Cloud Applications

The head and tail are just as easy to understand as their names. they are used to display a certain number of text blocks at the beginning or end, and the head is used to display the beginning of the file to the standard output, and tail is the end

Name top permission: Usage of all users: top [-] [ddelay] [q] [c] [S] [s] [I] [n] [B] description: does the process dynamically display in real time? D: change the display update speed, or press sq in the interactivecommand column: display without

This section roughly summarizes the compression and decompression methods for various formats of compressed packages in linux. However, I have not used some of the methods. I hope you can help me with them. I will modify them at any time. thank you!

Author: With the expansion of Linux applications, Cao Jianghua many friends began to contact Linux. based on Windwos learning experience, they often felt a bit confused: I do not know where to start learning. Here are some suggestions for learning

Nowadays, more and more people choose open-source Linux operating systems, which is not inferior to Windows performance and approachable price, which is the best reason for people to choose it, redHatLinux9 is the most widely used Linux operating

#! /Bin/bashecholinuxclearlogecho & nbsp; the byknlve2008-08-29echo # & nbsp; chmod777log #. /lo #! /Bin/bashEcho "linux clear log"Echo "by knlve 2008-08-29"Echo "=================================="# Chmod 777 log#./Log xx. xx And./log root If [-f "/

Kanwi.cn has a web server with a daily traffic of about 0.1 million. There are several virtual hosts on it. recently, Squid2.6 has been installed for WEB acceleration. Squid and Apache are both on the same server. The effect is very obvious, many

The remote connection in Ubuntu takes into account the computer. if CapsLock is enabled but uppercase letters cannot be entered, Shift + Letter can be used to input uppercase and lowercase letters. The solution found on the internet is as follows:

& Nbsp; mount/dev/cdrom/media/cdromrpm-qa | grepsamba to start servicesmbstart/etc/init. d/smbstart we share a directory: This directory allows a group to read and write the second step (groupaddshare creates a user share  Step 1MountMount/dev/cdrom/

& Nbsp; requirements: configure the telnet server and use xinetd to implement the following access control functions 1. the maximum number of connections to the telnet server is 20 2. if the number of telnet requests per second reaches 4, the

& Nbsp; The XP and ubuntu dual systems were installed, and when XP re-adjusted the partition, it accidentally knocked out the partition where ubuntu was located, because grub of ubuntu is used for multi-system boot, XP cannot be entered. the system

& Nbsp; 1. access websites and news groups related to Linux, and even directly talk to investors of open-source software by phone to fully understand the operating status of Linux and ultimately destroy Linux. 2. employ a large number of Linux

& Nbsp; Windows XP was reinstalled some time ago. in order to save time, a Ghost version was directly installed, but then it was added to Fedora, which was no longer accessible to the network, but the network card can be seen through ifconfig.

& Nbsp; after installing httpdhttpd-develpam-develsubversionsubversion-perl with rpm, cpanSVK can complete svk installation. Step 1 of enabling ssl for http: create key and request: opensslreq-new & gt; new. cert. csr  Install with

Webmin-Web page management LinuxWebmin is currently the most powerful Web-based Unix system management tool. The administrator accesses various management functions of Webmin through a browser and completes corresponding management actions.

① First, we must ensure the absolute security of our servers. I usually set the root password to more than 28 characters, and only a few people must know the root password for some important servers, this is set based on the company's permissions.

The printer configuration tool (printtool) is used to maintain the etcprintcap, counterfeit offline print buffer pool, and print filter print filters allow you to print a variety of types of documents, including: plain text ( The printer

In our daily work, we often need to install the same Linux on multiple computers with identical hardware, especially for cluster applications or backup database servers. I am part-time Lin In our daily work, we often need to install the same Linux

I. INTRODUCTION in modern operating systems, multiple kernel execution streams may be executed at the same time. therefore, like multi-process and multi-thread programming, the kernel also needs some synchronization mechanisms to synchronize the

A unix operating system is one of the most frequently used operating systems on the network. it is much more complicated to shut down a computer on a UNIX system than to shut down a single user computer on a DOS system. If this parameter is not used