video credit/Google
THE PROBLEMS OF FIREWALL:
Firewalls introduce problems of their own. Information security involves constraints, and users don't like this. It reminds them that Bad Things can and do happen. Firewalls restrict access to certain services. The vendors of information Technology are constantly telling us "anything, anywhere,anytime", and we believe them naively. Of course they forget to tell us we need to log in and out, to memorize our 27 different passwords, not to write them down on a sticky note on our computer screen and so on.
Firewalls can also constitute a traffic bottleneck. They concentrate security in one spot, aggravating the single point of failure phenomenon. The alternatives however are their no Internet access, or no security, neither of which are acceptable in most organization.
ADVANTAGES OF FIREWALL:
* they provide more complete protection than software firewalls.
*it can protect an entire network computers
*it don't effect system performance
*operate independently of your operating system and software applications.
DISADVANTAGES OF FIREWALL:
*they tend to be more expensive than software firewalls, although if you have several machines to protect it can cost less to purchase one hardware firewall than a number of copies of a software firewall.
*they can be a bit challenging to configure.
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