ICANN: Internet Corporation for Assigned Names and Numbers
ICMP: Internet Control Message Protocol
ICS: Industrial Control System
ICT: Information and Communication Technology
IDA: Integrated Data and Voice Access
IDF: Intermediate Distribution Frame
IDS: Intrusion Detection System
IDSL: ISDN Digital Subscriber Line
IEEE: Institute of Electrical and Electronics Engineers
IETF: Internet Engineering Task Force
IGMP: Internet Group Management Protocol
IGP: Interior Gateway Protocol
IGRP: Interior Gateway Routing Protocol
IMAP: Internet Message Access Protocol
IMEI: International Mobile Equipment Identity
IMSI: International Mobile Subscriber Identity
IoT: Internet of Things
IP: Internet Protocol
IPAM: IP Address Management
IPC: Inter-Process Communication
IPCP: IP Control Protocol
IPsec: IP Security
IPv4: Internet Protocol version 4
IPv6: Internet Protocol version 6
IS-IS: Intermediate System to Intermediate System
ISDN: Integrated Services Digital Network
ISM: Industrial, Scientific, and Medical
ISO: International Organization for Standardization
ISP: Internet Service Provider
IS-IS: Intermediate System to Intermediate System
ITU-T: International Telecommunication Union Telecommunication Standardization Sector
IVR: Interactive Voice Response
JBOD: Just a Bunch Of Disks
JRE: Java Runtime Environment
Kbps: Kilobits per second
KDC: Key Distribution Center
KVM: Keyboard, Video, Mouse
L2TP: Layer 2 Tunneling Protocol
LACP: Link Aggregation Control Protocol
LAN: Local Area Network
LAPB: Link Access Procedure, Balanced
LAT: Local Area Transport
LCP: Link Control Protocol
LDAP: Lightweight Directory Access Protocol
LDP: Label Distribution Protocol
LLDP: Link Layer Discovery Protocol
LISP: Locator/ID Separation Protocol
LNS: L2TP Network Server
LPD: Line Printer Daemon
LSP: Label Switched Path
MAC: Media Access Control
MACsec: Media Access Control Security
MAN: Metropolitan Area Network
Mbps: Megabits per second
MD5: Message Digest Algorithm 5
MIB: Management Information Base
MLS: Multi-Layer Switching
MMORPG: Massively Multiplayer Online Role-Playing Game
MPLS: Multiprotocol Label Switching
MSN: Microsoft Network
MSS: Maximum Segment Size
MTA: Mail Transfer Agent
MTP: Media Transfer Protocol
MTRJ: Mechanical Transfer Registered Jack
NAC: Network Access Control
NAS: Network-Attached Storage
NAT: Network Address Translation
NC: Network Computer
NCSA: National Center for Supercomputing Applications
NFS: Network File System
NGFW: Next-Generation Firewall
NHRP: Next Hop Resolution Protocol
NMS: Network Management System
NOC: Network Operations Center
NOS: Network Operating System
NTP: Network Time Protocol
OBGP: Outbound Border Gateway Protocol
OCSP: Online Certificate Status Protocol
OFDM: Orthogonal Frequency-Division Multiplexing
OID: Object Identifier
OS: Operating System
OSI: Open Systems Interconnection
PAP: Password Authentication Protocol
PAT: Port Address Translation
PCAP: Packet Capture
PCI: Peripheral Component Interconnect
PDLC: Packet Data Link Control
PDU: Protocol Data Unit
PIM: Protocol Independent Multicast
PIN: Personal Identification Number
PKI: Public Key Infrastructure
PON: Passive Optical Network
POP: Point of Presence
PPP: Point-to-Point Protocol
PPPoE: Point-to-Point Protocol over Ethernet
PPTP: Point-to-Point Tunneling Protocol
PSK: Pre-Shared Key
PSTN: Public Switched Telephone Network
PVST: Per-VLAN Spanning Tree
PVST+: Per-VLAN Spanning Tree Plus
QoS: Quality of Service
RAID: Redundant Array of Independent Disks
RARP: Reverse Address Resolution Protocol
RC4: Rivest Cipher 4
RDP: Remote Desktop Protocol
RFID: Radio Frequency Identification
RIP: Routing Information Protocol
RSA: Rivest–Shamir–Adleman
RSTP: Rapid Spanning Tree Protocol
RTBH: Remote Triggered Black Hole
RTCP: Real-Time Control Protocol
RTP: Real-Time Transport Protocol
SA: Security Association
SAML: Security Assertion Markup Language
SAP: Service Advertising Protocol
SAS: Serial Attached SCSI
SBC: Session Border Controller
SBI: Server-Based Infrastructure
SCCP: Skinny Client Control Protocol
SCSI: Small Computer System Interface
SDLC: Synchronous Data Link Control
SDN: Software-Defined Networking
SDP: Session Description Protocol
SFTP: Secure File Transfer Protocol
SIP: Session Initiation Protocol
SLA: Service Level Agreement
SLAAC: Stateless Address Autoconfiguration
SLARP: Serial Line Address Resolution Protocol
SLIP: Serial Line Internet Protocol
SMC: System Management Controller
SMB: Server Message Block
SMTP: Simple Mail Transfer Protocol
SNA: Systems Network Architecture
SNAT: Static Network Address Translation
SNMP: Simple Network Management Protocol
SOC: Security Operations Center
SPF: Shortest Path First
SSH: Secure Shell
SSL: Secure Sockets Layer
SSO: Single Sign-On
STP: Spanning Tree Protocol
STT: Stateless Transport Tunneling
SYSLOG: System Logging Protocol
TACACS: Terminal Access Controller Access Control System
TCP: Transmission Control Protocol
TCP/IP: Transmission Control Protocol/Internet Protocol
TFTP: Trivial File Transfer Protocol
TLS: Transport Layer Security
TOS: Type of Service
TPC: Three-Party Conference
TRILL: Transparent Interconnection of Lots of Links
TTL: Time To Live
TTS: Text-to-Speech
TUN/TAP: Network Tunneling Device Drivers
UART: Universal Asynchronous Receiver-Transmitter
UDP: User Datagram Protocol
UDLD: UniDirectional Link Detection
UEFI: Unified Extensible Firmware Interface
UPnP: Universal Plug and Play
URI: Uniform Resource Identifier
URL: Uniform Resource Locator
USB: Universal Serial Bus
UTC: Coordinated Universal Time
VLAN: Virtual Local Area Network
VM: Virtual Machine
VLSM: Variable Length Subnet Mask
VoIP: Voice over Internet Protocol
VPN: Virtual Private Network
VRF: Virtual Routing and Forwarding
VRRP: Virtual Router Redundancy Protocol
VTP: VLAN Trunking Protocol
VTP: VLAN Trunking Protocol
VTP: VLAN Trunking Protocol
VXLAN: Virtual Extensible LAN
WAN: Wide Area Network
WEP: Wired Equivalent Privacy
Wildcard Mask: A wildcard mask is a 32-bit pattern used in conjunction with a network address to define the range of IP addresses in a network. It is often used in access control lists (ACLs) to specify which IP addresses are permitted or denied access to a network resource.