• IT Glossary
  • Contents
  • Glossary
    • A
    • B
    • C
    • D
    • E
    • F
    • H
    • I
    • L
    • M
    • N
    • O
    • P
    • Q
    • R
    • S
    • T
    • U
    • V
    • Z
  • Contributing
  • License
  • Contact

• ACL: Access Control Lists.
• AES: Advanced Encryption Standard.
• AH: Authentication Header.
• AoE: ATA over Ethernet.
• APT: Advanced Packaging Tool.
• APU: Accelerated Processing Unit.
• ARP: Address Resolution Protocol.
• ATA: AT Attachment.
• AWS: Amazon Web Services.

• BIOS: Basic Input/Output System.
• BGP: Border Gateway Protocol.
• BPDU: Bridge Protocol Data Unit.
• BTRFS: B-tree File System.

• CBAC: Context-Based Access Control.
• CDP: Cisco Discovery Protocol.
• CERT: Computer Emergency Response Team.
• CGNAT: Carrier Grade NAT.
• CIDR: Classless Interdomain Routing.
• CMOS: Complementary Metal-Oxide-Semiconductor.
• CN: Common Name.
• CoPP: Control Plane Policing.
• CPPr: Control Plane Protection.
• CPU: Central Processing Unit.
• CRL: Certificate Revocation List.
• CSS: Cascading Style Sheets.
• CVE: Common Vulnerabilities and Exposures.
• CWE: Common Weakness Enumeration.

• DAC: Discrectionary Access Control.
• DAS: Direct Attached Storage.
• DCIM: Data Center Infrastructure Management.
• DDoS: Distributed Denial of Service
• DES: Data Encryption Standard.
• DFIR: Digital Forensics and Incident Response.
• DHCP: Dynamic Host Configuration Protocol.
• DLP: Data Loss Prevention.
• DN: Distinguished Name.
• DNS: Domain Name System.
• DoS: Denial of Service
• DSCP: Differentiated Services Codepoint.
• DWDM: Dense Wavelength Division Multiplexing.

• EBR: Extended Boot Record.
• ECDSA: Elliptic Curve Digital Signature Algorithm.
• ECN: Explicit Congestion Notification.
• EEPROM: Electronically EPROM.
• EFI: Extensible Firmware Interface.
• EIGRP: Enhanced Interior Gateway Routing Protocol.
• EPROM: Erasable PROM.
• ERP: Enterprise Resource Planning.
• ESP:
  • Encapsulating Security Payload.
  • EFI System Partition.

• FAT: File Allocation Table.
• FIB: Forwarding Information Base.
• FPGA: Field Programmable Gate Arrays.
• FQDN: Fully Qualified Domain Name.
• FS: File System.
• FTP: File Transfer Protocol.

• GCC: GNU Compiler Collection.
• GIMP: GNU Image Manipulation Program.
• GNU: GNU's Not Unix.
• GPL: GNU General Public License.
• GPT: GUID Partition Table.
• GPU: Graphics Processing Unit.
• GRUB: GRand Unified Bootloader.
• GUID: Globally Unique IDentifier.

• HDD: Hard Disk Drive.
• HDL: Hardware Description Language.
• HKEY: Handle to Registry-Key.
• HSRP: Hot Standby Router Protocol.
• HTTP: Hyper-Text Transfer Protocol.

• IaaS: Infrastructure as a Service.
• IANA: Internet Assigned Numbers Authority.
• ICMP: Internet Control Message Protocol.
• IETF: Internet Engineering Task Force.
• IGMP: Internet Group Management Protocol.
• IHL: Internet Header Length.
• IOPS: Input/Output Operations Per Second.
• IoT: Internet of Things.
• IP: Internet Protocol.
• IPSec: IP Security.
• iSCSI: Internet Small Computer System Interface.
• ISP: Internet Service Provider.

• JBOD: Just a Bunch of Disks.
• JPEG: Joint Photographic Experts Group.

• LACP: Link Aggregation Control Protocol.
• LAG: Link Aggregation Group.
• LDAP: Lightweight Directory Access Protocol.
• LLDP: Link Layer Discovery Protocol.
• LUKS: Linux Unified Key Setup.
• LUN: Logical Unit Number.

• MAC:
  • Mandatory Access Control.
  • Media Access Control.
  • Message Authentication Code.
• MBR: Master Boot Record.
• MPLS: MultiProtocol Label Switching.
• MQTT: MQ Telemetry Transport.
• MRU: Most Recently Used.
• MTU: Maximum Transmission Unit.

• NAS: Network Attached Storage.
• NAT: Network Address Translation.
• NDP: Neighbor Discovery Protocol.
• NFS: Network File System.
• NPS: Network Policy Server.
• NPU: Neural Processing Unit.
• NSE: Nmap Scripting Engine.
• NT: New Technologies.
• NTFS: NT File System.
• NTP: Network Time Protocol.
• NVRAM: Non-Volatile RAM.

• OCSP: Online Certificate Status Protocol.
• OLE: Object Linking and Embedding.
• OSPF: Open Shortest Path First.

• PAM: Pluggable Authentication Modules.
• PATA: Parallel ATA.
• PKI: Public Key Infrastructure.
• PHB: Per Hop Behavior.
• PIM: Protocol-Independent Multicast.
• PKI: Public Key Infrastructure.
• PLC: Programmable Logic Controller.
• PNG: Portable Network Graphics.
• PPPoE: Point to Point Protocol over Ethernet.
• PROM: Programmable ROM.

• QoS: Quality of Service.

• RADIUS: Remote Authentication Dial-In User Service.
• RAID: Redundant Array of Inexpensive Disks.
• RAM: Random Access Memory.
• RDM: Remote Desktop Manager.
• RFC: Request For Comment.
• ROM: Read Only Memory.
• RSA: Rivest, Shamir & Adleman.
• RTMP: Real-Time Messasging Protocol.
• RTP: Real-time Transport Protocol.
• RTSP: Real-Time Streaming Protocol.

• SAM: Security Account Manager.
• SAN: Storage Area Network.
• SATA: Serial ATA.
• SCP: Secure Copy Protocol.
• SCSI: Small Computer System Interface.
• SCTP: Stream Control Transmission Protocol.
• SHA: Secure Hash Algorithm.
• SIP: Session Initiation Protocol.
• SLAAC: Stateless Address Autoconfiguration.
• SNMP: Simple Network Management Protocol.
• SQL: Structured Query Language.
• SSH: Secure Shell.
• SSL: Secure Sockets Layer.
• STP: Spanning Tree Protocol.
• SVM: Support-Vector Machines.

• TCN: Topology Change Notification.
• TCP: Transmission Control Protocol.
• TLS: Transport Layer Security.
• ToS: Type of Service.

• UAC: User Account Control.
• UDP: User Datagram Protocol.
• UEFI: Unified EFI.
• UFS: Unix File System.
• URI: Uniform Resource Identifier.
• URL: Uniform Resource Locator.
• UUID: Universally Unique Identifier.

• VDI: Virtual Disk Image.
• VHDL: VHSIC Hardware Description Language.
• VHSIC: Very High Speed Integrated Circuit Program.
• VLSI: Very Large Scale Integration.
• VLSM: Variable-Length Subnet Masking.
• VRRP: Virtual Router Redundancy Protocol.
• VT: Virtualization Technology.

• WSUS: Windows Server Update Services.
• WWW: World Wide Web.

• XFS: "X" File System.
• XMPP: eXtensible Messaging and Presence Protocol.

• YAML:
  • YAML Ain't Markup Language.
  • Yet Another Markup Language.

• ZBF: Zone-Based Firewall.
• ZFS: Zettabyte File System.*

Contributions are welcome! If you have improvements, bug fixes, or new terms to add, feel free to submit a pull request.

The content of this repository is licensed under the MIT License.

Feel free to get in touch with me!