wynemo

# in /etc/sysctl.conf

# net.ipv4.ip_forward=1

echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A FORWARD -s 10.8.0.0/24 -j ACCEPT
iptables -A FORWARD -j REJECT
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE

aweimeow

from ryu.base import app_manager
from ryu.controller import ofp_event
from ryu.controller.handler import CONFIG_DISPATCHER, MAIN_DISPATCHER
from ryu.controller.handler import set_ev_cls
from ryu.ofproto import ofproto_v1_3
from ryu.lib.packet import packet
from ryu.lib.packet import ethernet


class SimpleSwitch13(app_manager.RyuApp):

windwiny

----

Linux 基于策略的路由(Linux Policy Routing)

Linux 有传统的基于数据包目的地址的路由算法，和新的基于策略的路由算法
新算法优点：支持多个路由表，支持按数据报属性（源地址、目的地址、协议、端口、数据包大小、内容等）选择不同路由表


# 查看规则命令，后面可跟其它参数，默认为 show(list) 显示全部
ip rule

GuoJing

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef int heap_elem_t;

typedef struct heap_t
{
    int size;
    int capacity;

Embedded-linux

#include <stdio.h>
int main()
{
  int s,temp,i,j,a[20];
	
	printf("Enter total no. of elements:");
	scanf("%d",&s);
	
	printf("Enter %d elements:",s);
	for(i=0;i<s;i++)

ustbgaofan

# -*- coding: utf8 -*-

# 下载速度很慢，
import urllib2, urllib
import sys
import os
import socket
import re

import socks

ustbgaofan

Sublime Text 2 – Useful Shortcuts (Windows)

General

Ctrl+KB	toggle side bar
Ctrl+Shift+P	command prompt
Ctrl+`	python console
Ctrl+N	new file

Editing

ustbgaofan

#!/bin/sh
SHORTCUT="[Desktop Entry]
Name=Sublime Text 2
Comment=Edit text files
Exec=/usr/local/sublime-text-2/sublime_text
Icon=/usr/local/sublime-text-2/Icon/128x128/sublime_text.png
Terminal=false
Type=Application
Encoding=UTF-8
Categories=Utility;TextEditor;"

dkd903

#!/bin/sh
SHORTCUT="[Desktop Entry]
Name=Sublime Text 2
Comment=Edit text files
Exec=/usr/local/sublime-text-2/sublime_text
Icon=/usr/local/sublime-text-2/Icon/128x128/sublime_text.png
Terminal=false
Type=Application
Encoding=UTF-8
Categories=Utility;TextEditor;"

DamienCassou

#! /usr/bin/env bash

# Author: Damien Cassou
#
# This is the script I use to build Emacs packages for Ubuntu. These
# packages are uploaded to
# https://launchpad.net/~cassou/+archive/emacs/. Each package is
# either build from a Debian package or from
# http://emacs.naquadah.org/.