Linux

I studied the error messages in the nginx cache for two days.After I modified the configuration file, I still reported an error.Location ~ /Purge (/.*){Allow 127.0.0.1;Allow 192.168.0.0/24;Deny all;Proxy_cache_purge cache_one $ host $1 $ is_args $

Articles on the establishment of the Hadoop + Zookeeper + HBase platform on the Internet can be said to be overwhelming and numerous. Here we will publish a very basic document left behind when we configure this platform, for your reference, you are

I. Samba IntroductionSamba is a software that allows Linux systems to Apply Microsoft network communication protocols. SMB is short for Server Message Block, that is, Server Message Block. SMB is mainly used as Microsoft network communication

Postfix script configuration #! /Bin/bash # This is a email server configure script POSTFIX =/etc/postfix/mian. cf defines the location of the mail configuration file DOVECOT =/etc/dovecot. conf defines the mail pop3 configuration file

The Sqoop tool connects to a relational database in a Hadoop environment and serves as a bridge to the hadoop storage system. It supports the import of multiple relational data sources and hive, hdfs, and hbase. Generally, relational data tables

I am currently using the nagios + cacti combination, without considering zabbix, but the leader asked me to engage in zabbix, and there was no way to get involved. Only first. Just start the environment. The specific use is not studied. We tested

1. Before installation, check whether libevent exists in the system because memcached depends on this package. View: Command: rpm-qa | grep libevent Displayed package: libevent-1.4.13-4.el6.x86_64 At this point, the system has been installed, You

If the following configuration commands are unclear, refer to the translated VCL manual (see!   1. What is varnish? 1. varnish is a reverse proxy server and a web acceleration cache server. The cached objects are stored in the form of key/value.

Many may not be familiar with the PPTP configuration in Linux. Below I have written a simple Shell script, which can be directly saved and executed by pptp. sh. 1. Script: yum remove-y pptpd pppIptables -- flush POSTROUTING -- table natIptables --

Record it so that you do not forget it.1. Install nginx.Nginx-1.4.5. :Http://nginx.org/download/nginx-1.4.5.tar.gz (Check whether a pcre exists before installation. If not, run yum .)Download and decompress the package. Create the user www and User

Sqoop2-1.99.2-cdh4.5.0 encountered various NoClassDefFoundError exceptions during installation, such: Exception sending context initialized event to listener instance of class org. apache. sqoop. server. ServerInitializerJava. lang.

When the size of a data set exceeds the storage capacity of a single physical machine, we can consider using a cluster. The file system used to manage cross-network machine storage is called Distributed FileSystem ). With the introduction of

1. Download mahout: http://archive.cloudera.com/cdh4/cdh/4/mahout-0.7-cdh4.6.0.tar.gz2, extract: mahout-0.7-cdh4.5.0.tar.gz3, renamed: Music mahout-0.7-cdh4.5.0 mahout4. Add the environment variable/tec/profile:Export MAHOUT_HOME

Today, let's talk about how to build a PPTP-VPN in linux, PPTP (Point to Point Tunneling Protocol), that is, Point to Point Tunneling Protocol. This protocol is a new enhanced security protocol developed on the basis of the PPP protocol. It supports

This article describes how to install apache, php, and mysql. It also accelerates php with xcache and uses the AB command to test the pressure performance of php. Install the LAMP \ Vsftpd \ Webmin \ phpMyAdmin service and settings in Ubuntu

Detailed explanation of Hadoop2.0 cluster Construction PS: The hadoop-2.2.0 installation package provided by apache is compiled in a 32-bit operating system, because hadoop depends on some local libraries of C ++, so if you install the hadoop-2.2.0

We use MapReduce for data analysis. When the business is complicated, using MapReduce will be a very complicated task. For example, you need to perform a lot of preprocessing or conversion on the data to adapt to the MapReduce processing mode. On

If the machine has data, you must be very careful when operating. The internal samba server cannot be accessed, and there is nothing in/share. No data is found. Later, I checked it carefully and found that the machine had five hard disks, which

Linux: CentOS 6.4 Required tools: server-jre-7u51-linux-x64.tar.gz 1. First download server-jre-7u51-linux-x64.tar.gz, which is available on the official Oracle website. Input: wget 2, install, enter the tar zxvf server-jre-7u51-linux-x64.tar.gz To

Network FileSystem (NFS): a Network file system, mainly used to access the file system on a remote host. 1. Install the nfs server #1. Check Software Installation [Root @ jiang ~] # Rpm-qa | grep rpcbind [Root @ jiang ~] # Rpm-qa | grep nfs #2.