Use of Ping, Netstat, nslookup, telnet for information about hacking

ping [-t] [-a] [-n count] [-l size] [-f] [-i TTL] [-v TOS]
[-r count] [-s count] [[-j host-list] | [-k host-list]]
[-w timeout] target_name




-t Ping the specified host until stopped.
To see statistics and continue - type Control-Break;
To stop - type Control-C.
-a Resolve addresses to hostnames.
-n count Number of echo requests to send.
-l size Send buffer size.
-f Set Don't Fragment flag in packet.
-i TTL Time To Live.
-v TOS Type Of Service.
-r count Record route for count hops.
-s count Timestamp for count hops.
-j host-list Loose source route along host-list.
-k host-list Strict source route along host-list.
-w timeout Timeout in milliseconds to wait for each reply.
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TELNET
telnet [-a][-e escape char][-f log file][-l user][-t term][host [port]]
-a Attempt automatic logon. Same as -l option except uses
the currently logged on user's name.
-e Escape character to enter telnet client prompt.
-f File name for client side logging
-l Specifies the user name to log in with on the remote system.
Requires that the remote system support the TELNET ENVIRON option.
-t Specifies terminal type.
Supported term types are vt100, vt52, ansi and vtnt only.
host Specifies the hostname or IP address of the remote computer
to connect to.
port Specifies a port number or service name.
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NETSTAT [-a] [-b] [-e] [-n] [-o] [-p proto] [-r] [-s] [-v] [interval]

-a Displays all connections and listening ports.
-b Displays the executable involved in creating each connection or
listening port. In some cases well-known executables host
multiple independent components, and in these cases the
sequence of components involved in creating the connection
or listening port is displayed. In this case the executable
name is in [] at the bottom, on top is the component it called,
and so forth until TCP/IP was reached. Note that this option
can be time-consuming and will fail unless you have sufficient
permissions.
-e Displays Ethernet statistics. This may be combined with the -s
option.
-n Displays addresses and port numbers in numerical form.
-o Displays the owning process ID associated with each connection.
-p proto Shows connections for the protocol specified by proto; proto
may be any of: TCP, UDP, TCPv6, or UDPv6. If used with the -s
option to display per-protocol statistics, proto may be any of:
IP, IPv6, ICMP, ICMPv6, TCP, TCPv6, UDP, or UDPv6.
-r Displays the routing table.
-s Displays per-protocol statistics. By default, statistics are
shown for IP, IPv6, ICMP, ICMPv6, TCP, TCPv6, UDP, and UDPv6;
the -p option may be used to specify a subset of the default.
-v When used in conjunction with -b, will display sequence of
components involved in creating the connection or listening
port for all executables.
interval Redisplays selected statistics, pausing interval seconds
between each display. Press CTRL+C to stop redisplaying
statistics. If omitted, netstat will print the current
configuration information once.
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The following are the IP utilities available in Windows that help in finding out the information about IP Hosts and domains.These are the basic IP Hacking Commands that everyone must know!

NOTE: The term Host used in this article can also be assumed as a Website for simple understanding purpose.

1. PING

PING is a simple application (command) used to determine whether a host is online and available.PING command sends one or more ICMP Echo messages to a specified host requesting a reply.The receiver (Target Host) responds to this ICMP Echo message and returns it back to the sender.This confirms that the Host is online and available.Otherwise the host is said to be unavailable.

Syntax:
C:>ping gohacking.com

2. TELNET
Telnet command is used to connect to a desired host on a specified port number.For example
Syntax:
C:>telnet yahoo.com 25
C:>telnet yahoo.com

NOTE: The default port number is 23.When the port number is not specified the default number is assumed.
Telnet Hacking is explained in detail in the following post.
How To Send Fake Email

3. NSLOOKUP
Many times we think about finding out the IP address of a given site.Say for example google.com,yahoo.com,microsoft.com etc.But how to do this? For this there are some websites that can be used to find out the IP address of a given site.But in Windows we have an inbuilt tool to do this job for us.It is nslookup.Yes this tool can be used for resolving a given domain name into it’s IP address (determine the IP of a given site name).Not only this it can also be used for reverse IP lookup.That is if the IP address is given it determines the corresponding domain name for that IP address.

Syntax:
C:>nslookup google.com

4. NETSTAT

The netstat command can be used to display the current TCP/IP network connections.For example the following netstat command displays all connections and their corresponding listening port numbers.

Eg: C:>netstat -a

This command can be used to determine the IP address/Host names of all the applications connected to your computer.If a hacker is connected to your system even the hacker’s IP is displayed.So the netstat command can be used to get an idea of all the active connections to a given system.