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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,
Used Solutions

Network Diagram Examples

Network diagram is a chart which represents nodes and connections between them in computer network or any telecommunication network, it is a visual depiction of network architecture, physical or logical network topology. There are used common icons for the Network diagrams design, such as icons of various network appliances, computer devices, routers, clouds, peripheral devices, digital devices, etc. Network diagrams can represent networks of different scales (LAN level, WAN level) and detailization. ConceptDraw DIAGRAM diagramming software enhanced with Computer Network Diagrams solution from Computer and Networks area includes huge collection of computer and network templates, design objects and stencils, and numerous quantity of Network diagram examples and samples, among them: Basic Computer Network Diagrams, Communication Network Diagram, Wireless Router Network Diagram, LAN Topology Diagram, Computer Network System Design Diagram, Mobile Satellite Communication Network, Web-based Network Diagram, Hybrid Network Diagram, and many others.
The vector stencils library "Cisco LAN" contains 23 symbols of local area network (LAN) devices and equipment for drawing Cisco LAN topology diagrams.
"Network topology describes the layout of interconnections between devices and network segments. At the Data Link Layer and Physical Layer, a wide variety of LAN topologies have been used, including ring, bus, mesh and star, but the most common LAN topology in use today is switched Ethernet. At the higher layers, the Internet Protocol (TCP/ IP) has become the standard, replacing NetBEUI, IPX/ SPX, AppleTalk and others.
Simple LANs generally consist of one or more switches. A switch can be connected to a router, cable modem, or ADSL modem for Internet access. Complex LANs are characterized by their use of redundant links with switches using the spanning tree protocol to prevent loops, their ability to manage differing traffic types via quality of service (QoS), and to segregate traffic with VLANs. A LAN can include a wide variety of network devices such as switches, firewalls, routers, load balancers, and sensors.
LANs can maintain connections with other LANs via leased lines, leased services, or the Internet using virtual private network technologies. Depending on how the connections are established and secured in a LAN, and the distance involved, a LAN may also be classified as a metropolitan area network (MAN) or a wide area network (WAN)." [Local area network. Wikipedia]
The symbols example "Cisco LAN - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Cisco Network Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ computer-networks-cisco
Sun workstation
Sun workstation, Sun workstation ,
Workstation
Workstation, workstation,
PC
PC, PC,
Macintosh
Macintosh, Macintosh,
Terminal
Terminal, terminal,
Mini VAX
Mini VAX, mini VAX, VAX, VSM, DECnet,
Printer
Printer, printer,
Laptop
Laptop, laptop,
File server
File server, file server, application server,
Monitor
Monitor, monitor,
Web cluster
Web cluster, Web cluster,
ATM fast gigabit etherswitch
ATM fast gigabit etherswitch, ATM fast gigabit etherswitch,
HP Mini
HP Mini, HP Mini,
Supercomputer
Supercomputer, supercomputer,
LAN2LAN
LAN2LAN, LAN2LAN,
LAN to LAN
LAN to LAN, LAN to LAN,
Web server
Web server, Web server, www server,
Web browser
Web browser, Web browser,
Repeater
Repeater, repeater,
PDA
PDA, PDA,
General appliance
General appliance, general appliance, intelligence engine 2100 series,
PC, blue
PC, blue, PC,
Mini VAX, blue
Mini VAX, blue, mini VAX, VAX, VSM, DECnet,
Used Solutions

network security tips, cyber security degrees, it security solutions, network security, network security devices, secure wireless network Network Security Diagrams

network security tips, cyber security degrees, it security solutions, network security, network security devices, secure wireless network
The Network Security Diagrams solution presents a large collection of predesigned cybersecurity vector stencils, cliparts, shapes, icons and connectors to help you succeed in designing professional and accurate Network Security Diagrams, Network Security Infographics to share knowledge about effective ways of networks protection with help of software and network security devices of different cyber security degrees, Network Plans for secure wireless network, Computer Security Diagrams to visually tell about amazing possibilities of IT security solutions. The samples and examples reflect the power of ConceptDraw DIAGRAM software in drawing Network Security Diagrams, give the representation about variety of existing types of attacks and threats, help to realize their seriousness and the methods to deal with them.
"At different scales diagrams may represent various levels of network granularity. At the LAN level, individual nodes may represent individual physical devices, such as hubs or file servers, while at the WAN level, individual nodes may represent entire cities. In addition, when the scope of a diagram crosses the common LAN/ MAN/ WAN boundaries, representative hypothetical devices may be depicted instead of showing all actually existing nodes. For example, if a network appliance is intended to be connected through the Internet to many end-user mobile devices, only a single such device may be depicted for the purposes of showing the general relationship between the appliance and any such device." [Computer network diagram. Wikipedia]
The physical LAN and WAN diagram template for the ConceptDraw PRO diagramming and vector drawing software is included in the Computer and Networks solution from the Computer and Networks area of ConceptDraw Solution Park.
Physical LAN and WAN diagram template
Physical LAN and WAN diagram template, workstation, router, modem, laptop computer, firewall, desktop PC, cloud,
Used Solutions

Network Gateway Router

Network Gateway Router
Special libraries of highly detailed, accurate shapes and computer graphics, servers, hubs, switches, printers, mainframes, face plates, routers etc.

Local area network (LAN). Computer and Network Examples

Local area network (LAN) diagram
Local Area Network (LAN) is a network which consists of computers and peripheral devices connected each other and to the local domain server, and covers a little territory or small number of buildings, such as home, school, laboratory, office, etc. LAN serves for few hundreds of users. It includes many cables and wires, and demands to design previously a Network diagram. All local area network devices can use the shared printers and disk storage. ConceptDraw DIAGRAM is a perfect network diagramming software with examples of LAN Diagrams, templates and predesigned vector objects. ConceptDraw DIAGRAM is the ideal choice for network engineers and network designers who need to draw fast and easy Local Area Network Diagrams, for IT specialists, developers and other IT professionals which need to visualize the communication schemes of LAN and visually document the LAN's physical structure and arrangement in houses, offices and other buildings. Ready-to-use vector objects from Computer Network Diagrams solution will help you design LAN diagrams in minutes.
How to Draw a Computer Network
How to Draw a Computer Network

Cisco WAN. Cisco icons, shapes, stencils and symbols

The ConceptDraw vector stencils library Cisco WAN contains equipment symbols for drawing the computer wide area network diagrams.

How to Draw a Computer Network Diagrams

How to Draw a Computer Network Diagrams
ConceptDraw DIAGRAM enhanced with popular Computer Network Diagrams solution from Computer and Networks area of ConceptDraw Solution Park is a powerful vector graphics and computer network diagramming software. It includes templates, samples and 7 libraries with predesigned vector objects of computer network devices, computer peripheral devices, network hardware, external digital devices, internet symbols, logical symbols, to help IT professionals easily visualize network equipment, to draft and present computer and network installations. It assists create easy and even instantly Computer Network Diagrams of various types and complexity, design Wireless Network Schemes, Network Topologies Diagrams, Computer Network System Designs. The list of five the most popular practical applications of Computer Network Diagrams solution includes documentation, presentations, training, workflows, education. A represented video How to Draw a Computer Network Diagram will help to realize effectively your computer network design process.

Wide area network (WAN) topology. Computer and Network Examples

Wide area network (WAN) is a type of telecommunication network, which is used to connect the computers on a wide geographical area. WANs are quite popular and widely used networks, the most known and bright example of WAN is the Internet. They offer exceedingly convenient and quick way of exchanging information and data between employees, suppliers, and clients that are geographically remote each other. WANs are often constructed from several smaller networks (LANs, MANs, etc.) and use effectively different packet switching and circuit switching technologies. ConceptDraw DIAGRAM is a powerful network diagramming software. Including Computer and Networks Area with extensive variety of solutions, ConceptDraw DIAGRAM offers a lot of ready-to-use predesigned vector stencils, wide set of examples and samples, helping the business and government entities effectively design professional-looking Wide area networks (WANs) and Wide area network topology diagrams of any complexity. Wide export capabilities of ConceptDraw DIAGRAM greatly extend your opportunities.