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The pxe installation server written before forwarding: http://www.attacker.club/article/125 Service list dhcp: Assign IP addresses, specify startup files and tftp service addresses tftp-server: Transfer boot file http: Publish the iso image of CD-ROM pxelinux.0: The startup file of the system pxe is obtained by installing the syslinux packa ...

roles in ansible Roles can automatically load variable files, tasks and handlers according to hierarchical structure. Simply put, roles include variables, files, tasks, modules and processors in separate directories, and can be easily included. roles are generally used in host-based service building scenarios, but can also be used to build dae ...

Introduction to saltstack Saltstack is a C/S architecture configuration management tool based on Python. The bottom layer uses ZeroMQ message queue pub/sub mode to communicate, and uses SSL certificate issuance mode to manage authentication. Deployment is easy, it can run in a few minutes, scalability is good, it is easy to ...

pidof command The pidof command is used to query the PID value of a specified service process in the form of "pidof [parameter] [service name]. The process number value (PID) of each process is unique, so different processes can be distinguished by PID. For example, The following commands can be used to query the PID of t ...

Install Mysql Galera Cluster - Install MySQL Galera Cluster Offline offline Install Mysql Galera Cluster - Install MySQL Galera Cluster Offline offline 0. preparation 1. Prepare the server 1.1. Disable mysqld SELinux 1.1.1. disable SELinux for mysql 1.1.2. Disable SELinux directly 1.2. Firewall settings 1.2.1 ...

Preface Ao Tao is lucky to have the chance to try to learn K8S with a group recently. Xiaocai is a novice. He only knows that the logo of K8S is like a fishing net and a compass. Docker's logo is a whale carrying a container swimming in the sea. From Logo alone, there must be a great relationship between them. So I decided to ...

Operating environment Centos 7 DRBDADM_API_VERSION=2DRBD_KERNEL_VERSION=9.0.14DRBDADM_VERSION_CODE=0x090301 DRBDADM_VERSION=9.3.1 Corosync Cluster Engine, version '2.4.3' Pacemaker 1.1.18-11.el7_5.3 crm 3.0.0 Network Topology Installation configuration steps Install DRBD/Corosync/Pacemaker/Crmsh Reference for installation and ...

I. Saltstack's api Salt-api has two ways, one is in the form of functions, there are well-defined functions, we can call directly, directly write python code to call functions or classes. The second form is that salt-api has an encapsulated http protocol. We need to start a server. Installation: yum install –y salt-api 1. Load ...

Django Architecture CentOS 7 system is compatible with Python 2 and Python 3. This project is based on Python 3 environment. Install Django CentOS 7 System Installation django pip3 install django Create the Django project dataPlatform under Windows and add the following code to set.py: #In the MIDDLEWARE_CLASSES ...

demand One of our services needs to be able to access the stored data by mounting the data directory on the shared storage, so as to achieve high availability of multi-node clusters. Previous blog posts pacemaker+drbd dual master We use drbd+gfs2 to implement it. Is there a simpler way? This article will introduce iscsi+pace ...