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ERROR: Can’t start miner, cuda exception in [check_if_cuda_really_exists, 248], invalid argument

I just rebooted my miner, had not run any updates, had not run anything, just rebooted my miner, tried turning t-rex back on, and received the following error: ERROR: Can’t start miner, cuda exception in [check_if_cuda_really_exists, 248], invalid argument

To fix this I had to perform the following
Login to the miner
Type:
sudo bash
apt-get update
apt-get upgrade
y
ubuntu-drivers devices
Check to see if the 450 driver is available:

vendor : NVIDIA Corporation
model : GP102 [GeForce GTX 1080 Ti]
driver : nvidia-driver-390 – distro non-free
driver : nvidia-driver-460-server – distro non-free
driver : nvidia-driver-450-server – distro non-free
driver : nvidia-driver-460 – distro non-free recommended
driver : nvidia-driver-418-server – distro non-free
driver : nvidia-driver-450 – distro non-free
driver : xserver-xorg-video-nouveau – distro free builtin

Now run the following command
apt purge nvidia-driver-460-server
y
apt install nvidia-driver-450-server
y
reboot

Once your miner comes back online, you can now run t-rex fine.

The hardware that I used in this guide:
Gigabyte AORUS GeForce GTX 1080 Ti (QTY 6):
https://amzn.to/2JqvXC8

Motherboard (QTY 1): 
https://amzn.to/2JqGJZ7

CPU (QTY 1): 
https://amzn.to/3qevp2X

Memory (QTY 1): 
https://amzn.to/2JqHn8Z

Hard Drive (QTY 1):  
https://amzn.to/3lic3X5

Risers (QTY 6):  
https://amzn.to/33rIgVE

Power Supplies (QTY 2):
https://amzn.to/3fTRpLR

Add2PSU (QTY 1):
https://amzn.to/39s4URY

Power Switch (QTY 1):  
https://amzn.to/3ljmNVk

INSTALL MONGODB ON RASPBERRY PI 4

By far the best guide I have found, in starting this journey, was written by Mark Smith on https://developer.mongodb.com/how-to/mongodb-on-raspberry-pi/

If you want to see why things work the way they do, please visit his guide. My guide below is just the commands, and how I am connecting into the database once it is setup.

To begin, first you will want to install Ubuntu Server 20.10 as described here:
https://tacticalware.com/install-ubuntu-server-20-10-64-bit-on-raspberry-pi-4-using-a-m-2-drive/

Once you are up and running, ssh into the Raspberry Pi
Login

From the terminal run the following:
sudo bash

wget -qO – https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add –

echo “deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse” | tee /etc/apt/sources.list.d/mongodb-org-4.4.list

apt-get update

apt-get install -y mongodb-org

systemctl daemon-reload

systemctl enable mongod

systemctl start mongod

systemctl status mongod

CTRL button +c to exit

mongo
use admin

db.createUser( { user: "admin",
 
        pwd: "SuperSecretPassword",

        roles: [ "userAdminAnyDatabase",

                 "dbAdminAnyDatabase",

                 "readWriteAnyDatabase"] } )

exit

nano /etc/mongod.conf

Add these lines to the end of the file

security:

   authorization: enabled

CTRL +x to Exit
Y to Save

systemctl restart mongod

mongo

db.adminCommand({listDatabases: 1})

Make sure you had no errors

exit

mongo -u “admin” -p

Enter your admin password for mongo, aks your SuperSecretPassword

Type
db.adminCommand({listDatabases: 1})
This will list out your databases and ensure you created it properly

exit

nano /etc/mongod.conf
and Change the bind ip from 127.0.0.1 to 0.0.0.0

net:
   port: 27017
   bindIp: 0.0.0.0

CTRL +x to Exit
Y to Save

systemctl restart mongod

ufw allow 27017/tcp

MongoDB is now successfully setup and running. On to configuring the Windows 10 system

To connect to the MongoDB from a Windows 10 computer

Open an Internet Browser on your Windows 10 computer
Navigate to https://robomongo.org/
Download the Robomongo Robo 3T Client
Once you install it, add these settings to connect to your system
Click Create
Connection Tab
Type – Direct Connection
Address – The IP of your Raspberry Pi
Port 27017
Authentication Tab
Check mark Perform Authentication
Database is admin
User Name is admin
Password is your SuperSecretPassword
Auth is SCRAM
Click Save
Click Connect

You are now connected and ready to run with your MongoDB environment

Hardware that I used:
Raspberry Pi 4 (4gb)
https://amzn.to/3q551IO

CanaKit 3.5A Raspberry Pi 4 Power Supply (USB-C)
https://amzn.to/3fNTYPu

CanaKit Raspberry Pi 4 Micro HDMI Cable – 6 Feet
https://amzn.to/33u5hr9

Western Digital 500GB WD_Black SN750 NVMe
https://amzn.to/3nZ5pH4

Plugable USB C to M.2 NVMe Tool-free Enclosure
https://amzn.to/3lflV3L

ACCESSING .ONION SITES WITHOUT TOR

While TOR is the recommended way to access the dark web, everyone and anyone can still visit without the same level of anonymity. I certainly would suggest using TOR always, however if you need to get to any .onion site from a computer without tor, you can do so by following this:

Open an internet browser (Edge, Firefox, Chrome, etc)
Type in the .onion site (ex. https://protonirockerxow.onion/rc/)
After the .onion portion of the address, add .dog (ex
Press Enter
You are now viewing RISEUP’s website on the darkweb, using a regular browser


ARE YOU LEAKING PRIVATE INFORMATION, WHEN YOU VISIT WEBSITES?

How much information are you exposing on the internet? Check out the links below to find out more….

IP v4 Address Leaks
https://ipleak.net
https://nordvpn.com/what-is-my-ip/
https://browserleaks.com/ip

IP v6 Address Leaks
https://ipv6leak.com

DNS Leak
https://dnsleak.com/
https://www.dnsleaktest.com/

Browser Leaks
https://browserleaks.com/

Email Leaks
https://emailipleak.com/

Java Leaks
https://browserleaks.com/javascript

Canvas Fingerprinting
https://browserleaks.com/canvas

WebGL Testing
https://browserleaks.com/webgl

SSL Client Test
https://browserleaks.com/ssl

Geolocation Testing
https://browserleaks.com/geo

And SOOOOO Much More
https://browserleaks.com/#more

DISABLE LIGHTS ON GIGABYTE MOTHERBOARDS

Most of my systems are built on linux, and linux does not have the ability to install the RGB Fusion software. For me to disable the lights on the motherboard, I have to do that from the BIOS. Here are the steps I use on my Gigabyte Motherboards:

Boot the computer
Press DEL during the boot to enter the BIOS
Scroll over to the Peripherals tab
Select RGB Fusion
Click OFF
Save & Exit
Reboot and your lights are off

Thanks for reading!

UBUNTU 20.04, 1080 TI, ETH MINING IN 2021

This is a quick guide on how to use T-Rex on your Ubuntu 20.04 mining rig to allow your NVidia 1080 Ti cards to mine Ethereum in 2021.

On the rig
Open a Terminal
sudo bash
Enter your password
mkdir /tacticalware
cd /tacticalware

If you have Cuda 10 installed, download the following, otherwise find the one for your Cuda version
wget https://github.com/trexminer/T-Rex/releases/download/0.19.5/t-rex-0.19.5-linux-cuda10.0.tar.gz
Once it is downloaded
tar -zxvf t-rex-0.19.5-linux-cuda10.0.tar.gz
cp ETC-2miners.sh tacticalware-eth.sh
nano tacticalware-eth.sh

Now modify the contents of the file. I suggest replacing the mining site, and wallet address. My file looks like this:
./t-rex -a ethash –coin eth -o stratum+tcp://us1.ethermine.org:4444 -u 0xb6c1807520Fc60e39a29cD02a859c652B2910DB8 -w tacticalware

Note that there is a double dash before –coin and –fork. Sometimes your browser will show them as a double dash, sometimes it shows as a single long dash. they are double dashes

Save the file
Exit
Now you can launch it by running
./tacticalware-eth.sh

It will begin to mine. To monitor it you can do it through a web browser. Simply look for the address when the miner begins

The address will look something like this, and be displayed right when you begin mining
ubuntu t-rex


When you browse to that site you will see something that looks like this:

t-rex
That’t It. You are mining successfully. Thanks for reading

The hardware that I used in this guide:
Gigabyte AORUS GeForce GTX 1080 Ti (QTY 6):
https://amzn.to/2JqvXC8

Motherboard (QTY 1): 
https://amzn.to/2JqGJZ7

CPU (QTY 1): 
https://amzn.to/3qevp2X

Memory (QTY 1): 
https://amzn.to/2JqHn8Z

Hard Drive (QTY 1):  
https://amzn.to/3lic3X5

Risers (QTY 6):  
https://amzn.to/33rIgVE

Power Supplies (QTY 2):
https://amzn.to/3fTRpLR

Add2PSU (QTY 1):
https://amzn.to/39s4URY

Power Switch (QTY 1):  
https://amzn.to/3ljmNVk

INCREASE ETH / ETC MINING BY 50% IN 2021 USING OHGODANETHLARGEMENTPILL-R2

If you are still using an NVidia 1080 Ti card, and are trying to compete with the 2080s and 3090s these days, you need to up your hash game. There has been a tool around for the past 2 years to help with this. It is specifically designed for teh 1080 Ti cards, and has increased my hashes in the area of 50% per card. I wanted to preserve the software on github, so I created my own fork of it. The fork will not be updated, or worked on by me. It is just there so we all have a place to draw from in the long run.

For my setup, I am running Ubuntu 20.04.01, headless, and an Nvidia 1080ti. My miner is T-Rex with the setup from this guide:
https://tacticalware.com/ubuntu-20-04-etc-mining-after-epoch-390-november-2020/

Back to the guide

On your miner, open a terminal
sudo bash
cd /tacticalware
git clone https://github.com/tacticalware/ETHlargementPill.git
mv ETHlargementPill/ ohgod
cd ohgod
chmod +x OhGodAnETHlargementPill-r2
screen ./OhGodAnETHlargementPill-r2

You will see the following message:



Your system is now capable of running at 50% greater speed.

Since you used screen you can close this connection and it will still run.
To reconnect to this screen you can resume it by opening a terminal again
Typing sudo bash
Then screen -r

All that is left is to start up your mining software, configure it to mine ETH or ETC and start mining.

Enjoy the extra hashes!

The hardware that I used in this guide:
Gigabyte AORUS GeForce GTX 1080 Ti (QTY 6):
https://amzn.to/2JqvXC8

Motherboard (QTY 1): 
https://amzn.to/2JqGJZ7

CPU (QTY 1): 
https://amzn.to/3qevp2X

Memory (QTY 1): 
https://amzn.to/2JqHn8Z

Hard Drive (QTY 1):  
https://amzn.to/3lic3X5

Risers (QTY 6):  
https://amzn.to/33rIgVE

Power Supplies (QTY 2):
https://amzn.to/3fTRpLR

Add2PSU (QTY 1):
https://amzn.to/39s4URY

Power Switch (QTY 1):  
https://amzn.to/3ljmNVk




SETTING UP A CRON JOB FOR SCRAPING THROUGH NORDVPN

If any of you are like me, you find that your scrapers are limited from time to time by the number of requests you can make to a website within a certain period of time. To get around this, you can setup python scraping through nordvpn to automatically change of your IP addresses. There are other programs as well…Tor allows this for free. I personally use NORD, because I have had better performance and the cost is a few dollars per month not to have to deal with the headaches.

So I setup my cron job as follows
Every hour (9:00, 10:00, etc) it will connect to Nord
5 Mins past every hour (9:05, 10:05, etc) it will run my scraper
15 Mins past every hour (9:15, 10:15, etc) it will disconnect from Nord
30 Min past every hour (9:30, 10:30, etc) it will reconnect to Nord (this usually gives it enough time to get a different IP. If you log back in immediately you will attach to the same server. This fixes that.
35 Mins past every hour (9:35, 10:35, etc) it runs the scraper
45 Mins past every hour (9:45, 10:45, etc) it disconnects from Nord

To set this up I run the following

sudo bash

Enter Password

crontab -e

Select 1 (for nano)

Scroll to the bottom of the file and add the following:

0 * * * * /usr/bin/nordvpn connect >> /home/user/cron.log 2>&1
5 * * * * python3 /home/user/scraper.py >> /home/user/cron.log 2>&1
15 * * * * /usr/bin/nordvpn d >> /home/user/cron.log 2>&1
30 * * * * /usr/bin/nordvpn connect >> /home/user/cron.log 2>&1
35 * * * * python3 /home/user/scraper.py >> /home/user/cron.log 2>&1
45 * * * * /usr/bin/nordvpn d >> /home/user/cron.log 2>&1

Save the file, exit, and you are all set. Your scraper will run as directed

Ethereum Classic Mining with NVidia 1080Ti and Ubuntu 18.04.03

If you need help setting up the rig, you can view one of my other articles on building the rig, adding the cards, installing the drivers and so on. This guide will help you from the point that the rig is built and you have an Ethereum Classic wallet already available.

Open a terminal

mkdir /drivers && mkdir /drivers/claymore && mkdir claymore15

cd /drivers/claymore

wget

tar zxvf *

cd “C and hit the tab key to populate the rest of the name

Press Enter

mv ./* ../claymore15

cd ../

rm -R “C and hit the tab key

Press Enter

rm *z

cd claymore15

wget https://tacticalware.com/downloads/etc.txt

mv etc.txt etc.sh

chmod +x etc.sh

nano etc.sh

Change the wallet address to your wallet

Save the file and Exit

./etc.sh

And you off and mining!

The hardware that I used in this guide:
Gigabyte AORUS GeForce GTX 1080 Ti (QTY 6):
https://amzn.to/2JqvXC8

Motherboard (QTY 1): 
https://amzn.to/2JqGJZ7

CPU (QTY 1): 
https://amzn.to/3qevp2X

Memory (QTY 1): 
https://amzn.to/2JqHn8Z

Hard Drive (QTY 1):  
https://amzn.to/3lic3X5

Risers (QTY 6):  
https://amzn.to/33rIgVE

Power Supplies (QTY 2):
https://amzn.to/3fTRpLR

Add2PSU (QTY 1):
https://amzn.to/39s4URY

Power Switch (QTY 1):  
https://amzn.to/3ljmNVk