Archive for the ‘Uncategorized’ Category

FreeBSD USB Boot

Wednesday, May 27th, 2009

One of the common perils of FreeBSD is that it’s not as user friendly in some cases as I believe it should be. It has taken some time for DVD images to become common for installation, and creating a bootable USB device has been problematic at times too. I figured I would provide an image that has worked (for me) on a few different systems. It doesn’t always work, but should help you out in a pinch. It enables console on the serial ports (com1/com2) after it boots up, so can help out in a pinch since the distributed bootable media does not include obvious ways to access utilities such as ufs/ffs capable mount or ways to put the console on com2 without rebuilding from source.

I hope this link helps you (and others) out, and if it does, I will try to post updated USB media images to help others.

http://puck.nether.net/~jared/mirror/FreeBSD-7.1p4.dmg.bz2 – MD5 (FreeBSD-7.1p4.dmg.bz2) = 2ca1fd7a66d9251d503fdd56ff2b9707

This image is for 512MB media and has no root password set, uses GRUB 0.97 and enables console on ttyd0/ttyd1. GRUB also should be enabled for both the serial console (COM1) & monitor. The same is true for the FreeBSD loader.

You will need to uncompress this (bunzip2) and write it to your USB media with a tool such as dd.

*WARNING* Make sure you use the correct output file (device).

Example:

dd if=FreeBSD-7.1p4.dmg of=/dev/da0 bs=1024k
483+1 records in
483+1 records out
506986496 bytes transferred in 51.327206 secs (9877539 bytes/sec)

If you want to write this from a mac, find the correct device eg:

sh-3.2# diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *931.5 Gi   disk0
   1:                        EFI                         200.0 Mi   disk0s1
   2:                  Apple_HFS Macintosh HD            931.2 Gi   disk0s2
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *483.5 Mi   disk2
   1:                    FreeBSD                         483.0 Mi   disk2s1

In this case, you want /dev/disk2

fring beams your audio via Israel

Wednesday, February 11th, 2009

While evaluating the SIP client fring on the iPhone it came to my attention that they were doing the registration from behind a machine in Israel. This means your authentication credentials are possibly compromised, and your audio stream may go half-way around the world and be subject to intercept by a number of different parties. Not exactly what you want from your VoIP client. Then again, if you’re paranoid about security, you won’t talk about things that really matter over VoIP anyways.

Savings Rate positive

Tuesday, January 6th, 2009

Being a news junkie, I read something last week talking about how the savings rate was now positive whereas it has long been negative, and just came across an article with more data surrounding the current change in savings rates at the WSJ.

I know I personally am in this paradox zone, having opened two different savings accounts in the past year and earned more in interest this past year than the past 5 or so combined. Life should be interesting this coming year.

Good malware?

Wednesday, December 31st, 2008

I’ve always thought about the idea of “Good” malware as a solution to some of the problems out there. The idea being that you use the same techniques used to compromise systems but to change some settings to a more secure value, but using some of the subversive methods to propogate.

Some of the settings that I consider a good default to change:
* Daily checks for software updates + Auto-Install of these updates
* Disable compromising features (eg: AutoRun)

Things to perhaps change
* Disable ActiveX
* Enable firewall (w/ exception handling)
* Nuke all AutoRun items
* Nuke all MSIE malware/extensions except “safe” plugins, eg: flash, quicktime, silverlight, etc..

The natural problem with this is doing good things with these bad techniques would likely get you classified as a virus/malware, and certainly if you attempt to do some of the network-scanning activities to distribute yourself. Too bad one cannot justify such activities legally.

Azek Trim Installation

Monday, September 1st, 2008

After doing some test work with some various types of trim, it turns out that the installation of Azek wood trim is the best thing to do these days.  It avoids the challenges of painting and rotting that may happen with wood trim.  Personally, I’m in love outside of the expensive nature of the wood trim.

CNN live feed url

Monday, August 25th, 2008

If you are like me, and don’t want to watch streaming video in a browser window, and would rather use VLC, you can find links such as http://cnn-cnnlive-2-primary.wm.llnwd.net/cnn_cnnlive_2_primary?MSWMExt=.asf by carefully tracking the browser path.  Looks like they’re using Limelight for this.  Interesting.

Biden + Obama

Saturday, August 23rd, 2008

Personally, I find the pick interesting because he has issues staying on message and can easily get himself in trouble with words, but it does provide balance to Obama who is well polished in his speaking and manners.  Also, our current president isn’t exactly known for being a perfect orator.  We’ll see if the Romney prediction is correct in the future.

comcast.net “hijacked”

Thursday, May 29th, 2008

Well, this isn’t exactly as bad as it sounds actually, but it’s worth noting that some people have not learned from the aol.com and other dns server redirections in the past.  What happens is someone submits a web form or spoofs an email and it moves the dns for your domain to some other servers.  In this case, the fallout will be felt for up to two days by some people.  This can seriously hurt your reputation as folks may think that the security of your relationship with your registrar is congruent with your overall security strategy.  Most (All?) registrars allow you to put your domain in some form of a locked mode.  My domain (nether.net) has the following flag set: clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited

It may be time to review what your settings are and make sure history does not repeat itself on your domains.

More telecom consolidation?

Friday, January 18th, 2008

Some folks are looking at the problems that Sprint/Nextel had monetizing their “merger of equals” several years ago.  The Wall Street Journal have taken a brief look at this and the huge losses over the lifetime of the merger.  I doubt that AT&T or Verizon will acquire Sprint.  You may recall that MCI/Worldcom tried to acquire Sprint and was rebuffed by regulators.  Possible acquisitions could come from anyone from ISPs to other telcos.  This could range from Cogent to Level3 or Qwest. Personally I had always wondered how they would merge two networks that used different technologies for a win.  Nextel had higher revenue per subscriber due to their two-way feature, but Sprint hasn’t had any compelling products in recent years as AT&T(Cingular) launched the iPhone, and others attempt to compete. 

15 nanometer water filter

Wednesday, September 12th, 2007

Talk about a small filter, there is a company in the UK that has shown off a water filter that costs 190GBP and will provide drinkable water as the output even if it has fecal matter in it. Seems like something quite valuable, and should be added to most folks home emergency kits. Time to hunt one down.