--- loncom/lonnet/perl/lonnet.pm	2021/01/17 01:58:56	1.1438
+++ loncom/lonnet/perl/lonnet.pm	2021/02/08 14:50:53	1.1442
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.1438 2021/01/17 01:58:56 raeburn Exp $
+# $Id: lonnet.pm,v 1.1442 2021/02/08 14:50:53 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1445,6 +1445,15 @@ sub spare_can_host {
             $canhost = 0;
         }
     }
+    if ($canhost) {
+        if (ref($defdomdefaults{'offloadoth'}) eq 'HASH') {
+            if ($defdomdefaults{'offloadoth'}{$try_server}) {
+                unless (&shared_institution($udom,$try_server)) {
+                    $canhost = 0;
+                }
+            }
+        }
+    }
     if (($canhost) && ($uint_dom)) {
         my @intdoms;
         my $internet_names = &get_internet_names($try_server);
@@ -2155,10 +2164,19 @@ sub get_dom {
     }
     if ($udom && $uhome && ($uhome ne 'no_host')) {
         my $rep;
-        if ($namespace =~ /^enc/) {
-            $rep=&reply("encrypt:egetdom:$udom:$namespace:$items",$uhome);
+        if (grep { $_ eq $uhome } &current_machine_ids()) {
+            # domain information is hosted on this machine
+            my $cmd = 'getdom';
+            if ($namespace =~ /^enc/) {
+                $cmd = 'egetdom';
+            }
+            $rep = &LONCAPA::Lond::get_dom("$cmd:$udom:$namespace:$items");
         } else {
-            $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
+            if ($namespace =~ /^enc/) {
+                $rep=&reply("encrypt:egetdom:$udom:$namespace:$items",$uhome);
+            } else {
+                $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
+            }
         }
         my %returnhash;
         if ($rep eq '' || $rep =~ /^error: 2 /) {
@@ -2689,6 +2707,9 @@ sub get_domain_defaults {
         if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') {
             $domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'};
         }
+        if (ref($domconfig{'usersessions'}{'offloadoth'}) eq 'HASH') {
+            $domdefaults{'offloadoth'} = $domconfig{'usersessions'}{'offloadoth'};
+        }
     }
     if (ref($domconfig{'selfenrollment'}) eq 'HASH') {
         if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {
@@ -12407,7 +12428,7 @@ sub EXT {
         }
     } elsif ($realm eq 'client') {
         if ($space eq 'remote_addr') {
-            return $ENV{'REMOTE_ADDR'};
+            return &get_requestor_ip();
         }
     }
     return '';
@@ -14217,9 +14238,12 @@ sub default_login_domain {
 }
 
 sub shared_institution {
-    my ($dom) = @_;
+    my ($dom,$lonhost) = @_;
+    if ($lonhost eq '') {
+        $lonhost = $perlvar{'lonHostID'};
+    }
     my $same_intdom;
-    my $hostintdom = &internet_dom($perlvar{'lonHostID'});
+    my $hostintdom = &internet_dom($lonhost);
     if ($hostintdom ne '') {
         my %iphost = &get_iphost();
         my $primary_id = &domain($dom,'primary');