TY  - BOOK
AU  - Seagren,Eric
TI  - Secure your network for free: using NMAP, Wireshark, Snort, Nessus, and MRTG 
SN  - 9781597491235
PY  - 2006///
CY  - Rockland, Mass., Oxford
PB  - Syngress, Elsevier Science [distributor]
KW  - Computer networks
KW  - Security measures
N1  - Includes index
ER  -