Linux, Hosting tips

Backup VPS using vzdump

Vzdump is a utility to make consistent snapshots of running OpenVZ containers. It basically creates a tar archive of the container’s private area, which also includes the container configuration files. It stores the backup on the disk in a single tar file. Download vzdump rpm packages from http://download.openvz.org/contrib/utils/vzdump and install the rpm package on the [...]

Running VmWare vSphere client on Windows

When attempting to run the vmware vsphere client the following errors are received and is unable to login or proceed any further: “Error parsing the server “<server name” “clients.xml” file.” “The type initializer for ‘VirtualInfrastructure.Utils.HttpWebRequestProxy’ threw an exception.” Follow the following easy steps and you will be ready to go. Download this DLL called system.dll [...]

ClamAV ERROR: getfile: Can’t create new file

While running freshclam in servers, you may encounter this problem. root@linux [~]# freshclam ClamAV update process started at Fri Jun 11 19:23:37 2010 WARNING: Your ClamAV installation is OUTDATED! WARNING: Local version: 0.95.2 Recommended version: 0.96.1 DON’T PANIC! Read http://www.clamav.net/support/faq ERROR: chdir_tmp: Can’t create directory ./clamav-c1140c4846ffa40c2678e2fdcd1221ee WARNING: Incremental update failed, trying to download main.cvd ERROR: [...]

Postfix flush mail queue

We all know that the command `sendmail -q` will flush the mails in queue. In Postfix, enter the following to flush the mail queue: # postfix flush Or you can use: # postfix -f To see mail queue, enter: # mailq To remove all mail from the queue: # postsuper -d ALL To remove all [...]

Install Memcached in Linux

Installing PHP5 Memcache Extension Module in Linux. Prerequisite Install * Download & install libevent (memcached dependency) wget http://www.monkey.org/~provos/libevent-1.4.8-stable.tar.gz tar xfz libevent-1.4.8-stable.tar.gz cd libevent-1.4.8-stable ./configure && make && sudo make install * Create a symlink to libevent ln -s /usr/local/lib/libevent-1.4.so.2 /usr/lib * Download & install memcached wget http://danga.com/memcached/dist/memcached-1.2.6.tar.gz tar xfz memcached-1.2.6.tar.gz cd memcached-1.2.6 ./configure && make [...]

Installing Memcache Extension for PHP

Let’s determine the PHP version installed and also make sure it is in system path. 1. type php -v on you shell, it should show something like PHP 5.2.6 (cli) (built: some date) 2. type whereis php to get the path where PHP is installed in your system. 3. In your accounts home directory create/edit [...]

Install /dev/net/tun in a VPS

VPN support for a VPS Hosting via the TUN/TAP device is available. To allow VE #700 to use the TUN/TAP device, the following steps are required: * Make sure the tun module has been already loaded on the hardware node: lsmod | grep tun If it is not there, then issue the command ‘modprobe tun’ [...]

Create a disk partition on a disk greater than 2TB in size

Fdisk command does not supports partitioning of disk that has greater than 2 TB size. The parted tool supports GPT disk labels which can be used on disks larger than 2TB. The example below demonstrates how to create a 6TB partition: 1. Use the parted tool to access the partition table of the device: # [...]

OSCommerce, images not displaying

If images do not display in IE, but they do in firefox, and if the includes/configure.php files are correct, the images are in the /images directory, and the permissions on the /images directory and the images are correct, then, you should go to includes/application_top.php and where it says $request_type = (getenv(‘HTTPS’) == ‘on’) try changing [...]

To Install VMware Tools in a Linux Guest

To Install VMware Tools in a Linux Guest, do the following steps, Goto, Settings > VMware Tools Install and click Install. This step connects the virtual machine’s CD-ROM drive to an ISO image file on the ESX Server machine. In your Linux guest, become root, mount the VMware Tools virtual CD-ROM, copy the installer file [...]