the opportunity this time I took time to post because this month I'm very busy with my school and my job became a
computer technician and network. but for you all do not worry I will always be bothered to post this on my website almost every day or week. us directly to our subject in the conduct of wireless
security .... why did I post about security or wireless
security because lots of
software and lots of hackers or crack spread in cyberspace or the
internet so I release tips and tricks in this post. but we must know what is meant by wireless networks or who is often called a wireless network understanding very simple and clear is very easy for the setup, and also feels comfortable, especially if we want to be able to walk around the house or office with a portable
computer / laptop / net book, but we are still able to access the
Internet network. however, because the wireless waves, it will be easier on the hack by hackers or crackers or a can of
computer and network experts from the connections that are still using the cable.
I took out my 10 tips and tricks you can use to secure the wireless network / wireless us, is as follows:
1. Wearing encryption.
Encryption is the first security measure, but many wireless access points (WAPs) do not use encryption as a default. Although many WAP has Wired Equivalent Privacy (WEP) protocol, but not enabled by default. WEP does have som
e holes in securitynya, and an experienced hacker would be able to open it, but it was still better than no encryption at all. Be sure to set the WEP authentication method to "shared key" rather than "open system". To "open system", he does not encrypt data, but only authenticate the client. Change the WEP key as often as possible, and use 128-bit WEP compared with the 40-bit.
2. Use strong encryption.
Because of the weakness weaknesse s in WEP, it is recommended to use Wi-Fi Protected Access (WPA) as well. To use WPA, WAP had to the support. The client side must also be able to support WPA tsb.
3. Change the default administrator password.
Most manufacturers use the same administrative password for all their products WAP. The default password is generally known by the hackers, which can then be used to change the settings on your WAP. The first thing to do in the WAP configuration is changing the default password tsb. Use at least 8 characters, a combination of letters and numbers, and do not use the word word in the dictionary.
4. Turn off SSID Broadcasting.
Service Set Identifier (SSID) is the name of our wireless network. By default, the SSID of the WAP will be broadcast. This will make users easy to find the network they will be, because the SSID will appear in the list of available networks that have the wireless client. If the SSID is turned off, the user must first know a bit SSID can be connected with the network.
5. Turn off the WAP when not in use.
The way this one looks very simple, but some companies or individuals do it. If we have users who only connect at a certain moment, there is no reason to run a wireless network at all times and provide the opportunity for intruders in an automated to carry out his evil intentions. We can turn off access point when not in use.
6. Change the default SSID.
Factory default SSID provided. Usefulness of the SSID broadcast is switched off to prevent anyone else know the name of our network, but if you still use the default SSID, will not be difficult to guess the SSID of our network.
7. Wearing MAC filtering.
Most WAP (not the cheap cheap of course) will permit us to use the filter media access control (MAC). This means we can make a "white list" of the
computer computer that can access our wireless network, based on the MAC or physical addresses on each network card pc. Connections from the MAC is not on the list will be rejected.
This method is not always safe, because it is still possible for a hacker to do packet sniffing that we transmit via the wireless network and get a valid MAC address from one user, and then use it to make spoof. But the MAC filtering will make a intruders in an automated trouble is still not really good candidate.
8. Isolate the wireless network from the LAN.
To protect the cable from the internal network threats coming from the wireless network, it is important to make wireless DMZ or perimeter network is isolated from the LAN. It means installing a firewall between the wireless network and LAN.
And for the wireless client that requires access to the internal network, he must first authenticate to the RAS server or use a VPN. This provides extra layers for protection.
9. Control the wireless signal
802.11b WAP to emit waves of about 300 feet. But this distance can be added by replacing the antenna with a better one. By using high-gain antenna, we can get more distance. Directional antenna will transmit the signal to a particular direction, and the radiance is not circular as in Omnidirectional antenna that usually found in standard WAP package. In addition, by selecting the appropriate antenna, we can control distance and direction signals to protect themselves from intruders in an automated. In addition, there are some WAP settings that can be in signal strength and direction through WAP config tsb.
10. Emits waves at a different frequency.
One way to hide from hackers who often use technologies 802.11b / g, which is more popular is to use 802.11a. Because 802.11a works on a different frequency (ie at the frequency of 5 GHz), NIC is designed to work on a popular
technology will not be able to catch the signal tsb.
good luck hope it can be useful for you all, but do not forget to give your comments on this post or other posts.
