Adding Disk Space To A Linux Xen Virtual Machine

Add A New Virtual Disk Using Xen Center First you need to add a virtual disk using Xen Center.  Click on the virtual machine, then the Storage tab, then click the Add button at the bottom. Next, enter the size of the virtual disk & choose the storage repository where it will...
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Flushing Your DNS Cache

Many applications cache DNS entries to speed up DNS lookups in the event you request resources from the same server. Sometimes you need to flush this DNS cache if you know for a fact that a DNS entry has changed. How do you do that? Flushing DNS On Windows H:\>ipconfig /flushdns Windows IP...
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Mounting A Windows File Share On Linux

To mount a Windows file share on Linux, first create the file share on Windows and give the appropriate permissions to the user. Then, on Linux you want to do the following: Create a directory for the mount point mkdir -p /mnt/windows/backups Use the mount command to mount the Windows share: mount -t cifs //yourwindowsserver/backups...
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SSH Login No Password Prompt

Sometimes on Linux, you want to automatically login to a machine using ssh without being prompted for a password. How do you set this up? First you need to generate a public/private key pair on the server you will be connecting from, lets call it SERVERFROM ssh-keygen -t rsa You could also use -t...
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Vinteros Blog Now Using WPTouch Theme For The iPhone

If you access http://blog.vinteros.com from an iPhone or iPod Touch, you will see a nice new mobile them courtesy of http://www.bravenewcode.com/wptouch/ Here's a screenshot: [caption id="attachment_82" align="aligncenter" width="320" caption="Vinteros Blog For iPhone Theme"][/caption]...
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Converting Enterprisedb Postgres Plus XML Array To Array

In Postgres Plus Advanced Server 8.3R2, there are times when you want to query a table using values passed in as XML.  Here's an example. First we'll create a table and insert a few values: CREATE TABLE NAMES (FNAME VARCHAR2(50)); Table created. INSERT INTO NAMES VALUES ('MIKE'); 1 row INSERTED. INSERT INTO NAMES VALUES...
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Vinteros Is Now A Centos Mirror Site

Vinteros, Inc. is now a Centos mirror site. You can download Centos Linux from our mirror server http://centos.vinteros.com...
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Configure The Network Card In Redhat 5.3 Advanced Server

Somtimes you need to configure or reconfigure your network settings. What options are available for doing that? In Redhat (applies to Fedora & Centos too), there are 3 different methods for configuring the network settings: [1] Command line text based GUI tool (No X Windows required) - system-config-network [2] Edit configuration files...
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Disable The Firewall In Redhat Enterprise Linux From Command Line

Sometimes you need to disable the firewall in Linux from the command line. A good example is when you create a Xen virtual machine & configure VNC access. By default, the VM will boot up in init level 3 which is text mode and doesn't have a graphical desktop. After...
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Creating An HTTP Xen Redhat Installation Repository

If you create a lot of virtual machines using the Citrix XenCenter, you'll want to create an installation repository somewhere containing the installation software.  You need an http server & the installation .iso file for your particular version of Linux. Here's how to create an http repository for Redhat 5.3...
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