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What is service attack, plz tell me in detail about it, how people do service attacks and how can i save my ass, and and whether keeping my self upgrade with a firewall like zonealarm and antivirus like norton, assure my safety from all types of hacker?
A service attack (as the name would suggest) is an attack against a service. ie a service that you are running on your computer. For exampe, - lets say we run a web service on port 80 - because we want people to access our website our firewall is configured to allow connections on port 80. An AVTK scans for viruses/trojans but even IIS doesn't fall ito this category (but only just - yes I know). So neither a firewall or AVTK will stop service attacks.
The good news for your 'ass' (where your donkey comes into this I'm somewhat mistified however...) is that if you don't run any services (which I'm guessing you don't) then no-one can attack them.
If you want more details check this out.
Oh - and you mean cracker, NOT hacker - hackers make things, crackers break things.
Only full proof method I ever heard of was to use netcat on all major ports, and use it as a kind of remote server. That way netcat takes a beating, and your services are basically alright. Funny thing to do would be to scan the packets, and have netcat send a virus to the attacker. Unfortunately, this slows your server or computer down so much it's not worth it.
Ajchez > Erm. No.
Naughty Prince, I'm confused... Are you talking about DoS attacks?
An easy example:
DoS attacks is throwing random data into a connection, IRC room, e-mail address, & (ect) intil the target either gets knocked offline or PCs start crashing.
Yeah, and just to add to what The Specialist has already said, a DOS attack could also be someone intentionally/unintentionally disconnecting a network cable or unplugging a server. It's all in the name Denial of Service...that means any denial of service or outage of the nature...