Network Essentials Chapter 9

41 cards

Network EssentialsTCP/IP ApplicationsChapter 9


 
  
Created Mar 10, 2010
by
macgal54

 

 
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1
session  
 
in the networking world any single communication btw computer and another computer
2
Transmission Control Protocol TCP
 
is how TCP/IP does connection-oriented communication.  TCP is by far the most common type...
3
SYN ACK FIN RST
 
synchronize acknowledge finish reset
4
User Datagram Protocol (UDP)
 
runs a distant second place to TCP in terms of the number of applications that use it, but...
5
Trivial File Transfer Protocol (TFTP)  
 
ex of a protocol with which you can transfer files from one machine to another. But TFTP using...
6
ICMP Internet Control Message Protocol
 
The Internet Control Message Protocol (ICMP) is one of the core protocols of...
7
IGMP Internet Grup Management Protocol
 
IGMP is the glue that routers use to communicate with hosts to determine a group membership.The...
8
NAT
 
In computer networking, network address translation (NAT) is the process of modifying...
9
Port Number
 
a 16-bit value btw 0 and 65,535. Web servers use port no 80. Port nos 0-1023 are called well-known...
10
IANA Internet Assigned Numbers Authority     
 
recommends using only ports 49152-65535 as ephemeral port numbers.
11
Ephemeral port numbers
 
An ephemeral (short-lived) port is a transport protocol port for Internet Protocol...
12
Registered Ports
 
the port numbers from 1024 to 49151 are called registered ports.  Less-common TCP/IP apps...
13
Well known port numbers
 
0-1023
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Regostered ports
 
1024-49151
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Dynamic or private ports
 
49152-65535
16
socket or endpoint
 
ea pc on ea side of a session must keep track of the status of the communication.  In...
17
A session or connection
 
refers to the connection in general rather than specific to tcp/ip.  Many people still...
18
socket pairs or endpoints
 
terms for the connection data stored on two computers about the same connection
19
NETSTAT

 
universal show me the endpoint utility. works at the command line; enables you to see active...
20
open port or listening port
 
a socket that is prepared to respond to any ip packets destined for that socket's port number. ...
21
PID  
 
Process ID every running program on your computer gets a PID
22
Rules for Determining Good vs. Bad Communications
 
Memorize a bunch of known ports for common tcp/ip apps.
Learn how to use netstat to see...
23
HTML     
 
Hypertext Markup Language has been around for a long time and as a result has gone thru many...
24
Dynamic Naming system DNS
 
web site text addresses use this naming protocol
25
Hypertext Transfer Protocol HTTP
 
is the underlying protocol used by the web and it runs by default on tcp port 80. When you...
26
Web server
 
is a computer that delivers or serves up web pages.  Web servers listen on port 80, fetching...
27
Internet Information Services IIS
 
a MS app that enables you to set a max connection limit on your web server based on available...
28
Denial of Service DOS
 
malicious attack on a web site
29
Apache HTTP Server
 
unix/linux based os serves well over 50% of the web sites on the internet.  Apache is...
30
Web clients
 
are the programs used to surf the Web.  A client program aka a web browser reads web pages...
31
HTTPS Hypertest Transfer Protocol over SSL Secure Sockets Layer
 
uses TCP port 443. SSL is a protocol developed by Netscape for transmitting private docs over...
32
Telnet
 
runs on tcp port 23 enabling you to connect to a telnet server and run commands on that...
33
Secure Shell (SSH)
 
replaced telnet and is a terminal emulation program that looks exactly like telnet but encrypts...
34
Telnet client
 
computer from which you log onto the remote server.
35
PuTTy
 
PuTTY is a free and open source terminal emulator application which can act as a client...
36
Rlogin, RSH Remote Shell and RCP Remote Copy
 
These are three old school programs in the UNIX world.  The R stands for remote and like...
37
SMTP Simple Mail Transfer Protocol
 
is used to send email. SMTP travels over TCP port 25 and is used by clients to send messages.
38
POP3 Post Office Protocol version 3
 
is one of the two protocols that receive email from SMTP servers.  POP3 uses TCP port...
39
IMAP4 Internet Message Access Protocol version 4
 
is an alternative to POP3. Like POP3, IMAP4 retrieves email from an email server. IMAP4 uses...
40
FTP File Transfer Protocol
 
is the orig protocol used on the inet for transferring files. Although http can be used to...
41
Review tool to help remember Internet Applications
 
http tcp port 80 the web
https tcp port 443 the web security
telnet tcp port 23 terminal...


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