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  • Qt lesson 5 No constructor can accept source type, or the decision of constructor overloading is not clear

    Qt lesson 5 No constructor can accept source type, or the decision of constructor overloading is not clear

    Scenario QJsonArray rgParams = {10,20,30,40}; the C11 standard supports the initialization list syntax of this class only if there is an error in compiling the code, so if the current version of VS is too low, you must adjust the existing code, such as

    Shulou · 2022-06-02 20:32
  • Port aggregation

    Port aggregation

    one。 Technical principle 1) Port aggregation (also known as link aggregation), which physically connects multiple ports on the switch and logically bundles them together to form a port with large broadband, which can achieve load sharing and provide redundant links. 2) Port aggregation uses EtherChan

    Shulou · 2022-06-02 20:31
  • Navicat connection SQL Server reported an error of 08001

    Navicat connection SQL Server reported an error of 08001

    After installing SQL Server, I used Navicat to connect to the server, but both life and death reported me an error of 08001. Finally, I modified the port myself. The format has always been [IP address]: [port], actually [IP address], [port] combined with specific summary on the Internet.

    Shulou · 2022-06-02 20:31
  • Move the client host to the specified OU

    Move the client host to the specified OU

    # move the client host to the specified OU # V1.0 #

    Shulou · 2022-06-02 20:31
  • WxWidgets lesson 18 shutdown program exception

    WxWidgets lesson 18 shutdown program exception

    Indicates that in an existing wxWidgets project, the program does not exit normally when you click the close button in the program window. Normal exit situation: thread 0x6c8 has exited with a return value of 0 (0x0). Thread 0x8ec exited with a return value of 0 (0x0

    Shulou · 2022-06-02 20:31
  • Storage location of EXCHANGE transaction log and mailbox database

    Storage location of EXCHANGE transaction log and mailbox database

    If only a single copy of the database is deployed, the transaction log files should be located on a different set of physical disks from their corresponding Exchange Server database files. Second, if you want to implement DAG, you do not need to separate the database copy from the transaction log file, because it is hosted on another

    Shulou · 2022-06-02 20:31
  • Mount the windows shared directory to the linux

    Mount the windows shared directory to the linux

    Mount-t cifs-o username= "WEB", password= "1qaz2wsx" / / 192.168.10.209/svnbackup//mnt/svnbackup Note: windo

    Shulou · 2022-06-02 20:31
  • Modified setting method of CredSSP encryption for win10 Home Edition

    Modified setting method of CredSSP encryption for win10 Home Edition

    one。 First, open group policy 1. Write a gpedit_policy.dat file locally on the machine with an arbitrary name as follows: @ echo off pushd "% ~ dp0" di

    Shulou · 2022-06-02 20:31
  • IBM X3650M3 installs windows 2003 server Standard sp2

    IBM X3650M3 installs windows 2003 server Standard sp2

    1. Prompt that the iso file of the hard disk operating system is missing. The solution: if you can't use the serverguide,serverguide9 version of the IBM driver, you will be prompted that the file is corrupted and you need to use the serverguide8 version.

    Shulou · 2022-06-02 20:31
  • Introduction of 10G Optical Module and 40G Optical Module 100G Optical Module

    Introduction of 10G Optical Module and 40G Optical Module 100G Optical Module

    Optical modules can be classified according to package classification (SFP,SFP+,XFP,XENPAK), transmission distance classification, wavelength classification, and rate classification (10G/40G/ 100G optical module). Next, it mainly describes 10G/4.

    Shulou · 2022-06-02 20:31
  • Set up mysql database

    Set up mysql database

    # install the compilation tool and plug-in yum-y install\ gcc\ gcc-c++\ make\ ncurses\ ncurses-devel\ bison\ cmake# to establish the database program user useradd

    Shulou · 2022-06-02 20:31
  • Exchange server backs up and restores messages

    Exchange server backs up and restores messages

    When users use the client to access their personal mailbox, sometimes the mail will be deleted because of some misoperation. If the mail contains important information, it will bring great inconvenience and loss to the enterprise. For exchange administrators, it is a very important job to be able to recover deleted mail quickly.

    Shulou · 2022-06-02 20:31
  • Non-relational database-redis cluster

    Non-relational database-redis cluster

    Redis cluster, experimental environment, two servers, six nodes, each server, three network cards, six nodes, three masters, and three replica master servers install Redis [root @ localhost ~] # yum install gcc gcc-c++ m

    Shulou · 2022-06-02 20:31
  • Principle and Workflow of ansible Architecture

    Principle and Workflow of ansible Architecture

    1. Ansible introduces ansible as an automatic operation and maintenance tool, which is developed based on paramiko module for batch execution and release work, and is widely used in daily operation and maintenance work. II. Ansible architecture diagram: introduction of ansible core modules

    Shulou · 2022-06-02 20:30
  • AWK study notes

    AWK study notes

    Learning idea: AWK command line writing consists of three parts: BEGEN Program END: executed before AWK reads the input stream text line processing, used to initialize variables, define output header information Program: define how to deal with read data, by two parts

    Shulou · 2022-06-02 20:30
  • H3C R4900 G2 server installs the system through HDM

    H3C R4900 G2 server installs the system through HDM

    H3C R4900 G2 server installs the operating system http://www.d supported by the WINSERVER2008R2SP1 system H3C R4900 G2 server through HDM installation system H3C R4900 G2 server via HDM

    Shulou · 2022-06-02 20:30
  • Exchange High availability

    Exchange High availability

    High availability considering business continuity impact time-high availability data impact-disaster recovery hardware redundancy (high availability) application redundancy (Exchange) client connection: Exch

    Shulou · 2022-06-02 20:30
  • Nginx self-built certificate is accessed by https

    Nginx self-built certificate is accessed by https

    1. Generate self-signed ssl certificate mkdir / ssl create a folder for ssl certificate openssl genrsa-des3-out domain.key 102generate RSA key (process requires setting a password, remember this secret

    Shulou · 2022-06-02 20:30
  • Windows2012 R2 Domain Policy set

    Windows2012 R2 Domain Policy set

    Windows2012 R2 domain policy set is commonly used by many enterprises for the domain environment, and it is the most convenient for the domain policy management machine. The following is what I have encountered in practice, and I believe it is also very practical for enterprises. So if there are any errors and other practical applications in the records here

    Shulou · 2022-06-02 20:30
  • Born for cross-cloud management: cloud butler helps enterprises manage cloud resources efficiently

    Born for cross-cloud management: cloud butler helps enterprises manage cloud resources efficiently

    As the cloud has become an indispensable IT infrastructure for more and more enterprises, in order to meet different business needs, many enterprises have the situation of multiple clouds. The problems brought by multi-cloud are also obvious, including the difficulty of unified management of a variety of cloud platforms, a significant reduction in the efficiency of resource operation and maintenance, high enterprise costs and so on. In this

    Shulou · 2022-06-02 20:30