Talking about networking the field of it is very vast. Security is very important for every technology hence for this also. Network security comprises of policies taken by the network administrator for preventing and monitoring the unauthorized access. It may access and misuse the network resources for their personal benefits by modifying the stolen data. It is mainly controlled by the network administrator. Hence Network Monitoring is very crucial for smooth running of the business operations because a failure in any network can cause downtimes.
For accessing information and other programs, an ID and password are provided to the users. Network security is very much concerned for large as well as small-medium business organizations covering private as well as government organizations. The authentication done can depend on many factors such as only an ID & password; secondly the user may have to use another physical thing like any card or any cellular device (mobile). One more factor of authentication is the user has to use fingerprint scan in a biometrical scanner.
After authentication, a firewall applies policies to what services should be allowed for access by the users. It is effective but it can stop working to scan the unexpected malwares like computer worms and Trojans which can enter the network. For this many anti-virus software can be used which help in detecting and removing of such programs. Proper security management is very necessary for different situations.
The small scale organization or a home user may require basic security solutions but well maintained and technically advanced software are needed for large business organizations.
1=> Small Scale Business
A small business requires a firewall or a unified threat management system. Basic antivirus software for Windows users is required. If wireless connection is used the password should be robust. MAC address filtering should be enabled. The IP addresses of the devices should be static. ICMP ping should be disabled on the router. Passwords should be used for all accounts.
2=> Medium Business
A strong firewall is required and a unified threat management system can be used too as well as strong antivirus software should be used. Strong passwords must be used for authentication and robust password for wireless connection. As an option, a network monitor can be used. Some data backup policies should also be run in case of a hardware failure. The above basic requirements are also implied for a large business only some physical security measures are also added.