Network security is any activity designed to protect the usability and integrity of your network and data. It includes both hardware and software technologies. It targets a variety of threats. It stops them from entering or spreading on your network. Effective network security manages access to the network.

1. What is Network Security?
IDS - Intrusion Detection System
IPS - intrusion prevention system
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2. What is network security?
• Every Organization protects their files using Network security tools.
• IDS - Intrusion Detection System
• IPS - intrusion prevention system
• The use of both hardware and software methods by any business or
organization to secure its computer network and data is referred to as
network security. This seeks to protect the network's and data's
confidentiality and accessibility. Every business or organization that
deals with a lot of data has some sort of defence against various
cyber threats.

3. • Block VIRUSES THREATS from the internet and report it to the
concerned network engineer.
• Network security protects clients' information and data, ensuring
dependable access and protecting data from cyber threats.
• Network security safeguards the organisation against large losses
caused by data loss or other security incident.
• It safeguards the organization's reputation by safeguarding data and
confidential materials.

4. 3 Types
• Physical Network Security
• Technical Network Security
• Administrative Network Security

5. IDS - Intrusion Detection System
• An intrusion detection system (IDS) is a technological tool that scans your
network's incoming and outgoing traffic for unauthorised activity and policy
violations. As the name implies, the main function of an IDS is to identify and stop
intrusions into your IT infrastructure, then notify the appropriate parties.
• A computer network's traffic is monitored by an IDS (Intrusion Detection System)
to look for any unusual activities.
• The network's data is analysed to seek for trends and indications of unusual
behavior.
• The IDS compares the network activity to a set of predefined rules and patterns
to identify any activity that might indicate an attack or intrusion.
• The system administrator receives a notification if the IDS finds something that
corresponds to one of these rules or patterns.
• After looking into the alert, the system administrator can take appropriate
measures to stop any harm or additional infiltration.

7. Intrusion prevention system (IPS)
• An intrusion prevention system (IPS) is a network security technology
(either hardware or software) that continuously monitors a network
for harmful behaviour and takes action to prevent it, such as
reporting, blocking, or dropping it, if it does occur.
• The terms intrusion detection and prevention system and intrusion
prevention system are interchangeable. It is a network security tool
that checks system or network activity for suspicious behaviour. The
main duties of intrusion prevention systems are to spot harmful
activity, gather data on it, report it, and make an effort to block or
stop it.

9. What are the 4 types of IPS?
• Network-based intrusion prevention system (NIPS)
• Wireless intrusion prevention system (WIPS)
• Network behavior analysis (NBA)
• Host-based intrusion prevention system (HIPS)