polyrand

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

polyrand

import asyncio
import smtplib
import ssl
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from socket import gaierror
import base64
import datetime as dt
import imghdr
import json

polyrand

Create SSH tunnels using systemd units

Table of contents

• Overview
• Setup the SSH agent systemd unit
• Setup the SSH-tunnel systemd unit
• Create tunnels using systemd services
• Examples
• Create a tunnel to a web server on a machine that's only accessible by SSH

polyrand

README

Create a template service file at /etc/systemd/system/secure-tunnel@.service. The template parameter will correspond to the name of target host:

[Unit]
Description=Setup a secure tunnel to %I
After=network.target

polyrand

polyrand

DISCLAIMER

This License is currently being reviewed and may be updated any time. The changes made to this License have immediate effect after its update.

TL;DR

You can use the Drawings for whatever you want except redistributing or reselling them in any of their forms, separated or packaged.

You can use them for unlimited End Products, either paid or free, for unlimited End Clients, as long as the End Product is not directly related or in competition with the Drawings and/or excalidraw.art.

polyrand

License

Ricardo Ander-Egg (the “Licensor”) grants you an on-going, non-exclusive license to use the Drawings (the “License”).

An individual license grants permission to the Licensee to access and use the Drawings (the “Individual License”).

A team license grants permission to all Employees and Contractors of the Licensee to access and use the Drawings (the “Team License”).

You can:

polyrand

polyrand

Save nbread somewhere in your $PATH and give it permissions with chmod +x nbread

Add the following alias to your shell:

alias rgnb="rg --pre nbread --pre-glob '*.ipynb' --type-add 'ipynb:*.ipynb' -tipynb"

Now you can run rgnb sqlite to search for "sqlite" in all your *.ipynb files.

polyrand

import binascii
import sqlite3
import collections
import math
import re

RE_SPLIT = re.compile(r'[^A-Za-z0-9_]+')

def tokenize(s):
    # this is super basic and should be replaced with a real tokenizer