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@1kastner
1kastner / reflect.py
Last active August 19, 2025 21:37 — forked from huyng/reflect.py
A simple echo server to inspect http web requests
#!/usr/bin/env python
# Reflects the requests from HTTP methods GET, POST, PUT, and DELETE
# Written by Nathan Hamiel (2010)
from http.server import HTTPServer, BaseHTTPRequestHandler
from optparse import OptionParser
class RequestHandler(BaseHTTPRequestHandler):
def do_GET(self):
@mcastelino
mcastelino / iptables-cheatsheet.md
Last active June 25, 2025 14:45
iptables-cheatsheet

The netfilter hooks in the kernel and where they hook in the packet flow

The figure below calls out

  • The netfilter hooks
  • The order of table traversal
@bkaradzic
bkaradzic / orthodoxc++.md
Last active November 3, 2025 04:11
Orthodox C++

Orthodox C++

This article has been updated and is available here.

@nerdalert
nerdalert / Netfilter-IPTables-Diagrams.md
Last active December 4, 2025 18:31
Linux NetFilter, IP Tables and Conntrack Diagrams

Linux NetFilter, IP Tables and Conntrack Diagrams

IPTABLES TABLES and CHAINS

IPTables has the following 4 built-in tables.

1) Filter Table

Filter is default table for iptables. So, if you don’t define you own table, you’ll be using filter table. Iptables’s filter table has the following built-in chains.

@staltz
staltz / introrx.md
Last active December 1, 2025 11:31
The introduction to Reactive Programming you've been missing
@robert-king
robert-king / fenwick_tree.py
Created May 28, 2013 03:51
Python Binary Index Tree (Fenwick tree) with range updates.
__author__ = 'robert'
"""
Implementation inspired by Petr Mitrichev's blog post http://petr-mitrichev.blogspot.co.nz/2013/05/fenwick-tree-range-updates.html
and
Yoshiya Miyata's Quora answer http://qr.ae/pHhNN
"""
class Bit:
def __init__(self, n):