Category: Virtualizacija

Let’s Encrypt – open source SSL – enkripcija za DŽ

Internet prezentacije postaju sve više interaktivnije. Nekada su to bile fiksne strane, informativnog karaktera, sada sajtovi traže više akcija od strane korisnika. Neminovnost je da korisničke podatke treba zaštitii, a jedan od načina je upotreba SSL sertifikata. Continue reading “Let’s Encrypt – open source SSL – enkripcija za DŽ”

Linux Kernel 3.0 is out (with KVM and Xen included)

Last week, Linux kernel father Linus Torvalds announced the release of version 3.0 of the Linux Kernel. This release does not introduce any binary incompatibility neither major changes.

Virtualization.info already covered the 3.0 release with regards to the integration of both KVM and Xen in the mainline tree of the kernel sources.

 

For Xen, this release means no more patches to the Linux kernel in order to make Linux virtual machines run as guests. In fact, Xen is a Type-1 hypervisor, so hosted operating systems need to have proper support built-in to run smoothly on virtualized hardware. Until now, a substantial Linux kernel patch had to be applied in order to add this support in the linux guest.

KVM, instead, is a Type-2 hypervisor, which runs itself on top of and operating system.

A full list of Xen related changes in the Linux kernel can be found here on the Xen wiki.

http://virtualization.info

XenServer – Adding a local Iso Storage

Login to your Xenserver with ssh and create a iso folder

mkdir -p /var/opt/xen/iso_import

Then, create the ISO store like this

xe sr-create name-label=”Local ISO” type=iso device-config:location=/var/opt/xen/iso_import/ device-config:legacy_mode=true content-type=iso

—

If You want to install Debian Lenny, as defined VM, maybe is better to use Remote URL:

http://ftp.de.debian.org/debian/

Installing XenServer Tools on Ubuntu 10.04

Ukoliko želite da iskoristite sve mogućnosti ubuntu servera na xen virtualizaciji potrebno je da se instalira xenserver-tools alatka. Međutim, montiranje slike diska i pokretanje instalacije ne pomaže.

Uradite po ovom uputstvu:

http://www.jansipke.nl/installing-xenserver-tools-on-ubuntu-10-04

Jedna napomena je da će trebati mnogo više pažnje ukoliko imate više diskova. Tada treba voditi računa o njihovim identifikacijama.

Naravno, podrazumeva se da ste kreirali snepšut (snapshoot – slika trenutnog stanja).

Ukoliko imate problema možete iskoristiti i sledeće uputstvo za instalaciju ubunta na xen server:

http://www.isaaczarb.com/installing-ubuntu-9-04-pv-on-citrix-xenserver/

Eunet – Think smart, start grid – Nova generacija virtuelizacije

Prezentacija „Think Smart – Start Grid” kojom je kompanija EUnet predstavila svoj Grid Hosting Servis zasnovan na AppLogic softverskim rešenjima, odžana je u sredu 23. septembra u prostorijama EUnet College-a, u Zmaj Jovinoj ulici.

Ovaj jedinstvenim servis na evropskom tržištu imali su prilike da upoznaju brojni prisutni Web Developer-i i Project Manager-i, koji se bave izradom i razvojem web aplikacija, u medijskim kućama. Okupljenim inženjerima je na praktičnom primeru prikazano rešenje implementirano za Radio Televiziju Srbije, zasnovano na Grid platformi. Continue reading “Eunet – Think smart, start grid – Nova generacija virtuelizacije”