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  • Dell R730 server Ctrl+R cannot enter the disk array setup interface

    Dell R730 server Ctrl+R cannot enter the disk array setup interface

    Environment: Dell R730 server (also applicable to R720, R630, R620, R420, R530) problem: no Ctrl+R interface appears after boot, unable to enter the disk array setup interface solution steps: 1, press F2 to enter the system setup (sy) when booting up

    Shulou · 2022-06-03 10:14
  • SharePoint Online developer: SharePoi

    SharePoint Online developer: SharePoi

    Blog link: https://blog.51cto.com/13969817 when we use SharePoint Hosted App to get the user's ID, you will find the JavaScript Ob in SharePoint

    Shulou · 2022-06-03 10:14
  • SCCM deployment (11)-SCCM client installation

    SCCM deployment (11)-SCCM client installation

    1. Device collection because when you install the client through policy, you need to put the devices into a collection, so you need to create a device collection first. 2. Install package install SCCM client package is located in the system program\ smssetup\ client directory, installed silently in the background, installed as

    Shulou · 2022-06-03 10:13
  • Further discussion on the Application Prospect of Go language in the Front end

    Further discussion on the Application Prospect of Go language in the Front end

    On December 23, Mr. Xu Shiwei, founder of Qiniuyun CEO & ECUG community, brought you a content sharing with the theme of "talking about the Application Prospect of Go language in the Front end" at the ECUG Con 2018 scene. This article is a record of the content of the speech.

    Shulou · 2022-06-03 10:13
  • Windows10,7 update patch failed to install .NET 3.

    Windows10,7 update patch failed to install .NET 3.

    Clean up and update the temporary files, the specific operations are as follows: 1. Right-click start-run and type services.msc. two。 Find the WindowsUpdate service item and right-click to disable it. 3. Open c:\ windows\ SoftwareDi

    Shulou · 2022-06-03 10:13
  • Overview and experiment of VLAN, principle and experiment of Trunk, principle of layer 3 switch

    Overview and experiment of VLAN, principle and experiment of Trunk, principle of layer 3 switch

    one。 Why do we need VLAN? In the network, all users are in the same broadcast domain. When the network scale is relatively large, our hosts need APR broadcast to find MAC addresses. At this time, the number of broadcast packets increases sharply. When the number of broadcast packets accounts for 30% of the total, the network is transmitted.

    Shulou · 2022-06-03 10:13
  • Log Management in Linux system

    Log Management in Linux system

    # Experimental environment # rhel7_node1: there are two journa after journald rsyslog Enterprise 7, a tool for 192.168.1.10rhel8_node1:192.168.1.11 log collection

    Shulou · 2022-06-03 10:13
  • Cloud Computing Learning Roadmap material Courseware: a Common Open Source tool for Cloud Computing

    Cloud Computing Learning Roadmap material Courseware: a Common Open Source tool for Cloud Computing

    With the rapid development of the Internet and the support of national policies, China's cloud computing industry is developing rapidly, and cloud computing talents have become scarce high-paid talents. As we all know, cloud computing and open source are in love with each other. With the help of the open source community, cloud computing technology quickly occupies the market, but cloud computing is commonly used in 2020.

    Shulou · 2022-06-03 10:13
  • Win and Linux series

    Win and Linux series

    1) operating system a. The operating system is divided into Win and Linux series; among them, Win is commonly seen as IIS, and there are so many programs that can be supported by "ASP+PHP+ZEND+GD+ASPJPEG+MYSQL"; and Linux uses

    Shulou · 2022-06-03 10:13
  • Understanding the Network IO Model under Linux from the operating system level

    Understanding the Network IO Model under Linux from the operating system level

    I _ INPUT OUTPUT, including file I _ I _ O, network _ I _ I _ O. Speed disdain in the computer world: read data in memory: nanosecond level. Gigabit network card read data: subtle level. 1 microsecond = 1000 nanoseconds, the network card is a thousand times slower than memory. Disk read data: millisecond level

    Shulou · 2022-06-03 10:13
  • Exchange 2013 CU20 and Exchange 20

    Exchange 2013 CU20 and Exchange 20

    Microsoft has released the 2018 Exchange 2013 Universe 2016 patch update on March 20, 2018. The patch release notes for Microsoft can be found at: https://blogs.technet.microsoft.com/ex

    Shulou · 2022-06-03 10:13
  • Understanding virtual machine snapshots

    Understanding virtual machine snapshots

    1. There is a dependency between the snapshot and the snapshot, and when the dependency between the parent virtual disk and the child virtual disk breaks, the virtual machine does not respond or cannot start. two。 When the snapshot time is too long, too many snapshots may cause the system blue screen or the client operating system may not be able to boot again. 3. Too much is fast.

    Shulou · 2022-06-03 10:13
  • Solution to the expiration of K3s certificate

    Solution to the expiration of K3s certificate

    The test found that there is a problem with https tls hand error after using K3s for one year, and it is not possible to rebuild the certificate. You can only reinstall the K3s environment through source code compilation and repair: ubuntu 16.04docker 18.06.3 1. Install gi

    Shulou · 2022-06-03 10:12
  • Bash feature of Shell script programming-IO redirection-variables

    Bash feature of Shell script programming-IO redirection-variables

    The characteristics of Bash 1. What is shell? Human-computer interaction interface can be divided into two types: GUI (graphical user interface) and CLI (command line interface). A command interpreter or shell program is a mechanism by which each interactive user can issue commands to the operating system

    Shulou · 2022-06-03 10:12
  • Linux environment building | hands-on to teach you to configure Linux virtual machine

    Linux environment building | hands-on to teach you to configure Linux virtual machine

    In the previous section, "holding you to teach you to install the Linux virtual machine", we have installed the Linux virtual machine. In this section, we will configure the installed Linux virtual machine so that it can be developed. Ubuntu cannot be developed after it has just been installed

    Shulou · 2022-06-03 10:12
  • DeadLock problem in Tomcat 9.0.26 High concurrency scenario

    DeadLock problem in Tomcat 9.0.26 High concurrency scenario

    This article was first posted on vivo Internet Technology Wechat official account link: https://mp.weixin.qq.com/s/-OcCDI4L5GR8vVXSYhXJ7w author: Huang Weibing, Chen Jinxia one, Tomcat Container 9.0.26

    Shulou · 2022-06-03 10:12
  • Error while loading shared lib

    Error while loading shared lib

    Libexec/gcc/arm-linux-gnueabi/4.6.3/cc1: error while loading shared libraries: libz.so.1: cannot ope

    Shulou · 2022-06-03 10:12
  • Introduction of i.MX8 Chip (Mir Electronics iMX8 Series Core Board and Development Board Learning Pen

    Introduction of i.MX8 Chip (Mir Electronics iMX8 Series Core Board and Development Board Learning Pen

    As we all know, NXP has introduced iMX8 chips for a long time. There are more and more iMX8 families, and there are iMX8, iMX8M, iMX8M Mini and i.MX8M Nano4 chip application processors at present. Recent iMX8 system for Mill Electronics

    Shulou · 2022-06-03 10:12
  • Recognized by the giants again, Rancher and ARM jointly launched the Internet of things, the edge

    Recognized by the giants again, Rancher and ARM jointly launched the Internet of things, the edge

    On December 11, 2018, enterprise Kubernetes management platform Rancher Labs (hereinafter referred to as Rancher) announced a partnership with British chip designer Arm to meet customer deployment needs for the Internet of things and edge computing. In the future, Ranche

    Shulou · 2022-06-03 10:12
  • Docker Advanced Management (example demonstration!!)

    Docker Advanced Management (example demonstration!!)

    Docker network communication Docker stand-alone network topology diagram: Port mapping: Port mapping mechanism provides services within the container to external network access can be randomly or specified mapped port range docker run-d-P httpd:centosdocker r

    Shulou · 2022-06-03 10:11