Term
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Definition
| a port is a logical construct that serves as the endpoint of a connection within the OS of the end system |
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Term
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Definition
| has an associated source and destination port in the header |
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Term
| the internet assigned number authority, or IANA, separates port numbers into three blocks |
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Definition
-well known
-registered
-dynamic |
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Term
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Definition
| range 0-1,023, and are pre-assigned for use by specific widely used applications and services |
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Definition
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Term
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Definition
| 49,152-65,535. can't be registered with IANA and are typically used for temporary or one time connections |
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Term
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Definition
| at communication endpoints in an IP network. they make it possible to deliver data packets to the appropriate services or application processes |
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Definition
| address that identifies a protocol, an IP address, and a port number. so each is bound to a particular port |
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Term
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Definition
| provides the rules and standards for communication between network devices |
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Term
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Definition
| a suite of networking protocols that enables communication on a network. |
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Term
| a connection-oriented protocol |
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Definition
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Term
| doesn't need a logical connection to transmit data |
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Definition
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Term
| at the internet layer of the TCP/IP suite, IP is a connectionless protocol that's responsible for ? |
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Definition
| addressing and relaying data packets |
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Term
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Definition
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Term
| VoIP-applications and other streaming video applications are well suited to |
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Definition
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Term
| File Transfer protocol, FTP |
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Definition
| makes it possible to transfer files between a local and a remote host, and to create and alter directories on the remote host |
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Term
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Definition
TCP
ports 20-is used for data transfer
port 21-is used for control commands |
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Term
| Trivial File Transfer Protocol, TFTP |
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Definition
| a simplified version of FTP used for file transfer, and booting network devices which don't have local storage. unlike FTP it doesn't support authebtication |
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Term
| Post Office protocol Version 3, POP3 |
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Definition
| is used to retrieve e-mail messages from a mailbox on a mail server |
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Term
| Simple Mail Transfer Protocol, SMTP |
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Definition
| used alongside POP3 to send and receive e-mails. it uses a store-and -forward process, with e-mail messages automatically stored until the destination is online. |
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Term
| Internet Message Access Protocol version 4, IMAP4 |
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Definition
| like POP3 this is used to retrieve messages from a server. unlike POP3, it enables users to access, search, and modify messages while they're still store on a server. Users can also choose which messages to download |
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Term
| Hypertext transfer protocol, HTTP |
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Definition
| enables users to retrieve web pages from a server and interact with the page using their web browser. |
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Term
| Hypertext transfer protocol secure, HTTPS |
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Definition
| is a secure version of HTTP that uses SSL to encrypt data. However, not all web browsers and servers support this |
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Term
| Server Message Block, SMB |
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Definition
| uses a client-server model to enable networked computers to communicate and to share resources such as files, printers, and serials ports. It's used mainly Microsoft networks |
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Term
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Definition
| operates on port 22,enables you to log on to a remote computer or network device using a secure, encrypted connection |
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Term
| Secure Copy Protocol, SCP |
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Definition
| also operates on port 22,uses SSH to copy files safely between a local and remote host or between two remote hosts. like SSH it uses port 22. it can be implemented as a command line utility that uses to enable secure copying |
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Term
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Definition
| simulates a session on a remote host as if the PC you are using was a directly attached terminal. It translates keystrokes from your PC into keystrokes on the remote host. It then carries the output back and displays it on your computer. |
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Term
| Secure Sockets layer, SSL |
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Definition
| provide, secure, encrypted data transfer. It uses digital certificates for authentication as well as public key data encryption. HTTPS uses this for secure web connections |
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Term
| Transport Layer security,TLS |
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Definition
| It protects sensitive communications from eavesdropping or tampering using a secure, encrypted, and authenticated channel. was developed as a replacement for SSL and can be used for secure HTTPS connections |
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Term
| Network Time Protocol, NTP |
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Definition
| protocol that synchronizes the clock times of network computers by exchanging signals with a US Naval Observatory master clock. Is implemented via UDP |
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Term
| Network News Transfer protocol, NNTP |
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Definition
| is used to post and retrieve messages from the worldwide bulletin board system called USENET, which includes more than 14,000 forums-or newsgroups-devoted to specific topics |
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Term
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Definition
| lets users access and share files distributed across a network as if they were stored locally |
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Term
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Definition
| resolves domain names into IP addresses and vice-versa. It maintains a system of hierarchical database, stored on separate servers on networks that connect to the internet. the data bases record IP addresses and the associated domain names |
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Term
| Lightweight Directory Access Protocol, LDAP |
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Definition
| defines how a client can access information, perform operations, and share directory data |
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Term
| Dynamic Host Configuration Protocol, DHCP |
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Definition
| this server automatically assigns IP addresses and other configuration information to clients. to do this, it must be configured with at least one of "these" scope, which contains a range of available IP addresses and a subnet mask. It may also specify details such as a default gateway and DNS addresses. Each assigned IP address is leases to a client for a defined period |
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Term
| Bootstrap Protocol, BOOTP |
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Definition
| was a forerunner of DHCP designed for systems without local storage to obtain an IP address, since they couldn't store their address locally. this server assigns IP addresses from a pool of available addresses |
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Term
| Zero Configuration Networking, Zeroconf |
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Definition
| is a set of standards that enables automatic configuration and IP address allocation on both Ethernet and wireless networks. this network can exist without central control or configuration services such as DHCP and DNS. Microsoft APIPA is an example of this |
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Term
| Address resolution Protocol, ARP |
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Definition
| resolves hosts' IP addresses to the corresponding physical addresses in a local network |
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Term
| Reverse Address Resolution Protocol, RARP |
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Definition
| enables a device on a LAN to discover its IP address using a router's ARP table or cache |
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Term
| Real-time transport protocol, or RTP |
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Definition
| provides a standard packet format for transmitting audio and video content over IP networks |
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Term
| session Initiation protocol, SIP |
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Definition
| is a signaling protocol for controlling multimedia communication sessions-for example, those involving voice or video calls over IP. It can initiate, modify, and terminate sessions |
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Term
| Internet control message protocol, ICMP |
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Definition
| reports on the condition of a connection between two networks devices |
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Term
| Internet Group management protocol,IGMP |
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Definition
| informs network systems which host currently belongs to which multicast group. for this to work, routers have to support it, as well as multicast packet routing |
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Term
| Simple Network Management Protocol, SNMP |
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Definition
| collects information from network devices for diagnostic and maintenance purpose. this software is installed on network devices such as servers, routers, and printers. |
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Term
| Trivial File Transfer Protocol, TFTP port |
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Definition
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Term
| Post Office protocol Version 3, POP3 port |
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Definition
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Term
| Simple Mail Transfer Protocol, SMTP operates on port |
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Definition
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Term
| Internet Message Access Protocol version 4, IMAP4 port |
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Definition
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Term
| Hypertext transfer protocol, HTTP port |
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Definition
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Term
| Hypertext transfer protocol secure, HTTPS/SSL/TLS port |
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Definition
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Term
| Server Message Block, SMB port |
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Definition
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Term
| Secure Shell,SSH and Secure Copy Protocol, SCP port |
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Definition
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Term
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Definition
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Term
| Network Time Protocol, NTP port |
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Definition
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Term
| Network News Transfer protocol, NNTP port |
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Definition
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Term
| Network File System, NFS port |
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Definition
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