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Nessus, Exploitation Tools and Payloads

Release Date: 2012-03
Bsd_03_cover
Rating: 9 votes

Issue_contents

  • MaheshaBSD-2.0: What’s New On The Lake Manasarovar?
  • GhostBSD: A Brief Overview
  • How Do I Study for the BSDA Certification?
  • GDB and Truss for Debugging
  • PostgreSQL: MVCC and Vacuum
  • Beowulf Clusters with DragonflyBSD
  • Npppd: EasyPPTP VPN with OpenBSD
  • Anatomy of FreeBSD Compromise Part 4
  • Articles

    • Free Issue to Download! BSD 3/2012

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    • MaheshaBSD-2.0 - What's New On The Lake Manasarovar?

      To readers who have not yet come across the 2010 May issue of the BSD Mag, where MaheshaBSD-1.0 was first introduced, I reiterate that MaheshaBSD is a free homemade project – a Live CD based on FreeBSD that puts together the Hindu feel and FreeBSD. A few things give it this touch – for example, a possibility to use 4 keyboard layouts also with Devanagari (an Indian script used for writing Sanskrit and contemporary Indian languages) and IAST (transliteration of Sanskrit), the author’s Xmodmap solution. Its name is derived from Mahesha, one of the names of Lord Shiva. The name Mahesha (MaheshaBSD) was chosen because Lord Shiva is armed with the same weapon as FreeBSD – the trident.


    • GhostBSD: A Brief Overview

      GhostBSD was created to encourage the use of FreeBSD users with little experience, and also for those curious who want to learn freebsd in a simple, or for those seeking a more robust alternative to the current options available in Linux kernels. An operating system with graphical environment, simple and useful, as is implemented in GhostBSD, it helps enthusiasts to take their first steps, provides more security and incentive to experiment.


    • How Do I Study for the BSDA Certification?

      The previous article in this series addressed some common misconceptions about certification and described why you should be BSDA certified. This article will discuss how to prepare for the BSDA certification exam.


    • GDB(1) and Truss for Debugging

      Sometimes you are lucky to have the source code for the program you need to debug. However, there are times when the source code isn’t available. When all hell is breaking loose, what do you do? On your unix machine there are tools that can save the day. OpenBSD, FreeBSD and NetBSD all have the ktrace utility for following the various kernel related activities of a given process. FreeBSD has a tool specifically for tracing system calls. It’s called truss(1) and when used together with gdb(1) it can give you a clearer view into a black box.


    • PostgreSQL: MVCC and Vacuum

      In the previous article readers have seen how to quickly install and configure a PostgreSQL cluster, as well as how to do logical backups, using pg_dump(1) and physical backup (with particular regard to Point In Time Recovery). This article shows a little more about PostgreSQL internals and how it exploits MVCC for high concurrency. Readers will also learn about the importance and usage of vacuum for regular maintanance.


    • Beowulf Clusters with DragonflyBSD

      There are two types of computing clusters: High availability (HA) clusters are designed so that if one computer fails, the other(s) take over its job. HPC clusters enable many computers to do the same job together so that processing power is increased. We’re going to focus on the latter. An HPC cluster on consumer grade hardware is called a Beowulf after the classic poem written sometime between 700 – 1000 AD. Beowulf technology is the result of a 1994 cooperative research project between NASA and several universities. Since DragonflyBSD development focuses so much on performance, it seems the best option for a BSD Beowulf. In fact, HPC clusters are one of the stated design goals of DragonflyBSD.


    • NPPPD: Easy PPTP VPN with OpenBSD

      Have you ever needed to set up a VPN for Microsoft Windows or Mac OS X users? From this article you will find out how to configure OpenBSD and npppd to provide PPTP and L2TP VPN’s in a few easy steps. In January 2010, npppd was imported into the OpenBSD source tree and this software can act as a PPTP/L2TP VPN server and also as a PPPOE server. Because npppd is still under active development and still missing some features, it is not linked to the standard build yet, so to install the program you first need to build it from OpenBSD source tree.


    • Anatomy of a FreeBSD Compromise (Part 4)

      Continuing our security series, we will look at the vulnerabilities on our test network. From the last article, we discovered that to penetrate a system we continually needed to move from the general to the specific, and to identify the most vulnerable system on our network depending on what services were running on it


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