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@nerdalert
nerdalert / Netfilter-IPTables-Diagrams.md
Last active June 16, 2025 09:36
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.

@areina
areina / emacs-email-setup.md
Created October 12, 2012 15:00
Manage your email in emacs with mu4e

Manage your gmail account in emacs with mu4e

There're a lot of combinations to manage your email with emacs, but this works for me. I've a backup and I can manage my daily email.

The stack:

  • emacs
  • offlineimap
  • mu
  • mu4e