php virtual box web interface - localhost

phpVirtualBox installation on Debian Linux and Apache2 web server

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phpVirtualBox allows you to manage locally or remotely your virtual machines running under VirtualBox via web-based interface. This config will describe an installation and basic configuration of phpVirtualBox on Debian Linux.

First, we need to install apache2 and php support:

# apt-get install libapache2-mod-php5 apache2 unzip wget

Next, we need to download phpVirtualBox. Please update your download link if necessary:

$ wget http://downloads.sourceforge.net/project/phpvirtualbox/phpvirtualbox-4.3-2.zip

Next, we will unzip and move the phpVirtualBoxcode into root directory of our apache2 webserver directory. 

# unzip phpvirtualbox-4.3-2.zip
# mv phpvirtualbox-4.3-2/ /var/www/html/vbox

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How to change a static hostname on RHEL7 linux with hostnamectl

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Instead of changing a hostname on your Redhat 7 server manually by editing /etc/hostname you may preferably use a dedicated command hostnamectl to do this job. By default when no other options are supplied the hostnamectl command will display basic information including static hostname:

[root@rhel7 ~]# hostnamectl 
   Static hostname: rhel7
         Icon name: computer
           Chassis: n/a
        Machine ID: 75387b56d72b44b380810499805ec28a
           Boot ID: 6ad251d0e12a10e3af1894eae5fe5cb6
    Virtualization: oracle
  Operating System: Red Hat Enterprise Linux Server 7.0 (Maipo)
       CPE OS Name: cpe:/o:redhat:enterprise_linux:7.0:GA:server
            Kernel: Linux 3.10.0-123.el7.x86_64
      Architecture: x86_64

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How to list all available locales on RHEL7 Linux

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The following linux command will list all available locales currently available on the Redhat 7 system:

[root@rhel7 ~]# localectl list-locales

The list of all available locales on your system my be quite long so use grep command to narrow down your search. Bellow command will display for example all German available locales:

[root@rhel7 ~]# localectl list-locales | grep ^de
de_AT
de_AT.iso88591
de_AT.iso885915@euro
de_AT.utf8
de_AT@euro
de_BE
de_BE.iso88591
de_BE.iso885915@euro
de_BE.utf8
de_BE@euro
de_CH
de_CH.iso88591
de_CH.utf8
de_DE
de_DE.iso88591
de_DE.iso885915@euro
de_DE.utf8
de_DE@euro
de_LU
de_LU.iso88591
de_LU.iso885915@euro
de_LU.utf8
de_LU@euro
deutsch

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Using timedatectl command to change time and date on RHEL7 Linux system

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When not using NTP you may need to set your system time manually. You have two options to set time and date on your RHEL7 linux. First option is to use date command to do this job or engage dedicated systemd timedatectl command. By default and without any arguments timedatectl will display a current time, local, universal and RTC times:

[root@rhel7 ~]# localectl
   System Locale: LANG=en_AU.iso88591
       VC Keymap: us
      X11 Layout: us
[root@rhel7 ~]# timedatectl
      Local time: Thu 2014-09-04 18:30:11 WST
  Universal time: Thu 2014-09-04 10:30:11 UTC
        RTC time: Thu 2014-09-04 10:30:10
        Timezone: Australia/Perth (WST, +0800)
     NTP enabled: n/a
NTP synchronized: no
 RTC in local TZ: no
      DST active: n/a

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Configure anonymous Internet browsing on Fedora Linux with tor and privoxy

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The intention of this config is to provide simple to follow steps on how to configure anonymous Internet browsing on Fedora Linux using privoxy and tor. Both services tor and privoxy are standalone services where tor provides anonymity using onion routing techniques and privoxy is a proxy server with content filtering and advertisement blocking.

Let’s start by installation of both services:

# yum install privoxy tor

After the install start tor:

# service tor start
Redirecting to /bin/systemctl start  tor.service

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How to re-compile nginx webserver on Debian Linux

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Let’s say you wish to do some changes to nginx source code in
order to add or remove some features before the actual nginx
package installation. In this config we will show how to recompile
nginx package on Debian linux.

First install package building tools:

# apt-get install dpkg-dev

Next, we need to install all nginx build dependencies:

# apt-get build-dep nginx

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