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@mikechau
mikechau / 00_README.md
Last active May 19, 2024 13:34
Logging Rails 4 to Syslog, formatted w/ Logstash

Logging Rails 4 to Syslog, formatted w/ Logstash

Getting Started

Steps to get Rails 4 saving its output to Syslog via Rsyslog. This assumes you are on CentOS, but should be pretty adaptable to any other distribution. Ruby 2.0+ is also required.

  1. Add the gems lograge and logstash-event to your Gemfile. Feel free to remove from production if you'd like to test it in development as well or something.
  2. Update production.rb with the lograge settings and set the logger to Syslog::Logger.
  3. Add the conf files to /etc/rsyslog.d/. /etc/rsyslog.conf should have $IncludeConfig /etc/rsyslog.d/*.conf enabled, so it will load any additional configs from /etc/rsyslog.conf.
@takeshixx
takeshixx / hb-test.py
Last active April 14, 2025 17:04
OpenSSL heartbeat PoC with STARTTLS support.
#!/usr/bin/env python2
"""
Author: takeshix <[email protected]>
PoC code for CVE-2014-0160. Original PoC by Jared Stafford ([email protected]).
Supportes all versions of TLS and has STARTTLS support for SMTP,POP3,IMAP,FTP and XMPP.
"""
import sys,struct,socket
from argparse import ArgumentParser
@osulyanov
osulyanov / config_initializers_pluralization.rb
Last active December 13, 2015 21:08
Rails start russian locales set
require "i18n/backend/pluralization"
I18n::Backend::Simple.send(:include, I18n::Backend::Pluralization)
@practicingruby
practicingruby / mrdi.md
Created December 19, 2012 22:29
Models, Roles, Decorators, and Interactions -- A modest proposal for a toned done version of DCI that isn't as janky as Concerns.

Models, Roles, Decorators, and Interactions

A modest alternative to DCI that might be worth further thought

One of the problems with advancing the discussion on DCI is that we lack a comparable alternative pattern that has the same goals, but favors a low ceremony approach. The closest thing we have to that is Rails concerns, but they are more like distant relatives of the DCI concepts rather than first cousins, and that makes comparisions between the two approaches not especially fruitful.

I am considering the idea of experimenting with my own paradigm that captures the intent and purity of DCI, but with the convenience of concerns. Please note that this is just the starting point of a conversation, it is NOT a promise of comercially available cold fusion or a cure for cancer. It's just a gist with an idea on it I'd like to hear your thoughts on.

What if we had a top-level topology that was split into Models, **Rol

@perplexes
perplexes / Rakefile.rb
Created June 4, 2012 16:00
How to have multithreaded workers in delayed_job 3.0.3 and Ruby 1.9.3 and Rails 3.2.2
task :workers => :environment do
module Delayed
class Worker
def name_with_thread_id(*a, &b)
name_without_thread_id(*a, &b) + " thread:#{Thread.current.object_id}"
end
alias_method_chain :name, :thread_id
end
end
Rails.logger.info "Running threaded worker env."
@jboner
jboner / latency.txt
Last active April 29, 2025 15:40
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@brentertz
brentertz / rvm2rbenv.txt
Created November 21, 2011 23:00
Switch from RVM to RBENV
## Prepare ###################################################################
# Remove RVM
rvm implode
# Ensure your homebrew is working properly and up to date
brew doctor
brew update
## Install ###################################################################