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  • 10. Manage site replication

    10. Manage site replication

    This demonstration was completed on September 21, 2012, and may be helpful to peers in managing site replication 1. Build an environment of two sites in a domain (two DC are in different sites) 2. Explain the solution of site replication conflict by experiment 1. Property value conflict 2. Object name conflict 3. Object

    Shulou · 2022-06-03 01:50
  • Smooth upgrade of Nginx version

    Smooth upgrade of Nginx version

    1. Compile and install nginx-1.14.2:# yum-y install gcc pcre pcre-devel zlib zlib-devel# tar-xf nginx-1.14.2.tar.gz

    Shulou · 2022-06-03 01:50
  • Qemu trace usage

    Qemu trace usage

    Qemu has its own Trace framework and supports multiple debug/trace backends including: nop, dtrace, ftrace, log, simple, ust, which can help us analyze problems in Qemu. About these backe

    Shulou · 2022-06-03 01:50
  • Expect interaction-free for Shell scripts

    Expect interaction-free for Shell scripts

    Expext Overview Expect is a tool based on tcl, and Expect is a tool for automated control and testing. Mainly solve the problem of non-interactive in shell script. It is helpful for large-scale system operation and maintenance work. In the daily operation and maintenance and development, it is often needed

    Shulou · 2022-06-03 01:50
  • Getting started with K8s from scratch | etcd performance optimization practice

    Getting started with K8s from scratch | etcd performance optimization practice

    Author | Chen Xingyu (Yumu) Chinese and Taiwan technical expert on the basic technology of Ali Cloud this article is compiled from the "CNCF x Alibaba Cloud Native Technology Open course". Guide: etcd is a component used by the container cloud platform to store key meta-information. Alibaba uses etc

    Shulou · 2022-06-03 01:50
  • Centos configure rsync remote synchronization and real-time backup using inotify+rsync

    Centos configure rsync remote synchronization and real-time backup using inotify+rsync

    Blog directory 1, rsync overview 1, basic usage of rsync command 2, configure rsync1, configure rsync2 for synchronous authentication, rsync periodic synchronization 3, configure inotify+rsync real-time synchronization 1, rsync overview rsync (R

    Shulou · 2022-06-03 01:50
  • Spanning Tree Protocol (STP)

    Spanning Tree Protocol (STP)

    The formation of broadcast storm caused by knowledge point combing switching network loop multi-frame replication MAC address table disorder spanning tree algorithm is divided into three steps: select root bridge (Root Bridge) select root port (Root Ports) select designated port (Designated Por)

    Shulou · 2022-06-03 01:49
  • Configuring Nginx Web Page Optimization in Linux system (1)

    Configuring Nginx Web Page Optimization in Linux system (1)

    Configure the Nginx hidden version number in the production environment, you need to hide the Nginx version number to avoid security vulnerabilities. Check the method to use the fiddler tool to view the Nginx version number on the Windows client. Use "curl-I" in the CentOS system.

    Shulou · 2022-06-03 01:49
  • Nginx semaphores (smooth restart / upgrade / reread log)

    Nginx semaphores (smooth restart / upgrade / reread log)

    TERM, INTQuick shutdownQUITGraceful shutdown gracefully shuts down the process, that is, close HUPConfiguration reload and Start the ne after the request ends.

    Shulou · 2022-06-03 01:49
  • Solve the problem that Exchange 2016 Chrome browser cannot log in to OWA and ECP

    Solve the problem that Exchange 2016 Chrome browser cannot log in to OWA and ECP

    I haven't written a blog for a long time. In fact, I have accumulated some things that I can write, and I am ready to share them one after another. Recently, I encountered a very strange problem. I built a test environment for Exchange 2016 on Azure, not to mention the process of building, Exchange 2016.

    Shulou · 2022-06-03 01:49
  • Implementation of IPv6 proxy IPv4web by nginx reverse proxy

    Implementation of IPv6 proxy IPv4web by nginx reverse proxy

    1. After the environment is ready, download the installation package to a directory (any directory can be used to store the downloaded Nginx installation package. Here, take the / root directory as an example) enter the directory command: cd / root download nginx installation package, this use case nginx-1.1

    Shulou · 2022-06-03 01:49
  • Construction of docker Private Warehouse

    Construction of docker Private Warehouse

    The development and operation of Docker container applications are inseparable from reliable image management. Although Docker officially provides a public image repository, it is very necessary to deploy Registry in a private environment in terms of security and efficiency. 1. Environment. 92, docker is private

    Shulou · 2022-06-03 01:49
  • Introduction to automation-what is automated operation and maintenance

    Introduction to automation-what is automated operation and maintenance

    With the increasing number of enterprise servers, after reaching hundreds or thousands of servers, the daily management of servers is becoming more and more complicated. If you update or deploy and manage these servers frequently every day, it is bound to waste a lot of time, and it is possible that human operations will also cause some negligence.

    Shulou · 2022-06-03 01:49
  • Why do I only choose it for the operation and maintenance management panel?

    Why do I only choose it for the operation and maintenance management panel?

    Many people ask, why do I use the admin panel? The reason is simple: the admin panel is a tool that can manage the usage of the server in an easier way. Back to the point, why did I choose cloud helpers among so many management panels in the first place? The reason is simple and rude: the interface is comfortable and fully functional.

    Shulou · 2022-06-03 01:49
  • Kvm basic Command 2

    Kvm basic Command 2

    1) View the port corresponding to the virtual machine [root@localhost ~] # virsh vncdisplay test01:0:0====5900:1====59012) suspend the virtual machine [root@localhos

    Shulou · 2022-06-03 01:49
  • 2.linux Log Server rsyslog+loganalyzer Construction

    2.linux Log Server rsyslog+loganalyzer Construction

    1. Basic environment build 1.1 system version cat / etc/redhat-release CentOS Linux release 7.3.1611 (Core) 1.2 turn off firewall systemctl stop

    Shulou · 2022-06-03 01:49
  • What is the core value of cloud video communication?

    What is the core value of cloud video communication?

    Apart from convenience and efficiency, where is the market value of cloud video conferencing? Cloud computing technology has greatly broadened the application scene of cloud video conferencing, and the customized application in vertical industry has changed it from traditional video communication tool to collaboration tool. With the development of communication technology such as 5G, cloud video conference is improving the efficiency of information transmission.

    Shulou · 2022-06-03 01:48
  • Zabbix-windows client installation

    Zabbix-windows client installation

    # zabbix client install [zabbix client download address] http://www.zabbix.com/downloads/3.0.4/zabbix_agents_3.0.4.win.zip is decompressed to C:\ Z

    Shulou · 2022-06-03 01:48
  • Mongodb configuration-replica set

    Mongodb configuration-replica set

    Mongodb configuration 192.11.11.11 is master node 192.11.11.12 is arbitration node 192.11.11.13 is standby node 1, download tar package https://fastdl.mongodb.or

    Shulou · 2022-06-03 01:48
  • KVM Project (3) Storage

    KVM Project (3) Storage

    KVM storage mode based on file system storage dir: directory format storage fs: disk partition storage neyfs: network shared file storage device-based storage Disk: physical hard disk storage Iscsi:iSCSITarget backend storage logical: logical volumes

    Shulou · 2022-06-03 01:48