Many people wonder what connection they have when extending a wireless antenna. We have used Fab-Corp for years and they have a good site on explaining and showing the different connectors if you want to add an antenna. Link
Want to see who is on your wireless? SoftPerfect’s WiFi Guard is freeware that scans your network, both wireless and wired and it also inventories connections on your network.
Before setting up WiFi Guard, inventory your computers, printers, routers, TVs and other devices that use your network. Get each devices’ MAC address. Load WiFi Guard and mark each device as trusted. WiFi Guard’s settings allows you to set a scan interval and to put comments on devices that you know. In the event a new device is connected to your network, you’ll be alerted.
WiFi Guard keeps a history of devices that connect to your network.
Windows 2008 Server has Network Access Protection which is also known as NAP or NPS. This tool serves an administrative purpose to help organizations compare the security level in a computer on the network to the Server 2008’s policies. This comparison helps to determine if the computer is safe enough to join and use the Server. This is another way to help find if the computer’s ‘health’ is adequate as far as policy and the NAP can also analyze both the anti-virus program and if the firewall is installed. In an upcoming series, Windows 2008 Server will be reviewed.
Information on NAP from TechNet
A Virtual Private Network is used to encrypt data from one computer to another. If you need to setup a VPN in Microsoft Windows 7, create a user and shared folder on the host computer. Once this is done, follow these steps-
On the Hosting Computer
1. Go to Control Panel and open Network and Sharing Center.
2. Click on Change adapter settings
3. Press Alt+F and select New Incoming connection…
4. Put a check mark by the user who will have access to this computer or configure a new account by clicking on Add someone… Click Next.
5. Put a check mark on Through the Internet. Click Next.
6. Select the protocols for this connection. Click Allow access.
7. Make note of the Computer name as this will be used by the client to connect to this computer. Click Close.
8. An Incoming Connections icon will be in Network Connections. Your computer is now ready to accept incoming VPN connections.
On the Computer Dialing In
Open up network and sharing center from the Control Panel, and choose Set up a new connection or network.
Use My Internet Connection (VPN)
Type in the IP Address of the Hosting Computer – Click Next (leave the user information blank to be safe)
You will now have a small icon on your network icon (by the time) that will show the connection. Clicking on this icon allows you to enter your username and password to connect.
Need an excellent program to estimate your wireless bridges from building to building? AlphiMAX provides an excellent online program to estimate your wireless links.
Sign up is easy and fast. The PTP Estimator requires that you have the Latitude and Longitude of both buildings. You can get an estimated Lat. and Long. from Google maps. Find your location on Google maps (you should use a GPS) and right click on the location you want then select “What’s here?” . This will provide the numbers you need. Remember, it is best to use a GPS on each site where you intend to erect an antenna.
Once you have the Lat. and Long., enter the numbers at the top of the online application. Click Estimate.
The interface will show you the terrain, Antenna height, compass information, Fresnel Zone Clearance, approximate altitude, along with product information they provide.
The estimator also offers a 3D view of your project if you have an active subscription.
So what happens when you install a firewall and make sure all operating systems on your home network are fresh installs?
You’ll probably see hits from foreign and U.S. IP addresses trying to make connections to your computers, phones and other devices on your network. You’ll also notice common port numbers in the above log. So what would happen if any of the services and ports were open? It could result in the loss of data.
What should you do? Install a hardware SOHO firewall and keep your OS firewall on. While there are tons of other precautions you also need to take, ultimately this is a form of protection most home users and business users fail to implement.
Credit: Chris Davis
If you try to map a network drive and an error that specifies you are already mapped to the drive but are not, you can try several things.
Stop the Workstation Service (This in turn will stop the Browser Service)
Restart BOTH services
Try to map the drive
Another fix may be to run the following from a command prompt.
net use * /d /y
NET USE /persistent:no
arp -d *
This can be put into a batch file as a tool. Open notepad and copy and paste the following:
net stop workstation
net start workstation
net start browser
net use * /d /y
NET USE /persistent:no
arp -d *
Save the file as dumpcache.bat (be sure to change the extension to all).
You can now run this in an administrative command prompt window.