Difference between pages "DomainKeys Identified Mail" and "Linux Repositories"

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'''DomainKeys Identified Mail''' ('''DKIM''') is a method for signing email messages to help eliminate spam.  
+
There are a number of linux distributions.
  
The signature in each message should give the domain (<tt>d=</tt>) and selector (<tt>s=</tt>). The appropriate key can be retrived as a TXT [[Domain Name System|DNS]] record from the host <tt>''selector''._domainkey.''domain''</tt> [http://www.elandsys.com/resources/sendmail/dkim.html]. A sample message from Gmail had the following DKIM header:
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In general they have primary repositories which are setup for every installation of the operating system and they have special purpose repositories which require specific setup.
  
<pre>
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=Repository Setup=
DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed;
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==openSUSE==
        d=gmail.com; s=beta;
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For current openSUSE 11.4 and 12.1 users it is necessary to have the following repositories configured:
</pre>
+
  
We can thus retrieve the Gmail key with:
+
*security
 +
*devel:languages:perl
 +
*devel:languages:python
  
<pre>$ host -t txt beta._domainkey.gmail.com
+
This is most easily done from the command line via (assumes openSUSE 12.1):
beta._domainkey.gmail.com descriptive text "t=y\; k=rsa\; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC69TURXN3oNfz+G/m3g5rt4P6nsKmVgU1D6cw2X6BnxKJNlQKm10f8tMx6P6bN7juTR1BeD8ubaGqtzm2rWK4LiMJqhoQcwQziGbK1zp/MkdXZEWMCflLY6oUITrivK7JNOLXtZbdxJG2y/RAHGswKKyVhSP9niRsZF/IBr5p8uQIDAQAB"</pre>
+
  
 +
sudo zypper ar -f <nowiki>http://download.opensuse.org/repositories/security/openSUSE_12.1</nowiki> security
 +
sudo zypper ar -f <nowiki>http://download.opensuse.org/repositories/devel:/languages:/perl</nowiki>/openSUSE_12.1 perl
 +
sudo zypper ar -f <nowiki>http://download.opensuse.org/repositories/devel:/languages:/python/openSUSE_12.1</nowiki> python
 +
 +
zypper lr  <nowiki>          </nowiki>  # used to verify you have the repos installed
  
== External Links ==
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==fedora==
* [http://www.dkim.org/ Official website]
+
==debian==
* [http://en.wikipedia.org/wiki/DomainKeys_Identified_Mail Wikipedia entry on DKIM]
+
==ubuntu==
 +
 
 +
=Computer Forensic Tools=
 +
Below is a list of computer forensic tools.  For each tool the repository it can be found in and the version in the repository is shown.
 +
 
 +
As an example, aimage is in the openSUSE security repository and it is version 3.2.5
 +
 
 +
==Imaging Tools==
 +
 
 +
{|border="1" cellpadding="2" cellspacing="0" {{repository table}}
 +
|-
 +
|rowspan=1| '''Tool'''
 +
|'''openSUSE'''
 +
|'''fedora'''
 +
|'''debian'''
 +
|'''ubuntu'''
 +
|'''comment'''
 +
|'''General Remarks'''
 +
 
 +
|-
 +
|rowspan=1| [http://www.e-fense.com/helix/ adepto]
 +
|N/A <!-- opensuse -->
 +
|?              <!-- fedora-->
 +
|?              <!-- debian-->
 +
|?              <!-- ubuntu-->
 +
|  <!-- comment -->
 +
|adepto is included in the helix boot cd<!-- General Remarks -->
 +
 
 +
|-
 +
|rowspan=1| [[aimage]]
 +
|security/3.2.5 <!-- opensuse -->
 +
|?              <!-- fedora-->
 +
|?              <!-- debian-->
 +
|?              <!-- ubuntu-->
 +
|a imaging tool to create aff format images  <!-- comment -->
 +
|aimage has been EOL'ed.  guymager or ftkimager (windows/mac) are recommended for creating aff images. <!-- General Remarks -->
 +
 
 +
|-
 +
|rowspan=1| [[AIR]]
 +
|N/A <!-- opensuse -->
 +
|?              <!-- fedora-->
 +
|?              <!-- debian-->
 +
|?              <!-- ubuntu-->
 +
|Automated Image and Restore  <!-- comment -->
 +
|a GUI front-end to dd and dc3dd designed for easily creating forensic bit images <!-- General Remarks -->
 +
 
 +
|-
 +
|rowspan=1| [[dc3dd]]
 +
|security*/7.1.614 <!-- opensuse -->
 +
|?              <!-- fedora-->
 +
|?              <!-- debian-->
 +
|?              <!-- ubuntu-->
 +
|DoD Cyber Crime Center DD  <!-- comment -->
 +
|This tool was formerly known as dcfldd.  When released as dc3dd it was totally rewritten. <!-- General Remarks -->
 +
 
 +
|-
 +
|rowspan=1| [[ddrescue]]
 +
|Base/1.14 <!-- opensuse -->
 +
|?              <!-- fedora-->
 +
|?              <!-- debian-->
 +
|?              <!-- ubuntu-->
 +
|Also known as GNU ddrescue<!-- comment -->
 +
|This tool is different than dd_rescue.
 +
 
 +
|-
 +
|rowspan=1| [[dd_rescue]]
 +
|N/A <!-- opensuse -->
 +
|?              <!-- fedora-->
 +
|?              <!-- debian-->
 +
|?              <!-- ubuntu-->
 +
|<!-- comment -->
 +
|This tool is different than GNU ddrescue.
 +
 
 +
|-
 +
|rowspan=1| [[IXimager]]
 +
|N/A <!-- opensuse -->
 +
|?              <!-- fedora-->
 +
|?              <!-- debian-->
 +
|?              <!-- ubuntu-->
 +
|A law enforcement only imager<!-- comment -->
 +
|used in conjunction with ILook Investigator
 +
 
 +
|-
 +
|rowspan=1| [[libewf|ewfacquire]]
 +
|security*/20100226 <!-- opensuse -->
 +
|?              <!-- fedora-->
 +
|?              <!-- debian-->
 +
|?              <!-- ubuntu-->
 +
|a imaging tool to create ewf format images  <!-- comment -->
 +
|ewfacquire is part of ewftools in some distributions.<!-- General Remarks -->
 +
 
 +
|-
 +
|rowspan=1| [[LinEn]]
 +
|N/A <!-- opensuse -->
 +
|?              <!-- fedora-->
 +
|?              <!-- debian-->
 +
|?              <!-- ubuntu-->
 +
|a proprietary imaging tool to create ewf format images  <!-- comment -->
 +
|included on the Helix boot CD<!-- General Remarks -->
 +
 
 +
|-
 +
|rowspan=1| [[guymager]]
 +
|N/A<!-- opensuse -->
 +
|?              <!-- fedora-->
 +
|?              <!-- debian-->
 +
|?              <!-- ubuntu-->
 +
|a imaging tool to create aff format images  <!-- comment -->
 +
|Guymager is an open source forensic imager. It focuses on user friendliness and high speed.  <!-- General Remarks -->
 +
 
 +
|-
 +
|rowspan=1| [http://sourceforge.net/projects/rdd rdd]
 +
|N/A <!-- opensuse -->
 +
|?              <!-- fedora-->
 +
|?              <!-- debian-->
 +
|?              <!-- ubuntu-->
 +
|a dd-like tool, with forensic imaging features  <!-- comment -->
 +
|Rdd is robust with respect to read errors<!-- General Remarks -->
 +
 
 +
|-
 +
|rowspan=1| [ftp://ftp.berlios.de/pub/sdd/ sdd]
 +
|Archiving:Backup/1.52 <!-- opensuse -->
 +
|?              <!-- fedora-->
 +
|?              <!-- debian-->
 +
|?              <!-- ubuntu-->
 +
|a dd-like tool<!-- comment -->
 +
|Designed to work well when IBS != OBS.  Working with tape is an example.<!-- General Remarks -->
 +
 
 +
|}
 +
 
 +
*package will appear in the base release with the next full distribution release.

Revision as of 20:28, 24 February 2012

There are a number of linux distributions.

In general they have primary repositories which are setup for every installation of the operating system and they have special purpose repositories which require specific setup.

Repository Setup

openSUSE

For current openSUSE 11.4 and 12.1 users it is necessary to have the following repositories configured:

  • security
  • devel:languages:perl
  • devel:languages:python

This is most easily done from the command line via (assumes openSUSE 12.1):

sudo zypper ar -f http://download.opensuse.org/repositories/security/openSUSE_12.1 security
sudo zypper ar -f http://download.opensuse.org/repositories/devel:/languages:/perl/openSUSE_12.1 perl
sudo zypper ar -f http://download.opensuse.org/repositories/devel:/languages:/python/openSUSE_12.1 python

zypper lr               # used to verify you have the repos installed

fedora

debian

ubuntu

Computer Forensic Tools

Below is a list of computer forensic tools. For each tool the repository it can be found in and the version in the repository is shown.

As an example, aimage is in the openSUSE security repository and it is version 3.2.5

Imaging Tools

Tool openSUSE fedora debian ubuntu comment General Remarks
adepto N/A ? ? ? adepto is included in the helix boot cd
aimage security/3.2.5 ? ? ? a imaging tool to create aff format images aimage has been EOL'ed. guymager or ftkimager (windows/mac) are recommended for creating aff images.
AIR N/A ? ? ? Automated Image and Restore a GUI front-end to dd and dc3dd designed for easily creating forensic bit images
dc3dd security*/7.1.614 ? ? ? DoD Cyber Crime Center DD This tool was formerly known as dcfldd. When released as dc3dd it was totally rewritten.
ddrescue Base/1.14 ? ? ? Also known as GNU ddrescue This tool is different than dd_rescue.
dd_rescue N/A ? ? ? This tool is different than GNU ddrescue.
IXimager N/A ? ? ? A law enforcement only imager used in conjunction with ILook Investigator
ewfacquire security*/20100226 ? ? ? a imaging tool to create ewf format images ewfacquire is part of ewftools in some distributions.
LinEn N/A ? ? ? a proprietary imaging tool to create ewf format images included on the Helix boot CD
guymager N/A ? ? ? a imaging tool to create aff format images Guymager is an open source forensic imager. It focuses on user friendliness and high speed.
rdd N/A ? ? ? a dd-like tool, with forensic imaging features Rdd is robust with respect to read errors
sdd Archiving:Backup/1.52 ? ? ? a dd-like tool Designed to work well when IBS != OBS. Working with tape is an example.
  • package will appear in the base release with the next full distribution release.