

This isn't a guide about locking down homebrew so that it can't touch the rest of your system security-wise.
This guide doesn't fix the inherent security issues of a package management system that will literally yell at you if you try to do something about "huh, maybe it's not great my executables are writeable by my account without requiring authorization first".
But it absolutely is a guide about shoving it into its own little corner so that you can take it or leave it as you see fit, instead of just letting the project do what it likes like completely taking over permissions and ownership of a directory that might be in use by other software on your Mac and stomping all over their contents.
By following this guide you will:
sudo
to forcefully change permissions of some directory to be owned by your accountdefault['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam' | |
default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes' | |
default['sshd']['sshd_config']['PasswordAuthentication'] = 'no' |
The following are examples of the four types rate limiters discussed in the accompanying blog post. In the examples below I've used pseudocode-like Ruby, so if you're unfamiliar with Ruby you should be able to easily translate this approach to other languages. Complete examples in Ruby are also provided later in this gist.
In most cases you'll want all these examples to be classes, but I've used simple functions here to keep the code samples brief.
This uses a basic token bucket algorithm and relies on the fact that Redis scripts execute atomically. No other operations can run between fetching the count and writing the new count.
# In order for gpg to find gpg-agent, gpg-agent must be running, and there must be an env | |
# variable pointing GPG to the gpg-agent socket. This little script, which must be sourced | |
# in your shell's init script (ie, .bash_profile, .zshrc, whatever), will either start | |
# gpg-agent or set up the GPG_AGENT_INFO variable if it's already running. | |
# Add the following to your shell init to set up gpg-agent automatically for every shell | |
if [ -f ~/.gnupg/.gpg-agent-info ] && [ -n "$(pgrep gpg-agent)" ]; then | |
source ~/.gnupg/.gpg-agent-info | |
export GPG_AGENT_INFO | |
else |
package main | |
import ( | |
"fmt" | |
"io" | |
"io/ioutil" | |
"net" | |
"os" | |
"strings" |
package main | |
import ( | |
"bytes" | |
"encoding/gob" | |
"fmt" | |
) | |
type MyFace interface { | |
A() |
package main | |
import ( | |
"io" | |
"net/http" | |
"os/exec" | |
) | |
var ( | |
BUF_LEN = 1024 |