Which are the most reliable firewalls in market?

If you are looking for a quality firewall, you may consider Cisco ASA firewalls. Cisco ASA 5500 and ASA 5500-X Series Next-Generation firewalls are especially made for small and branch offices. For high performance and at low cost budget, Cisco ASA firewalls are very good option. To know more details about Cisco ASA firewalls visit www.cisco.com/en/US/prod/vpndevc/ps6032/ps6094/ps6120/eot_sobo.html

In case of limited budget, you may check TRENDnet Dual WAN Advanced VPN Router (TW100-BRV324).

The other options are:

1. Checkpoint Safe@Office 1000N
2. D-Link DFL-210
3. Netgear ProSafe Dual WAN Gigabit Firewall (FVS336G)
4. SonicWall TZ 200

Firewall: It is a software or hardware that controls the incoming and outgoing network based on applied rule set.

Don't purchase Sonic Firewall because i myself cracked this software in my college life . So i will suggest you to go for CheckPoint Firewall.

As of my knowledge, I prefer
1. Sonicwall Firewall
2. Cisco Firewall
3. Comodo pro Firewall
4. Barracuda Firewall
5. Armor Firewall
These are few firewalls which are best in market and highly protective and effective. Try these and give your feedback here.

Firewalls are capable of blocking external threats that come from human intruders. These serve as a hidden "shield" against those several threats that may come along with the internet most especially hackers. A person can choose a certain firewall based on the purpose of the computer. We need first to identify if our computer is used for business or for personal used only. Second, we also need to know the advantages and the disadvantages of the firewalls. Lots of firewalls are available in the market nowadays, so we need to know the capabilities of each firewall. Firewall alone can't defend us from other threats like malware and viruses, so we need also a kind of defense internally.

For me, Among the many firewalls in the market and studying reviews about them I would highly recommend the Barracuda Firewall (for SMBs) and the Barracuda Cloudgen Firewall (for distributed enterprises). It says that, this kind of firewall is the most comprehensive and the cost-effective solution if you want to safeguard your business and to keep the most critical applications up and running.

Nowadays, we know for a fact that we have tablets, phones and other devices that are used to access websites. So, this firewall I'm recommending is designed to automatically offload resource-intensive task such as virus and spyware scanning, content filtering and reporting to cloud so that your network performance will not be compromised.