How to find which host a VM is running on?

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Operating Systems Linux Red Hat How to find which host a VM is running on?

07-07-2014

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How to find which host a VM is running on?

We have quite a few Linux VMs running (several hundred). Some are running in VMware and some are running on Citrix XenServer.

I know that it is possible, for example, to go into vSphere and search for the host name. But there are times where it is not found for whatever reason and I want to log into the guest and see host what it thinks it is running on.

Does anyone know a way for either of the above to find out the host that is running a particular guest from the Linux guest OS?

I used to be able to do this with HP-UX HPVM by installing the vm toolbox onto the guest. And with Solaris sparse root zones I used to be able to tell by looking at the arp cache. I'm just checking if there is any way at all to do something similar with VMware or XenServer.

keelba

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LEARN ABOUT HPUX

ypset

ypset(1M)																 ypset(1M)

NAME

       ypset - bind to particular Network Information Service server

SYNOPSIS

       host] domain] server

   Remarks
       The  Network  Information  Service  (NIS) was formerly known as Yellow Pages (YP).  Although the name has changed, the functionality of the
       service remains the same.

DESCRIPTION

       tells to get Network Information Service (NIS) services for the specified domain from the process running on  server  (see  ypserv(1M)  and
       ypbind(1M)).  server is the NIS server that the NIS client binds to, and is specified as either a host name or an IP address.  If server is
       down or is not running this is not discovered until a local NIS client process tries to obtain a binding for the domain.  The  daemon  then
       tests  the  binding  set  by If the binding cannot be made to the requested server, attempts to rebind to another server in the same domain
       present in the ypservers file.

       NOTE: In order to run must be initiated with the or options.  For more information on how to initiate see ypbind(1M).

       The command is useful for binding a client node that is not on a broadcast network.  If a client node exists on a broadcast  network  which
       has no NIS server running, and if there is a network with one running that is available via a gateway, can establish a binding through that
       gateway.  It is also useful for debugging NIS client applications such as when a NIS map exists only at a single NIS server.

       In cases where several hosts on the local net are supplying NIS services, it is possible for to rebind to  another  host,  even	while  you
       attempt	to find out if the operation succeeded.  For example, typing followed by and receiving the reply may be confusing.  It could occur
       when host1 does not respond to because its process is not running or is overloaded, and host2, running gets the binding.

       The server is the NIS server to bind to, specified as either a host name or an IP address.

       Refer to ypfiles(4) and ypserv(1M) for an overview of the Network Information Service.

   Options
       recognizes the following options and command-line arguments:

	      Bind	     server for the Version 2 NIS protocol.

	      Set the binding on
			     host instead of locally.  host can be specified as a host name or an IP address.

	      Use	     domain instead of the default domain returned by (see domainname(1)).

DIAGNOSTICS

       The user is not root, or ypbind was run without the
	      flags.  See ypserv(1M) for explanations of the flags.

       The user is not root, or ypbind was run without one of the
	      flags.  See ypserv(1M) for explanations of the flags.

WARNINGS

       Starting with ONCplus version B.11.31.02, the NIS Version 1 protocol is no longer available.

AUTHOR

       was developed by Sun Microsystems, Inc.

SEE ALSO

       domainname(1), ypwhich(1), ypserv(1M), ypfiles(4).

																	 ypset(1M)