rgs

Falsehoods programmers believe about prices

1. You can store a price in a floating point variable.
2. All currencies are subdivided in 1/100th units (like US dollar/cents, euro/eurocents etc.).
3. All currencies are subdivided in decimal units (like dinar/fils)
4. All currencies currently in circulation are subdivided in decimal units. (to exclude shillings, pennies) (counter-example: MGA)
5. All currencies are subdivided. (counter-examples: KRW, COP, JPY... Or subdivisions can be deprecated.)
6. Prices can't have more precision than the smaller sub-unit of the currency. (e.g. gas prices)
7. For any currency you can have a price of 1. (ZWL)
8. Every country has its own currency. (EUR is the best example, but also Franc CFA, etc.)

denji

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

cyrusboadway

#!/bin/bash

### Google Domains provides an API to update a DNS "Syntheitc record". This script
### updates a record with the script-runner's public IP, as resolved using a DNS
### lookup.
###
### Google Dynamic DNS: https://support.google.com/domains/answer/6147083
### Synthetic Records: https://support.google.com/domains/answer/6069273

USERNAME=""

subfuzion

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

vemacs

# systemd unit file
# place in /etc/systemd/system
# systemctl enable gotty.service
# systemctl start gotty.service

[Unit]
Description=Gotty Web Terminal
After=network.target

[Service]

orangeblock

#!/bin/bash

# parse endpoint (only works for POST)
read request
url="${request#POST }"
url="${url% HTTP/*}"

# change this!!!
secret="top-secret"

shijij

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name yourdomain

    ssl_certificate           /etc/ssl/localcerts/yourdomain.crt;
    ssl_certificate_key       /etc/ssl/localcerts/yourdomain.key;
    ssl_ecdh_curve prime256v1;

    ssl_session_cache  builtin:1000  shared:SSL:10m;

FinnWoelm

# Full instructions: http://manpages.ubuntu.com/manpages/bionic/en/man8/mmcli.8.html
# Examples: http://manpages.ubuntu.com/manpages/bionic/en/man8/mmcli.8.html#examples
# Supported modems: https://www.freedesktop.org/wiki/Software/ModemManager/SupportedDevices/

# Get list of connected modems.
mmcli --list-modems
# Output:
# Found 1 modems:
#	  /org/freedesktop/ModemManager1/Modem/1 [huawei] E3531
# The number at the end of the path is the modem index.

ramuta

# Author: Matej Ramuta
# How to use this script:
# 1. You need to have a wordlist file, something like rockyou.txt
# 2. Make sure you have Python 3 installed. Try this with "python --version" command. Also check "python3 --version"
# 3. Run the script like this: python sudo_brute_force.py passwords.txt

import os
import sys

if len(sys.argv) == 1:

spalladino

Falsehoods that Ethereum programmers believe

I recently stumbled upon Falsehoods programmers believe about time zones, which got a good laugh out of me. It reminded me of other great lists of falsehoods, such as about names or time, and made me look for an equivalent for Ethereum. Having found none, here is my humble contribution to this set.

About Gas

Calling estimateGas will return the gas required by my transaction

Calling estimateGas will return the gas that your transaction would require if it were mined now. The current state of the chain may be very different to the state in which your tx will get mined. So when your tx i