| Type |  Book |
| ชื่อเรื่อง | Defensive security handbook : best practices for securing infrastructure / Lee Brotherston and Amanda Berlin |
| ผู้แต่ง | Brotherston, Lee |
| ISBN | 1491960388 (pbk.) |
| | 9781491960387 (pbk.) |
| พิมพลักษณ์ | Sebastopol, CA : O'Reilly Media, Inc., c2017 |
| รูปเล่ม | 261 p. : ill |
| หัวเรื่อง | Computer networks --Security measures --United States [] |
| | Computer security --United States [] |
| | Computer security --United States [] |
| | Information technology --Security measures [] |