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  • Linux knowledge point 1

    Linux knowledge point 1

    Common ports and services 21/tcp FTP file transfer protocol 22/tcp SSH secure login, file transfer (SCP) and port redirection 23/tcp Telnet insecure text transfer 25/tcp SMTP Simple Mail

    Shulou · 2022-06-03 08:48
  • Windows Server 2016DB 2019 install Li

    Windows Server 2016DB 2019 install Li

    Since Win 10, Microsoft operating system has built-in support for Linux subsystem. Win 10 has its own Microsoft Store App Store, so you can install Linux subsystem directly, but in Server 2016

    Shulou · 2022-06-03 08:48
  • Network topology diagram of K8S cluster installation and deployment

    Network topology diagram of K8S cluster installation and deployment

    First, the network implementation topology figure 2, Proxy host (master&standby) 1. The mainframe is 10.3.153.211 (test-master) and 10.3.153.212 (test-standby) 2. Installation

    Shulou · 2022-06-03 08:48
  • Rootkit under unix

    Rootkit under unix

    The traditional Rootkit is a more insidious backdoor than an ordinary backdoor. It achieves its goal mainly by replacing system files, which makes it more hidden and makes detection more difficult. Traditional Rootkit is mainly aimed at Unix platforms, such as Linux, AI

    Shulou · 2022-06-03 08:48
  • Raid5 lost 2 hard drives and recorded the recovery process of the inactive hot spare.

    Raid5 lost 2 hard drives and recorded the recovery process of the inactive hot spare.

    [brief introduction to Raid5 Array data recovery] A successful case of raid5 disk array data recovery was recorded today. First of all, a brief introduction to the basic configuration of the server that requires data recovery: the client's server device is EMC storage, raid5 disk array, and consists of multiple stat.

    Shulou · 2022-06-03 08:48
  • Kubectl create Service report no matches versio

    Kubectl create Service report no matches versio

    Failure phenomenon: execute kubectl create-f filebeat.yml to report an error as follows: error: unable to recognize "filebeat.yml": no matches f

    Shulou · 2022-06-03 08:48
  • Centos 7 install and configure vsftp service (virtual user login)

    Centos 7 install and configure vsftp service (virtual user login)

    1. Experimental environment operating system: CentOS 7 2, installation shutdown SELINUX:vim / etc/selinux/configSELINUX=disable temporary shutdown: setenforce 0 3, installation of vsftpd service

    Shulou · 2022-06-03 08:48
  • Use bat script to test the duration of DNS message failure

    Use bat script to test the duration of DNS message failure

    Use the bat script to test the expiration time of the DNS message. Configuration of named.xx.zone in CentOS6.4: $TTL=7D3D; minimum test results: stop the DNS service. If the minimum period of 3 days is not reached, the DNS information will become invalid.

    Shulou · 2022-06-03 08:48
  • Performance of Infortrend CS distributed NAS Cluster strengths

    Performance of Infortrend CS distributed NAS Cluster strengths

    Embedded storage system, integrated cluster, more advantages in performance using self-developed embedded architecture, minimalist IO processing instructions, so that the hardware to maximize performance. Product software and hardware integrated design, give full play to the advantages of software and hardware to the best state, a single system can provide up to 100

    Shulou · 2022-06-03 08:47
  • MASQUERADE-- random port is not random

    MASQUERADE-- random port is not random

    Iptables-t nat-A POSTROUTING-o xxxx-j MASQUERADE-- random found that the source port is not random but increases regularly. After searching by Google, a new version is found.

    Shulou · 2022-06-03 08:47
  • Reading the Technical Manual of UNIX/Linux system Management (4)

    Reading the Technical Manual of UNIX/Linux system Management (4)

    2016. 8. 14 21:40-22 Because they are similar friction between FRICTION BETWEEN UNIX AND LINUX1.3 UNIX and Linux

    Shulou · 2022-06-03 08:47
  • Virtual machines: three virtual machines are interconnected and connected to the network

    Virtual machines: three virtual machines are interconnected and connected to the network

    Virtual machine: three virtual machines are interconnected and connected to the network directory: first, virtual machine 1. Related software 2. Virtual machine installation 3. Multiple virtual machines are interconnected and connected to the Internet 2, multiple virtual machines are interconnected and connected to the network: three virtual machines are in "host-only mode" three virtual machines: Server2016-3 Ser

    Shulou · 2022-06-03 08:47
  • Kubernetes binary deployment (II) Multi-node deployment

    Kubernetes binary deployment (II) Multi-node deployment

    This is the second article of kubernetes binary deployment. If you haven't read the first article before, you can take a look at the following: Kubernetes binary deployment (1) single node deployment experimental environment: load balancing: Nginx1:192.168.35.104/24

    Shulou · 2022-06-03 08:47
  • Delete empty folders and files bat

    Delete empty folders and files bat

    Open the link: www.intelliadmin.com/index.php/downloads/ finds the specific parameter DelEmpty.exe OPTIO of Delete Empty under Free Utilities

    Shulou · 2022-06-03 08:47
  • Mariadb 10.3 uses mariabackup backup as the master

    Mariadb 10.3 uses mariabackup backup as the master

    Mariabackup is a new branch of Mariadb based on xtrabackup, which has been installed with mariadb by default. 1. The master database creates a master-slave account grant replication slave on *. *

    Shulou · 2022-06-03 08:47
  • The cursor of Windows7 moves very slowly

    The cursor of Windows7 moves very slowly

    1. The mouse cursor suddenly moves very slowly, which is very difficult in the process of moving, because of the problem of explorer desktop program. 2. Right-click the menu bar below the desktop and select character Management. 3. Press the letter e on the keyboard to find the explorer program, select the cursor, and then right-click

    Shulou · 2022-06-03 08:47
  • Use ab stress test

    Use ab stress test

    Ab, the abbreviation of Apache Benchmark, is a web stress testing tool developed by Apache. It has the advantages of easy to use and powerful statistical function. Install yum install apr-utilubuntu under centos

    Shulou · 2022-06-03 08:47
  • Zhijian Rubik's Cube DCIM helps smooth data Center Operation

    Zhijian Rubik's Cube DCIM helps smooth data Center Operation

    Today, many data center operators still use spreadsheets to manage their assets. Some related articles have pointed out that when organizations track IT assets manually, the average error rate can reach 15% or more. The use of excellent IDC management system has a significant and positive impact on the profits of data center operations. Such as

    Shulou · 2022-06-03 08:47
  • Bochs installation steps

    Bochs installation steps

    OS: centos7.6 18101, download axel-n 50 https://jaist.dl.sourceforge.net/project/bochs/bochs/2.6.10/bochs-2

    Shulou · 2022-06-03 08:47
  • The number of change processes optimized in depth by Nginx and the configuration of web page compression

    The number of change processes optimized in depth by Nginx and the configuration of web page compression

    Nginx in-depth optimization of the number of change processes and configuration of web page compression preface ​ this article will introduce the number of Nginx change processes and configure web page compression. 1. Change the number of processes ​ in a high concurrency environment, you need to start more nginx processes to ensure fast response and avoid blocking. Can be used

    Shulou · 2022-06-03 08:47