File Transfer Protocol (FTP) - Port 21 is the control port while port 20 is used to transfer files., Secure Shell (SSH) - Designed to transmit data through a remote connection., SSH File Transfer Protocol - A completely separate protocol from FTP (it is not compliant with FTP servers) that uses SSH to encrypt file transfers., TACACS+ - Cisco proprietary protocol used for authentication, authorization, and accounting (AAA) services, Domain Name System (DNS) - Used to associate IP addresses with domain names, Dynamic Host Configuration Protocol (DHCP) - This network management protocol is used to assign local IP addresses to devices on a network. It is used to create multiple private IP addresses from one public IPv4 address., Hypertext Transfer Protocol (HTTP) - Protocol used for websites and most internet traffic., Kerberos - Network authentication protocol that allows for communication over a non-secure network., Post Office Protocol (POP) - E-mail protocol that allows e-mail clients to communicate with e-mail servers. It provides only one-way communication., Internet Message Access Protocol (IMAP) - E-mail protocol used by e-mail clients to communicate with e-mail servers. Provides two way communication., Simple Network Management Protocol (SNMP) - Protocol used to monitor and manage network devices on IP networks., Lightweight Directory Access Protocol (LDAP) - Used to manage and communicate with directories., Hypertext Transfer Protocol Secure (HTTPS) - Secure version of HTTP that used TLS for encryption., Lightweight Directory Access Protocol Secure (LDAPS) - Secure version of LDAP that uses TLS for encryption., File Transfer Protocol Secure (FTPS) - It uses TLS for encryption. It can run on ports 20/21 but is sometimes allocated to ports 989/990, Internet Message Access Protocol Secure (IMAPS) - Secure version of IMAP that uses TLS for encryption., Post Office Protocol 3 Secure (POP3S) - Secure version of POP that uses TLS for encryption., Remote Authentication Dial-In User Service (RADIUS) - Used to provide AAA for network services, Diameter - Developed as an upgrade to Radius, Secure Real Time Protocol (SRTP) - Replaced RTP and is a protocol used to stream audio and video communication using UDP., Layer 2 Tunneling Protocol (L2TP) - Used to create point to point connections, like VPNs over a UDP connection. Needs IPSec for encryption. Designed as an extension to PPTP. Operates at the data link layer but encapsulates packets at the session layer., Transmission Control Protocol (TCP) - One of two main protocols of the Internet Protocol (IP) suite used to transmit data over an IP network. It provides error checking to ensure packets are not lost in transit., User Datagram Protocol (UDP) - The second main protocol in the IP suite that transmits datagrams in a best effort method., Point to Point Tunneling Protocol (PPTP) - Based on PPP. Deprecated protocol for VPNs., Remote Desktop Protocol - Windows proprietary protocol that provides a remote connection between two computers., Simple Mail Transfer Protocol (SMTP) - Internet mail protocol used to send outgoing mail from email clients to mail servers., Network Time Protocol - Low latency protocol used to synchronize timekeeping across a network., Server Message Block - Windows proprietary protocol built on NetBIOS. Allows users to remotely access servers., Internet Protocol Security (IPSec) using ISAKMP - Internet Protocol security achieved through the use of ISAKMP – Internet Security Association and Key Management Protocol, Simple Mail Transfer Protocol Secure (SMTPS) - The secure version of SMTP. Uses TLS for encryption.,

CompTIA SY0-701 Security+ Ports and Protocols Keywords and Definitions

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