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  • Rsync daemon server-side installation configuration steps

    Rsync daemon server-side installation configuration steps

    1. Check whether rsync installs rpm-qa rsyncyum install rsync openssh-clients-y2 and adds user rsyncuseradd rsync-s / sbin/nol

    Shulou · 2022-06-03 10:18
  • Image management, port mapping and container interconnection of Docker containers

    Image management, port mapping and container interconnection of Docker containers

    Each instruction in the hierarchical   Dockerfile of docker mirroring creates a new mirror layer; the   mirror layer will be cached and reused;   when the Dockerfile instruction is modified, the copied file changes, or the specified variables are different when building the image

    Shulou · 2022-06-03 10:18
  • Just a few steps to bring the old computer back to life.

    Just a few steps to bring the old computer back to life.

    Choose the official original factory pure image or clean Ghost I have worked for so long, I have come into contact with a lot of colleagues, and there are also many people around who can install the system, but I have found that many people use ghost installation, tomato gardens, radish homes, computer cities and other bad streets.

    Shulou · 2022-06-03 10:17
  • The strange problem of starting the USB disk of Lenovo C455 computer

    The strange problem of starting the USB disk of Lenovo C455 computer

    ! [] recently encountered a computer, through the understanding of the normal shutdown, the next day on the black screen. When going to the scene to check, can not enter the PE normally, enter the BIOS setting is also normal, but can not enter the PE system, through the exclusion found that plugged in the USB keyboard and mouse, U disk startup can not enter the PE. When pulled out

    Shulou · 2022-06-03 10:17
  • How to build DHCP (IP automatic allocation)

    How to build DHCP (IP automatic allocation)

    Dynamic Host setup Protocol (English: Dynamic Host Configuration Protocol,DHCP) is a network protocol of a local area network. It works with UDP protocol and has two main uses: for automatic allocation of intranets or network service providers.

    Shulou · 2022-06-03 10:17
  • How to check the WWN address of unix and linux HBA cards

    How to check the WWN address of unix and linux HBA cards

    AIX:1, obtain the fiber optic device connected to the AIX host: root@test:/# lsdev-Cc adapter-S a | grep fcsfcs0 Available 05-00 4Gb FC PCI

    Shulou · 2022-06-03 10:17
  • Network Monitoring tool nicstat

    Network Monitoring tool nicstat

    Nicstat:Time Int rKB/s wKB/s rPk/s wPk/s rAvs wAvs% Util Sat06:19:46 eth0 225.7 176.2 905.0 922.0 22

    Shulou · 2022-06-03 10:17
  • Modification of owa login format for complete installation of exchange2016 4 nodes

    Modification of owa login format for complete installation of exchange2016 4 nodes

    Simplify the login format of the user name of the owa interface. Configure to enter only the user name, not the domain name. Modify the login format of each mail server. After the server is modified, you need to restart the IIS. The other three servers do the same.

    Shulou · 2022-06-03 10:17
  • MQ-2 smoke alarm based on Raspberry Pi platform

    MQ-2 smoke alarm based on Raspberry Pi platform

    First, the early preparation to achieve the goal:    uses Rapberry Pi to drive the MQ-2 smoke alarm module to collect and extract information. 1. Prepare raspberry pie (Raspberry Pi) a 2.MQ-2 harmful gas detection module 3. Several 4.SD cards on DuPont line

    Shulou · 2022-06-03 10:17
  • Linux command

    Linux command

    Pwd view current path rm file name delete file rm-rf folder delete folder touch command has two functions: one is to update the time tags of existing files to the current time of the system (the default), and their data will remain intact; the second is to use the

    Shulou · 2022-06-03 10:17
  • Linux, windows log in to the remote linux server

    Linux, windows log in to the remote linux server

    As a server-level operating system, linux fully considers the problem of remote login. It is very convenient to log in to linux from linux, windows or some other operating systems. This article introduces the use of linux and windows to log in remotely.

    Shulou · 2022-06-03 10:16
  • Optimization of kernel parameters of Linux server

    Optimization of kernel parameters of Linux server

    Linux kernel parameter tuning is mainly achieved by modifying the parameters of the / proc pseudo file system and / etc/sysctl.conf configuration file. The / proc directory structure is as follows: / proc/driver drive-related information / proc/fs

    Shulou · 2022-06-03 10:16
  • Dynamic jenkins slav based on kubernetes

    Dynamic jenkins slav based on kubernetes

    * * since Jenkins-based CI/CD** is going to create a deployment, let's first create a namespacekubectl create namespacekube-ops for it, and then we'll create a

    Shulou · 2022-06-03 10:16
  • Lunix system installation and partition supplementary installation package

    Lunix system installation and partition supplementary installation package

    Installation disk boot installation menu Install or upgrade an existing system this is a new installation and upgrade system Rescue installed system rescue mode system can not start up use this mode to choose

    Shulou · 2022-06-03 10:16
  • Supervisor managed Services

    Supervisor managed Services

    Supervisor (http://supervisord.org) is a process management tool written in Python that can be easily used to start, restart, and shut down processes (not just Python processes). Except for a single process

    Shulou · 2022-06-03 10:16
  • Connect the raspberry pie to Microsoft Cloud Azure IoT Hub in 30 minutes and set the

    Connect the raspberry pie to Microsoft Cloud Azure IoT Hub in 30 minutes and set the

    Raspberry pie is an essential toy for many hands-on people. In this section, let's take out the raspberry pie, connect the raspberry pie to the IoT Hub of Microsoft Cloud Azure in 30 minutes, and then visualize the temperature and humidity curve. For more information, please follow the complete operation video of this article on the official account "Cloud Computing practice".

    Shulou · 2022-06-03 10:16
  • Detailed explanation of Centos 7 load balancing configuration based on DR (Direct routing) Mode

    Detailed explanation of Centos 7 load balancing configuration based on DR (Direct routing) Mode

    DR (Direct routing) is one of the three load balancing modes, and it is also the most frequently used one. For an introduction to this mode, please refer to the blog article: LVS load balancing Cluster for details. The schematic diagram of DR's working mode is as follows: the principle of this mode has been written down in the blog post linked above. Now straight.

    Shulou · 2022-06-03 10:16
  • Similarities and differences between CA Certificate and self-signed Certificate

    Similarities and differences between CA Certificate and self-signed Certificate

    This is a translated article, the provenance can not be found. If you want to build a successful website, security is one of the key factors, for those who need to collect PIA (personally identifiable information) from visitors

    Shulou · 2022-06-03 10:16
  • Docker common commands

    Docker common commands

    1. Docker image operation basic command [root@localhost ~] # docker search image name / / search image (find it on the official website of docker Hub) [root@localhost ~] #

    Shulou · 2022-06-03 10:16
  • S5pv210 SD card macro definition C code explanation

    S5pv210 SD card macro definition C code explanation

    First, analyze the C code: # define CopySDMMCtoMem (zmemarech bjorcje) (bool ()) (int, unsigned int, unsigned short, unsigned int)

    Shulou · 2022-06-03 10:16