Command Prompt
is the heart of windows and with a
technical point of view, command prompt is the only good thing in windows for a
techie. Command Prompt gives you a feel of how things work in the back end of
windows. For example, if we copy and paste using usual right click feature we
don't get to know what is happening behind the buttons to make copy and paste
possible. But if we copy and paste using command prompt, we get to know how
things are done.
This screenshot shows
an example to copying contents of "functionallog.txt" to a
new file "android.txt".
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When someone starts learning about computers and hacking,
the priority should be to gain a firm hold on command prompt as command is very
powerful and allows you to do a lot of stuff. Now I'll talk about some of the
commands of command prompt which a hacker should surely know. Before trying
these commands, make sure you are running command prompt as the
administrator.(right click on cmd > run as administrator)
1. ipconfig:
ifconfig is a very basic command which tells the IP(Internet Protocol)
address of your machine if you are connected to the internet. Other
information such as default gateway, subnet mask etc. are also displayed.
This command is similar to ifconfig command in linux systems.
Syntax: ipconfig
Syntax: ipconfig
2. Ping:
Ping command is
used to check if a host is up or not. It sends 32 bytes of data to the host
whom we want to check, if the reply comes from the host, it means that the host
is up.
Syntax: ping xxx.xxx.xxx.xxx (where xxx.xxx.xxx.xxx is the ip you want to check).
Syntax: ping xxx.xxx.xxx.xxx (where xxx.xxx.xxx.xxx is the ip you want to check).
Ping command can also be used
to check the IP Address of website by pinging them and you can use that IP
Address to open that site too by putting it on the URL box.
Syntax: ping thecyberelite.blogspot.com
Syntax: ping thecyberelite.blogspot.com
3. Telnet:
Telnet is a command line tool by microsoft which is used to establish
connection remote servers. Telnet has been used widely for hacking where
attackers used to establish remote connection to victim pc when the ports of
the victim system where open. By default telnet operates on port 23. Telnet is
not available in the windows system, you have to enable it manually. To enable
telnet on windows follow the following steps:
- Open up control panel and select system and security.
- Select "programs" option from left side.
- In program and features section click on "turn windows features on or off".
- A menu will open up and from there select check the option "telnet click" and "telnet server".
If you know the ip of a person, you can gain access to
his system using telnet. To open telnet window, type "telnet"(without
quotes) in the command prompt. Here is an example of a simple telnet command
used to open a connection.
Syntax: o
xxx.xxx.xxx 171 (o: means "open", 23: default port for telnet)
Various other commands of telnet can also be used once the
connection is established to the client machine. Simple type "help"
in the telnet windows to see other options.
4. ARP:
"arp" stands for Address Resolution Protocol and this command is used
to monitor the network stats and connections. Address Resolution Protocol means
that it link ip address to physical address or mac address. ARP command comes
handy when you are in a school, college, office network. This command is
available by simply typing "arp" in command prompt.
Syntax: arp -a (This command displays a list of current ARP
entries)
Syntax:
arp -d xxx.xxx.xxx.xxx(This command deletes a host specified by you from
network, here xxx.xxx.xxx.xxx is the specified host).
5. nslookup:
This
is a very useful command which you name of your domain and it's ip address.
Syntax: nslookup
You can also find information about an ip in using the same
server in your netowrk by just simply typing name of the ip in the nslookup
window.
6. Netstat:
Netstat command gives you information about your internet connections. Netstat
command gives a list of active connections. This command is very useful and if
someone has RAT Ed
your pc, then you can detect it by this command as it would display the
connection of RAT being made with it's host.
Syntax: netstat
Here Protocol used
by the connection, foreign address and the state of the connection are
displayed.
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If you suspect some connection then you can always see what
is causing that connection by typing the following command : netstat -b (this
would display the executable involved in creating that connection)
The pointed .exe's
are the open which are creating a connection.
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If you want to know statistics of each protocol, then your
can try this command: netstat -s
Other netstat commands can be seen by typing "netstat
help" (exclude commas).
With this, I conclude this article. I hope this helps people
new to command prompt and renews the memory of ones already using it :)
