Turns out a new version of Wine. Wine 1.1.18 is a miracle, enabling you to run Windows applications under Linux. Wine gives us welcome the world of Microsoft Windows, not simply because it emulates its code but because it is a real implementation of the Windows API libraries. But the difference in the technique of "encapsulation", this is translating into 100% all the code for Windows.

For the first time, can run applications running under the popular operating system from Redmond, aka Microsoft Windows, UNIX machines, even without a Windows installation. Although 100% free of Windows source code, can optionally use native Windows DLLs if they are available.

Technorati Tags: Linux Administration Ebooks

Exim is a mail transfer agent (MTA) that can be run as an alternative to Sendmail on Unix systems.* Exim is open-source software that is distributed under the GNU General Public License (GPL), and it runs on all the most popular flavors of Unix and many more besides. A number of Unix distributions now include Exim as their default MTA. I wrote Exim for use on medium-sized servers with permanent Internet connections in a university environment, but it is now used in a wide variety of different situations, from single-user machines on dial-up connections to clusters of servers supporting millions of customers at some large ISP sites.

The code is small (between 500 KB and 1.2 MB on most hardware, depending on the compiler and which optional modules are included), and its perfor mance scales well. The job of a mail transfer agent is to receive messages from differ ent sources and to deliver them to their destinations, potentially in a number of differ ent ways. Exim can accept messages from remote hosts using SMTP† over TCP/IP, and as well as from local processes. It handles local deliveries to mailbox files or to pipes attached to commands, as well as remote SMTP deliveries to other hosts.

Technorati Tags: Linux Administration Ebooks

The developers of the OpenBSD operating system claim that it has been designed with security in mind. They claim that their proactive approach to security has allowed them to create a very secure operating system. The objective of this report is to examine the security philosophy in the OpenBSD operating system and how it has been implemented. Also, common areas for vulnerabilities will be examined to see how exposure in these areas has been mitigated.

Technorati Tags: Linux Administration Ebooks

All versions of UNIX work with computer terminals that handle a single window or a single login session. Most modern UNIX versions support one or more window systems. A window system is a package of programs that let a terminal handle many sessions at once. Along with the keyboard, window systems use a mouse or another device (such as a trackball) to move a pointer across the screen. The pointer can select parts of the screen, move them, help you copy and paste text, work with menus of commands, and more. If you've used a Macintosh, any version of Microsoft Windows, or OS/2 and its Presentation Manager (among others), you've used a window system. Figure 2.1 shows a typical display with windows.

Technorati Tags: Linux Administration Ebooks

This document will help a user install FreeBS D 4.7 Release, Snort 1.9.0, MySQL 3.23.53, and ACID-0.9.6b21. It will also guide the user through the process of securing the machine and getting the snort sensor(s) to log to a central database over stunnel. The intention is to give users that are new to any of the software the opportunity to build an enterprise-class system based completely on free, open-source tools. Following the instructions in this document will get you the following:
· Multiple FreeBSD boxes, one running the Windowmaker desktop. I chose Windowmaker because the intention of this tutorial is to create dedicated Snort machines. In other words Gnome and KDE are overkill for what we are doing here (and it looks nice).
· Locked-down machines (C2 in 2002!). I tried to be responsible with the securing of these boxes, but this is not a definitive guide to securing FreeBSD; there are several links to those at the end. If I have missed something obvious, feel free to point it out (nicely please) with your suggestion on exactly how to fix it.
· Multiple Snort sensors logging to a central MySql server/viewing station.
· An easy method of updating your software via the ports collection.
· The fastest NIDS for your money.

Technorati Tags: Linux Administration Ebooks

Linux is developed with a stronger practical emphasis than a theoretical one. When new algorithms or changes to existing implementations are suggested, it is common to request code to match the argument. Many of the algorithms used in the Virtual Memory (VM) system were designed by theorists, but the implementations have now diverged considerably from the theory. In part, Linux does follow the traditional development cycle of design to implementation, but changes made in reaction to how the system behaved in the “real world” and intuitive decisions by developers are more common.

Technorati Tags: Linux Administration Ebooks

When Linux 2.4 was released, most people focused on what it would do to help the average Linux user and talked about the USB support, firewire, PCMCIA and DRI. While these are great additions to the kernel for the majority of people, often one of the major improvements over 2.2 was overlooked, even though it applies almost as much to Joe (and of course Jane) User as it does to a hardened network engineer. This is, of course, the inclusion of the netfilter system into the kernel, which provides packet filtering and other more advanced IP features. Along with netfilter comes iptables, which is the 2.4 equivalent of ipchains, and provides a user-space interface to the filtering, Network Address Translation (NAT) and mangling modules.

We are going to look at building 2.4 with support for netfilter and iptables, then building a production level router out of it. For those of you who just have one machine, and use it to connect to the Internet, then many of the same rules apply. The Internet is one giant, generally unrestricted, network which any reasonable person would have reservations about putting any sort of machine on, never mind their own Linux system.

Technorati Tags: Linux Administration Ebooks

Not everyone has a halfdozen computers in their office or home so that they can use a separate machine for each OS they want to work with. After all, Tom Watson of IBM once said that he couldn't imagine a need for more than five computers in the entire world.

As a result, setting up a single machine to host more than one operating system is a common requirement. Unfortunately, much of the reference material out there is old or inappropriate for a dual boot of Fedora's latest release and the tried andtrue Windows XP. Here's how to get the two to coexist nicely on the same computer with a minimum of fuss, and not too much Linux expertise either!

Technorati Tags: Linux Administration Ebooks

It’s not that difficult just needs a bit of patience and someone who has been there before to guide you through the pitfalls. This is not a ‘how to use Ubuntu’ guide. My ThinkPad T40 is a standard model the only noteworthy items are that my T40 has:
● Mobility Radeon 7500 32MB (opposed to Radeon 9000 or the T40p)
● Intel ‘Centrino’ 2100B 802.11b wireless card
● XGA Screen (1024x768)
I am not aware of issues with other wireless cards such as the Intel 2200BG card. The only requirement is that you have some form of Internet connection preferably over wireless in order to get some of the updates and applications that I have included here.

Technorati Tags: Linux Administration Ebooks