linux system administrator tutorial

Article Title: How to Become a qualified Linux system administrator. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded

One of the most important tasks for Linux system administrators is to be responsible for system kernel upgrades. It is very important for the stability of Linux system to do well to upgrade the kernel of the system. But few dared

Users and system administrators often need to run commands regularly. For example, a system administrator might want to run a program that clears the directory of staging files (/tmp and/var/tmp) from old files to avoid full disk because not all programs clean up their staging files correctly. Cron service is doing this. Each user has a crontab that lists the co

Article Title: How does a Linux system administrator know what a user is doing. Linux is a technology channel of the IT lab in China. Including desktop applications, Linux system management, kernel research, embedded systems, open

15 practical Linux/Unix tape management commands for the system administrator Tape equipment should only be used for regular file archiving or data is transferred from one server to another. Generally, tape devices are connected to Unix machines and controlled by mt or MTCs. We strongly recommend that you back up all data to disks (maybe in the cloud) and tape de

Changing Linux System Administrator skills How long ago did you compile the kernel? The answer to the new generation of Linux administrators is simple: I have not compiled the kernel. I have never compiled the kernel. Of course I am not sure about it. I really can't think of why I need a custom kernel, so I just used m

Tags: tools nis span pos style lam Extensible pack sedLinux system administrator Prerequisites:Linux System Administration Toolkit Series Rollup Linux system administrator must seeVandyke SecureCRT 6.1.3 Attached special documents

application. The persistence layer (data access layer), the business logic layer, the presentation layer and the expression layer adopt the MVC architecture pattern, differentiate into the model, the view, the control three parts Outlines how you can import Internet traffic into a subnet. Nat principle Do you know anything about virtualization? Does it use? Virtualization refers to virtualizing a computer into multiple logical computers through virtualization technology. What is the

The Linux system administrator should know the monitoring tool. if you want to monitor the performance of the Linux server, try the built-in shell commands and some additional tools. Many Linux distributions have tons of monitoring tools. These tools provide measurable infor

and outbound traffic. You can install it using the following method:Yum Install nloadOrsudo apt-get install nloadSmokeping.Smokeping can keep track of your network latency and visualize them. There are various delay measurement plugins developed for the smokeping. If the graphical user interface is important to you, there is now a plug-in being developed to implement this functionality.Mobaxterm.If you're working in a Windows environment all day. You may feel the limitations of Windows under th

/]:[http://sebastien.godard.pagesperso-orange.fr/]:[http://goaccess.io/]:[[]: http://whowatch.sourceforge.net/[http://www.webmin.com/]:[Https://github.com/opsengine/cpulimit]:[https://www.serverdensity.com/server-monitoring/]:[http://www.opennms.org/]:[http://sysusage.darold.net/]:[Up]: http://www.pcp.io/[Https://userbase.kde.org/KSysGuard]:[+]: http://munin-monitoring.org/[http://www.nagios.org/]:[http://www.zenoss.com/]:[http://www.cacti.net/]:[[i]: http://www.zabbix.com/[https://collectd.org/

First Level: General administrator1, Characteristics: can understand the concept of zoning, know how to install Linux system and common database, desktop Manager, application software, etc., can do some basic configuration (such as network, printer, modem, etc.), refer to the information at hand to install and configure common services (such as NFS, HTTP, FTP, TELNET, SSH, LDAP, NIS, mail Service, SAMBA, pr

-AUXF | Sort-nr-k 4 | Head-10Find the top 10 processes with the most CPU# PS-AUXF | Sort-nr-k 3 | Head-10Free commandfree [-b|-k|-m][-o][-s delay][-t][-v]Instruction Introduction-B Displays memory usage in bytes.-K displays memory usage in kilobytes.-m displays memory usage in megabytes.-O does not display buffer throttling columns.-s-T displays the memory sum column.-V Displays version information.Output numerical interpretationTotal used free shared buffers Cachedmem:3266180 3250004 16176 0 11

visualize inbound and outbound traffic. You can install it using the following method:yum install nloadOrsudo apt-get install nloadSmokeping.Smokeping can keep track of your network latency and visualize them. There are various delay measurement plugins developed for the smokeping. If the graphical user interface is important to you, there is now a plug-in being developed to implement this functionality.Mobaxterm.If you're working in a Windows environment all day. You may feel the limitations o

services, aiming to promote the process of Guangdong's Linux industry and improve the application level of Linux technology. This project will comply with the National Computer Information high-tech examination standards and requirements, the guidance center for vocational skills appraisal of Guangdong Provincial Department of Labor and Social Security and the Public Service Technical Support Center for

test whether your domain Name system is working properly. Domain Name server (DNS) helps resolve URLs to a set of application servers. However, you will find that some URLs cannot be parsed, which can lead to application connectivity issues. For example, suppose you try to access your database from the host of the application. You receive a "Cannot parse" error. To troubleshoot, you try to use the Dig (DNS query tool) or nslookup (query Internet name

30 Linux practical commands required by the system administrator In this article, we will introduce some practical and commonly used Linux or Unix commands, which are commonly used by Linux system administrators. This article is

Ideally, the system administrator will grow in LinuxGuideThe first time I saw that the Linux operating system was running in my first job, it was around 2001. At that time, I was a customer manager in an Australian automotive supplier and shared an office with the company's IT engineers. He made a CD burning workstatio

The system administrator (SysAdmins) is responsible for the daily maintenance of production systems and services. One of the key tasks is to ensure that functional services work 24 hours a day. For this, they have to be careful. Plan backup methods, disaster management strategies, scheduled maintenance, security audits, and more. As with any other management, system