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In this chapter we will introduce the CentOS http://www.aliyun.com/zixun/aggregation/17117.html ">web server security settings, which is also a number of the most important security settings for Web services, As the administrator of the server we should develop a good system maintenance habits, regular patching, for the directory permission settings should have a very clear understanding of the user and user group management should also develop good habits, if you are just see this article ...

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First, the preamble: When the database server is established, we must first do is not to consider in this support for the database server running which are carried by the MySQL program, but when the database is destroyed, how to safely restore to the last normal State, making the loss of data to a minimum. Or just the establishment of the database server, only to show what it can do, does not mean that it can be stable to do something. The efficiency and comprehensiveness of disaster recovery is also a quasi-factor of system stability, especially for a server system. This section introduces the automatic database backup to ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall WDCP is the Wdlinux Control panel abbreviation, is a set of PHP development Linux Server Management system as well as the virtual host management system,, aims at easy to use the Linux system as our website server, as well as usually to 　　Linux Server Common management operations, can be done in the background of WDCP. 　With WDCP, you can easily create Web sites, create FTP, create MySQL databases, and so on. ...

Occurs when Apache is started [Root@centos apache2]#/usr/local/apache2/bin/apachectl starthttpd:could not reliably determine the Server ' s fully qualified domain HTTP://WWW.ALIYUN.COM/ZIXUN/AGGREGATION/11696.HTML&Q ...

Earlier, we were already running Hadoop on a single machine, but we know that Hadoop supports distributed, and its advantage is that it is distributed, so let's take a look at the environment. Here we use a strategy to simulate the environment. We use three Ubuntu machines, one for the master and the other two for the slaver. At the same time, this host, we use the first chapter to build a good environment. We use the steps similar to the first chapter to operate: 1, the operating environment to take ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology lobby site The most important is the data, but tomorrow manual backup is too cumbersome, and 8630.html" & gt; sometimes afraid to forget, especially the use of the VPs friend, perhaps the day IDC ran out of the finished, so today to prepare a copy of the MySQL database automatically script ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall when optimizes the website, 301 redirects is the stationmaster must an essential optimization, and 301 redirects mainly uses for moves the content from one position to another position. In fact, in understanding is also very simple, such as I have some content on the http://www.abc.com/a.html, and then I want to refactor the site, so I want to move the content on this page to http://www.abc.com/b.html. So, I can actually ...

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Cluster installation configuration Hadoop cluster nodes: Node4, Node5, Node6, Node7, Node8. 　　Specific schema: The operating system is: CentOS release 5.5 (Final) installation Step one, create the Hadoop user group. Second, the installation of JDK. Download the installation JDK. The installation directory is as follows: Third, modify the machine name, modify the file hosts. As follows: Four, installs the SSH service. ...