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This computer security diagram example was designed on the base of the Wikimedia Commons file: Firewall.png.
[commons.wikimedia.org/ wiki/ File:Firewall.png]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
"In computing, a firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules. A firewall typically establishes a barrier between a trusted, secure internal network and another outside network, such as the Internet, that is assumed to not be secure or trusted. Firewalls are often categorized as either network firewalls or host-based firewalls. Network firewalls are a software appliance running on general purpose hardware or hardware-based firewall computer appliances that filter traffic between two or more networks. Host-based firewalls provide a layer of software on one host that controls network traffic in and out of that single machine. Firewall appliances may also offer other functionality to the internal network they protect such as acting as a DHCP or VPN server for that network." [Firewall (computing). Wikipedia]
The cybersecurity diagram example "Firewall between LAN and WAN" was created using the ConceprDraw PRO software extended with the Network Security Diagrams solution from the Computer and Neworks area of ConceptDraw Solution Park.
Computer security diagram
Computer security diagram, monitor, firewall, elbow connector, without arrows, elbow connector, display, direct connector, without arrows,

Local area network (LAN). Computer and Network Examples

A local area network (LAN) is a devices network that connect with each other in the scope of a home, school, laboratory, or office. Usually, a LAN comprise computers and peripheral devices linked to a local domain server. All network appliances can use a shared printers or disk storage. A local area network serve for many hundreds of users. Typically, LAN includes many wires and cables that demand a previously designed network diagram. They are used by IT professionals to visually document the LANs physical structure and arrangement.
ConceptDraw - Perfect Network Diagramming Software with examples of LAN Diagrams. ConceptDraw Network Diagram is ideal for network engineers and network designers who need to draw Local Area Network diagrams.
How to Draw a Computer Network
How to Draw a Computer Network

Personal area (PAN) networks. Computer and Network Examples

A Personal area network (PAN) is a computer network that is used for data transmission between different personal devices (computers, telephones, digital devices, etc.) and for connecting to the higher level network and Internet. PANs can be wired with computer buses (USB and FireWire). A wireless personal area network (WPAN) can be made using the network technologies such as Bluetooth, IrDa, UWB, Z-Wave, ZigBee, Body Area Network. A personal area network handles the interconnection of IT devices at the surrounding of a single user. Generally, PAN contains from following such appliances: cordless mice and keyboards, cordless phone, Bluetooth handsets.
This example was created in ConceptDraw DIAGRAM using the Computer and Networks Area of ConceptDraw Solution Park and shows the Personal area network.

business process flow diagram, business process optimization, business process workflow diagram Business Process Workflow Diagrams

business process flow diagram, business process optimization, business process workflow diagram
The Business Process Workflow Diagrams solution enhances the ConceptDraw DIAGRAM functionality with predesigned examples, samples and a numerous collection of predesigned vector objects of workflow chart elements, icons, arrows, connectors, and varied wor

Using Remote Networking Diagrams

Remote Networking - We explain the method most people use to connect to the Internet.

Audio Visual Connectors Types

The Audio & Video Connectors solution contains a set of pre-designed objects, libraries, templates, and samples; allowing quick and easy diagramming of various configurations of audio and video devices.

ConceptDraw DIAGRAM Network Diagram Tool

With ConceptDraw DIAGRAM you can diagram a network or create a computer network diagram using specialized libraries of network components such as computers, hubs, smart connectors etc. that simulate network design topologies and devices, network architectures (all these shapes are parts of network diagram tool ConceptDraw DIAGRAM).
Create Network Topology Diagram
Create Network Topology Diagram
The vector stencils library "Logical symbols" contains 49 logical symbols for drawing logical network topology diagrams.
"Logical topology, or signal topology, is the arrangement of devices on a computer network and how they communicate with one another. How devices are connected to the network through the actual cables that transmit data, or the physical structure of the network, is called the physical topology. Physical topology defines how the systems are physically connected. It represents the physical layout of the devices on the network. The logical topology defines how the systems communicate across the physical topologies.
Logical topologies are bound to network protocols and describe how data is moved across the network. ... EXAMPLE : twisted pair Ethernet is a logical bus topology in a physical star topology layout. While IBM's token ring is a logical ring topology, it is physically set up in star topology." [Logical topology. Wikipedia]
The icons example "Logical symbols - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Computer and Networks solution from the Computer and Networks area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ computer-and-networks
Coaxial Line Tag
Coaxial  Line Tag, coaxial line tag,
Fiber Optic Line Tag
Fiber Optic Line Tag, fiber optic line tag,
Twisted Pair Line Tag
Twisted Pair Line Tag, twisted pair line tag,
SC2200 Signaling Controller
SC2200 Signaling Controller, SC2200 Signaling Controller,
Bridge
Bridge, bridge,
Network Management Appliance
Network Management Appliance, network management appliance,
Access Server (Communications Server)
Access Server (Communications Server), access server, communications server,
Terminal Server
Terminal Server, terminal server,
Web Browser
Web Browser , Web browser ,
Security Management, Cisco
Security Management, Cisco, security management, Cisco,
Lock and Key
Lock and Key, lock and key,
Lock
Lock, lock,
Key
Key, key,
Relational Database
Relational Database, relational database,
Host
Host, host,
CSU/DSU
CSU/DSU , CSU, DSU ,
WAN
WAN, WAN,
University
University , university ,
Government building
Government building , government building ,
Home Office
Home Office, home office,
Telecommuter House PC
Telecommuter House PC, telecommuter house PC,
Medium Building, Regular
Medium Building, Regular, building,
Headquarters, Subdued
Headquarters, Subdued, headquarters,
House, Regular
House, Regular, house,
Small Business
Small Business , small business ,
Network Connector
Network Connector,
Dynamic Connector
Dynamic Connector,
Line Connector
Line Connector,
Line-curve Connector
Line-curve Connector,
Bus
Bus, bus,
FDDI Ring
FDDI Ring, FDDI ring,
Peer-to-peer
Peer-to-peer, peer-to-peer,
Token-ring
Token-ring, Token-ring,
Star
Star, star,
Comm-link
Comm-link, Comm-Link,
Curved Bus
Curved Bus, curved bus,
Ethernet
Ethernet, Ethernet,
Cloud
Cloud,
Speaker
Speaker, speaker,
Microphone
Microphone , microphone ,
Router
Router, router,
ATM Router
ATM Router, ATM router,
ISDN Switch
ISDN Switch , ISDN switch ,
ATM Switch
ATM Switch , ATM switch ,
ATM/FastGB Etherswitch
ATM/FastGB Etherswitch, ATM GB Etherswitch, Fast GB Etherswitch,
Workgroup Switch
Workgroup Switch, workgroup switch,
Small Hub
Small Hub, small hub,
100BaseT Hub
100BaseT Hub , 100BaseT hub,
CDDI-FDDI
CDDI-FDDI , CDDI-FDDI ,

wireless communications, WLAN, wireless solution, wireless networking Wireless Networks

wireless communications, WLAN, wireless solution, wireless networking
The Wireless Networks Solution extends ConceptDraw DIAGRAM software with professional diagramming tools, set of wireless network diagram templates and samples, comprehensive library of wireless communications and WLAN objects to help network engineers and designers efficiently design and create Wireless network diagrams that illustrate wireless networks of any speed and complexity, and help to identify all required equipment for construction and updating wireless networks, and calculating their costs.
The vector stencils library "Logical symbols" contains 49 logical symbols for drawing logical network topology diagrams.
"Logical topology, or signal topology, is the arrangement of devices on a computer network and how they communicate with one another. How devices are connected to the network through the actual cables that transmit data, or the physical structure of the network, is called the physical topology. Physical topology defines how the systems are physically connected. It represents the physical layout of the devices on the network. The logical topology defines how the systems communicate across the physical topologies.
Logical topologies are bound to network protocols and describe how data is moved across the network. ... EXAMPLE : twisted pair Ethernet is a logical bus topology in a physical star topology layout. While IBM's token ring is a logical ring topology, it is physically set up in star topology." [Logical topology. Wikipedia]
The icons example "Logical symbols - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Computer and Networks solution from the Computer and Networks area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ computer-and-networks
Coaxial Line Tag
Coaxial  Line Tag, coaxial line tag,
Fiber Optic Line Tag
Fiber Optic Line Tag, fiber optic line tag,
Twisted Pair Line Tag
Twisted Pair Line Tag, twisted pair line tag,
SC2200 Signaling Controller
SC2200 Signaling Controller, SC2200 Signaling Controller,
Bridge
Bridge, bridge,
Network Management Appliance
Network Management Appliance, network management appliance,
Access Server (Communications Server)
Access Server (Communications Server), access server, communications server,
Terminal Server
Terminal Server, terminal server,
Web Browser
Web Browser , Web browser ,
Security Management, Cisco
Security Management, Cisco, security management, Cisco,
Lock and Key
Lock and Key, lock and key,
Lock
Lock, lock,
Key
Key, key,
Relational Database
Relational Database, relational database,
Host
Host, host,
CSU/DSU
CSU/DSU , CSU, DSU ,
WAN
WAN, WAN,
University
University , university ,
Government building
Government building , government building ,
Home Office
Home Office, home office,
Telecommuter House PC
Telecommuter House PC, telecommuter house PC,
Medium Building, Regular
Medium Building, Regular, building,
Headquarters, Subdued
Headquarters, Subdued, headquarters,
House, Regular
House, Regular, house,
Small Business
Small Business , small business ,
Network Connector
Network Connector,
Dynamic Connector
Dynamic Connector,
Line Connector
Line Connector,
Line-curve Connector
Line-curve Connector,
Bus
Bus, bus,
FDDI Ring
FDDI Ring, FDDI ring,
Peer-to-peer
Peer-to-peer, peer-to-peer,
Token-ring
Token-ring, Token-ring,
Star
Star, star,
Comm-link
Comm-link, Comm-Link,
Curved Bus
Curved Bus, curved bus,
Ethernet
Ethernet, Ethernet,
Cloud
Cloud,
Speaker
Speaker, speaker,
Microphone
Microphone , microphone ,
Router
Router, router,
ATM Router
ATM Router, ATM router,
ISDN Switch
ISDN Switch , ISDN switch ,
ATM Switch
ATM Switch , ATM switch ,
ATM/FastGB Etherswitch
ATM/FastGB Etherswitch, ATM GB Etherswitch, Fast GB Etherswitch,
Workgroup Switch
Workgroup Switch, workgroup switch,
Small Hub
Small Hub, small hub,
100BaseT Hub
100BaseT Hub , 100BaseT hub,
CDDI-FDDI
CDDI-FDDI , CDDI-FDDI ,