linux sysadmin tools

installation): 1. Easy to operate, Batchshell can operate hundreds of servers at the same time as a single server. 2. Convenient management, Batchshell provides the service port automatic scanning function, can scan an IP segment of the available ports and save directly as a service. 3. Easy to install, simply download the Batchshell installation file to perform the installation on the Windows Management side without installing any agent services on the managed server (

[Linux] Very convenient file upload and download tools rz and sz File upload and download tools rz and sz on linux(This article is suitable for beginners of linux) [Used in SecureCRT ssh] Method 1: Install lrzsz directly using yum (recommended)Yum install lrzsz-yNote: after

From: http://mp.weixin.qq.com/s?__biz=MzA3OTgyMDcwNg==mid=2650625758idx=1sn= 856dda86869dfa29bf0bd652314eeb24scene=23srcid=0717ey5lrlvp2takzsafs4fz#rdNethogs: Show bandwidth usage for each process in case you want to know exactly which application is consuming your entire network resource# nethogs Eth0# nethogs-p Wlan0 #混杂模式来嗅探Netstat: Many Linux distributions are installed by default.Nagios: is a leading and powerful open source monitoring system tha

One. Data deletionCommand: RM-RF, remove any data directly from the hard drive without any hintRecommended Practice: Put the command arguments back: Rm-rfi Move the deleted items through the MV command to the/temp directory under the system, then write a script to perform the cleanup periodically Backup Two. Installation and use of ExtundeleteCommon open Source-based data recovery tools under

In addition to the previous article "Linux Common Network Tools: Route scanning traceroute" introduced in the Traceroute, General Linux also built-in another common route scanning Tool mtr.The MTR is better used in some ways than traceroute, and it can display the information of each hop routing in real time and constantly probe.Traceroute uses UDP packet probing

Monitoring indicators and indicators under Linux system viewI. Introduction of TOOLSThe Linux system uses the Nmon tool for resource monitoring. It helps to display all of the important performance tuning information on one screen and dynamically updates it without consuming a lot of CPU cycles, typically less than 2%. On the updated computer, its CPU utilization will be less than 1%. The Nmon tool can outp

Glances is a Linux, BSD open Source command-line system monitoring tool, which uses the Python language development, uses the Psutil library to collect the system data, can monitor the CPU, the load, the memory, the disk I/O, the network traffic, the file system, the system temperature and so on information. Compared to top/vmstat/iostat and other old monitoring tools, glances has the advantage of: Glances

不一样 说明被改动#删除重装[[emailprotected] Packages]# rpm -e zsh[[emailprotected] Packages]# rpm -i --replacepkgs zsh-5.0.2-28.el7.x86_64.rpm[[emailprotected] Packages]# rpm -V zsh #没有消息就ok8, Database reconstruction, the general database is damaged when used RPM {--INITDB|--REBUILDDB} [--dbpath directory] [--root directory]--INITDB: Initializes the database, currently no database can be initialized to create a new one;--REBUILDDB: Rebuilt, re-created by reading all installed packages on the cu

The latest 10 open-source stress/load testing tools in linux The load/stress testing tool can help you understand the execution of applications under load/pressure. It can expose problems and improve the performance. Therefore, load/stress testing is essential to ensure system operation efficiency. This article introduces 10 open-source load/stress testing tools.

: Creating the Repodata of the current directory#vim Centos-local.repo[Xen4centos]Name=xen 4 CentOS 6baseurl=file:///yum/repo/Gpgcheck=0To install the httpd service using Yum:#yum Groupinstall "Server Platform development"-YExplanation: Install package Group "erver Platform Development" and automatically answer Yes when installing#cd httpd-2.2.29Explanation: Go to the httpd directory#./configure--prefix=/usr/local/apache2--SYSCONFDIR=/ETC/HTTPD2Explanation: The installation path of the program i

Windows. However, after a period of use I think programmers will like Linux. Like the word in the Unix-haters Handbook: "The fundamental difference between Unix and the Macintosh operating system is." Unix is designed to programmers, whereas the MAC is designed to the users. (Windows, on the other hand, were designed to accountants. " Linux is a UNIX-like operating system,

Introduction to tools required for Linux for Power server-Linux Enterprise applications-Linux server applications. For more information, see the following. The 64-bit POWER architecture is recognized as a high-performance, reliable, and useful enterprise platform. It provides new options for UNIX and

For every system administrator or network administrator, it is very difficult to monitor and debug Linux system performance issues every day. I've had 5 years of experience working with Linux administrators and know how to monitor the system to keep it running properly. To do this, we have written 20 command-line system monitoring tools that are useful and most c

Article title: Linux kernel source code reading and related tools. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. With the gradual popularization of

ArticleDirectory Linux R D practice performance monitoring tools Abstract:This article summarizes eight very practical Linux Command Line performance monitoring tools. These commands support all Linux systems and can be used not only to monitor the system,

Very few: Introduction to common Linux tools. [Software Engineering]-Linux general technology-Linux technology and application information. For details, refer to the following section. OpenOffice writer: a text processor of OpenOffice.org office suite, used for document writing. It is compatible with Microsoft Word and

of virtual processors%cpu: Total CPU usageCPU: The number of CPUs used by the process.Command: Commands nameWhen reporting tasks and all thread global statistics:PID: Process IDUsr-ms: The number of milliseconds that tasks and child threads use at the user level.System-ms: The number of milliseconds that tasks and child threads use at the system level.Guest-ms: The number of milliseconds that the task and child threads use in the virtual machine (running a Vsan processor).Command: Commands name

The first is to install SSH service under Linux (root)Since the use of the Debian version is slightly different from otherInstallation Services Apt-get Install SSHTo see if the service is turned on for services SSH statusTurn on services service SSH startDownload SSH client Installation under WindowsSSH Secure Shell ClientSSH Secure File Transfer ClientClient connection is to fill in the Linux IP (pre-guara

which the RAM segment can be moved to a special disk segment of swap disk, where the page export and page import of virtual memory occur, and page export does not indicate a ram bottleneck. The virtual memory system often makes page exports to the memory segment, but the page import operation indicates that the server needs more memory, and the page import needs to copy the memory segment from swap disk back to RAM, causing the server to become slower.There are several ways to solve this proble

-related system calls -e Trace=file//records only system calls involving file names -e Trace=desc//records only system calls involving file handles There are other, including process,ipc,signal and so on. A classic, through the Strace view a process of all relevant open files of the process, refer to the "Linux strace Command (detailed) txt" sina ebook can download If the development program does not have a powerful tool to accompany, then the develop