[SATLUG] Converting RHEL to CentOS

[Tom Weeks]

On Tuesday 18 September 2007 12:41:50 Chris Lemire wrote:
> I'm looking for the guide or files needed to convert RHEL to CentOS that
> was talked about in last nights meeting. I have checked here.
>
>   http://xcssa.org/files/index.html
>
>   The speaker said to google for something to find a forum topic about it.

I believe that you're mixing a couple of different questions and answers from 
the XCSSA talk.. (and usually, you'll get a faster response on XCSSA 
questions by asking them on the xcssa.org mail list. ;)  But I'll try to 
address them and CC this over to the XCSSA list.

1) During Robert's presentation, you (or someone) had asked about installing 
RHEL5 and then making it get all of it's patches from the CentOS repos.  This 
surprised me because I didn't realize that the RedHat source RPMs were clean 
enough to do this (but I guess they are).  Anyway, we said to google for 
RHEL5 CentOS ans yum.  In short, you remove the Red Hat repos from 
the /etc/repos.d/ directory (don't delete them, just edit and change from 
eneabled=1 to 0. Then follow directions here:
	http://www.centos.org/modules/newbb/viewtopic.php?topic_id=7905

2) I think that the second question was in relation to the client and server 
side of setting up port knocking.  The info you seek on doing old fashion 
port knocking is here:
	http://www.portknocking.org/

as well as single packet authorization w/a digitally signed packets, see here:
	http://www.cipherdyne.org/fwknop/

and here is the XCSSA member who presented on these (at XCSSA a couple months 
back) as well as the Dynamic Firewall Project that he wrote and who is now 
looking for a project maintainer to take it over:
	http://www.subspacefield.org/~travis/dfd/

Cheers,

Tweeks