What are the functions of Fierwall?
A personal firewall is an application which controls network traffic to and from a computer, permitting or denying communications based on a security policy. ... Unlike network firewalls, many personal firewalls are able to control network traffic allowed to programs on the secured computer.
- Provides security features.
- Can configure security policies.
Types of fierwalls-
- Packet-filtering firewalls.
- Stateful inspection firewalls.
- Circuit-level gateways.
- Application-level gateways (a.k.a. proxy firewalls)
- Next-gen firewalls
Pro's-
- A firewall blocks "evil packets" from being "permitted to reach a place where they can do harm
- The individual system's operating system-based firewall can be configured to provide a great deal of security, but a network-based firewall, such as a router, can protect multiple systems simultaneously.
Con's-
- Packet filtering by a software firewall can degrade your system's performance, because it's a demanding task to examine every packet of data.
- configuring and maintaining the firewall can be a difficult.
- A network firewall also can lend users a false sense of security, encouraging them not to maintain security at the machine level.
- If the network firewall fails or is not configured properly, this could prove disastrous.
A wireless access point (WAP) is a hardware device or configured node on a local area network (LAN) that allows wireless capable devices and wired networks to connect through a wireless standard, including Wi-Fi or Bluetooth. ... A WAP is also known as a hotspot.
Functions of wireless access points-
- Takes our internet to air, but in range.
- Was not very secure earlier .
- Creates a virtual connection .
How to install WAP ?
We need to give power to the device.
We need to connect the WAN connection to the device.
We need to connect the WAN connection to the device.
Set password for security.
Pro's-
- Takes your internet to air, that means we don't have to be take the wire and running across the places for internet.
- Can add an extra layer of security be inserting a password to access the WAP connection.
Con's-
- Security venerability.
- Takes the internet to air, but, in a specific range.
- If we have to options wired or wireless, chances are good that wired one will give a reliable and high speed .
Functions of wierless controller-
- Wireless LAN controllers - net admins use these to manage many different access points. When access points are configured to pull their configuration from a wireless controller they are called lightweight access points. A wireless controller can manage a large number of access points at once, which reduces the amount of management overhead required.
Pro's-
- Flexibility
- Cost savings
- Access and availability
Con's-
- Installation problems
- Security
- Coverage
- Transmission speeds
