Linux

Pache Maven is a software (especially Java software) project management and automated build tool, provided by the Apache Software Foundation. Based on the concept of the Project object Model (POM), Maven uses a central piece of information to manage

How to modify the host name in CentOS1. Temporarily modify the host name display Host Name:Spark @ master :~ $ HostnameMasterModify host name:Spark @ master :~ $ Sudo hostname hadoopSpark @ master :~ $ HostnameHadoopPS: the above changes are only

CentOS source code and compilation process Source code of Centos Http://vault.centos.org//7.0.1406/ OS /Source/SPackages/ Standard Linux Kernel Https://www.kernel.org/ Download source code: Wgethttp: // vault.centos.org//7.0.1406/ OS

Centos root file system /The following files /Boot: files related to system startup, such as kernel, inittrd, and MBR grub /Dev: device file: Block devices: Random Access, data blocks such as USB Character device: Linear access. Unit: Mouse, buttons,

Ubuntu kernel update switch kernel startup 1. view the kernel commands to be updated: Apt-cache search linux This command will display all available kernels 2. Run the following command to install the kernel: 2.6.39-0. Sudo apt-get install

Chapter 5 Exercise 1 and Chapter 5 exercise Question: Use setvbuf to implement setbuf Both functions change the stream buffer mode. The function prototype is as follows: # Include Void setbuf (FILE * fp, char * buf ); Void setvbuf (FILE * fp, char *

Detailed explanation of tcpdump parameter usage in CentOS For programmers and developers in centos, especially network programmers, who often need to analyze data packets, tcpdump will be used. The following describes how to use tcpdump.(1) tcpdump

LAMP website architecture Solution Analysis The LAMP (Linux-Apache-MySQL-PHP) website architecture is currently a popular Web framework, which includes: Linux operating system, Apache network server, MySQL database, perl, PHP, or Python programming

Modify the default SSH port number in CentOS/Linux In Linux, the default SSH port number is 22. Because this is a known port number, port 22 is scanned when an intruder scans the port, we can immediately know that this is the port number for SSH

Support and test SPDY added to Nginx Install spdyNginx supports spdy format from 1.5.Http://nginx.org/en/docs/http/ngx_http_spdy_module.html#example Of course, the latest nginx is also supported, which is spdy3. Directly add the parameter:-with-http_

CentOS/Linux dual-nic is bound to a single IP address, and nic hot standby With the development of technology, four Gigabit Ethernet NICs have become the standard for servers. In the production environment, to ensure the network stability of the

Why can't I use Memcached to store sessions? Memcached creator dormano wrote two articles [1] [2] very early and warned developers not to use memcached to store sessions. The reason he gave in the first article is that if memcached is used to store

Nagios reports NRPE: Command 'check _ heartbeat 'not defined Recently, during heartbeat monitoring, the nagios server prompts an alarm: NRPE: Command 'check _ heartbeat 'not defined However, on the nagios client/usr/local/nagios/libexec/check_nrpe-

LVS + Keepalived achieves layer-4 load and high availability A new project is going to be launched recently and requires soft loads. I decided to use nginx as a reverse proxy. However, after nginx is installed, I found that nginx cannot display css

RedHat Linux 5 build ftp-based yum Server YUM is Yellow dog Updater, short for Modified. It is a plan initiated by Duke University to solve the problem of RPM dependency, it is convenient for users to install and upgrade software. It is particularly

Deploying Java Web applications in Tomcat There are two ways to deploy Java Web applications in Tomcat: static deployment and dynamic deployment. I. Static deploymentStatic deployment refers to the deployment of our programs before the server starts.

Linux Virtual Host Configuration I. OverviewA Virtual Host, also known as a Virtual server, Host space, or webpage space, is a network technology that allows multiple Host names to operate on a single server, in addition, each host name can be

Apache rewrite configuration in CentOS 1. Rewrite Rules:The main function of Rewirte is to implement URL jump. Its regular expression is based on the Perl language. It can be based on the server-level (httpd. conf) and directory-level (. htaccess)

Install and configure vsftpd on CentOS My production environment is Centos5.6. To provide the ftp service, I found a relatively small ftp server software, vsftpd (the name of vsftpd stands for "very secure FTP daemon ", security is one of the top

Mysql database load balancing configuration and Optimization Server Load balancer configuration and cluster setup I. Introduction==========This document describes how to install and configure a MySQL cluster based on two servers. MySQL can continue