TELNET – It is a protocol which allows a user on a remote client machine, called the Telnet client, to access the resources of another machine, the Telnet server, in order to access a command-line interface. There is a drawback with it that no encryption technique is available with it and everything is sent in clear text which includes words.
SSH – It is also similar to a Telnet where a secure session is built, It is employed for doing things like running programs on remote systems, logging into systems, and moving files from one system to another. And it does all of this while maintaining an encrypted connection.
FTP – It transfer files between two machines, used by applications. As a program, it’s employed by users to perform file tasks by hand. FTP also allows for access to both directories and files and can accomplish certain types of directory operations, such as relocating into different ones. There is a drawback with FTP that it can’t be used to execute remote files as a program.
TFTP – It is the version of FTP and is fast and eazy to use. It has no directory-browsing abilities i.e. it can only send and receive files.
HTTP – It is use to manage communication between web browsers and web servers and opens the right resource when you click a link.
HTTPS – It is sometimes known as Secure Hypertext Transfer Protocol. It uses Secure Socket Layer (SSL) which is also referred as SHTTP. It is the secure version of HTTP that shields you with shole security tools for keeping transactions between web browser and a server secure.
NTP – Network type Protocol that works by synchronizing devices to ensure that all computer systems are on the agree time.
DNS – Domain Name Server which converts the name of the sites to a IP address, ex- If you type http://www.google.com which will be converted into 126.96.36.199
DHCP – Dynamic Host Configuration Protocol that assigns to a host. It works well in small to very large network environment.
APIPA – Automatic Private IP Addressing – WS OS provide a feature called APIPA where clients can automatically self-configure an IP address and subnet mask.
TCP – Transmission Control Protocol it takes large blocks of information from an application and breaks them into segments.
UDP – User Datagram Protocol which basically scale down economy model of TCP and transports information that does’nt require reliable delivery.
ICMP – Internet Control Message Protocol – it is a management protocol and messaging service provider for IP working on network layer as per OSI model.