Magic 8-ball (i.e., logcheck on ns1.linuxmafia.com) says:
System Events =-=-=-=-=-=-= May 30 10:05:36 linuxmafia named[11750]: zone balug.org/IN: serial number (1558725628) received from master 198.144.194.238#53 < ours (1558799284) May 30 10:30:43 linuxmafia named[11750]: zone sf-lug.org/IN: serial number (1558622463) received from master 198.144.194.238#53 < ours (1558799278) May 30 10:32:42 linuxmafia named[11750]: zone balug.org/IN: serial number (1558725628) received from master 198.144.194.238#53 < ours (1558799284) May 30 10:57:43 linuxmafia named[11750]: zone balug.org/IN: serial number (1558725628) received from master 198.144.194.238#53 < ours (1558799284)
Er?
Michael, O Great Oracle of the DNS master, before I go expunging the local cached zone on ns1.linuxmafia.com so as to converge in the master, any thoughts or desire to act on your end? Normally, I would expect the current situation to be _strenuously avoided_ by never taking S/Ns in a retrograde direction on a zone's DNS master, so I infer that investigation may be in order (or at least brief discussion).