| const buffer = require('buffer'); | |
| const crypto = require('crypto'); | |
| // Demo implementation of using `aes-256-gcm` with node.js's `crypto` lib. | |
| const aes256gcm = (key) => { | |
| const ALGO = 'aes-256-gcm'; | |
| // encrypt returns base64-encoded ciphertext | |
| const encrypt = (str) => { | |
| // The `iv` for a given key must be globally unique to prevent |
So you want to be an Ethereum developer! Congrats, much treasure awaits you. Developing Ethereum dapps benefits from having a well-crafted development environment. This can often be daunting to beginners, so I'm giving you my favorite dev environment to help get you started.
Once your code fortress is constructed, you'll be able to
Following instructions from the excellent https://www.rinkeby.io/
A full node lets you access all state. There is a light node (state-on-demand) and wallet-only (no state) instructions as well,
| /* | |
| Go-Language implementation of an SSH Reverse Tunnel, the equivalent of below SSH command: | |
| ssh -R 8080:127.0.0.1:8080 operatore@146.148.22.123 | |
| which opens a tunnel between the two endpoints and permit to exchange information on this direction: | |
| server:8080 -----> client:8080 |
None of what is written below is particularly original, however, I was unable to find a method documented on the internet at the time of writing that successfully created a kickstart driven CentOS 7 USB installer.
My interest was in doing this manually as I require this USB (image) to be created from a script. Therefore, I did not look into using ISO to USB applications - in addition, these typically do not allow custom kickstart files to be used.
Much of the process described below was found on the CentOS Wiki page on Installing from USB key, and from the Softpanorama page on the same subject. I thoroughly recommend reading all of the latter as it highlights the shortcomings/dangers associated with the steps below.
| 23.21.150.121:3478 | |
| iphone-stun.strato-iphone.de:3478 | |
| numb.viagenie.ca:3478 | |
| s1.taraba.net:3478 | |
| s2.taraba.net:3478 | |
| stun.12connect.com:3478 | |
| stun.12voip.com:3478 | |
| stun.1und1.de:3478 | |
| stun.2talk.co.nz:3478 | |
| stun.2talk.com:3478 |
| package main | |
| import ( | |
| "log" | |
| "bufio" | |
| "time" | |
| "os" | |
| "fmt" | |
| "io" | |
| "net" |
This has moved to https://github.com/bitcoin/bitcoin/blob/master/doc/reduce-memory.md
| #!/bin/bash | |
| # shell script to create a simple mongodb replica set (tested on osx) | |
| set -e | |
| red=$(tput setaf 1) | |
| green=$(tput setaf 2) | |
| yellow=$(tput setaf 3) | |
| default=$(tput sgr0) |
| alias gdbnew='/usr/local/Cellar/gdb/7.6/bin/gdb' |
