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.
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.
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.
NINE RELATED HOW TO's:
Wireless network topology — logical topology.
Wireless network topology shows how the computers connect each other when there is no physical connection. The computers communicate each using the wireless devices.
Picture: Wireless Network Topology
Computer and Networks solution provides examples, templates and vector stencils library with symbols of local area network (LAN) and wireless LAN (WLAN) equipment.
This example of computer network topology diagram shows home WLAN equipment and their connection to the Internet.
Picture: Network Topology Graphical Examples
Still doubting about the number of tables in your cafe? You should create a cafe floor plan that will answer all your questions and reflect all the details of your cafe interior. Get started in several minutes and unlock your creativity with dozens of ConceptDraw DIAGRAM templates and examples!
Dealing with interiors plans for HoReCa business, for example, developing a plan for cafe you will meet with both creative and architectural challenges. First of all , the layout of cafe should be beautiful and convenient for visitors. Being developed sagely a plan of your cafe leads to successful sales and good benefits. Designing a cafe floor plan includes various elements that can be picked out using ConceptDraw Cafe and Restaurant Floor Plan solution. The vector objects library supplied with Cafe and Restaurant solution provides a number of graphic objects for displaying different layouts and styles of catering establishments.
Picture: Cafe Floor Plan. Cafe Floor Plan Examples
The ConceptDraw vector stencils library Cisco IBM contains equipment symbols for drawing the computer network diagrams.
Picture: Cisco IBM. Cisco icons, shapes, stencils and symbols
ConceptDraw - Perfect Network Diagramming Software with abundant examples and templates. ConceptDraw Network Diagram is ideal for network engineers and network designers who need to draw Enterprise Private Network diagrams.
Picture: Network Diagram SoftwareEnterprise Private Network
The Wireless Network solution helps users to quickly transition from an idea to the implementation of a wireless computer network.
ConceptDraw DIAGRAM is well placed to provide experienced and comprehensive assistance in the workplace.
The vector stencils, examples, and templates included to solution is a strong toolset for network engineer.
Picture: Wireless Network Drawing
Creating CCTV system diagrams is quick and easy with ConceptDraw DIAGRAM diagramming software enhanced with Audio, Video, Media solution from ConceptDraw Solution Park. It contains library of vector cliparts of video and TV devices and different digital gadgets for drawing this kind of diagrams.
Picture: CCTV Surveillance System Diagram. CCTV Network Diagram Example
The Ishikawa diagram, Cause and Effect diagram, Fishbone diagram — all they are the names of one and the same visual method for working with causal connections. Originally invented by Kaoru Ishikawa to control the process quality, the Ishikawa diagram is well proven in other fields of management and personal scheduling, events planning, time management. It is a chart in the form of a fish, whose head is a problem, the fins are variants for its causes.
To design easily the Fishbone diagram, you can use a special ConceptDraw DIAGRAM vector graphic and diagramming software which contains the powerful tools for Fishbone diagram problem solving offered by Fishbone Diagrams solution for the Management area of ConceptDraw Solution Park.
Picture: Fishbone Diagram Problem Solving
It is so simple making the drawing process easier and faster. you just need to choose the right drawing software.
ConceptDraw Arrows10 Technology - This is so easy and fast to draw any type of diagram with any degree of complexity.
Picture: Simple & Fast Diagram Software