Mutt is a text-based email client for Unix-like systems. It was originally written by Michael Elkins in 1995 and released under the GNU General Public License version 2 or any later version
The Mutt slogan is "All mail clients suck. This one just sucks less."
Internet Protocol Security (IPsec) is a protocol suite for secure Internet Protocol (IP) communications that works by authenticating and encrypting each IP packet of a communication session. IPsec includes protocols for establishing mutual authentication between agents at the beginning of the session and negotiation of cryptographic keys to be used during the session. IPsec can be used in protecting data flows between a pair of hosts (host-to-host), between a pair of security gateways (network-to-network), or between a security gateway and a host (network-to-host).[1] Internet Protocol security (IPsec) uses cryptographic security services to protect communications over Internet Protocol (IP) networks. IPsec supports network-level peer authentication, data origin authentication, data integrity, data confidentiality (encryption), and replay protection.
When two systems first connect using SSH they exchange their public keys with each other.
The target attribute specifies where the linked document will open when the link is clicked. The default is the current window. If target="_blank", the linked document will open in a new tab or (on older browsers) a new window.
The Independent Computing Architecture (ICA) protocol operates at the presentation layer of the OSI model, that is, the 6th layer. ICA is a Windows presentation services protocol from Citrix that provides the foundation for turning any client device-thin or fat-into the ultimate thin client. In the case of the ICA protocol, the 6th layer or the presentation layer is responsible for making sure the data can be presented to the application layer, in other words, the presentation layer prepares/formats the data making it ready to be passed up to the application layer.
