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  Iptable table chain relation

  1. Selinux is closed in production. According to the environment, the iptables is closed in the internal network and enabled in the external network. In the case of large concurrency, kernel:nf_con occurs when iptables.2 and / var/log/messages are not enabled.

  2022-06-01 10:11:03 Views: 233
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  ACL access Control list (1)

  ACL access control list access control list (router, layer 3 switching) packet filtering firewall type of ACL access control list standard access control list based on source IP address filter packet standard access control list number

  2022-06-01 10:11:03 Views: 225
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  Extraction and repair of files according to the contents of files after U disk poisoning

  The company received a virus U disk in one case and learned through the customer description that it was infected with the virus when printing files in the copy room of its unit, resulting in the loss of document files in two important folders, and some files could not be copied. After inspection by the technician, it is found that two important folder directory areas have been corrupted into garbled (

  2022-06-01 10:10:54 Views: 211
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  Tungsten Fabric Architecture Analysis, TF based on Application Security

  Hi! This is the last article on Tungsten Fabric architecture parsing, which introduces TF's application-based security policy. A series of articles on Tungsten Fabric architecture analysis, presented by the TF Chinese community, designed to help friends who are new to the TF community to answer questions.

  2022-06-01 10:10:24 Views: 241
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  What's the difference between fog computing and edge computing?

  What's the difference between fog computing and marginal computing fog computing and marginal computing are both concepts that were put forward in the early years, but why have they developed so much in recent years? Previously, the development of the Internet of things industry is not as rapid as it is now, and there are not so many devices in the Internet of things. In the past, data was collected at the front end.

  2022-06-01 10:10:15 Views: 252
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  Huawei switch configuration remote management address

  The process of configuring stelent on Huawei switch. The switch model is s5700 software Version V200R010C00SPC600. The notebook is connected to the switch through the consloe port. The default user name is admin and the default password is.

  2022-06-01 10:10:00 Views: 245
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  Reveal the IT infrastructure behind LOL? embark on the journey of deployment diversity

  At the beginning of this issue, we will share Tungsten Fabric user case articles one after another to discover more application scenarios of TF. The protagonist of the "revealing LOL" series is TF user Riot Games Game Company, as the developer and operator of LOL "League of Legends".

  2022-06-01 10:10:00 Views: 250
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  TCP three-way handshake and four waving

  TCP's three-way handshake and four waving hands the interviewer often asks questions in the Internet, how to make hosts of different network segments communicate with each other, need to use TCP protocol; TCP, to provide connection-oriented services, must establish a connection before transmitting data, and release the connection after the data transfer is completed. T

  2022-06-01 10:09:57 Views: 271
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  Understanding of Cisco ACI

  Full name: Application Centric InfrastructureACI logic: tenant logic interface logic: 1 online Spine devices and Leaf devices are automatically produced after the topology is connected and powered on, without manual intervention.

  2022-06-01 10:09:30 Views: 279
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  Differential Analysis of risk Assessment and Equal Insurance Assessment

  With the promulgation and implementation of the Network Security Law in 2017, more and more enterprise leaders begin to pay attention to the network security construction of their own enterprises, while the upcoming release of "basic requirements for Information Security Technology Network Security level Protection" V2.0, more clearly defines the direction of enterprise network security construction. Serena Williams is here.

  2022-06-01 10:09:15 Views: 251
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  What is the impact of web hijacking?

  The traffic obtained is also different with different hijacking methods. DNS hijacking can only intercept traffic initiated through a domain name, and communications directly using IP addresses will not be affected; there is only risk when browsing or downloading, and there is no problem in other situations; while the gateway is hijacked, all user traffic can not escape.

  2022-06-01 10:09:11 Views: 238
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  Three protocols of Industrial Internet of things Gateway

  Modbus Industrial Internet of things Gateway is a protocol converter that supports Modbus interface (RS232/485) and Modbus TCP. With Modbus TCP to Modbus RTU function, it is an industrial gateway that supports multi-protocol conversion.

  2022-06-01 10:09:11 Views: 244
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  Construction of domain environment for small and medium-sized networks-- second quarter (network configuration)

  The "connecting the first quarter" switch is the most basic equipment unit in the network system. The small and medium-sized domain network architecture I now plan for users is gigabit access-> 10 Gigabit core (two-tier architecture), using optical fiber connection between the access and the core. The experimental topology diagram is as follows: I used Huawei's eNS in the experimental environment.

  2022-06-01 10:08:50 Views: 240
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  Comprehensive analysis of the difference between optical fiber jumper and tail fiber and matters needing attention

  The variety of jumper and tail fiber is very rich, it is worth noting that optical fiber tail fiber and jumper are not the same concept. The main difference between the optical fiber jumper and the optical fiber tail is that only one end of the optical fiber tail has an active connector, and both sections of the jumper have an active connector. To put it simply, dividing the jumper into two can be used as a tail fiber. Lower

  2022-06-01 10:08:41 Views: 254
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  MFC's Abo static library .lib, sports dynamic library .dll and Unico

  The MFC Abe static library uses the following sports naming convention: uAFXcWd.LIB. The specifiers of the library naming convention are as follows: specifier value and meaning u (n) ANSI or (u) Unicodec created plan type: c=alld d=debug version

  2022-06-01 10:08:38 Views: 229
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  Tungsten Fabric architecture and the latest technological progress: TF was founded.

  This article is based on the speech given by Sukhdev Kapur, an outstanding engineer of Juniper Network, on "the Establishment of TF Chinese Community and the first full meeting". The description of the function of TF is added. Pdf click to download. Https://tungstenfabric.org.c

  2022-06-01 10:08:08 Views: 280
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  Introduction and configuration of Huawei Firewall Management

  Blog outline: 1. Introduction of several management modes of Huawei firewall equipment. 2. Configuration of various management modes. 1. Management through Telnet 2. Management through web 3. Management through SSH. 1. Several management modes of Huawei firewall equipment are introduced due to the configuration of management for firewall equipment.

  2022-06-01 10:07:38 Views: 212
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  Application of face recognition and Edge Computing in Smart City

  The application of face recognition and edge computing in smart cities in recent years, with the improvement of people's living standards, many families have bought cars, resulting in vehicles running red lights, speeding, random parking, retrograde, rising theft and child abduction. Urban intelligent monitoring system can be effectively combined with electronic police.

  2022-06-01 10:07:28 Views: 280
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  VulnHub Test range DC-1

  * * IP:192.168.110.212** -. Arp-scan-l to view the hosts that survive in the same area. Knowing the ip, then we visit the home page as follows: first, collect information and use nmap for port scanning to find the following ports: 22 (ssh)

  2022-06-01 10:06:58 Views: 277
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  Come to TF Meetup to chase a technology storm of "open source SDN"

  Over the past decade, China has been one of the fastest growing markets in the global cloud computing industry, with an average annual growth rate of more than 30%. According to the guidelines for promoting the implementation of Enterprises in the Cloud (2018-2020) by the Ministry of Industry and Information Technology, there will be 1 million new enterprises in Shanghai by 2020. On the other hand, we all

  2022-06-01 10:06:44 Views: 298