--- loncom/loncron	2021/02/01 01:33:17	1.103.2.10
+++ loncom/loncron	2018/10/29 02:57:30	1.112
@@ -2,7 +2,7 @@
 
 # Housekeeping program, started by cron, loncontrol and loncron.pl
 #
-# $Id: loncron,v 1.103.2.10 2021/02/01 01:33:17 raeburn Exp $
+# $Id: loncron,v 1.112 2018/10/29 02:57:30 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -37,16 +37,12 @@ use LONCAPA;
 use Apache::lonnet;
 use Apache::loncommon;
 
-use LWP::UserAgent();
-use HTTP::Request();
 use IO::File;
 use IO::Socket;
 use HTML::Entities;
 use Getopt::Long;
-use File::ReadBackwards;
-use File::Copy;
-use Sys::Hostname::FQDN();
-
+use GDBM_File;
+use Storable qw(thaw);
 #globals
 use vars qw (%perlvar %simplestatus $errors $warnings $notices $totalcount);
 
@@ -79,14 +75,14 @@ sub rotate_logfile {
 	rename("$file.2","$file.3");
 	rename("$file.1","$file.2");
 	rename("$file","$file.1");
-    }
+    } 
 }
 
 sub start_daemon {
     my ($fh,$daemon,$pidfile,$args) = @_;
     my $progname=$daemon;
     if ($daemon eq 'lonc') {
-	$progname='loncnew';
+	$progname='loncnew'; 
     }
     my $error_fname="$perlvar{'lonDaemons'}/logs/${daemon}_errors";
     &rotate_logfile($error_fname,$fh,'error logs');
@@ -120,7 +116,7 @@ sub checkon_daemon {
     if ($fh) {
         if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
 	    if (open(DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/$daemon.log|")) {
-	        while (my $line=<DFH>) {
+	        while (my $line=<DFH>) { 
 	            &log($fh,"$line");
 	            if ($line=~/INFO/) { $notices++; }
 	            if ($line=~/WARNING/) { $notices++; }
@@ -131,9 +127,9 @@ sub checkon_daemon {
         }
         &log($fh,"</tt></p>");
     }
-
+    
     my $pidfile="$perlvar{'lonDaemons'}/logs/$daemon.pid";
- 
+    
     my $restartflag=1;
     my $daemonpid;
     if (-e $pidfile) {
@@ -172,6 +168,9 @@ sub checkon_daemon {
 	&log($fh,unlink($pidfile).' - '.
 	    `killall -9 $kadaemon 2>&1`.
 	    '</font><br />');
+        if ($kadaemon eq 'loncnew') {
+            &clean_lonc_childpids();
+        }
 	&log($fh,"<h3>$daemon not running, trying to start</h3>");
 
 	if (&start_daemon($fh,$daemon,$pidfile,$args)) {
@@ -210,10 +209,10 @@ sub checkon_daemon {
 	            close (DFH);
                 }
 	        &log($fh,"</pre></p>");
-	    }
-        }
+            }
+	}
     }
-
+    
     my $fname="$perlvar{'lonDaemons'}/logs/$daemon.log";
     &rotate_logfile($fname,$fh,'logs');
 
@@ -226,34 +225,19 @@ sub log_machine_info {
     my ($fh)=@_;
     &log($fh,'<hr /><a name="machine" /><h2>Machine Information</h2>');
     &log($fh,"<h3>loadavg</h3>");
-
-    my $cpucount;
-    if (open(PIPE,"lscpu |grep '^CPU(s)' 2>&1 |")) {
-        my $info = <PIPE>;
-        chomp($info);
-        ($cpucount) = ($info =~ /^\QCPU(s):\E\s+(\d+)$/);
-        close(PIPE);
-    }
-    if (!$cpucount) {
-        $cpucount = 1;
-    }
-    my %loadtarget = (
-                        error => 4.0*$cpucount,
-                        warn  => 2.0*$cpucount,
-                        note  => 1.0*$cpucount,
-                     );
+	
     open (LOADAVGH,"/proc/loadavg");
     my $loadavg=<LOADAVGH>;
     close (LOADAVGH);
-
+    
     &log($fh,"<tt>$loadavg</tt>");
-
+    
     my @parts=split(/\s+/,$loadavg);
-    if ($parts[1]>$loadtarget{'error'}) {
+    if ($parts[1]>4.0) {
 	$errors++;
-    } elsif ($parts[1]>$loadtarget{'warn'}) {
+    } elsif ($parts[1]>2.0) {
 	$warnings++;
-    } elsif ($parts[1]>$loadtarget{'note'}) {
+    } elsif ($parts[1]>1.0) {
 	$notices++;
     }
 
@@ -261,14 +245,14 @@ sub log_machine_info {
     &log($fh,"<pre>");
 
     open (DFH,"df|");
-    while (my $line=<DFH>) {
-	&log($fh,&encode_entities($line,'<>&"'));
+    while (my $line=<DFH>) { 
+	&log($fh,&encode_entities($line,'<>&"')); 
 	@parts=split(/\s+/,$line);
 	my $usage=$parts[4];
 	$usage=~s/\W//g;
-	if ($usage>90) {
+	if ($usage>90) { 
 	    $warnings++;
-	    $notices++;
+	    $notices++; 
 	} elsif ($usage>80) {
 	    $warnings++;
 	} elsif ($usage>60) {
@@ -285,8 +269,8 @@ sub log_machine_info {
     my $psproc=0;
 
     open (PSH,"ps aux --cols 140 |");
-    while (my $line=<PSH>) {
-	&log($fh,&encode_entities($line,'<>&"'));
+    while (my $line=<PSH>) { 
+	&log($fh,&encode_entities($line,'<>&"')); 
 	$psproc++;
     }
     close (PSH);
@@ -308,7 +292,7 @@ sub start_logging {
     my %simplestatus=();
     my $now=time;
     my $date=localtime($now);
-
+    
 
     &log($fh,(<<ENDHEADERS));
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
@@ -424,12 +408,12 @@ sub recursive_clean_tmp {
                 ($cleaned,$old,$removed) = 
                      &recursive_clean_tmp($innerdir,$cleaned,$old,$removed,$errors);
                 my @doms = &Apache::lonnet::current_machine_domains();
-
+                
                 if (open(my $dirhandle,$fname)) {
                     unless (($innerdir eq 'helprequests') ||
                             (($innerdir =~ /^addcourse/) && ($innerdir !~ m{/\d+$}))) {
                         my @contents = grep {!/^\.\.?$/} readdir($dirhandle);
-                                      join('&&',@contents)."\n";
+                                      join('&&',@contents)."\n";    
                         if (scalar(grep {!/^\.\.?$/} readdir($dirhandle)) == 0) {
                             closedir($dirhandle);
                             if ($fname =~ m{^\Q$perlvar{'lonDaemons'}\E/tmp/}) {
@@ -482,7 +466,7 @@ sub recursive_clean_tmp {
                                 }
                             }
                         } elsif (ref($errors->{failopen}) eq 'ARRAY') {
-                            push(@{$errors->{failopen}},$fname);
+                            push(@{$errors->{failopen}},$fname); 
                         }
                     } else {
                         if (unlink($fname)) {
@@ -508,71 +492,24 @@ sub clean_lonIDs {
     my $cleaned=0;
     my $active=0;
     while (my $fname=<$perlvar{'lonIDsDir'}/*>) {
-        my $now=time;
-        if (-l $fname) {
-            my $linkfname = readlink($fname);
-            if (-f $linkfname) {
-                if ($linkfname =~ m{^$perlvar{'lonIDsDir'}/[^/]+\.id$}) {
-                    my @data = stat($linkfname);
-                    my $mtime = $data[9];
-                    my $since=$now-$mtime;
-                    if ($since>$perlvar{'lonExpire'}) {
-                        if (unlink($linkfname)) {
-                            $cleaned++;
-                            &log($fh,"Unlinking $linkfname<br />");
-                            unlink($fname);
-                        }
-                    }
-                }
-            } else {
-               unlink($fname);
-            }
-        } elsif (-f $fname) {
-            my @data = stat($fname);
-            my $mtime = $data[9];
-            my $since=$now-$mtime;
-            if ($since>$perlvar{'lonExpire'}) {
-                if (unlink($fname)) {
-                    $cleaned++;
-                    &log($fh,"Unlinking $fname<br />");
-                }
-            } else {
-                $active++;
-            }
-        }
+	my ($dev,$ino,$mode,$nlink,
+	    $uid,$gid,$rdev,$size,
+	    $atime,$mtime,$ctime,
+	    $blksize,$blocks)=stat($fname);
+	my $now=time;
+	my $since=$now-$mtime;
+	if ($since>$perlvar{'lonExpire'}) {
+	    $cleaned++;
+	    &log($fh,"Unlinking $fname<br />");
+	    unlink("$fname");
+	} else {
+	    $active++;
+	}
     }
     &log($fh,"<p>Cleaned up ".$cleaned." stale session token(s).</p>");
     &log($fh,"<h3>$active open session(s)</h3>");
 }
 
-# -------------------------------------------------------- clean out balanceIDs
-
-sub clean_balanceIDs {
-    my ($fh)=@_;
-    &log($fh,'<hr /><a name="balcookies" /><h2>Session Tokens</h2>');
-    my $cleaned=0;
-    my $active=0;
-    if (-d $perlvar{'lonBalanceDir'}) {
-        while (my $fname=<$perlvar{'lonBalanceDir'}/*.id>) {
-            my ($dev,$ino,$mode,$nlink,
-                $uid,$gid,$rdev,$size,
-                $atime,$mtime,$ctime,
-                $blksize,$blocks)=stat($fname);
-            my $now=time;
-            my $since=$now-$mtime;
-            if ($since>$perlvar{'lonExpire'}) {
-                $cleaned++;
-                &log($fh,"Unlinking $fname<br />");
-                unlink("$fname");
-            } else {
-                $active++;
-            }
-        }
-    }
-    &log($fh,"<p>Cleaned up ".$cleaned." stale balancer files</p>");
-    &log($fh,"<h3>$active unexpired balancer files</h3>");
-}
-
 # ------------------------------------------------ clean out webDAV Session IDs
 sub clean_webDAV_sessionIDs {
     my ($fh)=@_;
@@ -636,16 +573,16 @@ sub rotate_lonnet_logs {
     print "Checking logs.\n";
     if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
 	open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
-	while (my $line=<DFH>) {
+	while (my $line=<DFH>) { 
 	    &log($fh,&encode_entities($line,'<>&"'));
 	}
 	close (DFH);
     }
     &log($fh,"</pre><h3>Perm Log</h3><pre>");
-
+    
     if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
 	open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
-	while (my $line=<DFH>) {
+	while (my $line=<DFH>) { 
 	    &log($fh,&encode_entities($line,'<>&"'));
 	}
 	close (DFH);
@@ -709,199 +646,35 @@ sub test_connections {
 
 # ------------------------------------------------------------ Delayed messages
 sub check_delayed_msg {
-    my ($fh,$weightsref,$exclusionsref)=@_;
+    my ($fh)=@_;
     &log($fh,'<hr /><a name="delayed" /><h2>Delayed Messages</h2>');
     print "Checking buffers.\n";
     
     &log($fh,'<h3>Scanning Permanent Log</h3>');
 
     my $unsend=0;
-    my $ignored=0;
 
     my %hostname = &Apache::lonnet::all_hostnames();
     my $numhosts = scalar(keys(%hostname));
-    my $checkbackwards = 0;
-    my $checkfrom = 0;
-    my $checkexcluded = 0;
-    my (%bymachine,%weights,%exclusions,%serverhomes);
-    if (ref($weightsref) eq 'HASH') {
-        %weights = %{$weightsref};
-    }
-    if (ref($exclusionsref) eq 'HASH') {
-        %exclusions = %{$exclusionsref};
-        if (keys(%exclusions)) {
-            $checkexcluded = 1;
-            %serverhomes = &read_serverhomeIDs();
-        }
-    }
-
-#
-# For LON-CAPA 1.2.0 to 2.1.3 (release dates: 8/31/2004 and 3/31/2006) any
-# entry logged in lonnet.perm.log for completion of a delayed (critical)
-# transaction lacked the hostID for the remote node to which the command
-# to be completed was sent.
-#
-# Because of this, exclusion of items in lonnet.perm.log for nodes which are
-# no longer part of the cluster from adding to the overall "unsend" count
-# needs additional effort besides the changes made in loncron rev. 1.105.
-#
-# For "S" (completion) events logging in LON-CAPA 1.2.0 through 2.1.3 included
-# "LondTransaction=HASH(hexadecimal)->getClient() :$cmd, where the hexadecimal
-# is a memory location, and $cmd is the command sent to the remote node.
-#
-# Starting with 2.2.0 (released 8/21/2006) logging for "S" (completion) events
-# had sethost:$host_id:$cmd after LondTransaction=HASH(hexadecimal)->getClient()
-#
-# Starting with 2.4.1 (released 6/13/2007) logging for "S" replaced echoing the
-# getClient() call with the result of the Transaction->getClient() call itself
-# undef for completion of delivery of a delayed message.
-#
-# The net effect of these changes is that lonnet.perm.log is now accessed three
-# times: (a) oldest record is checked, if earlier than release date for 2.5.0
-# then (b) file is read backwards, with timestamp recorded for most recent
-# instance of logged "S" event for "update" command without "sethost:$host_id:"
-# then (c) file is read forward with records ignored which predate the timestamp
-# recorded in (b), if one was found.
-#
-# In (c), when calculating the unsend total, i.e., the difference between delayed
-# transactions ("D") and sent transactions ("S"), transactions are ignored if the
-# target node is no longer in the cluster, and also (for "update" commands), if
-# the target node is in the list of nodes excluded from the count, in the domain
-# configuration for this machine's default domain.  The idea here is to remove
-# delayed "update" commands for nodes for which inbound access to port 5663,
-# is blocked, but are still part of the LON-CAPA network, (i.e., they can still
-# replicate content from other nodes).
-#
 
-    my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log","r");
-    if (defined($dfh)) {
-        while (my $line=<$dfh>) {
-	    my ($time,$sdf,$rest)=split(/:/,$line,3);
-            if ($time < 1541185772) {
-                $checkbackwards = 1;
-            }
-            last;
-        }
-        undef $dfh;
-    }
-
-    if ($checkbackwards) {
-        if (tie *BW, 'File::ReadBackwards', "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
-            while(my $line=<BW>) {
-                if ($line =~ /\QLondTransaction=HASH\E[^:]+:update:/) {
-                    ($checkfrom) = split(/:/,$line,2);
-                    last;
-                }
-            }
-            close(BW);
-        }
+    my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log");
+    while (my $line=<$dfh>) {
+	my ($time,$sdf,$dserv,$dcmd)=split(/:/,$line);
+        if ($numhosts) {
+            next unless ($hostname{$dserv});
+        }
+	if ($sdf eq 'F') { 
+	    my $local=localtime($time);
+	    &log($fh,"<b>Failed: $time, $dserv, $dcmd</b><br />");
+	    $warnings++;
+	}
+	if ($sdf eq 'S') { $unsend--; }
+	if ($sdf eq 'D') { $unsend++; }
     }
-    $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log","r");
-    if (defined($dfh)) {
-        while (my $line=<$dfh>) {
-            my ($time,$sdf,$rest)=split(/:/,$line,3);
-            next unless (($sdf eq 'F') || ($sdf eq 'S') || ($sdf eq 'D'));
-            next if (($checkfrom) && ($time <= $checkfrom));
-            my ($dserv,$dcmd);
-            if ($sdf eq 'S') {
-                my ($serva,$cmda,$servb,$cmdb) = split(/:/,$rest);
-                if ($cmda eq 'sethost') {
-                    chomp($cmdb);
-                    $dcmd = $cmdb;
-                } else {
-                    $dcmd = $cmda;
-                }
-                if (($serva =~ /^LondTransaction/) || ($serva eq '')) {
-                    unless (($servb eq '') || ($servb =~ m{^/})) {
-                        $dserv = $servb;
-                    }
-                } else {
-                    $dserv = $serva;
-                }
-            } else {
-                ($dserv,$dcmd) = split(/:/,$rest);
-            }
-            if ($sdf eq 'F') {
-                my $local=localtime($time);
-                &log($fh,"<b>Failed: $time, $dserv, $dcmd</b><br />");
-                $warnings++;
-            }
-            next if ((($dserv eq '') || ($dcmd eq '')) && ($sdf ne 'F'));
-            if ($sdf eq 'S') {
-                if ($dcmd eq 'update') {
-                    if ($hostname{$dserv}) {
-                        if ($exclusions{$serverhomes{$hostname{$dserv}}}) {
-                            $ignored --;
-                        } else {
-                            $unsend --;
-                        }
-                    }
-                    if (exists($bymachine{$dserv})) {
-                        $bymachine{$dserv} --;
-                    } else {
-                        $bymachine{$dserv} = -1;
-                    }
-                } else {
-                    if ($hostname{$dserv}) {
-                        $unsend --;
-                    }
-                }
-            } elsif ($sdf eq 'D') {
-                if ($dcmd eq 'update') {
-                    if ($hostname{$dserv}) {
-                        if ($exclusions{$serverhomes{$hostname{$dserv}}}) {
-                            $ignored ++;
-                        } else {
-                            $unsend ++;
-                        }
-                    }
-                    if (exists($bymachine{$dserv})) {
-                        $bymachine{$dserv} ++;
-                    } else {
-                        $bymachine{$dserv} = 1;
-                    }
-                } else {
-                    if ($hostname{$dserv}) {
-                        $unsend ++;
-                    }
-                }
-            }
-        }
-        undef $dfh;
-        my $nodest = 0;
-        my $retired = 0;
-        my %active;
-        if (keys(%bymachine)) {
-            unless ($checkexcluded) {
-                %serverhomes = &read_serverhomeIDs();
-            }
-            foreach my $key (keys(%bymachine)) {
-                if ($bymachine{$key} > 0) {
-                    if ($hostname{$key}) {
-                        $active{$serverhomes{$hostname{$key}}} += $bymachine{$key};
-                    } else {
-                        $retired ++;
-                        $nodest += $bymachine{$key};
-                    }
-                }
-            }
-        }
-        if (keys(%active)) {
-            &log($fh,"<p>Unsend messages by node, active (undegraded) nodes in cluster</p>\n");
-            foreach my $key (sort(keys(%active))) {
-                &log($fh,&encode_entities("$key => $active{$key}",'<>&"')."\n");
-            }
-        }
-        &log($fh,"<p>Total unsend messages: <b>$unsend</b> for ".scalar(keys(%active))." active (undegraded) nodes in cluster.</p>\n");
-        if (keys(%exclusions) > 0) {
-            &log($fh,"<p>Total incomplete updates <b>$ignored</b> for ".scalar(keys(%exclusions))." degraded nodes in cluster.</p>\n");
-        }
-        if ($retired) {
-            &log($fh,"<p>Total unsent <b>$nodest</b> for $retired nodes no longer in cluster.</p>\n");
-        }
-        if ($unsend > 0) {
-            $warnings=$warnings+$weights{'U'}*$unsend;
-        }
+
+    &log($fh,"<p>Total unsend messages: <b>$unsend</b></p>\n");
+    if ($unsend > 0) {
+        $warnings=$warnings+5*$unsend;
     }
 
     if ($unsend) { $simplestatus{'unsend'}=$unsend; }
@@ -940,13 +713,9 @@ sub check_delayed_msg {
 }
 
 sub finish_logging {
-    my ($fh,$weightsref)=@_;
-    my %weights;
-    if (ref($weightsref) eq 'HASH') {
-        %weights = %{$weightsref};
-    }
+    my ($fh)=@_;
     &log($fh,"<a name='errcount' />\n");
-    $totalcount=($weights{'N'}*$notices)+($weights{'W'}*$warnings)+($weights{'E'}*$errors);
+    $totalcount=$notices+4*$warnings+100*$errors;
     &errout($fh);
     &log($fh,"<h1>Total Error Count: $totalcount</h1>");
     my $now=time;
@@ -1015,7 +784,7 @@ sub write_serverhomeIDs {
                 eval {
                     local $SIG{ ALRM } = sub { die "TIMEOUT" };
                     alarm(10);
-                    $serverhomeID =
+                    $serverhomeID = 
                         &Apache::lonnet::get_server_homeID($name,1,'loncron');
                     alarm(0);
                 };
@@ -1060,108 +829,106 @@ sub write_checksums {
     return;
 }
 
-sub write_hostips {
-    my $lontabdir = $perlvar{'lonTabDir'};
-    my $defdom = $perlvar{'lonDefDomain'};
-    my $lonhost = $perlvar{'lonHostID'};
-    my $newfile = "$lontabdir/currhostips.tab";
-    my $oldfile = "$lontabdir/prevhostips.tab";
-    my (%prevhosts,%currhosts,%ipchange);
-    if ((-e $newfile) && (-s $newfile)) {
-        move($newfile,$oldfile);
-        chmod(0644,$oldfile);
-        if (open(my $fh,'<',$oldfile)) {
-            while (my $line=<$fh>) {
-                chomp($line);
-                if ($line =~ /^([^:]+):([\d.]+)$/) {
-                    $prevhosts{$1} = $2;
+sub clean_nosslverify {
+    my ($fh) = @_;
+    my %unlinked; 
+    if (-d "$perlvar{'lonSockDir'}/nosslverify") {
+        if (opendir(my $dh,"$perlvar{'lonSockDir'}/nosslverify")) {
+            while (my $fname=readdir($dh)) {
+                next if ($fname =~ /^\.+$/);
+                if (unlink("/home/httpd/sockets/nosslverify/$fname")) {
+                    &log($fh,"Unlinking $fname<br />");
+                    $unlinked{$fname} = 1;
                 }
             }
-            close($fh);
+            closedir($dh);
         }
     }
-    my ($ip_info,$cached) =
-        &Apache::lonnet::is_cached_new('iphost','iphost');
-    if (!$cached) {
-        &Apache::lonnet::get_iphost();
-        ($ip_info,$cached) =
-        &Apache::lonnet::is_cached_new('iphost','iphost');
-    }
-    if (ref($ip_info) eq 'ARRAY') {
-        %currhosts = %{$ip_info->[1]};
-        if (open(my $fh,'>',$newfile)) {
-            foreach my $key (keys(%currhosts)) {
-                print $fh "$key:$currhosts{$key}\n";
+    &log($fh,"<p>Removed ".scalar(keys(%unlinked))." nosslverify clients</p>");
+    return %unlinked;
+}
+sub clean_lonc_childpids {
+    my $childpiddir = "$perlvar{'lonDocRoot'}/lon-status/loncchld";
+    if (-d $childpiddir) {
+        if (opendir(my $dh,$childpiddir)) {
+            while (my $fname=readdir($dh)) {
+                next if ($fname =~ /^\.+$/);
+                unlink("$childpiddir/$fname");
             }
-            close($fh);
-            chmod(0644,$newfile);
+            closedir($dh);
         }
     }
-    if (keys(%prevhosts) && keys(%currhosts)) {
-        foreach my $key (keys(%prevhosts)) {
-            unless ($currhosts{$key} eq $prevhosts{$key}) {
-                $ipchange{$key} = $prevhosts{$key}.' | '.$currhosts{$key};
-            }
+}
+
+sub write_connection_config {
+    my ($isprimary,$domconf,$url,%connectssl,%changes);
+    my $primaryLibServer = &Apache::lonnet::domain($perlvar{'lonDefDomain'},'primary');
+    if ($primaryLibServer eq $perlvar{'lonHostID'}) {
+        $isprimary = 1;
+    } elsif ($primaryLibServer ne '') {
+        my $protocol = $Apache::lonnet::protocol{$primaryLibServer};
+        my $hostname = &Apache::lonnet::hostname($primaryLibServer);
+        unless ($protocol eq 'https') {
+            $protocol = 'http';
         }
-        foreach my $key (keys(%currhosts)) {
-            unless ($currhosts{$key} eq $prevhosts{$key}) {
-                $ipchange{$key} = $prevhosts{$key}.' | '.$currhosts{$key};
+        $url = $protocol.'://'.$hostname.'/cgi-bin/listdomconfig.pl';
+    }
+    my $domconf = &get_domain_config($perlvar{'lonDefDomain'},$primaryLibServer,$isprimary,
+                                     $url);
+    if (ref($domconf) eq 'HASH') {
+        if (ref($domconf->{'ssl'}) eq 'HASH') {
+            foreach my $connect ('connto','connfrom') {
+                if (ref($domconf->{'ssl'}->{$connect}) eq 'HASH') {
+                    my ($sslreq,$sslnoreq,$currsetting);
+                    my %contypes;
+                    foreach my $type ('dom','intdom','other') {
+                        $connectssl{$connect.'_'.$type} = $domconf->{'ssl'}->{$connect}->{$type};
+                    }
+                }
             }
         }
-    }
-    if (&Apache::lonnet::domain($defdom,'primary') eq $lonhost) {
-        if (keys(%ipchange)) {
-            if (open(my $fh,'>>',$perlvar{'lonDaemons'}.'/logs/hostip.log')) {
-               print $fh "********************\n".localtime(time).' Changes --'."\n".
-                         "| Hostname | Previous IP | New IP |\n".
-                         " --------------------------------- \n";
-               foreach my $hostname (sort(keys(%ipchange))) {
-                    print $fh "| $hostname | $ipchange{$hostname} |\n";
+        if (keys(%connectssl)) {
+            my %currconf; 
+            if (open(my $fh,'<',"$perlvar{'lonTabDir'}/connectionrules.tab")) {
+                while (my $line = <$fh>) {
+                    chomp($line);
+                    my ($name,$value) = split(/=/,$line);
+                    if ($value =~ /^(?:no|yes|req)$/) {
+                        if ($name =~ /^conn(to|from)_(dom|intdom|other)$/) {
+                            $currconf{$name} = $value;
+                        }
+                    }
                 }
-                print $fh "\n*******************\n\n";
                 close($fh);
             }
-            my $emailto = &Apache::loncommon::build_recipient_list(undef,
-                                   'hostipmail',$defdom);
-            if ($emailto) {
-                my $subject = "LON-CAPA Hostname to IP change ($perlvar{'lonHostID'})";
-                my $chgmail = "To: $emailto\n".
-                              "Subject: $subject\n".
-                              "Content-type: text/plain\; charset=UTF-8\n".
-                              "MIME-Version: 1.0\n\n".
-                              "Host/IP changes\n".
-                              " \n".
-                              "| Hostname | Previous IP | New IP |\n".
-                              " --------------------------------- \n";
-                foreach my $hostname (sort(keys(%ipchange))) {
-                    $chgmail .= "| $hostname | $ipchange{$hostname} |\n";
-                }
-                $chgmail .= "\n\n";
-                if (open(my $mailh, "|/usr/lib/sendmail -oi -t -odb")) {
-                    print $mailh $chgmail;
-                    close($mailh);
-                    print "Sending mail notification of hostname/IP changes.\n";
+            if (open(my $fh,'>',"$perlvar{'lonTabDir'}/connectionrules.tab")) {
+                my $count = 0;
+                foreach my $key (sort(keys(%connectssl))) { 
+                    print $fh "$key=$connectssl{$key}\n";
+                    if (exists($currconf{$key})) {
+                        unless ($currconf{$key} eq $connectssl{$key}) {
+                            $changes{$key} = 1;
+                        }
+                    } else {
+                        $changes{$key} = 1;
+                    }
+                    $count ++;
                 }
+                close($fh);
+                print "Completed writing SSL options for lonc/lond for $count items.\n";
             }
+        } else {
+            print "Writing of SSL options skipped - no connection rules in domain configuration.\n";
         }
+    } else {
+        print "Retrieval of SSL options for lonc/lond skipped - no configuration data available for domain.\n";
     }
-    return;
+    return %changes;
 }
 
 sub get_domain_config {
-    my ($dom,$primlibserv,$isprimary,$url,%confhash);
-    $dom = $perlvar{'lonDefDomain'};
-    $primlibserv = &Apache::lonnet::domain($dom,'primary');
-    if ($primlibserv eq $perlvar{'lonHostID'}) {
-        $isprimary = 1;
-    } elsif ($primlibserv ne '') {
-        my $protocol = $Apache::lonnet::protocol{$primlibserv};
-        my $hostname = &Apache::lonnet::hostname($primlibserv);
-        unless ($protocol eq 'https') {
-            $protocol = 'http';
-        }
-        $url = $protocol.'://'.$hostname.'/cgi-bin/listdomconfig.pl?primary='.$primlibserv.'&format=raw';
-    }
+    my ($dom,$primlibserv,$isprimary,$url) = @_;
+    my %confhash;
     if ($isprimary) {
         my $lonusersdir = $perlvar{'lonUsersDir'};
         my $fname = $lonusersdir.'/'.$dom.'/configuration.db';
@@ -1181,14 +948,14 @@ sub get_domain_config {
             }
         }
     } else {
-        my $ua=new LWP::UserAgent;
-        $ua->timeout(5);
-        my $request=new HTTP::Request('GET',$url);
-        my $response=$ua->request($request);
-        unless ($response->is_error()) {
-            my $content = $response->content;
-            if ($content) {
-                my @pairs=split(/\&/,$content);
+        if (open(PIPE,"wget --no-check-certificate '$url?primary=$primlibserv&format=raw' |")) {
+            my $config = '';
+            while (<PIPE>) {
+                $config .= $_;
+            }
+            close(PIPE);
+            if ($config) {
+                my @pairs=split(/\&/,$config);
                 foreach my $item (@pairs) {
                     my ($key,$value)=split(/=/,$item,2);
                     my $what = &LONCAPA::unescape($key);
@@ -1205,69 +972,127 @@ sub get_domain_config {
     return \%confhash;
 }
 
-sub get_permcount_settings {
-    my ($domconf) = @_;
-    my ($defaults,$names) = &Apache::loncommon::lon_status_items();
-    my (%weights,$threshold,$sysmail,$reportstatus,%exclusions);
-    foreach my $type ('E','W','N','U') {
-        $weights{$type} = $defaults->{$type};
-    }
-    $threshold = $defaults->{'threshold'};
-    $sysmail = $defaults->{'sysmail'};
-    $reportstatus = 1;
-    if (ref($domconf) eq 'HASH') {
-        if (ref($domconf->{'contacts'}) eq 'HASH') {
-            if ($domconf->{'contacts'}{'reportstatus'} == 0) {
-                $reportstatus = 0;
-            }
-            if (ref($domconf->{'contacts'}{'lonstatus'}) eq 'HASH') {
-                if (ref($domconf->{'contacts'}{'lonstatus'}{weights}) eq 'HASH') {
-                    foreach my $type ('E','W','N','U') {
-                        if (exists($domconf->{'contacts'}{'lonstatus'}{weights}{$type})) {
-                            $weights{$type} = $domconf->{'contacts'}{'lonstatus'}{weights}{$type};
-                        }
+sub write_hosttypes {
+    my %intdom = &Apache::lonnet::all_host_intdom();
+    my %hostdom = &Apache::lonnet::all_host_domain();
+    my $dom = $hostdom{$perlvar{'lonHostID'}};
+    my $internetdom = $intdom{$perlvar{'lonHostID'}};
+    my %changes;
+    if (($dom ne '') && ($internetdom ne '')) {
+        if (keys(%hostdom)) {
+            my %currhosttypes;
+            if (open(my $fh,'<',"$perlvar{'lonTabDir'}/hosttypes.tab")) {
+                while (my $line = <$fh>) {
+                    chomp($line);
+                    my ($name,$value) = split(/:/,$line);
+                    if (($name ne '') && ($value =~ /^(dom|intdom|other)$/)) {
+                        $currhosttypes{$name} = $value;
                     }
                 }
-                if (ref($domconf->{'contacts'}{'lonstatus'}{'excluded'}) eq 'ARRAY') {
-                    my @excluded = @{$domconf->{'contacts'}{'lonstatus'}{'excluded'}};
-                    if (@excluded) {
-                        map { $exclusions{$_} = 1; } @excluded;
+                close($fh);
+            }
+            if (open(my $fh,'>',"$perlvar{'lonTabDir'}/hosttypes.tab")) {
+                my $count = 0;
+                foreach my $lonid (sort(keys(%hostdom))) {
+                    my $type = 'other';
+                    if ($hostdom{$lonid} eq $dom) {
+                        $type = 'dom'; 
+                    } elsif ($intdom{$lonid} eq $internetdom) {
+                        $type = 'intdom';
                     }
+                    print $fh "$lonid:$type\n";
+                    if (exists($currhosttypes{$lonid})) {
+                        if ($type ne $currhosttypes{$lonid}) {
+                            $changes{$lonid} = 1;
+                        }
+                    } else {
+                        $changes{$lonid} = 1;
+                    }
+                    $count ++;
                 }
-                if (exists($domconf->{'contacts'}{'lonstatus'}{'threshold'})) {
-                    $threshold = $domconf->{'contacts'}{'lonstatus'}{'threshold'};
-                }
-                if (exists($domconf->{'contacts'}{'lonstatus'}{'sysmail'})) {
-                    $sysmail = $domconf->{'contacts'}{'lonstatus'}{'sysmail'};
-                }
+                close($fh);
+                print "Completed writing host type data for $count hosts.\n";
             }
+        } else {
+            print "Writing of host types skipped - no hosts found.\n";
         }
+    } else {
+        print "Writing of host types skipped - could not determine this host's LON-CAPA domain or 'internet' domain.\n";
+    }
+    return %changes;
+}
+
+sub update_revocation_list {
+    my ($result,$changed) = &Apache::lonnet::fetch_crl_pemfile();
+    if ($result eq 'ok') {
+        print "Certificate Revocation List (from CA) updated.\n";
+    } else {
+        print "Certificate Revocation List from (CA) not updated.\n";
     }
-    return ($threshold,$sysmail,$reportstatus,\%weights,\%exclusions);
+    return $changed;
 }
 
-sub read_serverhomeIDs {
-    my %server;
-    if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
-        if (open(my $fh,'<',"$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
-            while (<$fh>) {
-                my($host,$id) = split(/:/);
-                chomp($id);
-                $server{$host} = $id;
+sub reset_nosslverify_pids {
+    my ($fh,%sslrem) = @_;
+    &checkon_daemon($fh,'lond',40000,'USR2');
+    my $loncpidfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
+    my $loncppid;
+    if ((-e $loncpidfile) && (open(my $pfh,'<',$loncpidfile))) {
+        $loncppid=<$pfh>;
+        chomp($loncppid);
+        close($pfh);
+        if ($loncppid =~ /^\d+$/) {
+            my %pids_by_host;
+            my $docdir = $perlvar{'lonDocRoot'};
+            if (-d "$docdir/lon-status/loncchld") {
+                if (opendir(my $dh,"$docdir/lon-status/loncchld")) {
+                    while (my $file = readdir($dh)) {
+                        next if ($file =~ /^\./);
+                        if (open(my $fh,'<',"$docdir/lon-status/loncchld/$file")) {
+                            my $record = <$fh>;
+                            chomp($record);
+                            close($fh);
+                            my ($remotehost,$authmode) = split(/:/,$record);
+                            $pids_by_host{$remotehost}{$authmode}{$file} = 1;
+                        }
+                    }
+                    closedir($dh);
+                    if (keys(%pids_by_host)) {
+                        foreach my $host (keys(%pids_by_host)) {
+                            if ($sslrem{$host}) {
+                                if (ref($pids_by_host{$host}) eq 'HASH') {
+                                    if (ref($pids_by_host{$host}{'insecure'}) eq 'HASH') {
+                                        if (keys(%{$pids_by_host{$host}{'insecure'}})) {
+                                            foreach my $pid (keys(%{$pids_by_host{$host}{'insecure'}})) {
+                                                if (open(PIPE,"ps -o ppid= -p $pid |")) {
+                                                    my $ppid = <PIPE>;
+                                                    chomp($ppid);
+                                                    close(PIPE);
+                                                    $ppid =~ s/(^\s+|\s+$)//g;
+                                                    if (($ppid == $loncppid) && (kill 0 => $pid)) {
+                                                        kill QUIT => $pid;
+                                                    }
+                                                }
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
             }
-            close($fh);
         }
     }
-    return %server;
+    return;
 }
 
 sub send_mail {
-    my ($sysmail,$reportstatus) = @_;
     my $defdom = $perlvar{'lonDefDomain'};
     my $origmail = $perlvar{'lonAdmEMail'};
     my $emailto = &Apache::loncommon::build_recipient_list(undef,
                                    'lonstatusmail',$defdom,$origmail);
-    if (($totalcount>$sysmail) && ($reportstatus)) {
+    if ($totalcount>2500) {
 	$emailto.=",$perlvar{'lonSysEMail'}";
     }
     my $from;
@@ -1320,23 +1145,19 @@ Options:
 				do not send emails do not
                                 check if the daemons are running, do not
                                 generate lon-status
-   --justiptables          Only update the dynamic iptables rules for the
-                                lond port; do not send emails, do not
-                                check if the daemons are running, do not
-                                generate lon-status
+                           
 USAGE
 }
 
 # ================================================================ Main Program
 sub main () {
     my ($help,$justcheckdaemons,$noemail,$justcheckconnections,
-	$justreload,$justiptables);
+	$justreload);
     &GetOptions("help"                 => \$help,
 		"justcheckdaemons"     => \$justcheckdaemons,
 		"noemail"              => \$noemail,
 		"justcheckconnections" => \$justcheckconnections,
-		"justreload"           => \$justreload,
-                "justiptables"         => \$justiptables
+		"justreload"           => \$justreload
 		);
     if ($help) { &usage(); return; }
 # --------------------------------- Read loncapa_apache.conf and loncapa.conf
@@ -1351,10 +1172,9 @@ sub main () {
     if ('{[[[[lonHostID]]]]}' eq $perlvar{'lonHostID'}) {
 	print("Unconfigured machine.\n");
 	my $emailto=$perlvar{'lonSysEMail'};
-	my $hostname = Sys::Hostname::FQDN::fqdn();
-	$hostname=~s/\.+/./g;
-	$hostname=~s/\-+/-/g;
-	$hostname=~s/[^\w\.-]//g; # make sure is safe to pass through shell
+	my $hostname=`/bin/hostname`;
+	chop $hostname;
+	$hostname=~s/[^\w\.]//g; # make sure is safe to pass through shell
 	my $subj="LON: Unconfigured machine $hostname";
 	system("echo 'Unconfigured machine $hostname.' |".
                " mail -s '$subj' $emailto > /dev/null");
@@ -1387,13 +1207,11 @@ sub main () {
             }
         }
     }
-    if (!$justiptables) {
-        &Apache::lonnet::load_hosts_tab(1,$nomemcache);
-        &Apache::lonnet::load_domain_tab(1,$nomemcache);
-        &Apache::lonnet::get_iphost(1,$nomemcache);
-    }
+    &Apache::lonnet::load_hosts_tab(1,$nomemcache);
+    &Apache::lonnet::load_domain_tab(1,$nomemcache);
+    &Apache::lonnet::get_iphost(1,$nomemcache);
 
-# ----------------------------------------- Force firewall update for lond port
+# ----------------------------------------- Force firewall update for lond port  
 
     if ((!$justcheckdaemons) && (!$justreload)) {
         my $now = time;
@@ -1408,7 +1226,7 @@ sub main () {
             if (&LONCAPA::try_to_lock('/tmp/lock_lciptables')) {
                 my $execpath = $perlvar{'lonDaemons'}.'/lciptables';
                 system("$execpath $tmpfile");
-                unlink('/tmp/lock_lciptables');  # Remove the lock file.
+                unlink('/tmp/lock_lciptables');  # Remove the lock file. 
             }
             unlink($tmpfile);
         }
@@ -1420,21 +1238,20 @@ sub main () {
     $warnings=0;
     $notices=0;
 
-
+	
     my $fh;
-    if (!$justcheckdaemons && !$justcheckconnections && !$justreload && !$justiptables) {
+    if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
 	$fh=&start_logging();
 
 	&log_machine_info($fh);
 	&clean_tmp($fh);
 	&clean_lonIDs($fh);
-        &clean_balanceIDs($fh);
         &clean_webDAV_sessionIDs($fh);
 	&check_httpd_logs($fh);
 	&rotate_lonnet_logs($fh);
 	&rotate_other_logs($fh);
     }
-    if (!$justcheckconnections && !$justreload && !$justiptables) {
+    if (!$justcheckconnections && !$justreload) {
 	&checkon_daemon($fh,'lonmemcached',40000);
 	&checkon_daemon($fh,'lonsql',200000);
 	if ( &checkon_daemon($fh,'lond',40000,'USR1') eq 'running') {
@@ -1445,24 +1262,33 @@ sub main () {
         &checkon_daemon($fh,'lonr',40000);
     }
     if ($justreload) {
+        &clean_nosslverify($fh);
+        &write_connection_config();
+        &write_hosttypes();
+        &update_revocation_list(); 
 	&checkon_daemon($fh,'lond',40000,'USR2');
 	&checkon_daemon($fh,'lonc',40000,'USR2');
     }
     if ($justcheckconnections) {
 	&test_connections($fh);
     }
-    if (!$justcheckdaemons && !$justcheckconnections && !$justreload && !$justiptables) {
-        my $domconf = &get_domain_config();
-        my ($threshold,$sysmail,$reportstatus,$weightsref,$exclusionsref) =
-            &get_permcount_settings($domconf);
-	&check_delayed_msg($fh,$weightsref,$exclusionsref);
-	&finish_logging($fh,$weightsref);
+    if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
+	&check_delayed_msg($fh);
 	&log_simplestatus();
         &write_loncaparevs();
         &write_serverhomeIDs();
 	&write_checksums();
-        &write_hostips();
-        if ($totalcount>$threshold && !$noemail) { &send_mail($sysmail,$reportstatus); }
+        my %sslrem = &clean_nosslverify($fh);
+        my %conchgs = &write_connection_config();
+        my %hosttypechgs = &write_hosttypes();
+        my $hadcrlchg = &update_revocation_list();
+        if ((keys(%conchgs) > 0) || (keys(%hosttypechgs) > 0) ||
+            $hadcrlchg || (keys(%sslrem) > 0)) {
+            &checkon_daemon($fh,'lond',40000,'USR2');
+            &reset_nosslverify_pids($fh,%sslrem);
+        }
+        &finish_logging($fh);
+	if ($totalcount>200 && !$noemail) { &send_mail(); }
     }
 }