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Search results for Using a jail as a virtual machine

Gentoo HOWTO Linux Virtual Hosting Server
Post date: April 9, 2006, 10:04 Category: Software Views: 55
Tutorial quote: This document will explain how to install and configure a mail server capable of handling hundreds of domains and users. This how-to uses Postfix, Courier-imap, Mysql, and Apache as the core of this virtual system. If these packages don't appeal to you, Gentoo has a number of how-to's built around other MTA's or databases.
Linux Building a Linux virtual server
Post date: June 9, 2005, 10:06 Category: Software Views: 118
Tutorial quote: With the explosive growth of the Internet, the workload on servers providing Web, email, and media services has increased greatly. More and more sites are being challenged to keep up with the growing demands and are employing several techniques to avoid overloading their servers. Building a scalable server on a cluster of computers is one of the solutions that is being effectively put to use. With such a cluster, the increasing requests can be easily managed by simply adding one or more new servers to the existing cluster as required. In this article we will look at setting up one such scalable, network load-balancing server cluster using a virtual server via the Linux Virtual Server Project.
Unix+clones Emulating an OS with qemu
Post date: May 22, 2005, 04:05 Category: Emulation Views: 86
Tutorial quote: When you want to emulate a PC with a complete operating system on your computer, the most heard answer would be VMWare. Sure, for Linux, there is wine, but that package is targeted to handle only window$ and not all programs are supported. No, I'm talking about simulating a complete OS on a virtual PC with virtual hardware.

Although VMware does an almost perfect job at it, it isn't free software. Time to see what the Open Source community has to offer. That's when I stumbled upon qemu. Let's have a look at the possibilities.
Unix+clones Xen Disk I/O benchmarking: NetBSD dom0 vs Linux dom0
Post date: April 21, 2005, 06:04 Category: Benchmarks Views: 107
Tutorial quote: Xen is a relatively new technology to enable several virtual machines (domU) to run on one computer. The purpose of this article is to determine what operating system (NetBSD or Linux) should be selected as domain 0 (dom0) operating system to get the best performance when running several CPU and disk intensive virtual machines at the same time.
Gentoo Build your own Gentoo rescue LiveCD and USBStick
Post date: June 20, 2005, 00:06 Category: Miscellaneous Views: 153
Tutorial quote: I've written this how-to after trying to find a boot medium for my home gateway machine which could be used for system rescues and even installing Gentoo. Why not use the standard Gentoo Live CD you ask? Well my gateway machine is one of those small, silent and cool running mini-itx machines (http://www.mini-itx.com) and has no CDROM or floppy drive. I needed some way of getting Gentoo on there and some way of easily rescuing it when the need arises. The good news is that these VIA mini-tix machines are USB bootable and I much preferred the idea of having a little USB drive/stick that I could push into any USB bootable machine and boot into Linux rather than having to set up a PXE networked boot environment (which is also supported).
Unix+clones Remote backup using ssh, tar and cron
Post date: April 12, 2005, 21:04 Category: Miscellaneous Views: 51
Tutorial quote: Are you looking for a solution to backup your data to a remote location? While a solid backup solution such as Arkeia or TSM from IBM are nice from an enterprise point of view, simpler solutions are available from a home user's perspective. I will walk you through on you how you can backup your data to a remote server, using the default tools available on all linux systems. In a nutshell, we will use ssh capabilities to allow a cron job to transfer a tarball from you local machine to a remote machine.

For the purpose of this tutorial, the local machine will be called “localmachine” (running slackware) and the remote server will be called “remoteserver” (slackware as well). The user will be joe (me). You will have to substitute those 3 with your own machines names and user.
Debian Mini-Howto for User Mode Linux
Post date: April 12, 2005, 13:04 Category: System Views: 73
Tutorial quote: UML ("User Mode Linux") allows you to run multiple Linux servers on one physical machine. This can be handy for many different purposes. For example, you might want to give different people root rights, but prevent them from interfering with one another. Or, you might want to have several identically configured servers, one for production, one for development, and one for testing, but without investing in multiple physical machines.

Once you have prepared your machine for running UML instances as described in the following section, adding new instances will take less than five minutes. The preparation, however, might take a bit longer.
Debian Simple Apache 2 Tomcat 5 mod_jk Integration
Post date: April 13, 2006, 03:04 Category: Network Views: 12
Tutorial quote: The whole tutorial is based on many tutorials, but I made a very simple one, with no virtual hosts.
Debian Virtual Users And Domains With Postfix, Courier And MySQL (+ SMTP-AUTH, Quota, SpamAssassin, ClamAV)
Post date: October 9, 2005, 14:10 Category: Network Views: 213
Tutorial quote: This document describes how to install a mail server based on Postfix that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database Postfix uses.

The resulting Postfix server is capable of SMTP-AUTH and TLS and quota (quota is not built into Postfix by default, I'll show how to patch your Postfix appropriately). Passwords are stored in encrypted form in the database (most documents I found were dealing with plain text passwords which is a security risk). In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV so that emails will be scanned for spam and viruses.
Ubuntu Essential house keeping in Ubuntu
Post date: December 8, 2005, 06:12 Category: System Views: 184
Tutorial quote: I started using Ubuntu Breezy ver 5.10 a month back on my machine. Prior to that I was exclusively into Fedora. What drew me to Ubuntu was the huge number of packages in its repositories including softwares which I find useful on a day-to-day basis like Tomboy which I had to compile from source in Fedora. But the Ubuntu CD comes with the base packages which support only open file formats. So if you want support for proprietary file formats like mp3 and quicktime support as well as install softwares not included on the CD, then you have to do some work.

I call it essential housekeeping because it is not exactly a problem, but only a matter of finding out how to get the necessary support. Here I share my experiences in putting the Ubuntu house in order on my machine.