Craig Hunt,
      "TCP/IP Network Administration".
O'Reilly & Associates,
      1998,
      2nd edition, 612 pages,
      
      ISBN 1-56592-322-7.
    
Peek, O'Reilly, Loukides,
      "UNIX Power Tools".
O'Reilly & Associates,
      1997,
      2nd edition, 1073 pages,
      
      ISBN 1-56592-260-3.
    
W. Richard Stevens,
      "Advanced Programming in the UNIX  Environment".
Addison-Wesley,
      1992,
      
      ISBN 0-201-56317-7.
    
W. Richard Stevens,
      "TCP/IP Illustrated Volume 1 - The  Protocols".
Addison-Wesley,
      1994,
      
      ISBN 0-201-63346-9.
    
W. Richard Stevens, Gary R. Wright,
      "TCP/IP Illustrated Volume 2 - The  Implementation".
Addison-Wesley,
      1995,
      
      ISBN 0-201-63354-X.
    
W. Richard Stevens,
      "TCP/IP Illustrated Volume 3 - T/TCP,  HTTP, NNTP and the Unix Domain Protocols".
Addison-Wesley,
      1996,
      
      ISBN 0-201-63495-3.
    
W. Richard Stevens,
      "UNIX Network Programming Vol. 1 - Networking APIs: Sockets and XTI".
Prentice Hall,
      1998,
      2nd edition, 1009 pages,
      
      ISBN 0-13-490012-X.
    
W. Richard Stevens,
      "UNIX Network Programming Vol. 2 - Interprocess Communication".
Prentice Hall,
      1999,
      2nd edition, 558 pages,
      
      ISBN 0-13-081081-9.