Question

Q) Then Discuss the implementation of different system level security solutions (eg: firewall, IDS, IPS password ...etc) in your loT architecture (Hint: select any five security solution then for each one discuss its purpose in securing an lot network and discuss the deployment of each one, support your answer with appropriate lot topology showing your selected security solution)

Answer 1

Computer systems face a number of security threats. Learn about different approaches to system security, including firewalls, encoding , passwords and biometrics.
Security Threats
Computer systems face a number of security threats. One of the essential threats is data loss, which suggests that parts of a database can not be retrieved. This could be the results of physical damage to the data-storage medium (like fire or water damage), human error or hardware failures.

Another security threat is unauthorized access. Many computer systems contain sensitive information, and it might be very harmful if it were to fall within the wrong hands. Imagine someone has your Social Security numbers, date of birth, address and bank details. Getting unauthorized access to computer systems is understood as hacking. Computer hackers have developed sophisticated methods to get data from databases, which they'll use for private gain or to harm others.

Viruses and harmful programs comes under the third category of security threats.A bug may be a computer virus which will cause damage to a computer's software, hardware or data. It is mentioned as an epidemic because it's the potential to duplicate itself and conceal inside other computer files.

System Security
Protection of data and property from theft, corruption and other sorts of damage, while allowing the knowledge and property to stay accessible and productive is the objective of system security. System security includes the development and implementation of security countermeasures. There are variety of various approaches to computing system security, including the utilization of a firewall, data encryption, passwords and biometrics.

Firewall
One widely used strategy to enhance system security is to use a firewall. A firewall consists of software and hardware found out between an indoor network and therefore the Internet. A network manager sets up the principles for the firewall to filter unwanted intrusions. These rules are set up in such a way that unauthorized access is much more difficult.

A supervisor can decide, for instance , that only users within the firewall can access particular files, or that those outside the firewall have limited capabilities to switch the files. You can also found out a firewall for your own computer, and on many computer systems, this is often built into the OS .

Encryption
One way to stay files and data safe is to use encryption. This is often used when data is transferred over the web , where it could potentially be seen by others. Encryption is that the process of encoding messages in order that it can only be viewed by authorized individuals. An encryption key is used to make the message unreadable, and a secret decryption key is used to decipher the message.

Encryption is widely utilized in systems like e-commerce and Internet banking, where the databases contain very sensitive information. If you've got made purchases online employing a mastercard , it's very likely that you've got used encryption to try to to this.

Passwords
The most widely used method to prevent unauthorized access is to use passwords. A password may be a string of characters wont to authenticate a user to access a system. The password needs to be kept secret and is only intended for the specific user. In computer systems, each password is related to a selected username since many individuals could also be accessing an equivalent system.

To keep computer systems secure good passwords are essential. Unfortunately, many computer users don't use very secure passwords, like the name of a loved one or important dates - things that might be relatively easy to guess by a hacker. One of the foremost widely used passwords - you guessed it - 'password.' Definitely not an honest password to use.

Longer is best - an extended password is far harder to interrupt . The minimum length must be 8 characters, but many security experts have started suggesting 12 characters or more for extra safety.
Avoid the apparent - A string like '0123456789' is just too easy for a hacker, then is 'LaDyGaGa'. All words from the dictionary should also be avoided.
Mix it up - Use a mixture of upper and lowercase and add special characters to form a password much stronger. A password like 'hybq4' isn't very strong, but 'Hy%Bq&4
Remembering strong passwords can be challenging. One tip from security experts is to return up with a sentence that's easy to recollect and to show that into a password by using abbreviations and substitutions. for instance , 'My favorite hobby is to play tennis' could become something like Mf#Hi$2Pt%.

Regular users of computer systems have numerous user accounts. Just consider what percentage accounts you employ on a daily basis: email, social networking sites, financial institutions, online shopping sites then on. a daily user of varied computer systems and internet sites will have dozens of various accounts, each with a username and password. to form things a touch bit easier on computer users, variety of various approaches are developed.

is very strong.
Remembering strong passwords can be challenging. One tip from security experts is to come up with a sentence that is easy to remember and to turn that into a password by using abbreviations and substitutions. For example, 'My favorite hobby is to play tennis' could become something like Mf#Hi$2Pt%.

Regular users of computer systems have numerous user accounts. Just consider how many accounts you use on a regular basis: email, social networking sites, financial institutions, online shopping sites and so on. A regular user of various computer systems and web sites will have dozens of different accounts, each with a username and password. To make things a little bit easier on computer users, a number of different approaches have been developed.