Pengertian VPS atau Virtual Private Server

VPS atau Virtual Private Server adalah sebuah metode membagi sumber daya (resource) pada sebuah physical server menjadi beberapa Virtual Server / Virtual Machines, VPS juga disebut dengan VDS atau Virtual Dedicated Sever( Biasanya yang bervirtualisasi KVM).

Dari sisi kinerja, pengertian vps dapat bekerja layaknya bekerja pada physical server. Setiap VPS terlihat dan bekerja seperti sebuah jaringan server sistem yang sebenarnya, Anda dapat melakukan pengaturan sendiri untuk init script, users, proccess, filesystem, bin, users, services, dan sebagainya. Semuanya dapat dilakukan tanpa menganggu server utama.

Dilihat dari kinerjanya, pengertian VPS bekerja selayaknya Server biasa. Tetapi dijual dengan harga yang terjangkau.Anda dapat melakukan pengaturan sendiri untuk init script, users, proccess, filesystem, bin, users, services, dan sebagainya. Semuanya dapat dilakukan tanpa menganggu server utama.

Perbandingan KVM VPS vs OpenVZ/Virtuozzo vs Xen

	KVM VPS	OpenVZ	Xen
Dedicated filesystem of your choice (with direct block level access)	Ya	-	Ya
Dedicated RAM with full access and debugging capabilities	Ya	-	Ya
Dedicated server like isolation	Ya	-	Ya
VNC connection from the very early boot stage	Ya	-	Limited Support
PPTP VPN	Ya	Limited Support	Ya
Open VPN	Ya	Limited Support	Ya
IPSec VPN	Ya	-	Limited Support
Firewall Configuration	Ya	Limited Support	Ya
Kernel mode NFS Server	Ya	-	-
Independent kernel	Ya	-	Limited Support
Independent kernel modules	Ya	-	Limited Support
Full control on sockets and processes	Ya	-	-
Full guest OS support (Windows, Linux, BSD, OpenSolaris, etc.)	Ya	-	Limited Support
Direct dedicated access to PCI / PCIe cards	Ya	-	Limited Support
Fine grained swap configuration per VPS	Ya	-	Limited Support
Official integration with the Linux kernel	Ya	-	Ya

Main features of KVM VPS are:

KVM virtualization technology offers VNC support that gives you full, physical-like access to the console of your VPS.
RAM and disk are not shared with other virtual machines on the main server. This makes your KVM VPS even more stable and excludes a possibility of overselling.
KVM VPS allows you to choose custom kernels as well as custom kernel modules for your KVM VPS guest OS.
You may set up a VPN server in KVM VPS (PPTP, OpenVPN, IPSec).
Full guest OS support. Allows you to install Windows, Linux, BSD, OpenSolaris, etc.
With KVM VPS you may run a Window manger such as Gnome or KDE and and interact with it using VNC.

Demikian Pengertian VPS dan Perbandingan Virtualisasi yang telah kami rangkum. Semoga berguna dan dapat menambah ilmu para pembaca.

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