CGA Fitting Reference. A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. Examples of CGA fittings would be CGA-580 for Non-flamable, Non-oxidizing gasses such as Nitrogen, Argon, or Helium. CGA-590 is used for compressed air and CGA-326 is used for Nitrous Oxide.
Google Authenticator is a mobile security application based on two-factor authentication (2FA) that helps to verify user identities before granting them access to websites and services.
1 Duo Push is an HOTP based Android/iOS app for 2 factor authentication which utilizes Out-of-band Push technology for vastly increased security and ease of use. 2  Google Authenticator open-source client for Android, iOS, and BlackBerry, and also PAM module for the server side.