Distributed Networks

Welcome to Distributed Networks!

This website discusses Active Directory Administration, Unix Concepts and Shell Programming, Shell Scripting, Linux Network and System Administration, Redhat Linux and Network Security and Firewalls.
Active Directory Administration
Domain Forest Active Directory Logical Structure Windows Domain Controller  
Global Catalog Server Active Directory Physical Structure

Unix Concepts
Advanced Unix Concepts - Glossary
File Management Unix Pattern Matching - Quiz
Using Quotes Regular Expressions Unix Pattern Matching Quiz

Unix Shell Programming
Path variable in Unix Embedded Shell ForLoop C Shell Settings

Unix Shell Scripts
Unix Shell Scripts - Glossary
Interpreted versus Compiled - Programs Regular Expression - Quiz

DHCP - TCPIP - Glossary
TCP/IP Protocol Suite

Networking Windows
Installing Windows - Glossary
Windows Server Licensing Using Hardware Profiles

Internet Proxy Server
Internet Proxy Server - Glossary
Network Address Translation Conclusion Packet Filtering Disadvantages

Linux Network Administration
Linux Network Administration - Glossary
Address Resolution Protocol Address Resolution Protocol - Quiz
Check Status Port Mapper Process Iterative Concurrent Servers Iterative Concurrent-Servers - Quiz

Unix Network Admin
Unix Network Admin - Glossary
Examining DNS - Quiz nslookup Read Resource Records

Unix System Admin
Unix System Admin - Glossary
System Administration - Quiz

Network Security Firewalls
Network Security Firewalls - Glossary
TCP/IP Responsibilities Critical Security Elements Physical Authentication IP Datagrams
Transport Layer TCP/UDP

Configure Linux Components
Configure Linux Components - Glossary
Kernel Modules - Quiz Modular Monolithic Kernels Loading Kernel Modules Building and installing Kernel
Linux Dump Backup Command

Redhat Linux Admin
Red hat Linux Admin - Glossary
X-Windows System Configuring xdisplay Server - Quiz    
Gnome Display Manager Common Window Managers - Quiz    

Red hat System Admin
Red hat System Admin - Glossary
Sudo Linux Command Console Network Access - Quiz    
Process Accounting      
Internet Protocol Conclusion Domain Name System - Quiz    

Distributed sensor networks are a developing technology that promises to revolutionize our ability to sense environments, natural and social, over unprecedented spatial and temporal scales. Creating autonomous, collaborative, and robust computation across a large set of small computing devices.
Distributed Networks makes use of current models in the areas of:
  1. artificial intelligence,
  2. machine learning,
  3. control theory,
  4. decision theory, and
  5. distributed computing.
It also brings to the forefront current topics of research that connect the form and function of complex networks.

A distributed network is a type of computer network that is spread over different networks and provides a single data communication network, which can be managed jointly or separately by each network. Besides shared communication within the network, a distributed network often also distributes processing.
Distributed networks are part of a distributed computing architecture in which enterprise IT infrastructure resources are divided over a number of networks, processors and intermediary devices. A distributed network is powered by network management software, which manages and monitors data routing, combining and allocating network bandwidth, access control and other core networking processes.
1) Distributed networks and 2) processing work together to deliver specialized applications to different remote users. This means that an application may be hosted and executed from a single machine but accessed by many others. A client/server computing architecture is an example of a distributed network where the server is the producer of a resource and many interconnected remote users are the consumers who access the application from different networks.

Advantages of Distributed Network

  1. When a single database is lost, it does not affect all the data.
  2. User interaction is done with a local database, which results in higher access speeds, faster reporting and queries.
  3. Cheaper operation results from taking the advantage of off-peak rates of communications between Satellite and Master databases syncing on scheduled access.
  4. The Satellite databases come with local changes until the Master database acknowledges that it has upgraded these changes. This results in preventing accidental loss of local data amid transmission.
  5. A major improvement in Master database performance, since it does not need to deal with the Satellite database changes consistently. With this, you simply move your Satellite transactional load to a manageable schedule leave a lot of time for other operations.

Disadvantages of Distributed Network

  1. The distributed database architecture is more demanding in the form of design, administration and analysis.
  2. There are issues in accessing Satellite data from the Master database, which is often done according to the scheduled syncs. Indeed, there is often a manual override where syncing can be made to occur.
  3. Many complex routines need to be developed to ensure that data synchronization is working perfectly.
  4. Delays will exist between the satellite and master data footprints, where many reports generated by the satellite database are not current with the data of the master .