by Satish Kumar | Jan 18, 2023 | Linux
Linux is a free and open-source operating system that is based on the Unix operating system. It was first created in 1991 by a student named Linus Torvalds, and has since grown to become one of the most popular operating systems in the world. Linux is used by...
by Satish Kumar | Jan 17, 2023 | Interview
The default timeout value for TCP sessions is typically around 75 seconds. This value is determined by the operating system and can vary depending on the specific implementation. TCP TCP is a reliable, connection-oriented protocol that is used to establish a secure...
by Satish Kumar | Jan 17, 2023 | Interview
Policy NAT, also known as policy-based NAT, is a method of configuring Network Address Translation (NAT) on a router or firewall. It allows for more granular control over the translation of IP addresses, as opposed to the traditional method of NAT, known as basic NAT...
by Satish Kumar | Jan 17, 2023 | Interview
A transparent firewall, also known as a layer 2 firewall, functions as a security barrier between different networks or subnets. It operates at the data link layer (layer 2) of the OSI model, which is responsible for creating logical links between devices on a...
by Satish Kumar | Jan 17, 2023 | Interview
Firewalls are an important component of network security, and they operate at various layers of the OSI model. Understanding the different layers in which firewalls operate can help administrators understand how they work and how to use them effectively. Layer 3...
