--- loncom/lond	2011/05/13 02:58:02	1.472
+++ loncom/lond	2011/05/14 15:47:01	1.473
@@ -2,7 +2,7 @@
 # The LearningOnline Network
 # lond "LON Daemon" Server (port "LOND" 5663)
 #
-# $Id: lond,v 1.472 2011/05/13 02:58:02 raeburn Exp $
+# $Id: lond,v 1.473 2011/05/14 15:47:01 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -60,7 +60,7 @@ my $DEBUG = 0;		       # Non zero to ena
 my $status='';
 my $lastlog='';
 
-my $VERSION='$Revision: 1.472 $'; #' stupid emacs
+my $VERSION='$Revision: 1.473 $'; #' stupid emacs
 my $remoteVERSION;
 my $currenthostid="default";
 my $currentdomainid;
@@ -421,7 +421,8 @@ sub ReadManagerTable {
 
    my $tablename = $perlvar{'lonTabDir'}."/managers.tab";
    if (!open (MANAGERS, $tablename)) {
-       if (&loncapa_dns_server()) {
+       my $hostname = &Apache::lonnet::hostname($perlvar{'lonHostID'});
+       if (&Apache::lonnet::is_LC_dns($hostname)) {
            &logthis('<font color="red">No manager table.  Nobody can manage!!</font>');
        }
        return;
@@ -677,7 +678,7 @@ sub PushFile {
 	return "error:$!";
     } else {
 	&logthis('<font color="green"> Installed new '.$tablefile
-		 ."</font>");
+		 ." - transaction by: $clientname ($clientip)</font>");
         my $adminmail = $perlvar{'lonAdmEMail'};
         my $admindom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
         if ($admindom ne '') {
@@ -691,16 +692,12 @@ sub PushFile {
         }
         if ($adminmail =~ /^[^\@]+\@[^\@]+$/) {
             my $msg = new Mail::Send;
-            my $senderaddress =  $perlvar{'lonSysEMail'};
             $msg->to($adminmail);
             $msg->subject('LON-CAPA DNS update on '.$perlvar{'lonHostID'});
-            if ($senderaddress) {
-                 $msg->add('From',$senderaddress);
-            }
             $msg->add('Content-type','text/plain; charset=UTF-8');
             if (my $fh = $msg->open()) {
                 print $fh 'Update to '.$tablefile.' from Cluster Manager '.
-                          $client."\n";
+                          "$clientname ($clientip)\n";
                 $fh->close;
             }
         }
@@ -712,25 +709,6 @@ sub PushFile {
 
 }
 
-sub loncapa_dns_server {
-    my $lonhost = &Apache::lonnet::get_host_ip($perlvar{'lonHostID'});
-    my $hoststable = "$perlvar{'lonTabDir'}/hosts.tab";
-    my $is_dns_server;
-    if (!open(HOSTS,"<$hoststable")) {
-        &logthis('<font color="yellow">Could not open hosts.tab to check for LON-CAPA DNS servers.</font>');
-        while (my $host = <HOSTS>) {
-            chomp($host);
-            $host =~ s/(^\s+|\s+$)//g;
-            if ($host =~ /^\Q^$lonhost\E/) {
-                $is_dns_server = 1;
-                last;
-            }
-        }
-        close(HOSTS);
-    }
-    return $is_dns_server;
-}
-
 #
 #  Called to re-init either lonc or lond.
 #
@@ -6114,6 +6092,7 @@ sub HUPSMAN {                      # sig
 #  a setuid perl script that can be root for us to do this job.
 #
 sub ReloadApache {
+# --------------------------- Handle case of another apachereload process (locking)
     my $execdir = $perlvar{'lonDaemons'};
     my $script  = $execdir."/apachereload";
     system($script);