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Thread: DNS/SAMBA problem

  1. #1
    Join Date
    Jan 2007
    Beans
    165

    DNS/SAMBA problem

    I've got a script that backs up a windows client named gaia on the network ( belongs to SWMBO). it has worked for several months but recently stopped. The only thing that has chnaged is that for some reason the DHCP-assigned IP address has changed . I need to tell the server ( ubuntu 12.04 server ) that gaia is at 192.168.2.2

    within the script I want to mount the client
    ie
    mount -t cifs //gaia/mail //mnt/gaia

    when i put this in a script and run it i get an error
    "mount error: could not resolve address for gaia: Unknown error"

    How do i tell it that gaia is at 192.168.2.2 ( used to be 192.168.2.5) ?

    ive added this to resolv.conf :

    root@server2:/mnt# cat /etc/resolv.conf | grep 2
    nameserver 192.168.2.1
    gaia 192.168.2.2
    root@server2:/mnt#


    it is up on the network
    root@server2:/mnt# ping 192.168.2.2 -c4
    PING 192.168.2.2 (192.168.2.2) 56(84) bytes of data.
    64 bytes from 192.168.2.2: icmp_req=1 ttl=128 time=1.39 ms
    64 bytes from 192.168.2.2: icmp_req=2 ttl=128 time=1.29 ms
    64 bytes from 192.168.2.2: icmp_req=3 ttl=128 time=1.30 ms
    64 bytes from 192.168.2.2: icmp_req=4 ttl=128 time=1.27 ms

    --- 192.168.2.2 ping statistics ---
    4 packets transmitted, 4 received, 0% packet loss, time 3004ms
    rtt min/avg/max/mdev = 1.276/1.315/1.390/0.057 ms

    but i cant ping it by name

    root@server2:/mnt# ping gaia -c4
    ping: unknown host gaia
    root@server2:/mnt#

    relevant bit of
    root@server2:/mnt# nmap -O 192.168.2.0/24

    Starting Nmap 5.21 ( http://nmap.org ) at 2012-12-06 21:09 GMT
    Nmap scan report for TACHYON (192.168.2.1)
    Host is up (0.00022s latency).
    Not shown: 999 closed ports
    PORT STATE SERVICE
    80/tcp open http
    MAC Address: 94:44:52:3A:7A:AD (Belkin International)
    Device type: WAP|broadband router
    Running: Belkin embedded, Linksys embedded, Philips embedded, Siemens embedded, Telekom embedded, USRobotics embedded
    OS details: Belkin F6D4630-4 v1 WAP, ADSL modem: Linksys AM300, Philips CGA5722 or SNA6500, Siemens Gigaset SX541, T-Sinus 111, or USRobotics USR9111
    Network Distance: 1 hop

    Nmap scan report for 192.168.2.2
    Host is up (0.011s latency).
    Not shown: 993 filtered ports
    PORT STATE SERVICE
    80/tcp open http
    135/tcp open msrpc
    139/tcp open netbios-ssn
    443/tcp open https
    445/tcp open microsoft-ds
    1947/tcp open unknown
    5357/tcp open unknown
    MAC Address: 00:23:4D:93:8F:C8 (Hon Hai Precision Ind. Co.)
    Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
    Device type: general purpose
    Running: Microsoft Windows Vista|2008|7
    OS details: Microsoft Windows Vista SP0 or SP1, Server 2008 SP1, or Windows 7
    Network Distance: 1 hop

  2. #2
    Join Date
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    Xubuntu 14.04 Trusty Tahr

    Re: DNS/SAMBA problem

    that name/IP needs to be added to your hosts file I believe
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  3. #3
    Join Date
    Nov 2008
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    Metro Boston
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    Kubuntu 14.04 Trusty Tahr

    Re: DNS/SAMBA problem

    Either you need to fix your DNS server so it knows the new address for gaia, or you can add a static entry to /etc/hosts with the new address.

    If gaia is a server, it should have a static address. You can either do that in /etc/network/interfaces or by reserving an address on the router based on gaia's MAC address.
    If you ask for help, please have the courtesy to check for responses and thank the people who helped you.

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