00257nam a2200109Ia 4500008004100000041001200041082001100053100001300064245005800077260000600135650000600141221030s9999    xx            000 0 und d  aEnglish  a105.23  aB. Komar 0aTCP/IP Network Administration in 21 Dayscby B. Komar  c0  aB