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Virtualization - The new technology evelution
Virtualization, in computing, is the creation of a virtual (rather than actual) version of something, such as a hardware platform, operating system, a storage device or network resources.....
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Security Vulnerabilities in E-Commerce Systemin
Most of these attacks have utilized vulnerabilities that have been published in reusable third-party components utilized by websites, such as shopping cart software and poor design of such websites. Other factor is user awareness of security vulnerabilities.
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VPN - Virtual Private Network
VPN is a technology which is making secure private network through the public accessible network infrastructure. Virtual Private Network represent by the short name VPN. ...
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Saas - Cloud Computing
The cloud computing : is based on this three concepts. IaaS (Infrastructure as a service), PaaS (Platform as a Service) and SaaS (Software as a Service).
Showing posts with label Linux. Show all posts
Showing posts with label Linux. Show all posts
Install VNC Server to operate SUSE with GUI remotely from Windows client
mail:~ # vi .vnc/xstartup
#!/bin/sh
xrdb $HOME/.Xresources
xsetroot -solid grey
xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
gnome-session &
#xrdb $HOME/.Xresources
#xsetroot -solid grey
#xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
#twm &
Then Run
mail:~ # vncserver -kill :3
Killing Xvnc process ID 4229
mail:~ # vncserver :3
Install VNC viewer on client computer next. Download from the site below to install.
http://www.realvnc.com/products/free/4.1/download.html
Start VNC viewer after installing. Then following scrren is shown. Input [(Server's hostname or IP address):(display number)] like following example.
Go to VNC Client on your PC
go to session 3
Good Luck
Virtualization has really come up as a solution for saving precious money and IT consolidation for all of us related to IT. Here I will tell you about top 4 Virtualization platforms on which I have worked, and found them very useful and robust virtualization solution.
Virtual Box:
is a powerful platform for virtualization for both 32-bit and 64-bit hardwares. VirtualBox is available for variety of operating systems like Windows, Linux, Solaris, OpenSolaris and OpenBSD.
VirtualBox has now become a very mature product offering many features for hosting your virtual machines. VirtualBox GUI is very easy to use and you can easily configure different options with it, performance of virtual machines hosted on it is what really impresses me.
VirtualBox is most probably one of the best open source platforms available for virtualization. Currently, VirtualBox 3.0 is available for download, for more information, you can visit VirtualBox site: http://www.virtualbox.org.
XenServer
is a robust virtualization platform by Citrix Systems, and is claimed to be an ‘Enterprise-Class’ virtualization platform.
XenServer is based on Xen 3.2 hypervisor platform that is native to the 64-bit architecture, it has exclusive support for Intel and AMD based hardware, and it also has many other features that enable this platform to perform better with Microsoft based operating systems. XenServer has a management featurethat makes it easier for administrators to manage the entire organization’s virtual servers through one management console, it also provides better support for cloud-based virtualization. For more details visit: http://www.citrix.com
VMware:
is also another top of the line virtualization platform, it can offer you lot of customized solutions for your virtualization needs, especially VMware ESXi is a wonderful virtualization platform that provides a stable and Enterprise-level virtualization support.
VMware also uses same hypervisor technology, which is being used by XenServer. Its virtualization platforms can be managed through its products VMware vSphere or through VMware Infrastructure, enabling its administrators to consolidate their whole VMware based virtualization environment with ease. Visit VMware official website: http://www.vmware.com
Virtual Server 2005:
is a virtualization product from Microsoft; it’s a hosted virtualization platform that requires a host operating system to run. It’s a good and reliable virtualization platform, especially for the virtualization of Microsoft based operating systems like its Server OS, Windows XP, Vista and Windows 7.
Microsoft Virtual Server 2005 R2 can run on both 32-bit and 64-bit versions of Windows Server 2003. It has a portable virtual hard disk format named ‘VHD’, which offers flexible usage of virtual hard disks; VHD is also compatible with Hyper-V, which is being shipped with Microsoft Server 2008.
Microsoft Virtual PC is also a small utility from Microsoft to host virtual machines on Microsoft Windows XP platform.
For more details visit Microsoft Virtual Server homepage:http://www.microsoft.com/windowsserversystem/virtualserver