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[Translated] tech/30 Things to Do After Minimal RHEL/CentOS 7 Installation--5
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30 Things to Do After Minimal RHEL/CentOS 7 Installation--5
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================================================================================
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### 25. Install Linux Malware Detect (LMD) ###
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Linux Malware Detect (LMD) is a open source Linux malware scanner released under the GNU GPLv2 license, that is
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specially designed for threats faced in hosting environments. For complete installation, configuration and usage of LMD can be found at:
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- [Install and Use (LMD) with ClamAV as Antivirus Engine][1]
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### 26. Server Bandwidth Testing with Speedtest-cli ###
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speedtest-cli is a tool written in python to test internet bandwidth including download and upload speed. For complete installation and usage of speedtest-cli tool, read our article at [Check Linux Server Bandwidth Speed from Command Line][2]
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### 27. Configure Cron Jobs ###
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This is one of the most widely used software utility. It function as job scheduler i.e., schedule a job now that will execute in future itself. It is useful in logging and maintaining records unattained as well as several other routine work like regular backup. All the schedule is written in /etc/crontab file.
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The crontab file contains 6 fields as follows:
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Minutes Hour Day of Month Month of Year Week Day Command
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(0-59) (0-23) (1-31) (1/jan-12/dec) (0-6/sun-sat) Command/script
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Crontab Fields
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To run a cron job (say run /home/$USER/script.sh) everyday at 04:30 am.
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Minutes Hour Day of Month month of year Week Day command
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30 4 * * * speedtest-cli
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Add the following entry to the crontab file ‘/etc/crontab/‘.
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30 4 * * * /home/$user/script.sh
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After adding the above line to crontab, it will run automatically at 04:30 am everyday and the output depends upon what is there in script file. Moreover script can be replaced by commands. For more examples of cron jobs, read [11 Cron Jobs Examples in Linux][3]
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### 28. Install Owncloud ###
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Owncloud is a HTTP based data synchronization, file sharing and remote file storage application. For more detail on installing own cloud, you may like to see this article : [Create Personal/Private Cloud Storage in Linux][4]
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### 29. Enable Virtualization with Virtualbox ###
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Virtualization is a process of creating virtual OS, Hardware and Network, is one of the most sought technology of these days. We will be discussing on how to install and configure virtualization in detail.
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Our CentOS Minimal server is a headless server. Lets prepare it to host virtual machines that is accessible over HTTP by installing following packages.
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# yum groupinstall 'Development Tools' SDL kernel-devel kernel-headers dkms
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Install Development Tools
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Change working directory to ‘/etc/yum.repos.d/‘ and download Virtualbox repository.
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# wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc
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Install the key just downloaded.
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# rpm --import oracle_vbox.asc
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Update and Install Virtualbox.
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# yum update && yum install virtualbox-4.3
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Next, download and install Virtualbox extension pack.
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# wget http://download.virtualbox.org/virtualbox/4.3.12/Oracle_VM_VirtualBox_Extension_Pack-4.3.12-93733.vbox-extpack
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# VBoxManage extpack install Oracle_VM_VirtualBox_Extension_Pack-4.3.12-93733.vbox-extpack
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Install Virtualbox Extension Pack
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Installing Virtualbox Extension Pack
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Create a user ‘vbox‘ to manage virtualbox and add it to group vboxusers.
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# adduser vbox
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# passwd vobx
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# usermod -G vboxusers vbox
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Install HTTPD server.
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# yum install httpd
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Install PHP (with soap extension).
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# yum install php php-devel php-common php-soap php-gd
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Download PHP virtualBox.
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# wget http://sourceforge.net/projects/phpvirtualbox/files/phpvirtualbox-4.3-1.zip
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Extract the zip and copy the extracted folder to HTTP working directory.
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# unzip phpvirtualbox-4.*.zip
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# cp phpvirtualbox-4.3-1 -R /var/www/html
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Next, rename file /var/www/html/phpvirtualbox/config.php-example to var/www/html/phpvirtualbox/config.php.
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# mv config.php.example config.php
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Open the configuration file to edit and add ‘username‘ and ‘password‘ we just created in the above step.
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# vi config.php
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Finally, restart VirtualBox and HTTP server.
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# service vbox-service restart
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# service httpd restart
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Now forward the port and access it on a headed server.
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http://192.168.0.15/phpvirtualbox-4.3-1/
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PHP Virtualbox Login
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PHP Virtualbox Dashboard
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--------------------------------------------------------------------------------
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via: http://www.tecmint.com/things-to-do-after-minimal-rhel-centos-7-installation/5/
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作者：[Avishek Kumar][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出
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[a]:http://www.tecmint.com/author/avishek/
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[1]:http://www.tecmint.com/install-linux-malware-detect-lmd-in-rhel-centos-and-fedora/
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[2]:http://www.tecmint.com/check-internet-speed-from-command-line-in-linux/
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[3]:http://www.tecmint.com/11-cron-scheduling-task-examples-in-linux/
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[4]:http://www.tecmint.com/install-owncloud-to-create-personal-storage-in-linux/
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@ -0,0 +1,134 @@
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安装完最小化 RHEL/CentOS 7 后需要做的 30 件事情--5
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================================================================================
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### 25. 安装 Linux Malware Detect (LMD) ###
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Linux Malware Detect (LMD) 是 GNU GPLv2 协议下发布的开源 Linux 恶意程序扫描器，尤其是为面临威胁的主机环境。LMD 完整的安装、配置以及使用方法可以查看：
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- [安装 LMD 并和 ClamAV 一起使用作为反病毒引擎][1]
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### 26. 用 Speedtest-cli 测试服务器带宽 ###
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speedtest-cli 是用 python 写的用于测试网络下载和上传带宽的工具。关于 speedtest-cli 工具的完整安装和使用请阅读我们的文章[用命令行查看 Linux 服务器带宽][2]
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### 27. 配置 Cron 作业 ###
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这是最广泛使用的软件工具之一。它是一个作业调度器，比如，现在安排一个以后可以自动运行的作业。它对于日志、保存没有实现的记录以及其它日常工作，比如常规备份，非常有用。所有的调度都写在文件 /etc/crontab 中。
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crontab 文件包含下面的 6 个域：
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分 时 日期 月份 星期 命令
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(0-59) (0-23) (1-31) (1/jan-12/dec) (0-6/sun-sat) Command/script
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Crontab 域
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在每天 04:30 运行一个 cron 作业(比如运行 /home/$USER/script.sh)。
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分 时 日期 月份 星期 命令
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30 4 * * * speedtest-cli
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把下面的条目增加到 crontab 文件 ‘/etc/crontab/’。
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30 4 * * * /home/$user/script.sh
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把上面一行增加到 crontab 之后，它会在每天的 04:30 am 自动运行，输出取决于脚本文件的内容。另外脚本也可以用命令代替。关于更多 cron 作业的例子，可以阅读[Linux 上的 11 个 Cron 作业例子][3]
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### 28. 安装 Owncloud ###
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Owncloud 是一个基于 HTTP 的数据同步、文件共享和远程文件存储应用。更多关于安装 owncloud 的内容，你可以阅读这篇文章：[在 Linux 上创建个人/私有云存储][4]
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### 29. 启用 Virtualbox 虚拟化 ###
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虚拟化是创建虚拟操作系统、硬件和网络的过程，是当今最热门的技术之一。我们会详细地讨论如何安装和配置虚拟化。
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我们的最小化 CentOS 服务器是一个无头服务器(译注：无头服务器是指没有专门用于向其它计算机和它们的用户提供服务的本地接口的计算设备)。我们通过安装下面的软件包为它承载可通过 HTTP 访问的虚拟机器做准备。
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# yum groupinstall 'Development Tools' SDL kernel-devel kernel-headers dkms
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安装开发工具
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更改工作目录到 ‘/etc/yum.repos.d/’ 并下载 VirtualBox 库。
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# wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc
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安装刚下载的密钥。
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# rpm --import oracle_vbox.asc
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升级并安装 VirtualBox。
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# yum update && yum install virtualbox-4.3
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下一步，下载和安装 VirtualBox 扩展包。
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# wget http://download.virtualbox.org/virtualbox/4.3.12/Oracle_VM_VirtualBox_Extension_Pack-4.3.12-93733.vbox-extpack
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# VBoxManage extpack install Oracle_VM_VirtualBox_Extension_Pack-4.3.12-93733.vbox-extpack
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安装 VirtualBox 扩展包
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正在安装 VirtualBox 扩展包
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添加用户 ‘vbox’ 用于管理 VirtualBox 并把它添加到组 vboxusers 中。
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# adduser vbox
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# passwd vobx
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# usermod -G vboxusers vbox
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安装 HTTPD 服务器。
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# yum install httpd
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安装 PHP (有 soap 扩展)。
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# yum install php php-devel php-common php-soap php-gd
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下载 PHP virtualBox.
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# wget http://sourceforge.net/projects/phpvirtualbox/files/phpvirtualbox-4.3-1.zip
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解压 zip 文件并把解压后的文件夹复制到 HTTP 工作目录。
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# unzip phpvirtualbox-4.*.zip
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# cp phpvirtualbox-4.3-1 -R /var/www/html
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下一步，重命名文件 /var/www/html/phpvirtualbox/config.php-example 为 var/www/html/phpvirtualbox/config.php。
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# mv config.php.example config.php
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打开配置文件并添加我们上一步创建的 ‘username ’ 和 ‘password’。
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# vi config.php
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最后，重启 VirtualBox 和 HTTP 服务器。
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# service vbox-service restart
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# service httpd restart
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转发端口并从一个有头服务器上访问它。
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http://192.168.0.15/phpvirtualbox-4.3-1/
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登录 PHP Virtualbox
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PHP Virtualbox 面板
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--------------------------------------------------------------------------------
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via: http://www.tecmint.com/things-to-do-after-minimal-rhel-centos-7-installation/5/
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作者：[Avishek Kumar][a]
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译者：[ictlyh](https://github.com/ictlyh)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出
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[a]:http://www.tecmint.com/author/avishek/
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[1]:http://www.tecmint.com/install-linux-malware-detect-lmd-in-rhel-centos-and-fedora/
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[2]:http://www.tecmint.com/check-internet-speed-from-command-line-in-linux/
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[3]:http://www.tecmint.com/11-cron-scheduling-task-examples-in-linux/
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[4]:http://www.tecmint.com/install-owncloud-to-create-personal-storage-in-linux/
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