Your HOSTS file looks like this:
11.12.13 UNIX programmer # Programmers FTP server
11.12.14 server
11.12.15 UNIX developer #Developers FTP server
11.12.20 developer # developer
you try to ftp developer, you can connect to the right server. But you try ftp 10.11.12.20, you fail to connect. Why?
Answer / indu
In Line 3 , developer is being defined as 10.11.12.15. Thus,
10.11.12.20 is NOT the machine "developer".
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