Network Info comprises of information regarding WinSock, Connections, NDIS and
IP Address. You can view the possible connections to the network, and find the
currently active connection, if any. The NDS (Network Driver Specification) drivers can
be viewed along with the currently active driver. Under the IP Address node you can view
the host name, host IP Address and the peer IP address, if any.
<BR> <BR>
<B>Finger</B>
<BR>
Displays information about a user on a specified system running the
Finger service. The output of this command varies based on the remote system. You can retrieve either information specific
to a single user or multiple users. If no User Name is specified, all logged in users and their login details are displayed.
<BR> <BR>
<B>Whois</B>
<BR>
Whois displays the directory information for a single or multiple users. It can usually be used to get the phone number,
email address, and any other user specific information that is available.
<BR> <BR>
<B>NS Lookup</B>
<BR>
NS Lookup allows users to query Name Servers for information about various hosts
and domains. Using different query types one can get detailed host information regarding
the mail exchange server (MX), the authoritative Name server (NS) and the Canonical name
(CNAME) for an alias.
<BR> <BR>
<B>Ping</B>
<BR>
Ping is used to test the network connectivity with a particular host. Users can specify the number of packets to send
and the timeout value for replies.
<BR> <BR>
<B>Echo</B><BR>
The Echo component can be used to test the state of the network. It sends a packet of data to an Echo server and
receives the same data back from the server.
<BR> <BR>
<B>Subnet Calculator</B>
<BR>
Given the host IP address (Class A, Class B, Class C) of a network, Subnet
Calculator calculates the subnet details according to the number of subnet bits
set.
<BR>
To get the Subnet Details, provide the "Host IP Address" and select the number
of "Subnet Bits" to set and press the "Subnet Details" button. The total "hosts
per subnet" network is shown along with the subnet mask, which is in the form of
an IP Address. The subnet format maps the subnet bits to a subnet mask, in which
'N' represents the network bits, 'S' represents the subnet bits, and 'H' represents
the host bits.
<BR>
To get the subnet details of the Host IP Address, press the "Host Details" button.
The information is displayed in decimal as well as hexadecimal format. The subnet
mask, the network address and the broadcast address of the subnet to which the
host IP address belongs are displayed. The subnet number and the class mask
are also calculated.
<BR>
To get the subnet list press the "Network/Broadcast List" button. The subnet details
such as the number, the network address, and the broadcast address are displayed.
<BR>
To get the IP Address ranges of Class A, Class B and Class C addresses,
press the "General Info" button. This also displays the IP addresses which fall into the
reserved category.
<BR>
<A HREF="NfSubnetEg.htp">Example</A>
<BR> <BR>
<B>Character Generator</B>
<BR>
Character Generator, or CharGen for short, connects to a server and downloads a stream of characters, and calculates the Average
Bytes per Second. Administrators can use this data to get an idea of the network speed.
<BR> <BR>
<B>QOTD</B>
<BR>
QOTD fetches the quote of the day from the specified server.
<BR> <BR>
<B>Port Scanner</B>
<BR>
This component is used to test the TCP services running on a remote host. Users can test a service running on a particular port or on a range of ports.
A list of "Well-Known" ports can also be viewed.
<BR> <BR>
<B>HTTP Fetch</B>
<BR>
HTTP Fetch gets data from a specified URL. The downloaded data can be copied to the clipboard and pasted to other documents.
<BR> <BR>
<B>DayTime</B>
<BR>
DayTime shows the day and time of the specified server.
<BR> <BR>
<B>TFTP Server </B>
<BR>
To start the TFTP service you can tap the "Run" button from the command bar or use the
keyboard combination, Ctrl-R. Once the service is started, it listens for incoming
connections. The TFTP service can support a maximum of ten simultaneous connections.
To stop the TFTP service you can either tap on the "Stop" button from the command bar or
use the keyboard "Escape" key. You can set the working directory, so that all received local
files are stored under this path. The service also supports additional options like Blocksize,
Timeout values and Tsize.
<BR> <BR>
<B>TFTP Client </B>
<BR>
The TFTP client can be used to connect to a TFTP server and "Get" or "Put" files from/to the
server. To "get" a file from a TFTP server, you need to specify the remote file name as well as
the path where this file has to be stored locally. The local file name is optional. To "put" a file on a
remote server, the local file name needs to be specified and the remote file name is optional.
You can specify the timeout and the blocksize values for file get/put operations. The Tsize
option is also supported. Larger timeouts need to be specified if multiple simultaneous
transfers to the same TFTP server are being performed.
