vpn protocols

From: http://blog.jobbole.com/74795/ Some time ago I made a development, involving network programming, and the development process was quite smooth, but I always felt a bit confused after the task was completed. The main reason is that you are not familiar with network protocols and are not clear about some concepts. Later, I spent some time learning about these network protocols. Now I have a preliminary

Objective-C Protocols, objective-c Objective-C Protocols 1.1 Formal Protocols A formal protocol (like an informal protocol) is a named list of methods and properties. Formal protocol (like informal protocol) is a list of names of a series of methods and attributes. However, a formal protocol requires that you explicitly adopt it. Formal protocol requires you to e

Common network protocols in browsers In fact, browsers need to deal with various network protocols to complete various WEB application functions. HTTP is only one of them. This article describes common network protocols in browsers and their relationships. We often hear the term "TCP/IP protocol". Literally, some people think that it refers to both TCP and IP

There was no clear concept of open-source protocols before, and I always thought that open-source is free or even free of charge. I spent a day reading open-source protocols a few days ago. Common Open Source protocol analysis Let's have a look at 'open source! Common Open Source protocols Sun shot GPL open source Protocol Open source protocol list I also read so

Network protocols are the foundation of the Internet. Therefore, we need to understand network protocols in many ways and from multiple perspectives. Because of the large number of network protocols, each protocol has its own functions and functions. Next we will introduce several key network protocols. Key network

open communication network. It introduces the connection mode in a connectionless network, this reduces network complexity and is compatible with various mainstream network technologies, greatly reducing network costs while improving IP service performance, it ensures the service quality of network communication and the security of data transmission. The combination of multicast technology and mpls vpn technology will provide operators with an unprec

VPN technology: GREGRE is a lightweight tunnel protocol developed by Cisco. It can encapsulate various network layer protocols into an IP package and create a virtual point-to-point link through a tunnel, connect the two routers for data transmission. GRE itself is not encrypted, but IPSEC can be used to protect data in GRE, that is, GRE Over IPSEC. Our commonly used DMVPN is also a type of GRE. Encapsulati

connections and various options. 6) Access to Phppcntl RPM--instalgetphp-pcntl php-pcntl-4.3.8-1.i386.rpm It helps the GUI work. 7 Get PHPGTK Module RPM--install php-gtk-pcntl-1.0.0-2.i386.rpm This file also helps the GUI work. 8) Installation Pptpconfig RPM--install pptpconfig-20040722-0.noarch.rpm This command installs the Point-to-Point Tunneling protocol. This allows the VPN to actually create a tunnel from A to B. VPNs can use two

Follow these steps to configureWindows XPComputer, make itL2TPClient.1. Configure the L2TP dial-up connection: 1) Go to "start", "" Settings ", and" Control Panel "of Windows XP, and select" switch to category View ". 2) Select "network and Internet connection ". 3) Select "create a network connection for your work location ". 4) Select "Virtual Private Network Connection" and click "Next ". 5) Enter "L2TP" for the connection and click "Next ".6) Select "Do not dial this initial connection" and

It takes many attempts to eliminate the router VPN fault in a moment. The following is a reply from a netizen. I hope you can give it a try. It is a common method to help fans. Take the opportunity to provide it to you. ◆ Router VPN troubleshooting: VPN is a secure connection between two networks over the Internet, for example, connecting a home network and an o

a MPSL VPN system for the company in Beijing, Shanghai, Guangzhou, Fuzhou and other places in 11 offices to provide MPLS VPN access services. Hu Xiangdong introduced the program, including local access, remote access and regional center, such as the typical access mode. After the project project through acceptance, Tatsu group will realize the internal network seamless connection, has a fast and secure net

Q: What are the NetBEUI and IPX/SPX TCP/IP protocols ?? In particular, the first two are sometimes installed, and sometimes they are not installed. Why ?? What are their differences and uniqueness? When must I install it? A: A lot of netizens asked this question. I have consulted and integrated the relevant information here to give you a detailed explanation. The network Protocol is a special software and the most basic mechanism for a computer networ

Which Address Resolution Protocol (ARP) Address Resolution protocols are commonly used to map the physical Address of a computer and the network Address temporarily specified. At startup, it selects a protocol (Network Layer) Address and checks whether the address has been used by another computer. If it is not used, this node is used, if this address has been used by another computer, the computer that is using this address will advertise this inform

Next-generation protocols related to IPv6 are in the TCP/IP protocol set. Protocols that are directly active and indirectly interoperable with IP addresses include various application layer protocols, connection protocols, and TCP and UDP. This chapter will discuss the impact of IPv6 on other layer

Simple text protocol and binary protocol write network programs cannot hide the Protocol. The Protocol actually defines the Message format and how messages are exchanged. The protocol can be simple, complex, and sophisticated, such as the TCP protocol, and simple and unrestrained, such as the HTTP protocol. Here, I will summarize the protocols I have come into use, and finally throw out simple and common text prot