un33k

FILE SPACING:

 # double space a file
 sed G

 # double space a file which already has blank lines in it. Output file
 # should contain no more than one blank line between lines of text.
 sed '/^$/d;G'

bradland

# This is a short collection of tools that are useful for managing your
# known_hosts file. In this case, I'm using the '-f' flag to specify the
# global known_hosts file because I'll be adding many deploy users on this
# system. Simply omit the -f flag to operate on ~/.ssh/known_hosts

# Add entry for host
ssh-keyscan -H github.com >> /etc/ssh/ssh_known_hosts

# Scan known hosts
ssh-keygen -f /etc/ssh/ssh_known_hosts -F github.com

louiszuckerman

Logstash Configuration...

input {
  file {
    format => "plain"
    path => "/var/log/apache2/*error.log"
    type => "apacheerror"
  }
}
filter {

mbbx6spp

Best UNIX Shell tools

These are a list of usages of shell commands I can't live without on UNIX-based systems.

Install

Mac OS X

Using Homebrew (yes, I am opinionated) you can install the following tools with the following packages:

bradland

#!/bin/bash
 
#########################################################################
#                                                                       #
#                                                                       #
#                       NATO String converter                           #
#                                                                       #
#               Description: converts string (first parameter given)    #
#               to NATO phonetics-alphabet                              #
#                                                                       #

fduran

# www.fduran.com
# installing mod_security http://www.modsecurity.org (Debian-based distro)

# apachectl -M
apache2: Could not reliably determine the server's fully qualified domain name, using boxmetric.com for ServerName
Loaded Modules:
 core_module (static)
 log_config_module (static)
 logio_module (static)
 mpm_prefork_module (static)

louiszuckerman

Logstash CloudWatch Output Plugin

Code: https://github.com/semiosis/logstash/blob/master/lib/logstash/outputs/cloudwatch.rb
Jira Issue: https://logstash.jira.com/browse/LOGSTASH-461

Architecture overview...

The CloudWatch output plugin simply aggregates events & calls the CloudWatch API to push data.  All event routing & processing is done using conventional Logstash configuration.

To send events to CloudWatch you'll need to add at least one field to the event which is the name of the CloudWatch metric the event belongs to.  This is done in Logstash using the add_field option of inputs & filters like so:

dknecht

Summary: Security module for the Apache HTTP Server
Name: mod_security 
Version: 2.5.9
Release: 1.jason.1
License: GPLv2
URL: http://www.modsecurity.org/
Group: System Environment/Daemons
Source: http://www.modsecurity.org/download/modsecurity-apache_%{version}.tar.gz
Source1: mod_security.conf
Source2: modsecurity_localrules.conf

juanje

input {
  tcp {
    type => "linux-syslog"
    port => 3333
  }

  file {
    type => "linux-syslog"
    path => [ "/var/log/auth.log" ]
  }

niranjan-nagaraju

TCPReplay/TCPRewrite/TCPPrep/TCPDump Cheatsheet

tcprewrite

Rewrite IP/Mac addresses, -C optionally to fix checksums

1. tcpprep, first:C2S, Second S2C, Generate cache file