1๏ธโฃย ๐๐น๐ถ๐ฒ๐ป๐ ๐ฅ๐ฒ๐พ๐๐ฒ๐๐:ย A client (computer) initiates a request to access a resource (e.g., a webpage or database query).
2๏ธโฃ ๐ก๐ฒ๐๐๐ผ๐ฟ๐ธ ๐ง๐ฟ๐ฎ๐ป๐๐บ๐ถ๐๐๐ถ๐ผ๐ป: The request is sent over the network towards the destination server.
3๏ธโฃ ๐๐ถ๐ฟ๐ฒ๐๐ฎ๐น๐น ๐๐ป๐ฐ๐ผ๐๐ป๐๐ฒ๐ฟ:ย The request first encounters the firewall, which acts as a security checkpoint.
4๏ธโฃ ๐ฃ๐ฎ๐ฐ๐ธ๐ฒ๐ ๐๐ถ๐น๐๐ฒ๐ฟ๐ถ๐ป๐ด: ๐ฉ The firewall checks the request against predefined security rules. ๐ฉ If the packet meets security criteria (e.g., allowed IPs, ports, protocols), it moves forward. ๐ฉ If the packet doesnโt meet the criteria, it is dropped (blocked).
5๏ธโฃ ๐๐ผ๐ฟ๐๐ฎ๐ฟ๐ฑ๐ถ๐ป๐ด ๐๐ผ ๐ฆ๐ฒ๐ฟ๐๐ฒ๐ฟ:ย If the request passes all checks, the firewall forwards it to the destination server.
6๏ธโฃย ๐ฆ๐ฒ๐ฟ๐๐ฒ๐ฟ ๐ฃ๐ฟ๐ผ๐ฐ๐ฒ๐๐๐ถ๐ป๐ด: The server processes the clientโs request (e.g., retrieving a webpage, fetching data).
7๏ธโฃ ๐ฅ๐ฒ๐๐ฝ๐ผ๐ป๐๐ฒ ๐๐ถ๐น๐๐ฒ๐ฟ๐ถ๐ป๐ด:ย The serverโs response passes through the firewall again, ensuring no malicious content is sent back to the client. If safe, it is delivered.
๐๐ถ๐ฟ๐ฒ๐๐ฎ๐น๐น ๐ฆ๐ฒ๐ฐ๐๐ฟ๐ถ๐๐ ๐๐ฒ๐ฎ๐๐๐ฟ๐ฒ๐: โ Application Layer Filtering: Protects against threats like malicious URLs, file type filtering, and intrusion detection.
โ Packet Filtering Rules: Defines what traffic is allowed or blocked based on IP addresses, ports, and protocols.
โ Stateful Inspection Rules: Tracks connection states, verifies new connections, and enforces security timeouts.
#tecversity
๐ฅ ๐๐ผ๐ ๐๐ถ๐ฟ๐ฒ๐๐ฎ๐น๐น๐ ๐ช๐ผ๐ฟ๐ธ๐?: ๐ฆ๐๐ฒ๐ฝ-๐ฏ๐-๐ฆ๐๐ฒ๐ฝ ๐๐๐ถ๐ฑ๐ฒ!ย ๐ก๏ธ
1๏ธโฃย ๐๐น๐ถ๐ฒ๐ป๐ ๐ฅ๐ฒ๐พ๐๐ฒ๐๐:ย A client (computer) initiates a request to access a resource (e.g., a webpage or database query).
2๏ธโฃ ๐ก๐ฒ๐๐๐ผ๐ฟ๐ธ ๐ง๐ฟ๐ฎ๐ป๐๐บ๐ถ๐๐๐ถ๐ผ๐ป: The request is sent over the network towards the destination server.
3๏ธโฃ ๐๐ถ๐ฟ๐ฒ๐๐ฎ๐น๐น ๐๐ป๐ฐ๐ผ๐๐ป๐๐ฒ๐ฟ:ย The request first encounters the firewall, which acts as a security checkpoint.
4๏ธโฃ ๐ฃ๐ฎ๐ฐ๐ธ๐ฒ๐ ๐๐ถ๐น๐๐ฒ๐ฟ๐ถ๐ป๐ด: ๐ฉ The firewall checks the request against predefined security rules. ๐ฉ If the packet meets security criteria (e.g., allowed IPs, ports, protocols), it moves forward. ๐ฉ If the packet doesnโt meet the criteria, it is dropped (blocked).
5๏ธโฃ ๐๐ผ๐ฟ๐๐ฎ๐ฟ๐ฑ๐ถ๐ป๐ด ๐๐ผ ๐ฆ๐ฒ๐ฟ๐๐ฒ๐ฟ:ย If the request passes all checks, the firewall forwards it to the destination server.
6๏ธโฃย ๐ฆ๐ฒ๐ฟ๐๐ฒ๐ฟ ๐ฃ๐ฟ๐ผ๐ฐ๐ฒ๐๐๐ถ๐ป๐ด: The server processes the clientโs request (e.g., retrieving a webpage, fetching data).
7๏ธโฃ ๐ฅ๐ฒ๐๐ฝ๐ผ๐ป๐๐ฒ ๐๐ถ๐น๐๐ฒ๐ฟ๐ถ๐ป๐ด:ย The serverโs response passes through the firewall again, ensuring no malicious content is sent back to the client. If safe, it is delivered.
๐๐ถ๐ฟ๐ฒ๐๐ฎ๐น๐น ๐ฆ๐ฒ๐ฐ๐๐ฟ๐ถ๐๐ ๐๐ฒ๐ฎ๐๐๐ฟ๐ฒ๐:
โ Application Layer Filtering: Protects against threats like malicious URLs, file type filtering, and intrusion detection.
โ Packet Filtering Rules: Defines what traffic is allowed or blocked based on IP addresses, ports, and protocols.
โ Stateful Inspection Rules: Tracks connection states, verifies new connections, and enforces security timeouts.
๐ช๐ต๐ ๐๐ถ๐ฟ๐ฒ๐๐ฎ๐น๐น๐ ๐ ๐ฎ๐๐๐ฒ๐ฟ?
๐น Protects networks from unauthorized access.
๐น Blocks malware, phishing attempts, and hackers.
๐น Ensures only legitimate traffic reaches your system.
Firewalls are a must-have in todayโs threat landscape.
#CyberSecurity #Firewall #NetworkSecurity #ITSecurity #CyberDefense #ZeroTrust #tecversity #sysmorphosec #venkateshnataraj
8 months ago | [YT] | 3