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  • What is the CA institution?

    What is the CA institution?

    This article will explain in detail what the CA institution is. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article. What kind of organization is the CA institution? SSL certificate plays an irreplaceable role in Internet transmission.

    Shulou · 2022-06-01 05:40
  • What are the benefits of installing https digital certificates

    What are the benefits of installing https digital certificates

    Editor to share with you what are the benefits of installing https digital certificates. I hope you will gain a lot after reading this article. Let's discuss it together. Https digital certificate with the wide application of the Internet, many daily activities of people will be completed through the network, especially the Internet business.

    Shulou · 2022-06-01 05:40
  • To be a public network yum source

    To be a public network yum source

    1. The network YUM source uses 163yum source. Go to the http://mirrors.163.com/.help/centos.html website to download the corresponding yum file (CentOS7CentOS6CentOS5) C

    Shulou · 2022-06-01 05:40
  • What is the Entrust certificate?

    What is the Entrust certificate?

    This article mainly introduces what the Entrust certificate is, which is very detailed and has certain reference value. Friends who are interested must finish reading it! Entrust is a world-leading Canadian cyber security high-tech company listed on NASDAQ in the United States. Establishment of the company

    Shulou · 2022-06-01 05:40
  • Installation of HCL Simulator

    Installation of HCL Simulator

    This week we learned about advanced routing switching. This course requires the use of a HCL simulator. The following are the difficulties encountered in the simulator installation project and the experience of using it. Installation problem: problem: launch HCL emulator pop-up a log error dialog box, unable to start HCL emulator solution: after the

    Shulou · 2022-06-01 05:40
  • To install a nginx certificate

    To install a nginx certificate

    This article will explain in detail the steps to install the nginx certificate, the content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article. Step 1. Apply for a certificate directly for the domain name: nginx in the installation phase

    Shulou · 2022-06-01 05:40
  • 93. Queue of QOS differentiated service configuration experiment

    93. Queue of QOS differentiated service configuration experiment

    1. Queue resolution 2. If the bandwidth of the First In First Out (FIFO) interface is greater than 2.048m, by default, the FIFO queue is running. Interfaces with less than 2.048m interface bandwidth are running WFQ queues by default. 3 、 P

    Shulou · 2022-06-01 05:40
  • Classical Cryptography-Line permutation encryption

    Classical Cryptography-Line permutation encryption

    In many textbooks, the definitions of row replacement password and column replacement password are not exactly the same, and even the core ideas are not the same at all. Based on my own learning experience, the author briefly introduces a so-called "line permutation password" algorithm in some textbooks, and we communicate and discuss it together. Using this encryption method, plaintext is line-by-line

    Shulou · 2022-06-01 05:40
  • Hydra cracked SMB port

    Hydra cracked SMB port

    Prepare the environment as always: prepare the Kali system prepare the Win7 system between Kali and Win7 to ping the purpose of the experiment by cracking the SMB port to obtain the Win7 password experiment began this time than last time it is easier than last time ha open Kali into Hydra first create words

    Shulou · 2022-06-01 05:40
  • RCE vulnerability recurrence record of fastjson

    RCE vulnerability recurrence record of fastjson

    Reference link: https://paper.seebug.org/994/https://www.cnblogs.com/jinqi520/p/11097779.htmlhttps://xz.aliyun.

    Shulou · 2022-06-01 05:40
  • SGMII Encyclopedia of Optical Module knowledge

    SGMII Encyclopedia of Optical Module knowledge

    SGMII is an unfamiliar and familiar term in the communications industry, some people may know a lot, maybe some people have little knowledge of it, if we have ever encountered the demand for this product, we can stop and understand it. SGMII--Serial Gigabit Media Indep

    Shulou · 2022-06-01 05:40
  • GlobalSign enhanced (EV) SSL certificate

    GlobalSign enhanced (EV) SSL certificate

    GlobalSign enhanced (EV) SSL certificate, which belongs to the highest verification level of EV SSL, verifies the ownership of the domain name, carries out strict enterprise real identity verification, the certificate identifies the name of the enterprise organization, strengthens the trust, and the browser address bar turns green. Provide 40 bits / 5

    Shulou · 2022-06-01 05:40
  • Classic case Analysis of MAC address Drift

    Classic case Analysis of MAC address Drift

    The network topology is as follows: IRF virtualization is done between two operator access switches (that is, two switches are virtualized into one switch), and VRRP hot backup network structure is made between two load balancers. The gateways of each link are all in the operator's place, port 5800-2.

    Shulou · 2022-06-01 05:40
  • OpenNMS system installation (Linux-CentOS7)

    OpenNMS system installation (Linux-CentOS7)

    Note: here we take CentOS7 as an example to introduce the installation process of OpenNMS. Prepare the environment to install gityum install git install autoconfyum install autoconf automake libto

    Shulou · 2022-06-01 05:40
  • A simple comparison between DH and RSA algorithms

    A simple comparison between DH and RSA algorithms

    This paper briefly talks about the two most commonly used asymmetric encryption DH algorithms and RSA algorithms in security. This paper does not intend to involve some mathematical principles, which have been described in many articles on the Internet, and it is not meaningful to repeat them (this kind of article only needs to pay attention to two points, * one of which is the method of key generation.

    Shulou · 2022-06-01 05:40
  • Common commands in JUNIPER (1)

    Common commands in JUNIPER (1)

    1. Initial login device: root password is empty; conf mode; password is at least 6 digits, letters + numbers 2, load factory-default; restore factory default settings-after the system is restored from the factory, it does not mean there is no configuration, and the system defaults

    Shulou · 2022-06-01 05:40
  • P2P GRE over IPsec

    P2P GRE over IPsec

    R1 (config) # interface tunnel 1R1 (config-if) # ip address 1.1.1.1 255.255.255.0R1 (config-if) # tunnel sour

    Shulou · 2022-06-01 05:40
  • PLC wireless communication solution, support Siemens, Mitsubishi, OMRON, Delta and other brands PLC

    PLC wireless communication solution, support Siemens, Mitsubishi, OMRON, Delta and other brands PLC

    In practical projects, there are often multiple PLC need to communicate with each other, the distance may be from tens of meters to thousands of meters, and some customers need to monitor the status of PLC remotely through the Internet. This paper introduces a realization method of PLC wireless communication, which adopts giant control GRM200 series PLC special wireless communication.

    Shulou · 2022-06-01 05:40
  • Zabbbix Wechat alarm

    Zabbbix Wechat alarm

    In the production environment, we usually use email and SMS to receive zabbix alarm messages, but the email is often shelved by the staff in the corner and even set as spam to be filtered. The company's SMS interface is too expensive, and the use of SMS alarm in a complex environment will increase the cost of operation and maintenance a lot. Provided by Wechat

    Shulou · 2022-06-01 05:39
  • FIDO U2F Application Development (2)-programming Interface

    FIDO U2F Application Development (2)-programming Interface

    1. U2F JS API    FIDO U2F defines JavaScript API for developers to develop online services that support U2F devices. U2F JS API is divided into two categories: the bottom API based on message port and the upper application API. In FI

    Shulou · 2022-06-01 05:39