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Slide 16
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TCP/IP Fundamentals
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Slide 14
Sockets
Analogy with Telephone:
Instrument, Number, Line
Example Applications
: From
/etc/services
Connection Oriented (TCP)
Client
Server
Port
Mail
smtpd
25
Telnet
telnetd
23
FTP
ftpd
20,21
WWW Browser
httpd
80
Connectionless (UDP)
Client
Server
Port
SNMP
snmpd
161
NFS
nfsd
2049
Sridhar Iyer
2000-08-04