denji

Network Monitoring Tools

• Monit
• Ganglia
• Munin
• Cacti
• Nagios
• Zabbix
• Observium
• Zenoss
• Collectd

ngocphamm

Backend Architectures

Twitter

ror, scala, jetty, erlang, thrift, mongrel, comet server, my-sql, memchached, varnish, kestrel(mq), starling, gizzard, cassandra, hadoop, vertica, munin, nagios, awstats

• Scaling Twitter: Making Twitter 10000 Percent Faster
• Scaling Twitter
• Blaine Cook on Scaling Twitter - YouTube

JosefJezek

How to Cisco

Password Recovery Procedure

ROMmon

confreg 0x2142 (at the rommon 1> prompt)
reset

M1ke

#!/bin/sh
df -H | grep -vE '^Filesystem|tmpfs|cdrom' | awk '{ print $5 " " $1 }' | while read output;
do
  echo $output
  used=$(echo $output | awk '{ print $1}' | cut -d'%' -f1  )
  partition=$(echo $output | awk '{ print $2 }' )
  if [ $usep -ge 80 ]; then
    echo "The partition \"$partition\" on $(hostname) has used $used% at $(date)" | mail -s "Disk space alert: $used% used" [email protected]
  fi
done

fduran

# www.fduran.com
# Create Java KeyStore from SSL certificate for domain example.com

# Change format from cert.crt PEM (----BEGIN CERTIFICATE----- ...  -----END CERTIFICATE-----) to DER
openssl x509 -in cert.crt -inform PEM -out cert.der -outform DER

# create KeyStore cert.jks for your domain ("alias" in keytool, "common name" or CN in openssl req)
keytool -import -trustcacerts -alias example.com -file cert.der -keystore cert.jks

jirutka

###############################################################################
# The MIT License
#
# Copyright 2012-2014 Jakub Jirutka <[email protected]>.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is

galulex

Developer libs

mysql, rmagic, curl, git, vim, sqlite, nodejs nokogiri...

sudo apt-get install libxslt1-dev libxml2-dev build-essential patch libsqlite3-dev libcurl4-openssl-dev curl git git-gui vim-gtk exuberant-ctags nodejs rar

Ruby

sudo apt-add-repository ppa:brightbox/ruby-ng

sudo apt-get update

endolith

# Greatest common divisor of 1 or more numbers.
from functools import reduce


def gcd(*numbers):
    """
    Return the greatest common divisor of 1 or more integers

    Examples
    --------