Comment 4 for bug 1510445

So amending the 127.0.0.1 line to "127.0.0.1 <hostname> <FQDN>"in /etc/hosts does allow Jenkins to start. If I don't include the FQDN, then I get the below in the log, which is troubling.

Oct 30, 2015 3:10:29 PM javax.jmdns.impl.constants.DNSRecordClass classForIndex
WARNING: Could not find record class for index: -1
Oct 30, 2015 3:10:29 PM javax.jmdns.impl.DNSIncoming readAnswer
SEVERE: Could not find record class. domain: ff4d45a8-2da7-4325-8ce4-6a788f6078a7-machine-.6-c-ubuntu-oddbloke-internal^Elocal^@^@^A^A^@^@^N^P^@^D
<CC><80>^F. type: TYPE_IGNORE index 0
dns[response,10.240.0.6:5353, length=113, id=0x0, flags=0x8400:r:aa]
   0: 0000840000000001 000000004f6a756a 752d666634643435 61382d326461372d ........ ....Ojuj u-ff4d45 a8-2da7-
  20: 343332352d386365 342d366137383866 3630373861372d6d 616368696e652d31 4325-8ce 4-6a788f 6078a7-m achine-1
  40: 362d632d7562756e 74752d6f6464626c 6f6b652d696e7465 726e616c056c6f63 6-c-ubun tu-oddbl oke-inte rnal.loc
  60: 616c000001800100 000e1000040af000 06 al...... ........ .