Cloud Applications

Nagios + Nrpe Configuration Guide 1. preface for system staff, monitoring various running statuses of servers is one of the tasks. for a small number of servers, manual observation is not a problem, but it is too troublesome for server clusters, so

Linux garbled text: LANG variable tips for Linux users in China, a common headache is that the system often displays garbled text when displaying Chinese characters. for some reason, when a system requires an English interface, the system cannot

During the stress tests of the linux dns cache and NSCD service over the past two days, it was found that using webbench to press a domain name is several times slower than that of an IP address, and the nginx concurrency is also low when the domain

How to create a default site that can be accessed with an IP address/modify the default site keyword 1 create a default site 2 modify the default site 3 create a site accessed with an IP address start at wdcp2.2, you can directly create a default

Linux performance optimization 7: Cropping System Services 6: selecting IO scheduling algorithms http://www.2cto.com/os/201307/228389.html Generally, application services are deployed. for a single server, only a single service is provided. even

Fixed the problem that wubi installed ubuntu lost boot after Windows 7 was reinstalled. use wubi to install ubuntu, it provides a lot of convenience for our win7 and ubuntu systems, but once windows reinstalls the ubuntu boot item of the system, it

I believe many new users who want to learn linux are wondering what linux learning courses are good. the following small series will collect and organize several important tutorials for you to learn, if you want to learn more, go to the wdlinux

Install the rpm file method on Ubuntu (convert rpm to deb) the Ubuntu package format is deb. to install the rpm Package, use alien to convert rpm to deb. Sudoapt-getinstallalien # alien is not installed by default, so first install sudoalienxxxx...

Shell practice: ping the DNS01 for batch resolution of domain names and ping the DNS02 requirement for batch resolution of domain names: Read the domain name list from a file: 031 read the domain name list file. 04 the format of the list file is

Ubuntu KVM's Windows xp Virtual Machine cannot access the Internet to solve a problem that has recently encountered the xp Virtual opportunity, that is, after a network program crashes, the xp Virtual Machine cannot access the Internet, and the

Shell built-in command Shopt this built-in command changes the optional behavior of the extra shell. Shoptshopt [-pqsu] [-o] [optname & hellip;] switches the values of variables used to control various optional shell behaviors. If the option is not

Linux mount USB flash drive: mount: unknownfilesystemtype & amp; 39; ntfs & amp; 39; Linux mount a large mobile hard drive, which is troublesome. the mount: unknownfilesystemtype & amp; 39; ntfs & amp; 39; error. This is because Lin Linux mounts a

OpenVPN: OpenVPN can run on most common system platforms. it is a VPN solution based on SSL/TLS. OpenVPN can implement link between Layer 2 and Layer 3 based on the TAP/TUN virtual device driver, provide industry-level encryption function based on

This article is the best practice of Linux. it aims to show Chinese cabbage how to configure the Linux network. Linux systems have a large share in the server market, especially when the Internet is connected, 11.3 Linux network configuration Linux

Recently, I set up a B2B website (Lamp installation tutorial). The website test images cannot be uploaded. after checking that the images have been uploaded successfully, it is because php does not Recently, a B2B website (Lamp installation

Sftp command copy artifacts when you want to copy files from one server to a local, or even from one server to another. So, you don't have to look for a USB flash drive. you can use sftp, an artifact! Www.2cto.comsftptest@192.168.1.1 after entering

Executing the script that requires sudo privilege escalation on the remote server through ssh is a magical task. the powerful O & M can easily handle complicated tasks, the Daily O & M time of sb may not be able to solve the problem (ps: because he

I had to go home for two or three days and wanted fedora18 to get online. The first problem is that fedora does not have to install a driver for the wireless network card. you can only find the driver by yourself. After a long time, I found the

[Cacti monitoring] install cacti monitoring 1 under centos6.2 configure LAMP environment a install mysql database yum-yinstallmysqlmysql-servermysql-develb configure apache and phpyum-yinstallhttpdph... [cacti monitoring] install cacti monitoring

Red Hat Cluster Suite rhcs iv (concept) 1. what is RHCSRHCS short for RedHatClusterSuite, that is, Red Hat Cluster Suite, RHCS is a collection of cluster tools that provide high availability, high reliability, load balancing, storage sharing, and