Shulou(Shulou.com)06/03 Report--

Popular science can be used as a reference for children's shoes in need.

The principle of penetration is roughly divided into the following categories:

1. Schematic diagram of the principle of proxy penetration:

Advantages: users do not need public network IP deficiency to maintain 100% penetration success rate: operators provide access to public network, hardware investment is large and bandwidth requirements are high, and free users are often subject to speed limit, resulting in "chicken ribs" on free use. 2. Schematic diagram of direct penetration principle:

Advantages: autonomous control, no need for third-party forwarding to maintain 100% penetration success rate is insufficient: the server must have the public network IP bandwidth depends on the minimum bandwidth of both the server and the client (the bandwidth for the CVM is not friendly, mainly expensive! It's expensive! ) due to direct exposure to the public network, there will be security problems that need to be built by yourself. 3. Schematic diagram of P2P penetration principle:

Advantages: peer-to-peer, maximizing bandwidth, lack of user-friendly: success rate in Ipv4 environment depends on NAT type, mobile network (3G/4G) has a high success rate in Ipv6 environment, depends on firewall policy (firewall penetration) almost entirely based on UDP protocol or its derived custom protocols. There are more or less flaws in security and reliability. 4. Ssh tunnel penetration: slightly commonly used free tool penetration posture:-/-Agent penetration directly through P2P public network IP remarks Peanut shell YESNONONO does not need speed limit to suspect that life teamviewerYESNONONO does not need annoying commercial tips NgrokYESYESNOYES needs FrpYESYESYES/UDPYES to choose one of the three ways smarGateYESYESYES/TCPYES does not need simultaneous support, P2P priority

Attached:

SmarGate: https://github.com/lazy-luo/smarGate

Frp: https://github.com/fatedier/frp

Ngrok: https://github.com/inconshreveable/ngrok

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