• Installing open source antivirus software ClamAV on CentOS system


    ClamAV is an open source antivirus engine developed by Sourcefire, which is also the owner of Snort Intrusion detection engine. ClamAV provides a more rapid and flexible framework for detecting malicious code and software products. It can be used as a supplementary tool or alternative product for existing desktop computers, file servers, mail servers and […]

  • The method of installing mind map software XMIND in CentOS system


    When it comes to open source, cross platform mind mapping software, you may first think of FreeMind. Today, I’m going to introduce another mind map software that is also open source and cross platform, which is XMIND. As far as my trial is concerned, XMIND is no inferior to FreeMind in terms of function. In […]

  • How to use hostnamectl command in centos7


    In centos7, a new instruction of hostnamectl is added in the host name change, which is more convenient in output and change than before. Let’s take a look at the help information of hostname Copy code The code is as follows: [[email protected] ~]# hostnamectl –helphostnamectl [OPTIONS…] COMMAND …Query or change system hostname. -h –help Show […]

  • Install quota in CentOS system to manage disk quota


    In the work of network management, due to the limited resources of hard disk, it is often necessary to set Linux disk quota for multi-user servers. This function is necessary for public multi-user servers (free or charged). Quota is a tool to realize Linux disk quota under red hatlinux. Quota only supports a separate mount […]

  • Methods of viewing system information and configuring firewall on CentOS


    View system information 1: View CPU Copy code The code is as follows: more /proc/cpuinfo | grep “model name” grep “model name” /proc/cpuinfo If you feel you need to see more comfortable Copy code The code is as follows: grep “model name” /proc/cpuinfo | cut -f2 -d: Well, linux commands should be so familiar. 2: […]

  • How to build MySQL master-slave server on centos7


    This paper mainly introduces how to build the master-slave server of MySQL on CentOS. If you haven’t built one, you can check my previous blog, which contains detailed instructions for installing CentOS and installing MySQL on CentOS. 1、 Install from virtual machine: 1. Right click > Manage > clone 2. Select the complete clone 3. […]

  • How to install and configure CEPH in CentOS


    Developing a distributed file system requires many efforts, but if the problem can be solved accurately, it is priceless. CEPH’s goal is simply defined as: easily scalable to petabytes of capacity, high performance for multiple workloads (input / output operations per second [IOPs] and bandwidth).Unfortunately, these goals compete with each other (for example, scalability can […]

  • Installation and basic use of OpenVZ virtual machine on CentOS system


    OpenVZ is an open source software, which is based on Linux platform operating system level server virtualization solution. OpenVZ adopts the core of virutozzo Virtualization Server software product of swsoft. Virutozzo is a commercial virtualization solution provided by swsoft company.OpenVZ can create multiple isolated virtual private servers (VPS) on a single physical server and share […]

  • Collation of common configuration items in configuration files of pureptp under CentOS


    RPM uses another configuration file by default: /etc/sysconfig/pure-ftpd Please don’t forget to browse http://www.pureftpd.org/documentation.html To view the full list of options. Restrict all users to their home directory Copy code The code is as follows: ChrootEveryone yes If the previous instruction is set to “no”, the members of the following group (GID) are not restricted […]

  • Skills of using RPM package manager in CentOS system


    rpm: redhat package manager, RPM is Package ManagerRpm is a software package management method developed by red hat company. With RPM, we can easily install, query, uninstall and upgrade the software. However, the dependency between RPM packages is often cumbersome, especially when the software is composed of multiple RPM packages.Naming of RPM packages For example, […]

  • Basic usage strategy of Yum package manager under CentOS


    1. What is Yumyum : Yellow dog Updater, ModifiedThe main function is to add / delete / update RPM package more convenientlyIt can solve the dependency problem of package automaticallyIt is easy to manage a large number of system update problemsYum featuresMultiple repositories can be configured at the same timeSimple configuration file (/ etc/ yum.confAutomatically […]

  • The method of changing network card number and configuring static route in CentOS dual network card


    Change the number of the network cardWe often find that Linux system often recognizes the first network card as eth1, and the second network card as eth0But in the server hardware label is not the same, this may produce the illusion in our server management processYou can use the nameIf command to rename the network […]