Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] AAC (Advanced Audio Code) format absolute links Access Forbidden (error messages) access points (WiFi) access routers ACK (Acknowledgment) packets Acknowledgment (ACK) packets ActiveX 2nd address spaces, IPv6 addresses directed broadcast addresses email addresses 2nd 3rd IP (Internet Protocol) addresses dynamic IP addresses 2nd overview static IP addresses 2nd NAT (Network Address Translation) URLs (uniform resource locators) 2nd overview retrieving web pages with structure agencies [See organizations, IAB (Internet Architecture Board).] agents (search) AIM (AOL Instant Messenger) AJAX (Asynchronous JavaScript and XML) algorithms (encryption) America Online (AOL) 2nd ampersand (&) analog signals animation animated GIFs client pull Flash animation overview server push 2nd Shockwave anonymous FTP (File Transfer Protocol) AOL (America Online) 2nd applets (Java) application layer (network communications) APs (access points) archives (newsgroup) ASCII mode (FTP) Asynchronous JavaScript and XML (AJAX) at (@) sign attachments (email) 2nd attacks (security) bot networks buffer overflow DDoS (Distributed Denial of Service) attacks DoS (Denial of Service) attacks hackers 2nd 3rd overview smurf attacks viruses attachments checking for how they work HTML MIME overview protecting against Trojan horses 2nd v-markers worms 2nd zombies au (.au) domain name auctions (eBay) audio Internet radio broadcasting MP3 files overview RealPlayer streaming audio sharing 2nd |