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Gary C. Kessler

Gary C. Kessler is a consultant and the program coordinator of the networking major at Champlain College in Burlington, Vermont.

[email protected]

Gary C.’s Recent activity

Other Forms of Steganography
Mar 24, 2002
Although much of the steganography in use today is quite high tech, many low-tech methods exist. One common low-tech steganography method is null cipher, in which you use the first letter (or another fixed letter) of...
Hiding Data in Data
Mar 24, 2002
Further increase the security of your communications with steganography...
DNS Resources
May 08, 2000
Microsoft and several third parties offer products that let you provide a DNS service on a Windows NT server. Some products listed below support dynamic DNS (DDNS), which lets you dynamically update the DNS entries in...
Subnetting and Variable-Length Subnet Masks
May 08, 2000
IP addresses are 32 bits long. The length of the network identifier (NET_ID) part of the address determines an IP address classification. Class A, B, and C addresses have 8-, 16-, and 24-bit NET_IDs, respectively. For...
How DNS Works
May 01, 2000
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IP Addressing Basics
Aug 31, 1999
IP version 4 (IPv4) addresses are 32 bits long, as Figure A shows. IPv4 addresses typically occur as a sequence of four numbers that represent the decimal value of each of the address bytes. Because periods separate...
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