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DIAGRAM 14

Network Security

The Internet is a giant computer network which connects computers all over the world. Now the Internet is widely used in all spheres of the life and activity, it is first of all a way to exchange information, without which today is difficult to imagine the life. The Internet is integral part of human society and business. But the serious question for network engineers, designers, lawmakers and enforcers is the need for protect the Internet networks from the Internet crimes, hacking and attacks.

There are many kinds of dangers and ways of attacks, but there are also quite a number of hardware, software and physical methods of protection against them. Such devices as routers, IDS and Firewalls are examples of hardware devices used for network security. Anti-virus software and VPNs are some of the software network security tools.

One of the most effective and easily implemented ways to protect the networks is the use of Firewalls. The Firewall is a first line of defense against the external threats to networks, it can be either software based or hardware based. The main task of firewall is to allow the authorized access to a computer while blocking unauthorized access. The Network layer firewalls makes decisions based on the source address, destination address and ports in individual IP packets. Modern network layer firewalls maintain internal information about states of the connections passing through them.

Depending of the service kind and security you need for your network, you can choose the type of firewall. The most useful types of firewalls are: Screened host firewall, Screened subnet firewall, Packet filer firewall, Stateful inspection firewall, Hybrid firewall, Proxy server firewall, Application level (gateway) firewall.

ConceptDraw DIAGRAM is a powerful diagramming and vector drawing software that allows quick and easy draw the diagrams of your safe networks.

Network Security *

Example 1. Network Security

Computer and Networks Area provides the Network Security Diagrams solution that contains the libraries with a great number of predesigned vector stencils, a set of professional looking examples that you can change for your needs.

All numerous predesigned Network Security Diagram samples are available from ConceptDraw STORE. Use of ready sample is the most simply and quick way of drawing diagrams, you can start with ready sample and change it according to your taste and needs.

Network Security Diagram - Access Control and Encryption

Example 2. Network Security Diagram - Access Control and Encryption

The samples you see on this page were created in ConceptDraw DIAGRAM using the tools of Network Security Diagrams Solution for ConceptDraw DIAGRAM software. They show protection networks with Firewalls and other network security devices. An experienced user spent 5-10 minutes creating each of these samples.

Use the Network Security Diagrams Solution for ConceptDraw DIAGRAM to create your own Network Security Diagrams quick, easy and effective.

All source documents are vector graphic documents. They are available for reviewing, modifying, or converting to a variety of formats (PDF file, MS PowerPoint, MS Visio, and many other graphic formats) from the ConceptDraw STORE. The Network Security Diagrams Solution is available for all ConceptDraw DIAGRAM users.





TEN RELATED HOW TO's:

Diagram of a Basic Computer Network. Computer Network Diagram Example →

What is a computer network? This is a set of devices and systems that are connected to each other (logically or physically) and communicate with each other. This could include servers, computers, phones, routers, and so on. The size of this network can reach the size of the Internet, and can consist of only two devices connected by a cable. This sample shows the connection scheme of the home WLAN equipment to the Internet.Diagram of a Basic Computer Network
Picture: Diagram of a Basic Computer Network. Computer Network Diagram Example
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Flowchart Components →

The ConceptDraw Flowchart component includes a set of samples and templates. This geathered as flowchart maker toolbox which focused on drawing flowcharts of any industry standards.Flowchart Components
Picture: Flowchart Components
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Hybrid Network Topology →

Every corporate network is unique, though there are guidelines and best practices in developing networks. As it is quite difficult to implement a pure topology within a company, using a hybrid network topology is considered a better solution. As a rule, such network assembles advantages and features of source topologies. This diagram is an example of the Hybrid network. This type of network topology means a conjunction of other network topologies. Such as star-bus, ring-mesh topologies, etc. It should be obviously diverse networks. The final computer network inherits both advantages and disadvantages of its ingredients. Using the ConceptDraw Computer and Networks solution including vector graphic libraries and templates one can develop professional custom network diagrams of any topology and complexity.Hybrid Network Topology *
Picture: Hybrid Network Topology
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Picture: Telecommunication networks. Computer and Network Examples
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Network Gateway Router →

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Picture: Network Gateway Router
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Picture: Recruitment
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Flow Chart Symbols →

If you need to describe some process, diagramming is a perfect tool for almost any imaginable purpose. The set of the most commonly used flow charts symbols is quite wide and includes symbols for operations, processes, data inputs and outputs. You can see the full list of all the symbols used for flowcharting in Flowcharts solution from Diagrams area in ConceptDraw Solution Park. A flow chart is often used for visual representation of a sequential process flow. The flowchart approach to any process is to divide it into some sequential actions. What makes a flow chart so popular and clear to make out is the set of standard flowchart symbols that has the same reading independently from processes described with their applying. The current drawing represents the vector library containing the pack of standard flowchart symbols. This library is supplied with ConceptDraw Flowcharts solution.Flow Chart Symbols *
Picture: Flow Chart Symbols
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Picture: Active Directory Diagram
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