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1 month ago
Building the "Gordo-48" and "fitting it all together."

A Gordo-48 replaces 40 standard Servers but uses less than 500 Watts in an hour.

A standard Server uses around 500 Watts, times 40 Servers = 20,000 Watts per hour. You do the math. - Todd W. Byars, Computer Dudes, Tallahassee, Florida

#computerdudes #toddwbyars #newlinemicroservers #projectgordo #gordo48 #unitedstatesofamerica

1 month ago
Order for Pickup Home Depot, W Tallahassee. Jan 14th or after.
Order #W945174892
Order Total: $28.93 Charged to Dudes care Online

1 month ago
"The existence of a polynomial-time quantum algorithm proves that one of the most widely used cryptographic protocols is vulnerable to an adversary who possesses a quantum computer. However, it is theoretically accepted that quantum computers could equally be used to counteract against adversarial actions of this kind with the laws of quantum mechanics applied in this cryptographic capacity (through use of quantum computers) paving the way to quantum cryptography."

Our "Gordo-24" is a "Quantum Computer" that can be configured for non-standard computing. ;)T

1 month ago
Nice Try Iran. You hacked one level of passwords on one of our servers but got locked out due to the geographic location of your servers.
Next time, mask your IP number. Don't be too embarrassed, we busted China with the same trick over a year ago. ;)T

4 months ago
This week we will be playing with replacing Microsoft Active Directory with the new SAMBA4 on several versions of Linux including Raspberian. :)T

4 months ago
I do not consider other Tech Companies or their owners and employees as competition.

I think of them as my Brothers and Sisters. - Todd W. Byars, founder The Computer Dudes, Inc. Tallahassee, Florida.

6 months ago
Cisco Command Line is still the best. ;)T


8 months ago
https://mycomputerdudes.com/product/3d-printed-rocket-from-guardians-of-the-galaxy/ Follow this link to purchase a 3-d printed plastic model of "Rocket" Racoon from Guardians of the Galaxy! Super detailed!! :)T

8 months ago
Here is an interesting website that does Site Ranking and Search Engine Ranking for any website. It generates a free report online and in PDF format. https://checkpagerank.net/index.php

1 year ago
Chatbox Active: Sorry, you have to be a Computer Dude to post here. ;)

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Computer Dudes Focus


The Computer Dudes, Inc's:  Focus and High Traffic Technology News

This section gives special Focus on current Technology Issues in homes and small businesses.  

Read more..

A cluster of "Pi" offers new hope in decrypting Ransomware. A cluster of 4 Raspberry Pi 4B's we named "Chico" because it is smaller than a loaf of bread.

Why pay Ransom for Ransomware? Instead break the encryption using super fast minicomputers or clusters like "Chico"

Ransomware has become an annoying problem here in Florida and the Southeastern United States.   Many small companies and government agencies are not prepared and have no defense against the attacks.   They also have no money to get new computers or repair the security problems that let the Ransomware in.   

Maybe there is another solution:  Break the Encryption with powerful minicomputers like the new Raspberry Pi 4 or clusters of them.  

That is one of the projects we are working on here at Computer Dudes this week.   We are clustering 4 of the new Raspberry Pi 4's that have 4 Gb of DDR4 memory.   We named it "Chico" because it is smaller than a loaf of bread.

Below are some of the things we are looking at in addition to Decryption Projects as well as how we plan to setup the cluster for maximum efficiency. 

1) Already making mods to the original configuration. We found a Windows Utility that will Format an SDCard in FAT 32 up to 2 Tb. (far past the Microsoft limitation of 32Gb)  We used the fastest Camera Grade SDCards we could find with 64 Gb each.so a 4 Pi cluster has 256 Gb of Solid State Camera Grade SDCards as its primary Hard Drive.

2)  But, as fast as those SDCards are they are snails compaired to the speed of the 4 Gb of DDR4 RAM memory.  So we will have to use some of the DDR4 memory as a RAMDisk. Its gonna be sick how fast it is.

3) We are naming the cluster version "Chico" "My little friend, Chico!". "Chico" the portable supercomputer, running off a cell phone battery.  ;)

4)  The WiFi and Bluetooth are great but for pure computing strength we will shut them both down and use the Gigabit Ethernet Port.  Every un-needed driver, program, or function shut down and removed increases the computing power of the Raspberry Pi 3 and 4.

5)  Next we will be shut down devices and functions not used to save computing and electric power. More on that here:  https://learn.pi-supply.com/make/how-to-save-power-on-your-raspberry-pi/  

6)  Then we will setup a RAMdrive and set the software to load the RAMdrive from the SDcard and then booting from the RAMdrive. (Because it is much faster)   https://www.domoticz.com/wiki/Setting_up_a_RAM_drive_on_Raspberry_Pi?

7)   When the cluster is complete it can be used as a high speed webserver.   In fact, the Raspberry Pi manufacturer uses a cluster of Pi's to host their website and support sites.  Very heavy, interactive websites with all sorts of multimedia too.   https://www.techrepublic.com/article/low-cost-raspberry-pi-4-cluster-hosts-official-pi-website-handles-record-traffic-for-pi-4-launch/

Update for Monday, September 16, 2019

Today we reviewed memory device speed for the Raspberry 4B.   

USB 3.0  vs MicroSD Storage

Since Raspberry Pi 4 now comes with two USB 3.0 ports, which support  ~100MB/s read/write speed,  Connecting a SSD USB 3.0 Drive gets even better speed..

But before you settle on one of those devices check out the transfer speed of the DDR4 on the Raspberry Pi 4.

DDR4 data transfer rate:

  • DDR4 2133:17 GB/s
  • DDR4 2400:19.2 GB/s
  • DDR4 2666:21.3 GB/s
  • DDR4 3200:25.6 GB/s

Update for the Week of October 7th, 2019

The first successful field test was conducted at an office building and residence near downtown Tallahassee, Florida.

We boosted Chico's Hardware configuration up to 7  Raspberry Pi 4B's and we had to order a cable to add the 8th one NEXT week.

The onside tests were successful.  No problems with heat, power, batteries or networking.

Next Week we are going to work on the clustering and ramdisk to increase the speed of all operations.

More soon.  - Todd :) 

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