 Absolute Beginner's Guide to DatabasesAbsolute Beginner's Guide to Databases brings the elements of a database together using easy to understand language, perfect for the true beginner. It not only gives specific hands on practice, but also provides an overview of designing, maintaining and using a database. This book covers what databases are used for, why databases are... |  |  |  |  Building Firewalls with OpenBSD and PF, 2nd EditionWritten by Jacek Artymiak, a frequent contributor to ONLamp.com, Building Firewalls with OpenBSD and PF is the first and only print publication devoted solely to the subject of the pf packet filter used in OpenBSD, FreeBSD, and NetBSD operating systems. Topics covered include: firewall design, ruleset syntax, packet normalization (scrubbing),... |