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Full Discussion: How to get IP of computer assigned by DHCP?
Special Forums IP Networking How to get IP of computer assigned by DHCP? Post 302883346 by corrado33 on Monday 13th of January 2014 11:27:47 AM
Old 01-13-2014
How to get IP of computer assigned by DHCP?
I have a computer at work with no control over the network settings. We have to pay for a static IP so that won't happen. I'm running an SSH server so I can connect back and analyze data when I'm sitting in boring classes.

I want to know how to get the IP of this machine when I'm on the same network.

Previously what I would do is either grab it before I leave the office, or I set up a script in mail that would email me the IP address if I sent a very specific e-mail to myself.

I'm not very good with networking, and to make matters worse, I'm on an iPad with no true access to a console.

No, this is not illegal, I'm friends with the IT guy on the floor, and he says it's perfectly fine. However, I don't think running a network scan would go unnoticed.

So, what is the best way to do this? My e-mail script only works if the computer isn't asleep, and it especially doesn't work if I forget what to e-mail myself.

Any help?

I could potentially connect to my home server, VPN into the network, then run a bash script that looks for my server but... I don't think that's a great idea.
 

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LEARN ABOUT DEBIAN

gnunet-nat-server

GNUNET-NAT-SERVER(1)					      General Commands Manual					      GNUNET-NAT-SERVER(1)

NAME

       gnunet-nat-server - help GNUnet setup test network setup with NAT

SYNOPSIS

       gnunet-nat-server [options] PORT

DESCRIPTION

       Normal  GNUnet end-users should not concern themselves with gnunet-nat-server.  In fact, distributions are encouraged to consider not ship-
       ping it at all.	Running gnunet-nat-server's is similar to running hostlist servers: it is a special service to the community with  special
       requirements and no benefit to those running the service.

       This  program  will listen on the specified PORT for incoming requests to test a peer's network connectivity.  Incoming requests can ask it
       to connect to a given IPv4 address (and port) using TCP or UDP and to send a 2-byte test message using the specified address.  The  program
       can  also  be asked to send a "fake" ICMP response message to a given IPv4 address (for autonomous NAT traversal --- see the description in
       the respective research paper).

       The idea is that gnunet-nat-server will be run on some trusted hosts with unrestricted connectivity to allow GNUnet  users  to  test  their
       network	configuration.	 As  written, the code allows any user on the Internet to cause the gnunet-nat-server to send 2-bytes of arbitrary
       data to any TCP or UDP port at any address.  We believe that this is generally harmless.

       When running gnunet-nat-server, make sure to use a configuration that disables most NAT options but enables  'enable_nat_client'  and  sets
       'internal_address'  to  the  global  IP address of your local host.  Also, the gnunet-helper-nat-client should be installed locally and run
       with root privileges (SUID), otherwise the gnunet-nat-server will not work properly.

       Note that gnunet-nat-server could be run via gnunet-arm but typically is not.  Also, the name of the host and port  that  gnunet-nat-server
       is  run on should be specified in the NATSERVER option in the [setup] section of the configuration file of hosts that are supposed to auto-
       configure with this server.

OPTIONS

       -c FILENAME,  --config=FILENAME
	      Use the configuration file FILENAME.

BUGS

       Report bugs by using Mantis <https://gnunet.org/bugs/> or by sending electronic mail to <gnunet-developers@gnu.org>

SEE ALSO

       gnunet-transport(1)

GNUnet								    25 Feb 2012 					      GNUNET-NAT-SERVER(1)
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