sl4m

BEGIN MESSAGE.
MowtrE0TEzcJUA2 gDzj5E16YhRa58G 2CBD7pDNbVK82XM zQ1G3gvScim5S7W
tHxW7Nczr74V67T nFcpLu8mCTNTCKq 6Xr2MZHgg6jbS63 r6WL9bSJklybxpq
0wqSz9tZFCQ6fqu AyuLKsFesbwkdVw RT93pR3ORF6M8GW BTy5T0w6ZPSF12r
l5J4qWp9uc3gukk svGmJ68YaWwk0ko bhRF.
END MESSAGE.

sl4m

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

sl4m

Top references

• http://stackoverflow.com/questions/5502231/how-to-become-a-saml-service-provider?rq=1

SAML2 Notes

---

SAML2.0 is an XML based portocol using security tokens containing assertions to pass information about a principal (ex. end user) between a SAML authority (Idp-Identity provider, for planet labs, it is MS ADFS 2012 R2), and a SAML consumer (SP-service provider, for example, plotly On-Prem side authentication). The standrad was ratified as an OASIS standard in 03/2005, which eventually may be replaced by Oauth2 based OpenID.

sl4m

Do wtf you want to.

sl4m

Keybase proof

I hereby claim:

• I am sl4m on github.
• I am skim (https://keybase.io/skim) on keybase.
• I have a public key whose fingerprint is EA0E 259C B4B4 A1F4 A959 E839 2574 4DCC 3A0C EF66

To claim this, I am signing this object:

sl4m

Keybase proof

I hereby claim:

• I am sl4m on github.
• I am skim (https://keybase.io/skim) on keybase.
• I have a public key whose fingerprint is 1969 1388 9423 B407 6EFD ED76 731A 9DF5 5732 A0C8

To claim this, I am signing this object:

sl4m

The reason why you might get certificate errors in Ruby 2.0 when talking HTTPS is because there isn't a default certificate bundle that OpenSSL (which was used when building Ruby) trusts.

Update: this problem is solved in edge versions of rbenv and RVM.

$ ruby -rnet/https -e "Net::HTTP.get URI('https://github.com')"
net/http.rb:917:in `connect': SSL_connect returned=1 errno=0 state=SSLv3
  read server certificate B: certificate verify failed (OpenSSL::SSL::SSLError)

You can work around the issue by installing a certificate bundle that you trust. I trust Mozilla and curl.

sl4m

# define a method to run rake tasks
def run_rake(task, options={}, &block)
  rake = fetch(:rake, 'rake')
  rails_env = fetch(:rails_env, 'production')

  command = "cd #{current_path} && #{rake} #{task} RAILS_ENV=#{rails_env}"
  run(command, options, &block)
end

sl4m

#
# Halftoneapp.com Sample Bluepill Configuration File
# Read more at: http://blog.halftoneapp.com
#

# Set paths
home_dir = "/home/railsapp"
rails_shared = "#{home_dir}/app/shared"
unicorn_path = "/path/to/unicorn_rails"

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# SSL self signed localhost for rails start to finish, no red warnings. 

# 1) Create your private key (any password will do, we remove it below)

$ openssl genrsa -des3 -out server.orig.key 2048


# 2) Remove the password

$ openssl rsa -in server.orig.key -out server.key