yorickdowne

Overview

Syncing an Ethereum node is largely reliant on latency and IOPS, I/O Per Second, of the storage. Budget SSDs will struggle to an extent, and some won't be able to sync at all. IOPS can roughly be used as proxy of / predictor for latency. Measuring latency directly is arguably better.

This document aims to snapshot some known good and known bad models.

The drive lists are ordered by interface and then by capacity and alphabetically by vendor name, not by preference. The lists are not exhaustive at all. @mwpastore linked a filterable spreadsheet in comments that has a far greater variety of drives and their characteristics. Filter it by DRAM yes, NAND Type TLC, Form Factor M.2, and desired capacity.

For size, 4TB is a very conservative choice. The smaller 2TB drive should last an Ethereum full node until at least sometime 2026, with the [pre-merge history expiry](https://hackmd.io/@hBXHLw_9Qq2va4pRt

Xavier59

// exporting from a bs58 private key to an Uint8Array
// == from phantom private key to solana cli id.json key file
// npm install bs58 @solana/web3.js

const web3 = require("@solana/web3.js");
const bs58 = require('bs58');
let secretKey = bs58.decode("[base58 private key here]");
console.log(`[${web3.Keypair.fromSecretKey(secretKey).secretKey}]`);

// exporting back from Uint8Array to bs58 private key

n1snt

Oh my zsh.

Install ZSH.

sudo apt install zsh-autosuggestions zsh-syntax-highlighting zsh

Install Oh my ZSH.

yorickdowne

Note: PBSS in Geth >=1.13.0 removes the need to prune manually.

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Old content for reference

Overview

Geth (Go-Ethereum) as of July 2022 takes about 650 GiB of space on a fast/snap sync, and then grows by ~ 14 GiB/week with default cache, ~ 8 GiB/week with more cache.

usmansaleem

/*
 * Copyright 2020 ConsenSys AG.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the

mikroskeem

Mattermost OAuth2.0 endpoints

{mattermost_url} = your Mattermost instance url

• https://{mattermost_url}/oauth/authorize # auth_url
• https://{mattermost_url}/oauth/access_token # token_url
• https://{mattermost_url}/api/v4/users/me # so-called api_url

Notes

ixdy

Setting up ssh public key authentication on macOS using a YubiKey 4

I largely followed Florin's blog post, but have a few notes to add regarding issues I encountered:

Basic setup notes

1. I used a YubiKey 4, while the blog describes using a YubiKey NEO. I'm sure a YubiKey 5 would also work. I'm also running macOS 10.13.6.
2. I installed GPGTools as recommended. However, as I'll note later, it seems that gpg-agent only automatically starts when gpg is used; for ssh, you'll need to ensure it's running.
3. Before generating your keys, decide what key size you want to use. If you run the list command inside gpg --edit-card, look for the Key attributes line to see what is currently selected. On my YubiKey 4, it defaulted to 2048 bits for all keys:

Key attributes ...: rsa2048 rsa2048 rsa2048

maugelves

<?php

/**
 * This function returns a page permalink
 * for the current website language.
 *
 * @author  Mauricio Gelves <[email protected]>
 * @param   $page_slug      string          WordPress page slug
 * @return                  string|false    Page Permalink or false if the page is not found
 */

parmentf

Inspired by dannyfritz/commit-message-emoji

See also gitmoji.

Commit type	Emoji
Initial commit	🎉 :tada:
Version tag	🔖 :bookmark:
New feature	✨ :sparkles:
Bugfix	🐛 :bug:

ainsofs

# remove specific file from git cache
git rm --cached filename

# remove all files from git cache
git rm -r --cached .
git add .
git commit -m ".gitignore is now working"