[lugs] Pinging shows unknown host

[vriztll at hotmail.com (Vriz)]

Hi,

I'm using a private LAN network. It's not going out to anywhere and I presume that should be alright.
Are there other possible solutions to this problem? 
  ----- Original Message ----- 
  From: Mathias Koerber 
  To: Vriz ; t - DCLUG ; t - Singapore LUG ; zt - Boston Linux Mail List ; zt - New York Linux User Grp ; zt - Northern Virginia LUG 
  Sent: Friday, January 18, 2002 3:54 PM
  Subject: RE: [lugs] Pinging shows unknown host


  Who told you you could use the domainname test.com?
  It's not reserved for testing or anyone's use, it actually belongs to
  someone. While this may not be your immediate problem, it
  sufficiently obscures what may be going on.
   
  Could it be that your Linux system is actually querying the nameservers for
  the actual owner of test.com and coming up empty (because maybe they don't
  have the name you are using)?

  Registrant:
  Test.com, Inc (TEST38-DOM)
     1501 Euclid Ave., Suite 407
     Cleveland, OH 44115
     US

     Domain Name: TEST.COM

     Administrative Contact, Technical Contact, Billing Contact:
        Witt, Andrew  (AWE264)  ajw at TEST.COM
        Test.com, Inc.
        1501 Euclid Ave., Suite 407
        Cleveland, OH  44115
        US
        216-502-1052 216-502-0060

     Record last updated on 03-Jan-2002.
     Record expires on 19-Jun-2003.
     Record created on 18-Jun-1997.
     Database last updated on 17-Jan-2002 13:49:00 EST.

   
    -----Original Message-----
    From: Vriz [mailto:vriztll at hotmail.com]
    Sent: Friday, January 18, 2002 3:33 PM
    To: t - DCLUG; t - Singapore LUG; zt - Boston Linux Mail List; zt - New York Linux User Grp; zt - Northern Virginia LUG
    Subject: [lugs] Pinging shows unknown host


    Hi,
     
    I'm connecting to a network with the domain name test.com. My PCs with the windows OS (hostname is pc1 and pc2) could ping each other with their hostname or hostname with domain name. I installed Redhat 7.2 on another system and change the hostname to pc3 by modifying the /etc/hosts and /etc/sysconfig/network files and restarting the PC (another other elegant way to change the hostname using a system command? did I miss out any other files?).
    pc3 could ping pc1 and pc2, but pc1 and pc2 couldn't ping pc3, and shows the unknown host msg. When I type domainname in pc3, it shows none. Therefore, I run domainname test.com on pc3 to set the domainname (is this necessary? I believe so. What files are changed by this command?). I still couldn't ping pc3 from my windows or other linux systems. Could someone help me with this? Thank you.
     
     
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