Establishing Keys and Message Exchange - Introduction to Cryptography with Java Applets - page 279

TABLE 15.1

Protocol Port

echo 7

discard 9

daytime 13

ftp-data 20

ftp 21

telnet 23

smtp 25

time 37

whois 43

finger 79

http 80

pop3 110

nntp 119

RMI registry 1099

Socket connectionClientSide =
new Socket(“WupAssGameMachine”,54321);
The server's name can be any of the following:

1.

Its name on a network (if the client is also part of that network),

2.

Its domain name on the Internet (if it has one), or

3.

Its IP (Internet Protocol) address (this is a number in dotted quad format, like 127.0.0.1).
Any computer connected to the Internet will have an IP address.
If anything goes wrong in setting up, the ServerSocket and socket constructors can throw
various exceptions, as listed in Table 15.2.

TABLE 15.2

ServerSocket() Socket()

IOException IOException

BindException UnknownHostException