Archives for Software Dev - Page 15
Selling and withdrawing BTC without any commission
Coinbase will charge you for withdrawing your btc (or any crypto). That's an insane amount. Coinbase PRO will charge you ZERO percent commission. Simply set up your bank details within…
Quick ping and telnet tests
PING (does not equal internet connectivity) ping (cloudflare's dns) --> Should return something like Reply from : bytes=32 time=34ms TTL=55 ping (google's dns) Telnet (over port 80 = equals internet…
Network Latency vs. Throughput vs. Response Time
The most common complaint from a cloud customer might be, 'It works much faster inside my data center than on the cloud hosted version'. There are a few ways to…
VI quick commands
Some common vi commands sudo vi filename save and exit = shft wq exit = q! remove char on left - X
Primary domain change and wordpress?
If your wordpress pages and admin login stopped loading after a primary domain change (in your hosting control panel). you need to use the phpMyAdmin (under Databases, typically) tool to recover it.…
BYOIP and Bitly
The problem statement Bitly’s IP addresses are hard coded in DNS records (that map a data center IP to a bitly IP). When the data center VMs move to GCP…
How do you validate input variables in terraform?
How do you validate input variables in terraform? This is an experimental feature, which means you have to specify the following inside your (or wherever your variables are defined): terraform…
Rolling your own CA
How many intermediaries do you need? Best to set the path_len to 0 so that there is only one intermediary authority. As a CA, you will need to sign server…
Quantum Theory may provide a better solution to bitcoin’s double spend problem
What is the current solution to the double spend problem? The current solution to the double spend problem, takes up 1% of the world's entire energy. The mining is so…
The need for Quantum Field Theory – Causality Violation
Also read 'Combining Relativity and Quantum Mechanics - First Step' Use \braket{0|0}: \documentclass{standalone} \usepackage{braket} \begin{document} $\braket{0|0}$ \end{document}