Private network # Computer network that uses the private address space of IP addresses. Private IPv4 Addresses # RFC 1918 name IP address range Number of addresses Largest CIDR block (subnet mask) Host ID size Mask bits Classful description [Note 1] 24-bit block 10.0.0.0 – 10.255.255.255 16777216 10.0.0.0/8 (255.0.0.0) 24 bits 8 bits single class A network 20-bit block 172. ...
In telecommunications , a protocol data unit (PDU) is a single unit of information transmitted among peer entities of a computer network . A PDU is composed of protocol-specific control information and user data . In the layered architectures of communication protocol stacks, each layer implements protocols tailored to the specific type or mode of data exchange. For example, the Transmission Control Protocol (TCP) implements a connection-oriented transfer mode, and the PDU of this protocol is called a segment, while the User Datagram Protocol (UDP) uses datagrams as protocol units for connectionless communication . ...
Making TCP/IP Secure # Encryption Substitution XOR Symmetric-Key Encryption Asymmetric-Key Cryptography Encryption and OSI Integrity Hash Nonrepudiation Digital Signatures PKI Authentication Authorization TCP/IP Security Standards # User Authentication Standards PPP AAA RADIUS TACACS+ Kerberos Encryption Standards SSH Tunneling Combining Authentication and Encryption SSL/TLS IPsec Secure TCP/IP Applications # HTTPS SCP SFTP SNMP LDAP NTP
A security association (SA) is the establishment of shared security attributes between two network entities to support secure communication. The framework for establishing security associations is provided by the Internet Security Association and Key Management Protocol (ISAKMP). Protocols such as Internet Key Exchange (IKE) and Kerberized Internet Negotiation of Keys (KINK) provide authentication keying material. Source # Wikipedia - Security Association
Session software handles all of the sessions for a system/OS. Initiates sessions, accepts incoming sessions, and opens/closes existing sessions. netstat # Connection # Refers to the TCP/IP connection or otherwise known as a session
The Simple Gateway Control Protocol (SGCP) is communications protocol used within a VoIP system. It has been superseded by the Media Gateway Control Protocol (MGCP). Source # Wikipedia - SGCP
Specialized Networks # SAN # 20220319095139-storage-area-network SDN # 20220319095304-software-defined-network
SSL # Secure Sockets Layer Process: Client requests access to an SSL-secured server Server sends the client a copy of the SSL Certificate The SSL client checks the certificate against CA roots Client negotiates a symmetric-key cipher for use in the session Session is now secure with an encrypted tunnel SSL is limited to HTML , FTP , SMTP , and a few older TCP applications. ...
A subnetwork or subnet is a logical subdivision of an IP network . The practice of dividing a network into two or more networks is called subnetting . Devices in the same subnet share the same network number or routing prefix In technical terms this is known as the most significant bit -group in their IP Addresses In layman terms this can also be considered the network ID The the second field (suffix) is considered the rest field or host identifier The routing prefix may be experessed in Classless Inter-Domain Routing (CIDR) + Example: 198. ...