I use Antivirus with auto live update on my Home PC, NO LAN. I never download and use any pirated software. I never go on any illegal site. Still should i install firewall also if yes then which is best free , easy to use, lightweight on memory.
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This question covers exactly the same ground as earlier questions on this topic; its answers may be merged with another identical question. See the FAQ.
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Yes, you should run a firewall. Antivirus applications may stop rogue applications within your PC from doing damage, but external attacks don't require any action on your part. You say PC, so I'll assume Windows. If you're running Linux, the specifics differ, but the generic issue is the same. Windows runs services on TCP/IP ports that are exposed to the world. To connect to a printer, for example, it uses a network connection. And to publish its' name to a domain controller, it listens on a port. It's possible for an external machine to attempt to connect to your PC on those ports. Most of those ports are now secured, and if you have a router, it's a lot more difficult for them to get to those ports. If you're behind an SPI (stateful packet inspection) router, it's extremely difficult. But if your PC is hooked up to the net via a DSL/cable modem, you could be visible to external attacks. Go to https://www.grc.com/x/ne.dll?bh0bkyd2 and run their "Shields Up!" tool. It will simulate attacks on your machine and show you what was able to get through. It's harmless, but it will show you what exposures you have. As for software firewalls, I've found that Armour Online's free version (www.tallemu.com) to be the best free firewall. Comodo and Outpost are also highly rated. | |||
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You do have a firewall installed on your PC, XP comes with one built in :) I'd keep it enabled regardless of your perception of how safe you browse the internet and use your computer. The firewall doesn't just help protect you from your own actions, but the malicious actions of others trying to access your machine. | |||
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The short answer is yes, you need some sort of hardware or software firewall. What OS are you running? Windows comes with Windows Firewall and that should be turned on. Otherwise, I would not recommend plugging your computer directly in to your computer or DSL modem. You should have a router (ex. WRT54G) sitting between you and the modem because that contains a hardware firewall. | |||
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I do download torrents, and have never had any issues with Avast Anti virus installed, without any extra firewall. If you want extra protection, Comodo Free Firewall should help. It has lots of features, and some are more annoying then others. I don't think you need anything. Some info on Windows XP Firewall. Good article on WXP firewall. I have never had issues with my XP Machine, but Im pretty cautions. | |||
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