What Is Port 20 In TCP and UDP?
Computer networks uses different port in order to provides different services and protocols. The port 20 is a popular port …
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What Is OSI (Open Systems Interconnection) Model?
Open Systems Interconnection Model or OSI Model is an architecture to specify computer networks functions in a clear and compatible …
How To “netsh winsock reset” To Fix Windows Network Problems?
Windows operating system uses Winsock technology in order to maintain network and internet communication and connection. During the usage of …
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SNMP Port Number Tutorial with Examples
Simple Network Management Protocol aka SNMP is used to monitor and manage devices over the computer networks. SNMP is popularly …
What Is A Firewall and How Its Work?
Today Firewall is depicted as the main component of the security and networks. Firewalls provide a lot of different operations …
What Is NAT (Network Address Translation) and How It Works?
Network Address Translation a.k.a. NAT is a process or technique used to change IP address and TCP port numbers by …
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What Is DNS Server Or Protocol Port Number?
Domain Name System aka DNS is used to match domain names to the IP addresses. DNS is provided over the …
How To Flush DNS and Reset TCP/IP with ipconfig /flushdns Command In Windows
DNS is used to translate between a human-readable name like poftut.com and IP address like 45.79.1333.118. DNS can use both …
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What Is Socket In Linux?
The socket is a mechanism that provides a connection between the two-processor system by using network stacks. In a more …
How To Scan All TCP and UDP Ports with Nmap?
Nmap is a very useful and popular tool used to scan ports. Nmap by default scans the most popular 1000 …