Open Systems Interconnection (OSI) was developed in 1977 by ISO. TCP/IP was developed in 1969. OSI Layers OSI model layers: A mnemonic way to remember these layers is to memorize the sentence All People Seem To Need Data Processing. The…
This post summarizes information security or cybersecurity control inventories. List of Information Security Control Catalogues Information Security Control Catalogues: ISO/IEC 27002 ISO/IEC 27002 is officially titled “Information security, cybersecurity and privacy protection — Information security controls”, but it can be…
Simple Network Management Protocol (SNMP) is an internet protocol of the OSI Application layer 7. It collects and organizes information about managed devices on IP networks and modifies that information to change device behavior. SNMP is widely used for network…
Network Basic Input/Output System (NetBIOS) is a protocol of OSI session layer 5. It provides a NetBIOS name to each computer, in addition to the already existing IP address from OSI network layer 3. Nowadays, NetBIOS runs over TCP The…
This post summarizes the types of software licenses. When comparing software licenses, some are more permissive or restrictive than others, indicating that the limitations of use are more expanded or limited. These licenses are introduced on this post in descending…