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CentOS 5.3 Samba Standalone Server With tdbsam Backend

Fri, 03 Jul 2009 17:52:39 +0200

CentOS 5.3 Samba Standalone Server With tdbsam Backend

This tutorial explains the installation of a Samba fileserver on CentOS 5.3 and how to configure it to share files over the SMB protocol as well as how to add users. Samba is configured as a standalone server, not as a domain controller. In the resulting setup, every user has his own home directory accessible via the SMB protocol and all users have a shared directory with read-/write access.

Installing Adobe AIR 1.5.1 For Linux On Ubuntu 9.04 (x86_64)

Thu, 02 Jul 2009 20:12:51 +0200

Installing Adobe AIR 1.5.1 For Linux On Ubuntu 9.04 (x86_64)

Adobe AIR is a technology that lets you run Internet applications on the desktop. With AIR you do not need a browser to run such desktop applications. This tutorial explains how you can install Adobe AIR 1.5.1 for Linux on an Ubuntu 9.04 desktop (x86_64) and how you can install AIR applications.

How To Remotely Shut Down Windows XP Computers From A Linux Server

Thu, 02 Jul 2009 14:00:06 +0200

How To Remotely Shut Down Windows XP Computers From A Linux Server

As a budget cutback, our school administrators asked us to shutdown all non-essential classroom computers at night to save electricity. I teach Linux in a classroom that has a Dell Poweredge 2850 Red Hat Enterprise Linux (RHEL5) server and 29 Dell Optiplex 745 student lab computers running Microsoft Windows XP SP3 as the host operating system and VMWare Server to provide virtual Linux machines for our classes. I researched on the Internet for the best solution to remotely shutdown the student lab computers at night. I was not able to find one post or how-to that completely answered my questions, but I was able to piece together a solution. In an effort to document this project and help others with similar needs, here are my notes on the project.

Squid Proxy Server On Ubuntu 9.04 Server With DansGuardian, ClamAV, And WPAD (Proxy Auto-Detection)

Wed, 01 Jul 2009 19:25:57 +0200

Squid Proxy Server On Ubuntu 9.04 Server With DansGuardian, ClamAV, And WPAD (Proxy Auto-Detection)

This tutorial will demonstrate how to set up a Squid Proxy server on Ubuntu 9.04 Server with DansGuardian (for content filtering) and ClamAV (for Virus scanning); in addition, we will set up Web Proxy AutoDetection (WPAD) through DHCP (in this case, the Windows Server 2003 DHCP server) or DNS so that the only configuration necessary on the client side is to check "Auto-detect proxy settings for this network" in Firefox or Internet Explorer. At the end of the tutorial, users will have a fully functional and secure proxy for HTTP access.

Installing Adobe AIR 1.5.1 For Linux On Ubuntu 9.04 (i386)

Tue, 30 Jun 2009 18:46:13 +0200

Installing Adobe AIR 1.5.1 For Linux On Ubuntu 9.04 (i386)

OpenERP Server Installation On Fedora 11

Tue, 30 Jun 2009 13:33:42 +0200

OpenERP Server Installation On Fedora 11

This article will show you how to set up OpenERP on Fedora 11. Open ERP (formerly named Tiny ERP) is the leader open-source ERP/CRM system written mostly in Python and initiated in Belgium. It offers a three-tier web architecture, ease of use and flexibility.

Using IP Service Object In Firewall Builder

Mon, 29 Jun 2009 17:38:35 +0200

Using IP Service Object In Firewall Builder

This article continues the series of articles on Fireall Builder, a graphical firewall configuration and management tool that supports many Open Source firewall platforms as well as Cisco IOS access lists and Cisco ASA (PIX). This article demonstrates how you can work with IP Service object in Firewall Builder.

Distributed Replicated Storage Across Four Storage Nodes With GlusterFS On Debian Lenny

Sun, 28 Jun 2009 18:17:58 +0200

Distributed Replicated Storage Across Four Storage Nodes With GlusterFS On Debian Lenny

This tutorial shows how to combine four single storage servers (running Debian Lenny) to a distributed replicated storage with GlusterFS. Nodes 1 and 2 (replication1) as well as 3 and 4 (replication2) will mirror each other, and replication1 and replication2 will be combined to one larger storage server (distribution). Basically, this is RAID10 over network. If you lose one server from replication1 and one from replication2, the distributed volume continues to work. The client system (Debian Lenny as well) will be able to access the storage as if it was a local filesystem. GlusterFS is a clustered file-system capable of scaling to several peta-bytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. Storage bricks can be made of any commodity hardware such as x86-64 servers with SATA-II RAID and Infiniband HBA.

How To Configure SSH Keys Authentication With PuTTY And Linux Server In 5 Quick Steps

Fri, 26 Jun 2009 16:38:17 +0200

How To Configure SSH Keys Authentication With PuTTY And Linux Server In 5 Quick Steps

This tutorial explains how you can replace password-based SSH authentication with key-based authentication which is more secure because only the people that own the key can log in. In this example, we're using PuTTY as our SSH client on a Windows system.

Virtualization With XenServer 5.5.0

Thu, 25 Jun 2009 17:44:32 +0200

Virtualization With XenServer 5.5.0

This Howto covers the installation of XenServer 5.5.0 and the creation of virtual machines with the XenCenter administrator console. XenServer is a free virtualization platform from Citrix, the company behind the well known Xen virtualization engine. XenServer makes it easy to create, run and manage Xen virtual machines with the XenCenter administrator console. The XenServer installation CD contains a full Linux distribution which is customized to run XenServer.

Creating Portable DiskSafes With LoopbackFS And LVM Snapshots

Thu, 25 Jun 2009 11:36:02 +0200

Creating Portable DiskSafes With LoopbackFS And LVM Snapshots

This is the "DiskSafe" idea used to store backups of server data. This could be used to replace physical tape volume and still provide portablility. I have found pieces of this information around the Internet but nothing putting it all together.

Installation Of OpenERP Server 5.0, OpenERP GTK Client 5.0 And OpenERP Web Client 5.0.1 On Ubuntu Server 9.0.4 & Desktop 9.04

Wed, 24 Jun 2009 19:00:32 +0200

Installation Of OpenERP Server 5.0, OpenERP GTK Client 5.0 And OpenERP Web Client 5.0.1 On Ubuntu Server 9.04

This article will show you how to set up openerp-server 5.0.0-3-1 + openerp-client 5.0.0-3-1 + openerp-web 5.0.1 on Ubuntu Server 9.04. Open ERP (formerly named Tiny ERP) is the leader open-source ERP/CRM system written mostly in Python and initiated in Belgium. It offers a three-tier web architecture, ease of use and flexibility.

Distributed Storage Across Four Storage Nodes With GlusterFS On Debian Lenny

Tue, 23 Jun 2009 17:27:08 +0200

Distributed Storage Across Four Storage Nodes With GlusterFS On Debian Lenny

This tutorial shows how to combine four single storage servers (running Debian Lenny) to one large storage server (distributed storage) with GlusterFS. The client system (Debian Lenny as well) will be able to access the storage as if it was a local filesystem. GlusterFS is a clustered file-system capable of scaling to several peta-bytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. Storage bricks can be made of any commodity hardware such as x86-64 servers with SATA-II RAID and Infiniband HBA.

How To Set Up Journaled Quota On Debian Lenny

Tue, 23 Jun 2009 10:54:40 +0200

How To Set Up Journaled Quota On Debian Lenny

This tutorial shows how you can set up journaled quota on a Debian Lenny system. With journaled quota, you don't need to run quotacheck after an unclean shutdown. Journaled quota works on ext3 and ext4 file systems.

Using Network, Address Range Objects And Groups Of Addresses Objects In Firewall Builder

Mon, 22 Jun 2009 17:40:06 +0200

Using Network, Address Range Objects And Groups Of Addresses Objects In Firewall Builder