Category Archives: CentOS

Adding Additional Disk Drives to CentOS

Adding a new drive to CentOS or RedHat systems. Making use of a second drive for extra space? Here’s a quick run-down: 1) Make sure you know which disk is being formatted. First, second, and third drives will be /dev/sda, … Continue reading

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SolusVM Mass Starting/Stopping Virtual Servers

If you need to mass start your virtual servers, run the following code in SSH on the host: Xen PV/HVM START CFGS=/home/xen/vm*/;for cfg in $CFGS;do xm create $cfg*.cfg;done STOP xm shutdown -aw OpenVZ START CFGS=`vzlist -S -Ho ctid`;for cfg in $CFGS;do vzctl … Continue reading

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Using Screen

Screen is like a window manager for your console. It will allow you to keep multiple terminal sessions running and easily switch between them. It also protects you from disconnection, because the screen session doesn’t end when you get disconnected. … Continue reading

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Command Line Ping Sweep

Sometimes it can be handy to ‘see’ what is around you on a network, for instance when you’re using DHCP on a network and you want to find which addresses are already taken. Or you want to see whether specific … Continue reading

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Installing Maldet on CentOS

Maldet is an excellent way to help keep your server secure including if you have a control panel installed such as WHM, cPanel, or DirectAdmin. Maldet is designed to scan your files in the /home/ directory (or any directory of … Continue reading

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Network Unavailable with CentOS 7 or Fedora 20

There is a bug in SolusVM that the network settings for CentOS 7 and Fedora 20 do not get provisioned properly when you initially order your VPS. This is due to the change in the way these operating systems use … Continue reading

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CentOS 7 error: unpacking of archive failed on file /usr/lib/udev/rules.d/60-net.rules: cpio: rename

If you have ever done a yum update only to discover initscripts wouldn’t install or update, chances are you were scratching your head as to why. We have noticed this is a common problem on our CentOS 7 templates but … Continue reading

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Mount: special device /dev/xvdd does not exist When Installing XenServer Tools on Linux

According to the Citrix documentation, the command to mount the XenServer tools ISO image on a Linux OS is this: mount /dev/xvdd /mnt But this does not work on CentOS or Ubuntu virtual machines, because these use a different naming … Continue reading

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Installing Zend Optimizer with IonCube Loader

Zend Optimizer and Ioncube, can safely be installed on an InterWorx server. Ref: http://www.interworx.com/faq/general To install Zend Optimizer. cd /usr/src/ wget http://downloads.zend.com/optimizer/3.3.9/ZendOptimizer-3.3.9-linux-glibc23-i386.tar.gz tar xzf ZendOptimizer-3.3.9-linux-glibc23-i386.tar.gz Now locate php.ini and extension directory. To locate php.ini, run following command: php -i |grep … Continue reading

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How to install Varnish with CPanel and CentOS to cache static content on serve

There are few things you need to do to install Varnish with Cpanel (WHM): Let Apache listen on port 8080 – you can do it by editing httpd.conf or directly in WHM: Tweak Settings menu -> set value of field Apache … Continue reading

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