/usr/bin/php5-cgi
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME
CHILDREN=2
DAEMON=/usr/bin/spawn-fcgi
DAEMON_ARGS="-s $SOCKET -C $CHILDREN -P $PIDFILE -u $FASTCGI_USER -g $FASTCGI_GROUP -f $PHP5"

# Exit if the package is not installed
[ -x "$DAEMON" -a -x "$PHP5" ] || exit 0

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

# Load the VERBOSE setting and other rcS variables
#. /lib/init/vars.sh

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
# and status_of_proc is working.
. /lib/lsb/init-functions

#
# Function that starts the daemon/service
#
do_start()
{
        # Return
        #   0 if daemon has been started
        #   1 if daemon was already running
        #   2 if daemon could not be started
        start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
                || return 1
        start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON -- \
                $DAEMON_ARGS \
                || return 2
        # Add code here, if necessary, that waits for the process to be ready
        # to handle requests from services started subsequently which depend
        # on this one.  As a last resort, sleep for some time.
}

#
# Function that stops the daemon/service
#
do_stop()
{
        # Return
        #   0 if daemon has been stopped
        #   1 if daemon was already stopped
        #   2 if daemon could not be stopped
        #   other if a failure occurred
        start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
        RETVAL="$?"
        [ "$RETVAL" = 2 ] && return 2
        # Wait for children to finish too if this is a daemon that forks
        # and if the daemon is only ever run from this initscript.
        # If the above conditions are not satisfied then add some other code
        # that waits for the process to drop all resources that could be
        # needed by services started subsequently.  A last resort is to
        # sleep for some time.
        start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --name $NAME
        [ "$?" = 2 ] && return 2
        # Many daemons don't delete their pidfiles when they exit.
        rm -f $PIDFILE
        return "$RETVAL"
}

#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
        #
        # If the daemon can reload its configuration without
        # restarting (for example, when it is sent a SIGHUP),
        # then implement that here.
        #
        start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $NAME
        return 0
}

case "$1" in
  start)
        [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
        do_start
        case "$?" in
                0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
                2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
        esac
        ;;
  stop)
        [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
        do_stop
        case "$?" in
                0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
                2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
        esac
        ;;
  status)
       status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
       ;;
  #reload|force-reload)
        #
        # If do_reload() is not implemented then leave this commented out
        # and leave 'force-reload' as an alias for 'restart'.
        #
        #log_daemon_msg "Reloading $DESC" "$NAME"
        #do_reload
        #log_end_msg $?
        #;;
  restart|force-reload)
        #
        # If the "reload" option is implemented then remove the
        # 'force-reload' alias
        #
        log_daemon_msg "Restarting $DESC" "$NAME"
        do_stop
        case "$?" in
          0|1)
                do_start
                case "$?" in
                        0) log_end_msg 0 ;;
                        1) log_end_msg 1 ;; # Old process is still running
                        *) log_end_msg 1 ;; # Failed to start
                esac
                ;;
          *)
                # Failed to stop
                log_end_msg 1
                ;;
        esac
        ;;
  *)
        #echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
        echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
        exit 3
        ;;
esac

:
Add php-fastcgi into the start list

sudo update-rc.d php-fastcgi default
this will start for init level 2,3,4,5
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2012/04/12

Firefox 免插件 发 新浪 weibo 大法


Firefox 具有 Smart Keywords这个功能。她让我们可以 定义一个关键字 并用这个关键字来标示一个特定的网址。 利用这个功能，我们实际上可以做很多有趣的事情，比如发Sina围脖。 具体步骤如下：

  1. 使用 Firefox
  2. 打开 baidu.com 在搜索框上点右键
  3. 点 "Add Keyword for this Search..."
  4. 这时会弹出一个对话框, 在 "Name" 项输入 "sina weibo" 其实输入什么都可以， “keyword" 可以选 wb
  5. 然后保存
  6. 用 bookmark manager 打开这个新建的 Smart Keyword， 打开 properties 属性 对话框。然后在 “Location” 里面输入 下面的代码：
javascript:(function(){f='http://v.t.sina.com.cn/share/share.php?url='+encodeURIComponent(window.location.href)+'&title=%s';a=function(){if(!window.open(f,'location=yes,links=no,scrollbars=no,toolbar=no,width=550,height=550'))location.href=f};if(/Firefox/.test(navigator.userAgent)){setTimeout(a,0)}else{a()}})()

这就全部搞定了！  今后 在任何一个网页， 你只要切换到Address Bar。 可以用Ctrl+D/Ctrl+L 快速切换。 然后输入：  wb 任何你想输入的文字。 回车， 这就会打开一个新的窗口/tab 提示你 围脖的内容。Over！
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2011/05/06

How to create a MS Windows local account by program

There are several ways to make it happen:
  1. PowerShell solution: http://stackoverflow.com/questions/383390/create-local-user-with-powershell-windows-vista
  2. .Net solution: http://msdn.microsoft.com/en-us/library/bb384369.aspx#Y200
  3. Using Active Directory Service Interfaces (ADSI) COM: http://msdn.microsoft.com/en-us/library/aa705985(v=vs.85).aspx
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2011/04/22

Pointers to class member functions are always interesting

This FAQ show us lot of interesting things.
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2011/04/20

Celerbrate my StackOverflow.com account get over 2000 reputations

费尽九牛二虎之力 终于让我在StackOverflow的账号reputation 过了2000!
时间： 没有评论:
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2011/02/28

List of freely available programming books

Meta-List

Graphics Programming

Language Agnostic:

ASP.NET MVC:

Assembly Language:

Bash

C/C++

C#

  • See .NET below

Django

Erlang

F#

Forth

Git

Grails - Getting Start with Grails

Haskell

HTML

Java

JavaScript

Linux

Lisp

Lua

Maven

Mercurial

.NET (C#)

NoSQL

Objective-C

Oracle Server

Oracle PL/SQL

Parrot / Perl 6

Perl

PHP

PowerShell

Prolog

PostgreSQL

Python

Ruby

Scala

Scheme

Smalltalk

Subversion

SQL (Implementation agnostic)

Vim

时间： 1 条评论:
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2011/01/28

Access Ubuntu GPG Keyserver behind restrict firewall

Ubuntu PPA is a very good apt source-list expansion mechanism, but it requires to install new GPG public key for the PPA repository. It isn't a big problem for user without a restrict firewall.

ubuntu keyserver is using standard GPG keyserver port keyserver.ubuntu.com:11371. It will be blocked by restrict firewall. While Ubuntu.com has enable the 80 on the keyserver, we should add some options to let gpg to use hkp:80 to access the keyserver.


For my example,
gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver hkp://keyserver.ubuntu.com:80 --keyserver-options http-proxy=http://webproxy.yourdomain.com:80 --recv 36E81C9267FD1383FCC4490983FBA1751378B444


We will be able to retrieve the GPG key through restrict firewall. :)
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2010/10/18

A shell script to extract JDK/JRE .pack files using shell 

#!/bin/sh

if [ ! -x $1/bin/unpack200 ];then
    echo "Usage: $0 <java_home_dir>"
    exit 1
fi

for i in `find $1 -name '*.pack'`;do
    echo $i
    $1/bin/unpack200.exe $i ${i/%.pack/.jar}
    rm -f $i
done
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BlockChain 相关电子书

@copyright of Sam Chadwick   - https://thehub.thomsonreuters.com/groups/bitcoin/blog/2017/09/10/blockchain-paper Blockchain Papers A c...