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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 302883530 by corrado33 on Wednesday 15th of January 2014 11:34:06 AM
Old 01-15-2014
I think if I "ssh 'hostname" that might work. I guess I could check through the vpn.

For those of you confused here is what's going on.

I have a Mac desktop that I use for my day to day work. Sometimes I want to ssh into it from my iPad over wifi to do some data analysis, so I have an ssh server running. Just the standard ssh server that ships with os X, nothing special. Only I have permission etc.

However, the intranet at work is DHCP based. I cannot request a static IP because it costs money (stupid I know.)

Sometimes I forget to grab my IP before I leave the office, so if I want to ssh into the computer I can't, because of DHCP. So my original question was what is the best way to get that IP if I am not currently in front of the computer.

I did not know you could use the hostname of a computer as the address essentially. As I stated before, I'm terrible at networking.

With that said, it iSSH on the ipad does not like using the hostname over a VPN (I'm testing it from home currently), but using the IP works perfectly.

Putty on XP says "host does not exist" when connected through the VPN even when I copy and paste the hostname from the result of the "hostname" command. Putting the IP into putty works just fine.

---------- Post updated 01-15-14 at 12:34 PM ---------- Previous update was 01-14-14 at 10:08 PM ----------

Sorry for the double post, I thinking I found some more hints about my problem.

My ip when I'm on the wireless network is aaa.bbb.100.### and the ip of the server is aaa.bbb.185.### where aaa and bbb are the same. So, in my limited knowledge of networking, I'd say that whenever I feed my ipad a hostname to try to connect to, it doesn't know where it is because it's on a slightly different network, but when I give it an ip, the ipad knows exactly where to look for the computer to find it.

I think I may be able to fix it by adding another DNS server in my network settings? But I don't know what to put. Or it has something to do with the hostname. The hostname I am using is something-computer.local. Can the .local be changed to tell the ipad to look somewhere else?
Last edited by corrado33; 01-14-2014 at 10:18 PM..
 

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LEARN ABOUT X11R4

dhcpmgr

dhcpmgr(1M)						  System Administration Commands					       dhcpmgr(1M)

NAME

       dhcpmgr - graphical interface for managing DHCP service

SYNOPSIS

       /usr/sadm/admin/bin/dhcpmgr

DESCRIPTION

       dhcpmgr	is a graphical user interface which enables you to manage the Dynamic Host Configuration Protocol (DHCP) service on the local sys-
       tem. It performs the functions of the dhcpconfig, dhtadm, and pntadm command line utilities. You must be root to use dhcpmgr.  The  dhcpmgr
       Help, available from the Help menu, contains detailed information about using the tool.

USAGE

       You can perform the following tasks using dhcpmgr:

       Configure DHCP service

	   Use dhcpmgr to configure the DHCP daemon as a DHCP server, and select the data store to use for storing network configuration tables..

       Configure BOOTP relay service

	   Use dhcpmgr to configure the DHCP daemon as a BOOTP relay.

       Manage DHCP or BOOTP relay service

	   Use dhcpmgr to start, stop, enable, disable or unconfigure the DHCP service or BOOTP relay service, or change DHCP server parameters.

       Manage DHCP addresses

	   Use dhcpmgr to add, modify, or delete IP addresses leased by the DHCP service.

       Manage DHCP macros

	   Use dhcpmgr to add, modify or delete macros used to supply configuration parameters to DHCP clients.

       Manage DHCP options

	   Use dhcpmgr to add, modify or delete options used to define parameters deliverable through DHCP.

       Convert to a new DHCP data store

	   Use	dhcpmgr  to  configure the DHCP server to use a different data store, and convert the DHCP data to the format used by the new data
	   store.

       Move DHCP data to another server

	   Use dhcpmgr to export data from one Solaris DHCP server and import data onto another Solaris DHCP server.

EXIT STATUS

       The following exit values are returned:

       0	       Successful completion.

       non-zero        An error occurred.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWdhcm			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       dhcpconfig(1M), dhtadm(1M), pntadm(1M), in.dhcpd(1M), dhcpsvc.conf(4), dhcp_network(4), dhcptab(4), attributes(5), dhcp(5), dhcp_modules(5)

       Solaris DHCP Service Developer's Guide

       System Administration Guide: IP Services

SunOS 5.10							    13 Mar 2001 						       dhcpmgr(1M)
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