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[Firewall-Security] 端口映射及TCP转发软件源代码

Description:

端口映射

PortTransfer_三种模式。
(1) PortTransfer Port Dest_IP Port
在运行本程序的计算机上监听Port端口，并将所有连接请求转到Dest_IP的Port去
(2) PortTransfer ctrlIP ctrlPort Dest_IP Port
和模式3配合用，程序将先主动连接ctrlIP:ctrlPort,之后所有在模式3的ServerPort端口的请求转到Dest_IP:Port去
(3) PortTransfer ctrlPort ServerPort
在执行模式2前先执行，将监听ctrlPort和ServerPort 端口,ctrlPort供模式2使用，ServerPort提供服务.

模式1适合在网关上运行，将内网IP的端口映射到网关上，
如：PortTransfer 88 192.168.0.110 80
那么网关将开启88端口，所有在88端口的请求将转到内网的192.168.0.110的80端口

模式2和模式3联合使用可以将内网的IP和端口映射到指定的IP和端口上，
一般在公网IP(假设61.1.1.1)上执行模式3，如：PortTransfer 99 80, 80是映射过来的端口
内网用户执行模式2如：PortTransfer 61.1.1.1 99 127.0.0.1 80，
那么程序在内网将先连接61.1.1.1:99建立个连接，并等待接收命令。

之后当61.1.1.1的80端口有请求，将通过99端口命令内网机子和公网机子建立条新的数据连接，
并将请求通过新建的连接将请求转发到内网机.

最后更新:2007.8.31 By DSSZ

最新更改了模3,接收到新连接接令后,不再创建新的临时端口,避免中转服务器有防火墙,临时端口连接不上的情况!
可参看 PortTransfer_3 的修改部分,在transport_old.cpp里面


Platform: | Size: 15570 | Author: testbs | Hits:

[WinSock-NDIS] TCP连接攻击

Description: 一个通过TCP连接过多睹塞80端口的攻击器代码-one too many connections through TCP port 80 to see a Serbian attack on the code
Platform: | Size: 36538 | Author: 深刻机 | Hits:

[Linux-Unix] http

Description: 在PXA270开发板上实现WEB服务器。 在主程序中建立TCP类型SOCKET在80端口进行监听连接请求。
Platform: | Size: 50154 | Author: 徐亚雪 | Hits:

[WEB Code] 端口可分为3大类

Description: 端口基础常识大全 端口可分为3大类： 1） 公认端口（Well Known Ports）：从0到1023，它们紧密绑定于一些服务。通常这些端口的通讯明确表明了某种服务的协议。例如：80端口实际上总是HTTP通讯。 2） 注册端口（Registered Ports）：从1024到49151。它们松散地绑定于一些服务。也就是说有许多服务绑定于这些端口，这些端口同样用于许多其它目的。例如：许多系统处理动态端口从1024左右开始。 3） 动态和/或私有端口（Dynamic and/or Private Ports）：从49152到65535。理论上，不应为服务分配这些端口。实际上，机器通常从1024起分配动态端口。但也有例外：SUN的RPC端口从32768开始。 本节讲述通常TCP/UDP端口扫描在防火墙记录中的信息。记住：并不存在所谓ICMP端口。如果你对解读ICMP数据感兴趣，请参看本文的其它部分。-port basis of common sense Daquan ports can be divided into three broad categories : a) recognized ports (Well Known Ports) : 0-1023, which closely bundled with some of these services. These ports are usually clear communication of a service agreement. For example : 80-port virtually always HTTP communications. 2) Registered port (Registered Ports) : from 1,024 to 49,151. They loosely bundled with some of these services. That is to say there are many services bundled with these ports for the same used for many other purposes. For example : Many systems dynamic port from around 1024. 3) Dynamic and / or private ports (Dynamic and / or Private Ports) : from 49,152 to 65,535. Theoretically, should not be allocated to these ports. In fact, the machines are usually from 1024 onwards dynamic por
Platform: | Size: 8133 | Author: 何问宇 | Hits:

[Internet-Network] TCP连接攻击

Description: 一个通过TCP连接过多睹塞80端口的攻击器代码-one too many connections through TCP port 80 to see a Serbian attack on the code
Platform: | Size: 35840 | Author: 深刻机 | Hits:

[SCM] http

Description: 在PXA270开发板上实现WEB服务器。 在主程序中建立TCP类型SOCKET在80端口进行监听连接请求。-PXA270 development board realize in the WEB server. In the main program to create a TCP type SOCKET listening on port 80 connection requests.
Platform: | Size: 50176 | Author: 徐亚雪 | Hits:

[Delphi VCL] DelphiDemo

Description: TCPServer(IOCPServer) Socket 大容量网络服务器解决方案 大容量网络服务器解决方案，可达到每服务器支持超多8万人在线（保持8万个以上的TCP长连接）-TCPServer (IOCPServer) Socket large capacity network server solutions for large-capacity network server solution that can reach every server to support more than 8 million people in super-line (to keep more than 80,000 long TCP connection)
Platform: | Size: 276480 | Author: z7788321 | Hits:

[source in ebook] snmp

Description: 编写snmp信息刺探工具 前置知识：winsock 难度： 中 编译环境：VC6.0＋win2000 －、前置知识 SNMP 网络管理的历史 美国国防部设计了世界上头几个包交换网之一的ARPANET，在70年代，TCP/IP协议族正式被定为军方通信标准，随着此协议的广泛使用，网络管理成了一件大事。在80年代未和90年代初，网络迅速发展，许多子网数目的增多使监视网络活动成为一种必须 -Write the SNMP information spying tools Knowledge: winsock incremented Difficulty: Compile environment: VC6.0+ win2000 - and lead knowledge The SNMP management network of history U.S. defense design the world above the NCP one of several packet networks, in the 1970s, the TCP/IP protocol families will be officially designated the military communication standard, with the widespread use of this agreement, network management has become a great thing. In the 1980s and 1990s, the rapid development of network, and many more subnet Numbers to monitor network has become a must
Platform: | Size: 2048 | Author: xushuang | Hits:

[Internet-Network] sting.tar

Description: sting 一个基于TCP的网络测量工具，可以设定远程IP 端口号，测量线程的RTT和丢包率-Here is the output from a sample session: [savage1]# ./sting www.cnn.com Connection setup took 80 ms src = 128.95.219.227:10241 (1753156211) dst = 207.25.71.25:80 (347132509) dataSent = 100, dataReceived = 100 acksSent = 100, acksReceived = 100 Forward loss rate = 0.000000 Reverse loss rate = 0.000000 634 packets received by filter 0 packets dropped by kernel
Platform: | Size: 143360 | Author: fuyizheng | Hits:

[Communication] 5_p2pFile

Description: 类似ＱＱ文件传输的模块、组件，是ActiveX 控件由Vc++工发，提供CSharp、VB示例代码。 类似ＱＱ文件传输的模块，支持２个用户互发文件，支持公网与内网传输 自动识别内外网，若同一内网，速度可达数兆每秒 除非人为封堵，否则可以穿越 100 防火墙 使用P2P方式传输，80 数据不通过服务器，极大减轻服务器压力。在公网中速度一般在5KB至200KB之间，与网络速度有关 传输文件大小小于2G 支持断点续传 同时支持ＵＤＰ和ＴＣＰ传输，可自动智能选择ＵＤＰ或者ＴＣＰ传输方式。 UDP传输使用了网络适应算法，使速度最佳 支持自定义界面-P2P File Transfer ActiveX component, send file to peer, UDP and TCP surport, fast speed and easy use ActiveX componet.
Platform: | Size: 600064 | Author: 刘宝 | Hits:

[e-language] tcpserver

Description: 这个程序使用易语言和Windows中的TCP连接，创建一个Windows窗口过程。这项计划只是为了验证基于TCP连接，使用简单的语言服务器的B / S的连接模式，建立和支持的HTML。请关闭该程序占用80端口在使用过程中，如：任何系列雷霆，IIS1.0-7.5，ASPMAO调试服务器，NETBOX调试服务器，和其他应用程序占用80端口。-This program uses easy language and WINDOWS TCP connection to create a WINDOWS window procedure. This program is only to verify that the B/S connection mode based on the TCP connection, using easy language server build and to support the html. Please close the program occupying port 80 during use, such as: any of a series Thunder, IIS1.0-7.5, ASPMAO debug server, NETBOX debug server, and other applications take up to 80 ports.
Platform: | Size: 8192 | Author: 12 | Hits:

[ARM-PowerPC-ColdFire-MIPS] LPC176x-web

Description: keil 源文件，包含tcpip协议栈,easyweb sever-This project is migrated from Keil MCB1700 Demo code. It can run at Keil MCB1700 board with LPC17xx. Example functionality: - Clock Settings: - XTAL = 12 MHz - PLL0 = 288 MHz - CCLK = 72 MHz Due to a bug in the LPC175x family(80 pin package) that MDIO and MDC are not functioning correctly. A bit-banging on the MDIO and MDC are included in the driver. Setting MDC_MDIO_WORKAROUND to 1 will enable the bit-banging in both MDC and MDIO. For board euipped with 80-pin LPC175x, some jumper setting is necessary for EasyWEB demo. Close "E/U" jumper(near USB Device/Host) on 2 and 3. Close "E/C" jumper(Near CAN connector) on 2 and 3. The web page shows the values of analog input(AN2). This tiny webserver needs very little resources and therefore has some restrictions: - only one active TCP session at any one time - no support for fragmented IP datagrams - no buffer for TCP datagrams received in
Platform: | Size: 346112 | Author: evan | Hits:

[Chess Poker games] PlayCard

Description: 棋牌游戏大厅简介：网络大厅+ 桥牌 8000行代码 1 基于C# TCP Socket异步通讯 多线程 开发 2 近60个自定义通信协议 使用了序列化技术 传输byte流 3 二级代理技术 开始打牌后，指定其中一人为ProxyServer，打开Socket， 承担与其他三人打牌逻辑的判断，打牌结束后由其负责通知主Server 实现了均衡负载，让Server负担大幅度减轻 4 在Server端 将连接方存入哈希表，这样Server想发信息给谁 都可以点对点发送 5 主裁和边裁的设定 分别在CLient和Server端验证 6 Flyweight模式画 手中的牌 7 Observer模式 负责窗体间的通讯 8 由于是在一台机器上开发， 所以用同一IP不同端口来模拟 不同IP的玩家，所以要略作修改才可以实现不同IP的玩家进入大厅 未完成 （时间来不及 要去找工作了） 1 出过的牌 显示： 数据已经准备好 就差表现出来 2 分数的显示：数据已经准备好 就差表现出来 3 界面的美化 由其是排版 4 用Strategy 实现 拱猪/桥牌/80分 的不同玩法 甚至是棋牌的不同玩法 5 强制退出游戏的处理 6 CardControl的闪烁问题-Chess game lobby Introduction: Network the hall+ Bridge 8000 lines of code C# TCP Socket asynchronous communication-based multi-threaded development 2 60 custom communication protocol the serialization technology transfer byte flow 3 two agents began to play cards, to appoint one of them ProxyServer, open the Socket Bear the judgment of the logic with the other three playing cards, playing cards after who will notify the main Server load balancing Server substantially relieve the burden Server side connected party memory into the hash table, so that Server would like to send a message to everyone can be point-to-point transmission 5 referee and linesman set verified in CLient and Server-side 6 Flyweight mode painting hand is 7 Observer mode is responsible for communication between the form 8 is to develop a machine to simulate different IP different port with the same IP players, so the slightly modified before they can achieve different IP players entered the hall Unfini
Platform: | Size: 1311744 | Author: 油儿饭 | Hits:

[Internet-Network] web

Description: 实验4 Web服务器（多线程，可以多个浏览器访问多个不同文件） 要求：（1）TCP （2）C/S （3）http 摘要：设计一个简单的web服务器，它仅能处理一个请求。 具体： Web服务器： 当一个客户（浏览器,输入URL：http://127.0.0.1/index.html）连接时创建一个连接套接字； 从连接套接字接收http请求报文。 解释该请求以确定所请求的文件（解析文件名）； 从服务器的文件系统获得请求的文件。 创建一个由请求的文件组成的http响应报文。（报文包含状态行+实体体）。 经TCP连接想请求的浏览器发送响应。如果浏览器请求的文件不在服务器，服务器返回“404 Not Found”差错报文。 注意：1)如果80端口已经被其他进程占用，服务器端口改为5050。则浏览器输入的URL：http://127.0.0.1:5050/index.html-Experiment 4 Web server Requirements: (1) TCP             (2) C/S             (3) http Abstract: The design of a simple web server, it can handle only one request. Specifically: Web server: Create a connection socket connection When a client (//127.0.0.1/index.html browser, enter the URL:: http) Http request message is received the connection socket. Interpret the request to determine the requested file (file name parsing) Access to documents requested the server s file system. Create a document requested by the composition of http response packets. (Packet contains a status line+ solid body). After TCP connection would like to request the browser sends a response. If the file is not in the server browser requests, the server returns 404 Not Found error message. Note: 1) If port 80 is already in use by another process server port to 5050. Enter the URL of your browser: http: //127.0.0.1: 5050/index.html
Platform: | Size: 1207296 | Author: 刘强 | Hits:

[SCM] ENC28J60Experiment

Description: 本实验将实现如下功能：开机检测ENC28J60，如果检测不成功，则提示报错。在成功检测到ENC28J60之后，初始化uIP，并设置IP地址（192.168.1.16）等，然后监听80端口和1200端口，并尝试连接远程1400端口，80端口用于实现WEB Server功能，1200端口用于实现TCP Server功能，连接1400端口实现TCP Client功能。此时，我们在电脑浏览器输入http://192.168.1.16 ，就可以登录到一个界面，该界面可以控制开发板上两个LED灯的亮灭，还会显示开发板的当前时间以及开发板STM32芯片的温度（每10秒自动刷新一次）。另外，我们通过网络调试软件（做TCP Server时，设置IP地址为：192.168.1.103，端口为1400；做TCP Client时，设置IP地址为：192.168.1.16，端口为1200）同开发板连接，即可实现开发板与网络调试软件之间的数据互发。按KEY0，由开发板的TCP Server端发送数据到电脑的TCP Client端。按KEY2，则由开发板的TCP Client端发送数据到电脑的TCP Server端。LCD显示当前连接状态。-The experiment will achieve the following functions: start testing ENC28J60, if the test was not successful, the system prompts error. After successfully detected ENC28J60, initialize uIP, and set the IP address (192.168.1.16), etc., and then listens on port 80 and port 1200, and attempts to connect to the remote 1400 port, 80 port is used for WEB Server functions, 1200 port is used for TCP Server function, connecting ports 1400 TCP Client function. At this point, we enter in the computer browser http://192.168.1.16, you can log in to an interface that can control the development board two bright LED lights off, also displays the current time and the development board development board STM32 chip temperature (automatically refresh every 10 seconds). In addition, we network debugging software (do TCP Server, set the IP address is: 192.168.1.103, port is 1400 do TCP Client, set the IP address is: 192.168.1.16, port 1200) with the development board, namely Boards and can achieve data int
Platform: | Size: 1243136 | Author: 夜辰 | Hits:

[Software Engineering] W5500 Datasheet

Description: The W5500 chip is a Hardwired TCP/IP embedded Ethernet controller that provides easier Internet connection to embedded systems. W5500 enables users to have the Internet connectivity in their applications just by using the single chip in which TCP/IP stack, 10/100 Ethernet MAC and PHY embedded. WIZnet‘s Hardwired TCP/IP is the market-proven technology that supports TCP, UDP, IPv4, ICMP, ARP, IGMP, and PPPoE protocols. W5500 embeds the 32Kbyte internal memory buffer for the Ethernet packet processing. If you use W5500, you can implement the Ethernet application just by adding the simple socket program. It’s faster and easier way rather than using any other Embedded Ethernet solution. Users can use 8 independent hardware sockets simultaneously. SPI (Serial Peripheral Interface) is provided for easy integration with the external MCU. The W5500’s SPI supports 80 MHz speed and new efficient SPI protocol for the high speed network communication. In order to reduce power consumption of the system, W5500 provides WOL (Wake on LAN) and power down mode.
Platform: | Size: 1492601 | Author: bezr41@gmail.com | Hits:

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