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Written by Jason Kendall
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Monday, 29 December 2008 00:26 |
A little back ground: I like Xen - works (almost) great on my hardware. However there is a few bugs that still exist in the Ubuntu kernels, that newer kernels don't have. I've been told (via IRC) that SUSE (Open in my case) has some of the best support for Xen in it's kernels. So I'm documenting my Jurny in updating my Ubuntu Xen machine's Kernel to a newer OpenSuse Kernel:
First off, You need to download the new RPM from the website. The following link will give you a list of Xen Kernels for the [Almost] latest version of OpenSuse: http://software.opensuse.org/search?baseproject=openSUSE%3A11.0&p=1&q=Kernel-xen Look for the one with the highest number - At this time it is: kernel-xen-2.6.25.20-13.1.i586.rpm
Download and extract the RPM into a temp directory: (Need to figure this one out - I use Midnight Commander, and I was able to enter the RPM, then enter the CPIO file, extracting tha data from there)
Once you have the extracted Directories (/boot, /etc, /lib, /usr) copy them to the root drive. There shouldn't be any duplicate files.
Ubuntu provides two scrtipts you need to run next;
- Create a initrd.img file for the kernel by running: update-initramfs -k [kernel name] -c
- Look for the installed System.map file to find the name, in this case it is 2.6.25.20-13-xen
- Update your grub by running: update-grub
[At this point, I did things in the wrong order so I Crashed, I'll update this after I test again.]
Update 1:
- I just rebooted the server after re-running the update-grub command. This time, I got a full boot, but Xend didn't seem work. I'll need to work on this issue next.
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Written by Jason Kendall
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Friday, 31 October 2008 12:11 |
There have been some reports that Sprint and Cogent are having a bit of a problem.
Seems they are in a tiff about the peering agreement. Sprint has since removed their peering from Cogent.
This basically means, traffic to/from sprint and cogent need to find a different way to route between them. This effects anyone down stream as well. Meaning, if you have a internet link from Sprint, and try to get to someone on Cogent's network - you may not be able too.
This would all hinge on whether or not they have peering agreements with others that allow them to route the other networks - which may not exist since they already had peering.
This is gonna cause some internet instability for some users.
http://isc.sans.org/diary.html?storyid=5264
http://tech.slashdot.org/tech/08/10/31/0439245.shtml
PR from Cogent is here: http://www.prnewswire.com/cgi-bin/stories.pl?ACCT=104&STORY=/www/story/10-30-2008/0004915721&EDATE=
I was not able to find PR from Sprint.
Internet Heath Report: http://www.internetpulse.net/Main.aspx?Period=RH1
(Sorry for the unlinkable links - seems something is messed up with my Beta Browsers - Teach me to run only beta browsers)
** UPDATE 11/3/08 11:00AM **
It seems Sprint was disconnecting Cogent from it's network back in early October. The finally cuts only happened on the 31st. This will get interesting to see what happens next.
Sprint's response to the disconnect: https://www.sprint.net/cogent.php
On a good note - it appears as tho the link was brought back up in the last 24 hours.
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Written by Jason Kendall
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Thursday, 23 October 2008 14:59 |
** MS Security ALERT **
Please note a critical security patch has been released out-of-cycle for Microsoft Products.
Please patch ASAP.
** UPDATE 10/24/08 11:00 EST **
Ensure you block the following at your Web Gateways:
- hxxp://summertime.1gokurimu.com
- hxxp://perlbody.t35.com
- hxxp://doradora.atzend.com
** UPDATE 10/24/08 14:30 EST **
** UPDATE 10/27/08 09:30 EST **
Details on the Milw0rm POC: http://www.dontstuffbeansupyournose.com/?p=35
Regards,
Jason
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Written by Jason Kendall
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Friday, 03 October 2008 21:47 |
So I have a need for a encrypted disk - as a loop back file. I wrote earlier on how to restore a partimage backup to loopback, so lets see if we can make this work.
- We need to tell the kernal how to encrypt disks with a module
- Create the loop file (like before, but with urandom to help hide the disk, the count is MB*1000 so in this case 1M)
- Create the loopback device (I'm going to use TwoFish)
- At this point, you will be asked for a password - create your own
- Create the file system of choice (ext3 for me)
- Mount the new loop back point /dev/loop0
Enjoy!
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Written by Jason Kendall
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Wednesday, 17 September 2008 10:06 |
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Tuesday nights, around 8:30 PM EDT My good friend Marcel Gagne (WFTL) does a online TV show. Topics range from general chatter, to linux and to security. Last night, I was the guest co-host on the topic of security.
I envite you to watch the live broad casts, and the recordings.
List of Episodes I'm Co-Hosting:
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