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IP Tables (iptables) Cheat Sheet

IPTables is the Firewall service that is available in a lot of different Linux Distributions. While modifiying it might seem daunting at first, this Cheat Sheet should be able to show you just how easy it is to use and how quickly you can be on your way mucking around with your firewall.

Resources

The following list is a great set of documentation for iptables. I used them to compile this documentation.

How-To Geek: The Beginner’s Guide to iptables, the Linux Firewall: https://www.howtogeek.com/177621/the-beginners-guide-to-iptables-the-linux-firewall/
IPTables Essentials: Common Firewall Rules and COmmands https://www.digitalocean.com/community/tutorials/iptables-essentials-common-firewall-rules-and-commands

Список IT стажировок и вакансий без опыта в Москве и России

Яндекс
- Программы стажировок
  - Разработка (Python, C++, Java, Go, Kotlin, Scala, C, Flutter, фронтенд, DevOps, Android, iOS)
  - Анализ данных
  - Информационная безопасность
  - Тестирование
  - Менеджмент в IT
Бизнес

Twitter Mention Blocklist Policy

Public-safe version. Redacted. No handles, no links, no callouts.

Block immediately

Strongly derogatory replies
Crypto spam, token shills, wallet/contract junk
Clear AI slop or reply-bot behavior
Repetitive low-context spam

@todos: the Urgency Easiness Gracefulness scheme

In my @todo's, I (intend to) use the following scheme:

@todo (Urgency Easiness Gracefulness)

For example: @todo (3 5 7)

The larger each number, the more of Urgency, Easiness and Gracefulness this @todo has!

Claude Code Terminal Pro — Windows Port

Windows PowerShell port of claude-code-terminal-pro by rathi-prashant.

Gruvbox Dark status line for Claude Code showing model name, context usage progress bar, token count, working directory, and git branch.

✦ Opus 4 | [■■■■■■■■■□□□□□□□□□□□] 49% | ↯ 98k/200k | ◆ my-project | ⎋ main

	nmcli con add type wifi ifname wlp3s0 con-name eduroam ssid eduroam
	nmcli con edit id eduroam
	nmcli> set ipv4.method auto
	nmcli> set 802-1x.eap peap
	nmcli> set 802-1x.phase2-auth mschapv2
	nmcli> set 802-1x.identity myusername
	nmcli> set 802-1x.password mypassword
	nmcli> set wifi-sec.key-mgmt wpa-eap
	nmcli> save
	nmcli> activate

	server:
	do-not-query-localhost: no
	domain-insecure: "0.168.192.in-addr.arpa"
	domain-insecure: "example.local"
	local-zone: "168.192.in-addr.arpa." nodefault
	private-address: 10.0.0.0/8
	private-address: 169.254.0.0/16
	private-address: 172.16.0.0/12
	private-address: 192.168.0.0/16
	private-address: fd00::/8

	return {
	{
	"bjarneo/aether.nvim",
	branch = "v2",
	name = "aether",
	priority = 1000,
	opts = {
	transparent = false,
	colors = {
	-- Background colors

	git rm -r --cached some-directory
	git commit -m 'Remove the now ignored directory "some-directory"'
	git push origin master