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Asked: 2018-03-17 09:50:14 +0800 CST

To Find NFS Server IP - 16.04

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Let suppose, my admin has configured a NFS server( he is being HOST) in a domain network 192.168.1.0.

I am being a member of the same domain 192.168.1.0, would like to setup NFS Client on my laptop.

Consider, that I do not know the NFS server IP on me, so how would I find the NFS server(host) IP now.

networking nfs

2 Answers

  1. Best Answer

    NFS typically use port 2049, so you could scan your network for hosts which have this port open and are listening.

    This can be done for a single host e.g. using nc (netcat) or alternatively telnet:

    nc -zvw3 192.168.1.42 2049
telnet 192.168.1.42 2049

    If these commands succeed (telnet opening a connection and waiting for your input, or nc reporting success instead of connection refused or a timeout), you likely found the NFS.

    Now you can either run the nc command in a loop to try it on all IPs in your subnet...

    for ipaddr in 192.168.1.{1..254} ; do nc -zvw3 $ipaddr 2049 ; done

    which might take a while if many of these addresses are offline, as it will then wait for the timeout (-w3 sets it to 3 seconds) on each of those.

    An alternative might be to install a tool like arp-scan (sudo apt install arp-scan) to find all hosts in your network using

    sudo arp-scan --localnet

    first, and then scan their NFS ports manually.

    Or you could install an all-in-one port scanner like nmap and use that one.

    The obvious solution is probably to grab the phone and simply ask your admin for the IP though...

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  2. You can perhaps scan for all internal IP’s and get a list of all alive hosts with their corresponding hostnames...

    You can do this easily on Linux, with a GUI application such as Angry IP scanner

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