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  • 6 Steps to Securing Critical Infrastructure Operations Technology
    6 Steps to Securing Critical Infrastructure Operations Technology
    Securing hardware and software systems for power plants, water treatment facilities, transportation systems, and other critical infrastructure requires network visibility, vulnerability assessments, and overall strategic and incident response plans. As the nation increasingly relies on technology to power critical infrastructure and government operations, the need to secure operational technology becomes increasingly important. OT includes hardware and software systems used to control and monitor physical processes in power plants, water treatment facilities, transportation systems, and other critical infrastructure. These systems play a vital role in ensuring the safety and well-being of communities, and any disruption to their operation can have serious consequences. The challenge in securing OT is that these systems are developed for reliability and security, not security. Many OT systems are based on several
    Safety 1420 2023-08-03 15:25:06
  • An SRE who cannot build a data asset system is not a good maintenance person.
    An SRE who cannot build a data asset system is not a good maintenance person.
    1. Understanding data assets 1. Data assets - the picture of enterprise IT value is shown in the figure. When data assetization is not implemented, data may be in a discrete state, data production and consumption are not unified, and data islands or zero benefits are prone to occur. . After building data capitalization, we integrate data from different channels and construct unified data sources or process links for data collection, storage, and analysis, and then unify the corresponding data structures, data relationships, and consumption outlets. After the operational data is collected and compiled, it can serve its own decision-making and business processes. 2. Data assets - taking operation and maintenance scenarios as an example. The picture above takes scenarios as an example to introduce the classification of data assets. To understand data assets, we must understand the three elements corresponding to data assets, namely data type, data form and data carrier.
    Safety 911 2023-07-22 15:33:51
  • 2 ways to add users to SUDOERS group in Debian
    2 ways to add users to SUDOERS group in Debian
    In DebianLinux, the SUDOERS group plays a vital role in granting administrative rights to users. Adding users to the SUDOERS group enables them to execute commands with root privileges, thereby providing them with the necessary administrative access to perform various tasks on Debian systems. During the installation of Debian Linux, if you leave the password for the root account blank, the first user created on the system will have administrative rights. However, if you set a root password, the username will not have sudo permissions. Therefore, you may encounter errors similar to the following while using the user account to perform administrative tasks. isnotinthesudoers
    Safety 2299 2023-07-05 19:13:45
  • Is cloud native stability undervalued? Look at the stability guarantee rules of leading financial companies!
    Is cloud native stability undervalued? Look at the stability guarantee rules of leading financial companies!
    Technological waves such as cloud computing, big data, artificial intelligence, and blockchain have given continuous vitality to financial technology innovation. However, at the same time, new economic forms represented by the digital economy have also brought changes to traditional financial formats and existing underlying technologies. Profound changes and huge challenges. In the context of a complex international situation, the country has put forward higher requirements for safe, reliable, independent and controllable technologies. The financial industry information system has independent research and development capabilities, and reducing dependence on commercial products has become an urgent task. Since the financial industry involves people's livelihood, once problems occur in the business, it will have a serious impact on the entire public opinion. Therefore, ensuring the system stability of the financial industry is particularly important. However, financial companies that are going digital have unpredictable, uncontrollable, and highly complex businesses.
    Safety 1394 2023-07-04 08:34:33
  • SecureCRT 9.4 is released! Check out what's new!
    SecureCRT 9.4 is released! Check out what's new!
    Background SecureCRT is a highly customizable terminal emulator that supports SecureShell (SSH) as well as Telnet, Telnet/TLS, and serial protocols. SecureCRT is ideal for secure connections to remote systems running Windows, UNIX and VMS. SecureCRT supports secure file transfer via Xmodem, Zmodem, Ymodem, Kermit and SFTP. New Features in SecureCRT 9.4 Dynamic Color Settings New Session Manager Icon (Windows) Resizable Dialogs RDP Enhancements (Windows) Management Options (Windows) Algorithm Support Text
    Safety 1877 2023-06-28 19:07:05
  • After interviewing some operations and maintenance, I found 3 common points
    After interviewing some operations and maintenance, I found 3 common points
    Recently, due to some reasons, I needed to recruit an operation and maintenance personnel, so I screened a lot of resumes and interviewed many people. I found that everyone had the same problems. Mainly in the following aspects: The focus of the resume is unclear, but the personal plan is not clear. Let me talk about my views from these three aspects. The focus of the resume is not clear. The resume is very important. The resume is very important. The resume is very important. A resume is a stepping stone for a person. Whether you can get an interview depends on whether your resume meets the needs. I have never met you, and I know very little about you. How can I understand you? Just your resume. However, I don’t know if it’s a common problem in IT jobs or if it’s unique to those in operation and maintenance jobs. I found that most people’s resumes are just like those in charge of virtualization.
    Safety 1649 2023-06-22 13:43:23
  • Galaxy Kirin system installation middleware
    Galaxy Kirin system installation middleware
    Nowadays, more and more enterprise-level applications need to run in a domestic environment. This article introduces the installation of the middleware used by our products on the domestic operating system Galaxy Kirin (not necessarily the best way, but it can be used). Includes; Nginx, Redis, RabbitMQ, MongoDB, dotNETCore. The picture below is the information of the Galaxy Kirin server: For a smooth installation, you need to ensure: 1. The server can access the network. If you want to install it completely offline, it will be more complicated and requires further research. 2. Modify the yum source. Use vi/etc/yum.repos.d/kylin_aarch64.repo to set the yum source. The file content is as follows: ###KylinLinuxAdv
    Safety 1666 2023-06-12 11:13:43
  • An article on how to optimize the performance of LLM using local knowledge base
    An article on how to optimize the performance of LLM using local knowledge base
    Yesterday, a 220-hour fine-tuning training was completed. The main task was to fine-tune a dialogue model on CHATGLM-6B that can more accurately diagnose database error information. However, the final result of this training that I waited for nearly ten days was disappointing. Compared with the training I did before with a smaller sample coverage, the difference was quite big. This result is still a bit disappointing. This model basically has no practical value. It seems that the parameters and training set need to be readjusted and the training is performed again. The training of large language models is an arms race, and it is impossible to play without good equipment. It seems that we must also upgrade the laboratory equipment, otherwise there will be few ten days to waste. Judging from the recent failed fine-tuning training
    Safety 1971 2023-06-12 09:23:20
  • How to use trusted computing technology to build a trusted transportation system?
    How to use trusted computing technology to build a trusted transportation system?
    How to use trusted computing technology to build a trusted transportation system? With the acceleration of urbanization, problems such as traffic congestion, frequent accidents, and environmental pollution need to be solved urgently. In order to improve the safety, reliability and intelligence level of the transportation system, trusted computing technology has become an important means to build a trustworthy transportation system. This article will introduce trusted computing technology and its application in building trusted transportation systems. 1. Introduction to Trusted Computing Technology Trusted computing refers to the use of hardware and software technologies with definition and verification mechanisms to ensure the confidentiality, integrity, and reliability of system services and execution environments.
    Safety 883 2023-06-11 23:16:36
  • Application of trusted computing technology in the field of industrial security
    Application of trusted computing technology in the field of industrial security
    With the development of the information age, the application of computer technology has become more and more widespread, and information security issues have become more and more important concerns. Although traditional security technologies can ensure the security of information to a certain extent, there are still risks of attacks and data leaks. The application of trusted computing technology can effectively realize secure computing and data protection, greatly improving the security and credibility of the industry. 1. Characteristics of Trusted Computing Technology Trusted computing technology is the most widely used computer security technology in recent years. Its core idea is based on hardware
    Safety 1824 2023-06-11 23:00:10
  • Analysis of the application prospects of blockchain technology in the field of network security
    Analysis of the application prospects of blockchain technology in the field of network security
    Analysis of the Application Prospects of Blockchain Technology in the Field of Network Security With the rapid development of the Internet and people's emphasis on information, network security issues have become more and more prominent. Blockchain technology has received widespread attention and application in recent years. Its decentralization and non-tamperable data characteristics have also attracted much attention for its application prospects in the field of network security. This article will analyze and discuss the characteristics of blockchain technology, existing problems in the field of network security, and the application of blockchain technology in network security. Characteristics of Blockchain Technology Blockchain is a way to
    Safety 2012 2023-06-11 21:27:09
  • Research on countermeasures against cyber attacks
    Research on countermeasures against cyber attacks
    Research on Countermeasures for Cyber ​​Attacks With the rapid development of information technology, cyberspace has become an indispensable and important component in production, learning, entertainment, social interaction, etc., and has also become an important work platform for all walks of life. However, network attacks are also developing simultaneously. More and more people are attacking networks and information systems, and they are becoming more and more skilled, which has brought huge challenges to network space security. This has also made network security a concern of today's society. One of the hot topics. This article will discuss countermeasures against cyberattacks in order to improve network security. 1. Understand the network
    Safety 1199 2023-06-11 21:04:41
  • Application of trusted computing technology in smart cities
    Application of trusted computing technology in smart cities
    With the continuous popularization and development of smart cities, there is an increasing demand for trusted computing technology. Trusted computing technology is a technology that protects computer hardware, firmware, operating systems and applications from malicious attacks. It can effectively improve the security and reliability of smart cities and greatly reduce risks in city operations. This article will introduce the application of trusted computing technology in the field of smart cities. 1. Intelligent transportation Intelligent transportation is an important part of smart cities, but its security is also highly likely to be threatened. For example, a malicious attacker might
    Safety 782 2023-06-11 21:01:39
  • Establish a network security defense system based on traffic analysis
    Establish a network security defense system based on traffic analysis
    In today's information age, network security has become an important issue that enterprises and individuals must face, and network attack methods are becoming increasingly diverse and complex. In order to ensure network security, establishing a network security defense system based on traffic analysis has become an effective solution. This article will introduce how to establish such a security defense system. 1. What is a network security defense system based on traffic analysis? A network security defense system based on traffic analysis refers to detecting and preventing network security threats in a timely manner through monitoring, collecting, analyzing and processing network traffic.
    Safety 1332 2023-06-11 20:44:09
  • Analysis and prevention of typical network application vulnerabilities
    Analysis and prevention of typical network application vulnerabilities
    With the popularization of the Internet, more and more network applications are appearing, and various websites, APPs, small programs, etc. are everywhere. Network applications bring us convenience and entertainment, but they also bring security risks. The existence of network application vulnerabilities can easily be exploited by hackers, leading to security issues such as data leakage, theft of personal information, account theft, and network attacks. This article will start with common network application vulnerabilities, analyze the causes and provide preventive measures. SQL injection vulnerability SQL injection vulnerability is a common vulnerability exploited by hackers to attack databases
    Safety 1317 2023-06-11 20:36:08

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