How To Do Tunneling

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Ping crossings 0.72 The TCP connection tool that publishes tunneling effects

Ping crossings is a reliable tunneling-effect TCP connection tool that connects to remote hosts via ICMP echo request and answer packets, commonly known as ping requests and replies. It is useful to circumvent firewalls, for whatever reason, to prevent outgoing TCP connections, but to allow incoming and outgoing ICMP packets. Tunneling is run by TCP access on the local computer that is able to run a proxy client from one machine inside the firewall. Ping crossings version Fixes a verified bug. This version is further repaired ...

Two modes of IPSec: Tunneling mode and transport mode

The Ip_security Protocol (IPSEC) is a protocol recommended by the Internet Engineering Task Force (IETF) for IP security. VPN can be realized by the corresponding tunneling technology. There are two modes of IPSec: Tunnel mode and transport mode.    &http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; The IPSec protocol group also includes support for the network layer ...

Load balancing Technology: using 4 Web servers

&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; The concept of clustering is easily confused with concepts (SMP, NUMA, MPP, distributed processing), whose primary difference is in the level at which resources are shared and replicated.   They are arranged by SMP, NUMA, MPP, clustering, and distributed processing from the most compact to the most loosely aligned. Because of the current network of the core parts with ...

Advanced Routing and Traffic Control for Linux: GRE and other tunnels

Linux has 3 kinds of tunnels. They are: IP-in-IP tunnels, GRE tunnels, and non-kernel tunnels (such as PPTP). 1. Some comments about the tunnel tunnel can be used to implement many very unusual and interesting features. But if you have a problem with your configuration, there will be terrible mistakes. Do not point the default route to a tunneling device unless you know exactly what you are doing. Furthermore, the tunneling increases the protocol overhead because it requires an additional IP header. Generally it should be 20 bytes per packet, so if the MTU of a network is 1 ...

Technical explanation of IP virtual private network

IP Virtual Private network is a very complex technology, involving all aspects, the most critical of which is the tunnel technology. Simply put, the virtual private network is actually the data encapsulation of the enterprise network in the tunnel for transmission. Because the tunneling protocol is relatively complex, the virtual private network technology is complicated. The most typical of tunneling protocols are IPSec, L2TP, GRE, PPTP, L2F, and so on. Where GRE, IPSec belongs to the third-tier tunneling protocol, L2TP, PPTP and L2F belong to the second-tier tunneling protocol. The essential difference between the second and third-tier tunnels is that ...

Tsing Qingcloud announces load Balancer private network mode

January 20 News, a few days ago, the foundation cloud service provider Qingyun Qingcloud announced the introduction of Load balancer (LB) of the private network mode and the router's IPSec Cryptographic tunneling service.       It is reported that the private network lb not only allows users to save the public network of IP, thereby saving it expenditure, but also through the private network lb to build more complex network architecture, so that enterprises with the physical world the same IT environment. Load ...

EMC Li Junpeng: tunneling bokhary Data Cloud Platform is the foundation

The challenge of large data has been widely concerned by the industry, and the so-called "http://www.aliyun.com/zixun/aggregation/14294.html" > Large data products have been springing up, At the same time on the big data of the confusion and controversy, which also makes users feel at a loss. A few days ago, EMC Senior product manager Li Junpeng, a large data and storage expert from EMC, was visiting the IT specialist's "guest room" to answer some misconceptions and doubts about big data ...

What is OpenWrt?

What is OpenWrt? It is a Linux distribution that applies to routers. Like other Linux distributions, it also has built-in package management tools that you can install directly from a single software repository.   OpenWrt can be used in all the places where embedded Linux is needed, it has many functions, such as SSH server, VPN, traffic shaping service, even BitTorrent client. OpenWrt is not for everyone. Most people are satisfied with their own router's own firmware, but many advanced users ...

Network industry ready to change

"Editor's note" Network after years of development, has come to the "post-Cisco" era, software definition network, network virtualization and other nouns have come to everyone, this article focuses on the traditional network architecture and SDN network of similarities and differences, the development of network virtualization, you can see, SDN manufacturers are gearing up, because of " We usually overestimate the changes in the next two years, and underestimate the changes that will happen in the next decade ", the traditional enterprises need to actively face the future changes in the network operation, the author from the Network Transformation and technology transformation in two aspects of the network industry in-depth discussion of the ...

VPN server Security Configuration Tips

To adapt to the needs of information and mobile office, many enterprises have deployed VPN servers. The VPN (virtual private receptacle), which is built on the Windows Server 2003-based Routing and Remote Access service, is a secure and convenient remote access solution, and is now the preferred choice for most small and midsize enterprises.   Then how to secure the VPN is a problem for the enterprise CIO to face. VPN solution is to virtual ...

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