Aaron Kaufman aaronky

These links no longer work. Springer have pulled the free plug.

Graduate texts in mathematics

duplicates = multiple editions

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

Operational PGP

This is a guide on how to email securely.

There are many guides on how to install and use PGP to encrypt email. This is not one of them. This is a guide on secure communication using email with PGP encryption. If you are not familiar with PGP, please read another guide first. If you are comfortable using PGP to encrypt and decrypt emails, this guide will raise your security to the next level.

This configuration is not maintained anymore. You should think twice before using it, Breaking change and security issue will likely eventually happens as any abandonned project.

This guide provides detailed steps for setting up DNS records, configuring a DNS tunneling server and client, and setting up a browser for secure proxy connections.

Why iodine?

Bypassing Network Restrictions: iodine excels in environments with strict network restrictions. It utilizes DNS queries, which are typically allowed through firewalls, to tunnel data where traditional methods like VPNs might be blocked.
Efficient for Limited Bandwidth: Ideal for situations with bandwidth limitations, iodine requires less bandwidth compared to standard VPNs, making it a practical choice for networks with restricted data flow.
Customizability and Open Source: As an open-source tool, iodine offers extensive customization options. Users with specific technical needs or those interested in a hands-on approach to network tunneling can tailor iodine to their requirements.

Prerequisites

a simple git branching model (written in 2013)

This is a very simple git workflow. It (and variants) is in use by many people. I settled on it after using it very effectively at Athena. GitHub does something similar; Zach Holman mentioned it in this talk.

Update: Woah, thanks for all the attention. Didn't expect this simple rant to get popular.

	#
	set -g default-terminal screen-256color
	set -g status-bg blue
	set -g status-fg white
	set -g status-right '#(sysctl vm.loadavg)'
	setw -g window-status-current-attr underscore
	bind r source-file ~/.tmux.conf


	# a shortlist of potentially useful irssi scripts
	# this is not an exhaustive list

	# this shortlist excludes certain types of irssi scripts:
	# excludes scripts which are to do with operators / moderation / kick / banning / etc
	# excludes scripts which send a local desktop notification e.g. to growl, iPhone, etc
	# excludes scripts which shorten urls

	#~/.gnupg/gpg.conf
	# Hide your PGP version & other PGP version metadata with these two config lines.

	# This line hides the "Version: GnuPG vX.XX.XX" line
	no-emit-version

	# This line hides the "Comment: XXXXX" lines
	no-comments
	# NOTE if you are using Thunderbird+Enigmail you probably need to set this again in
	# the Enigmail->Preference settings:

	# ░░░░░░ ░░░░░░ ░░ ░░ ░░░░░░ ░░░░░░ ░░ ░░░░░░░░ ░░░░░░ ░░ ░░ ░░░░░ ░░░░░░
	# ███╗ ██╗███████╗██╗ ██╗███████╗██████╗ ███████╗██╗ ██╗████████╗███████╗██████╗
	# ████╗ ██║██╔════╝██║ ██║██╔════╝██╔══██╗██╔════╝██║ ██║╚══██╔══╝██╔════╝██╔══██╗
	# ██╔██╗ ██║█████╗ ██║ █╗ ██║███████╗██████╔╝█████╗ ██║ ██║ ██║ █████╗ ██████╔╝
	# ██║╚██╗██║██╔══╝ ██║███╗██║╚════██║██╔══██╗██╔══╝ ██║ ██║ ██║ ██╔══╝ ██╔══██╗
	# ██║ ╚████║███████╗╚███╔███╔╝███████║██████╔╝███████╗╚██████╔╝ ██║ ███████╗██║ ██║
	# ╚═╝ ╚═══╝╚══════╝ ╚══╝╚══╝ ╚══════╝╚═════╝ ╚══════╝ ╚═════╝ ╚═╝ ╚══════╝╚═╝ ╚═╝
	# ░░░░░░ ░░░░░░ ░░ ░░ ░░░░░░ ░░░░░░ ░░ ░░░░░░░░ ░░░░░░ ░░ ░░ ░░░░░ ░░░░░░
	# ▓▓▓▓▓▓▓▓▓▓
	# ░▓ author ▓ cirrus <[email protected]>

	---
	# run this with ansible-playbook -i ansible_hosts bootstrap.yml -k -c paramiko
	- hosts: jails_host
	gather_facts: false
	remote_user: root
	tasks:
	- name: install pkgng
	raw: "pkg_info \| grep -v 'pkg-' > /dev/null ; if $? pkg_add -r pkg; rehash ; pkg2ng; echo 'WITH_PKGNG=yes' >> /etc/make.conf; echo 'packagesite: http://pkgbeta.freebsd.org/freebsd%3A9%3Ax86%3A64/latest' >> /usr/local/etc/pkg.conf; pkg update ; pkg upgrade -y"
	- name: install python27
	raw: "pkg install -y python27"