Programmer Group

About cobbler Cobbler is a Linux server installation service. It can quickly install and reinstall physical servers and virtual machines through network boot (PXE). At the same time, it can also manage DHCP, DNS, etc. Cobbler can be managed in the command line mode, and also provides a Web-based interface management tool (cobbler Web), as wel ...

####Step 1: create a database Enter the database program directory. Here I am / opt/tmp/desktop/client, as shown in the figure below. The three programs Manager, DBCA and disql are mainly used. Double click 666 to run it. First run the DBCA program The following interface appears. We can see that this product is called Dameng database configu ...

RPM (Redhat Package Manager) is a common package manager for Linux distribution s such as Redhat, CentOS and Fedora. RPM tool can be used to make source installation package and binary installation package. This document provides an example to illustrate how to make an RPM binary package. 1. Preparation Install the programs required for packa ...

preface Tip: Here you can add the general contents to be recorded in this article: For example, with the continuous development of artificial intelligence, machine learning technology is becoming more and more important. Many people have started learning machine learning. This paper introduces the basic content of machine learning. Ti ...

origin The company wants to make a product. Of course, the environment is built before making the product. Most of the environments have been written before. Today, let's write about the installation of kafka. Step 1: download the installation package Download the kafka installation package. Mine is kafka_2.11-2.1.1. However, there are s ...

Today, I found a mentor who gave a server to CentOS7 to install an environment in R language to run R scripts. But since I have not learned and tried it, I would like to record the installation process and provide some ideas for future installations. After referring to some people's methods, we found that the R language version installed with ...

Process control Processes are the basic unit for managing transactions The process has its own independent processing environment (such as environment variables, the directory in which the program is running, which user is running the program, etc.) and system resources (such as processor CPU occupancy, memory, I/O devices, data and progra ...

On October 9, I published an article entitled**< Do you know the reason why the server generates a lot of TIME_WAIT? >**Articles On the day after the article was published, some readers pointed out my mistakes Here I would like to thank this reader in particular. I think every mistake is an opportunity for my own progress and growth ...

Version control gitlab Introduction to version control Version control refers to the management of changes in various program codes, configuration files and description documents in the process of software development. It is one of the core ideas of software configuration management. The main function of version control is to track file chan ...

1, Monitoring Linux TCP connection status 1.1 script for monitoring TCP connections The script needs to be placed on the corresponding ZABBIX agent server root@web1:~# vim /etc/zabbix/zabbix_agentd.conf.d/tcp_conn_plugin.sh #!/bin/bash tcp_conn_status(){ TCP_STAT=$1 ss -ant | awk 'NR>1 {++s[$1]} END {for(k in s) print k,s[ ...