diff --git a/gns3server/appliances/exos.gns3a b/gns3server/appliances/exos.gns3a
index afa2fef1..411cc0fd 100644
--- a/gns3server/appliances/exos.gns3a
+++ b/gns3server/appliances/exos.gns3a
@@ -28,6 +28,20 @@
     
     "images": [
 
+		{
+            "filename": "EXOS-VM_v30.6.1.11.qcow2",
+            "version": "30.6.1.11",
+            "md5sum": "bf3e13570417d7e3464165b344c196eb",
+            "filesize": 475332608,
+            "direct_download_url": "https://akamai-ep.extremenetworks.com/Extreme_P/github-en/Virtual_EXOS/EXOS-VM_v30.6.1.11.qcow2"
+        },
+		{
+            "filename": "EXOS-VM_v30.5.1.15.qcow2",
+            "version": "30.5.1.15",
+            "md5sum": "380d0c7bb8f0aa272ceb84b85f367a63",
+            "filesize": 498663424,
+            "direct_download_url": "https://akamai-ep.extremenetworks.com/Extreme_P/github-en/Virtual_EXOS/EXOS-VM_v30.5.1.15.qcow2"
+        },
 		{
             "filename": "EXOS-VM_v30.4.1.2.qcow2",
             "version": "30.4.1.2",
@@ -75,6 +89,18 @@
     
     "versions": [
 
+        {
+            "name": "30.6.1.11",
+            "images": {
+                "hda_disk_image": "EXOS-VM_v30.6.1.11.qcow2"
+            }
+        },
+        {
+            "name": "30.5.1.15",
+            "images": {
+                "hda_disk_image": "EXOS-VM_v30.5.1.15.qcow2"
+            }
+        },
         {
             "name": "30.4.1.2",
             "images": {
diff --git a/gns3server/appliances/extreme-networks-voss.gns3a b/gns3server/appliances/extreme-networks-voss.gns3a
index c5a2f3ea..e5834ed6 100644
--- a/gns3server/appliances/extreme-networks-voss.gns3a
+++ b/gns3server/appliances/extreme-networks-voss.gns3a
@@ -30,6 +30,13 @@
     "images":
     [
         {
+            "filename": "VOSSGNS3.8.1.5.0.qcow2",
+            "version": "v8.1.5.0",
+            "md5sum": "dff95f67fc04f82f627209ff7b7b3860",
+            "filesize": 331087872,
+			"direct_download_url": "https://akamai-ep.extremenetworks.com/Extreme_P/github-en/Virtual_VOSS/VOSSGNS3.8.1.5.0.qcow2"
+        },
+		{
             "filename": "VOSSGNS3.8.1.0.0.qcow2",
             "version": "v8.1.0.0",
             "md5sum": "6b46fd54999a4cd2369440809ccc5099",
@@ -41,20 +48,27 @@
             "version": "voss_7.1.0.0",
             "md5sum": "7bb2974efe1a1ab857debd9fa894dbe7",
             "filesize": 193724416,
-            "direct_download_url": "https://stackingtool.extremenetworks.com/github/VOSSGNS3.7.1.0.0.qcow2"
+            "direct_download_url": "https://akamai-ep.extremenetworks.com/Extreme_P/github-en/Virtual_VOSS/VOSSGNS3.7.1.0.0.qcow2"
         },
 		{
             "filename": "VOSSGNS3.7.0.0.0.img",
             "version": "voss_7.0.0.0",
             "md5sum": "65fe97461156aa88c836a90be1287649",
             "filesize": 419430400,
-            "direct_download_url": "https://stackingtool.extremenetworks.com/github/VOSSGNS3.7.0.0.0.img"
+            "direct_download_url": "https://akamai-ep.extremenetworks.com/Extreme_P/github-en/Virtual_VOSS/VOSSGNS3.7.0.0.0.img"
     	}
     ],
 
     "versions":
     [
         {
+            "name": "v8.1.5.0",
+            "images":
+            {
+                "hda_disk_image": "VOSSGNS3.8.1.5.0.qcow2"
+            }
+        },
+		{
             "name": "v8.1.0.0",
             "images":
             {
diff --git a/gns3server/appliances/mikrotik-chr.gns3a b/gns3server/appliances/mikrotik-chr.gns3a
index e765be2a..db2e9da2 100644
--- a/gns3server/appliances/mikrotik-chr.gns3a
+++ b/gns3server/appliances/mikrotik-chr.gns3a
@@ -26,180 +26,144 @@
         "options": "-nographic"
     },
     "images": [
-            {
-              "filename": "chr-7.0beta5.img",
-              "version": "7.0beta5",
-              "md5sum": "3c9855f0efdc23df29511c76aee52c95",
-              "filesize": 67108864,
-              "download_url": "http://www.mikrotik.com/download",
-              "direct_download_url": "https://download.mikrotik.com/routeros/7.0beta5/chr-7.0beta5.img.zip",
-              "compression": "zip"
-           },
-			{
-              "filename": "chr-7.0beta3.img",
-              "version": "7.0beta3",
-              "md5sum": "938c59989df039cb9f33e0da96c22174",
-              "filesize": 67108864,
-              "download_url": "http://www.mikrotik.com/download",
-              "direct_download_url": "https://download.mikrotik.com/routeros/7.0beta3/chr-7.0beta3.img.zip",
-              "compression": "zip"
-           },
-		   {
-              "filename": "chr-6.46.3.img",
-              "version": "6.46.3",
-              "md5sum": "72d72c4a585a04eb9ed24ec9e4678486",
-              "filesize": 67108864,
-              "download_url": "http://www.mikrotik.com/download",
-              "direct_download_url": "https://download.mikrotik.com/routeros/6.46.3/chr-6.46.3.img.zip",
-              "compression": "zip"
-           },
-            {
-              "filename": "chr-6.45.8.img",
-              "version": "6.45.8",
-              "md5sum": "73cc01e22e0b301dc29416f59ced8a7d",
-              "filesize": 67108864,
-              "download_url": "http://www.mikrotik.com/download",
-              "direct_download_url": "https://download.mikrotik.com/routeros/6.45.8/chr-6.45.8.img.zip",
-              "compression": "zip"
-           },
-			{
-              "filename": "chr-6.45.6.img",
-              "version": "6.45.6",
-              "md5sum": "e68db699ba23ac7e4fba95b3075c1c6b",
-              "filesize": 67108864,
-              "download_url": "http://www.mikrotik.com/download",
-              "direct_download_url": "https://download2.mikrotik.com/routeros/6.45.6/chr-6.45.6.img.zip",
-              "compression": "zip"
-           },
-           {
-             "filename": "chr-6.44.5.img",
-             "version": "6.44.5",
-             "md5sum": "19aa21073c8ea4540daacde69bacda24",
+          {
+             "filename": "chr-7.0beta8.img",
+             "version": "7.0beta8",
+             "md5sum": "dbc5b9a1d7cc0e56d5361a0e212dbd96",
              "filesize": 67108864,
              "download_url": "http://www.mikrotik.com/download",
-             "direct_download_url": "https://download2.mikrotik.com/routeros/6.44.5/chr-6.44.5.img.zip",
+             "direct_download_url": "https://download.mikrotik.com/routeros/7.0beta8/chr-7.0beta8.img.zip",
              "compression": "zip"
-          },
-          {
-            "filename": "chr-6.42.12.img",
-            "version": "6.42.12",
-            "md5sum": "8485c606eb38e629fb1f5356d31bbc86",
-            "filesize": 45537201,
+         },
+         {
+             "filename": "chr-6.47.img",
+             "version": "6.47",
+             "md5sum": "39dea5d6a58708eebfa73332456566f4",
+             "filesize": 67108864,
+             "download_url": "http://www.mikrotik.com/download",
+             "direct_download_url": "https://download.mikrotik.com/routeros/6.47/chr-6.47.img.zip",
+             "compression": "zip"
+         },
+         {
+             "filename": "chr-6.46.5.img",
+             "version": "6.46.5",
+             "md5sum": "f9ea37f5a5ac3110f8f5de33e24a7749",
+             "filesize": 67108864,
+             "download_url": "http://www.mikrotik.com/download",
+             "direct_download_url": "https://download.mikrotik.com/routeros/6.46.5/chr-6.46.5.img.zip",
+             "compression": "zip"
+         },
+         {
+            "filename": "chr-6.45.8.img",
+            "version": "6.45.8",
+            "md5sum": "73cc01e22e0b301dc29416f59ced8a7d",
+            "filesize": 67108864,
             "download_url": "http://www.mikrotik.com/download",
-            "direct_download_url": "https://download2.mikrotik.com/routeros/6.42.12/chr-6.42.12.img.zip",
+            "direct_download_url": "https://download.mikrotik.com/routeros/6.45.8/chr-6.45.8.img.zip",
             "compression": "zip"
          },
          {
-            "filename": "chr-6.44.img",
-            "version": "6.44",
-            "md5sum": "86fdf9f0093b4e8f9e7b1c8019fb37b5",
-            "filesize": 33621035,
+            "filename": "chr-6.45.6.img",
+            "version": "6.45.6",
+            "md5sum": "e68db699ba23ac7e4fba95b3075c1c6b",
+            "filesize": 67108864,
             "download_url": "http://www.mikrotik.com/download",
-            "direct_download_url": "https://download2.mikrotik.com/routeros/6.44/chr-6.44.img.zip",
+            "direct_download_url": "https://download.mikrotik.com/routeros/6.45.6/chr-6.45.6.img.zip",
             "compression": "zip"
-         },
-        {
-           "filename": "chr-6.44.3.img",
-           "version": "6.44.3",
-           "md5sum": "c46b33125d536faa24473a519abbb89d",
-           "filesize": 67108864,
-           "download_url": "http://www.mikrotik.com/download",
-           "direct_download_url": "https://download.mikrotik.com/routeros/6.44.3/chr-6.44.3.img.zip",
-           "compression": "zip"
         },
         {
-           "filename": "chr-6.44.2.img",
-           "version": "6.44.2",
-           "md5sum": "f1ddaa47829e12c1f9f023d8c06b88cc",
-           "filesize": 67108864,
-           "download_url": "http://www.mikrotik.com/download",
-           "direct_download_url": "https://download.mikrotik.com/routeros/6.44.2/chr-6.44.2.img.zip",
-           "compression": "zip"
-        },
-        {
-           "filename": "chr-6.43.8.img",
-           "version": "6.43.8",
-           "md5sum": "9437133fc7e77779dc3ff62b98f30dc2",
-           "filesize": 134217728,
-           "download_url": "http://www.mikrotik.com/download",
-           "direct_download_url": "https://download2.mikrotik.com/routeros/6.43.8/chr-6.43.8.img.zip",
-           "compression": "zip"
+            "filename": "chr-6.44.5.img",
+            "version": "6.44.5",
+            "md5sum": "19aa21073c8ea4540daacde69bacda24",
+            "filesize": 67108864,
+            "download_url": "http://www.mikrotik.com/download",
+            "direct_download_url": "https://download.mikrotik.com/routeros/6.44.5/chr-6.44.5.img.zip",
+            "compression": "zip"
         },
         {
-           "filename": "chr-6.42.9.img",
-           "version": "6.42.9",
-           "md5sum": "1f856978cfc3ceb4b5e18e4e079f2e32",
-           "filesize": 134217728,
-           "download_url": "http://www.mikrotik.com/download",
-           "direct_download_url": "https://download2.mikrotik.com/routeros/6.42.9/chr-6.42.9.img.zip",
-           "compression": "zip"
+            "filename": "chr-6.44.3.img",
+            "version": "6.44.3",
+            "md5sum": "c46b33125d536faa24473a519abbb89d",
+            "filesize": 67108864,
+            "download_url": "http://www.mikrotik.com/download",
+            "direct_download_url": "https://download.mikrotik.com/routeros/6.44.3/chr-6.44.3.img.zip",
+            "compression": "zip"
         },
         {
-            "filename": "chr-6.42.img",
-            "version": "6.42",
-            "md5sum": "279bb518497b40f41c8585128916a2fb",
-            "filesize": 134217728,
+            "filename": "chr-6.44.2.img",
+            "version": "6.44.2",
+            "md5sum": "f1ddaa47829e12c1f9f023d8c06b88cc",
+            "filesize": 67108864,
             "download_url": "http://www.mikrotik.com/download",
-            "direct_download_url": "https://download2.mikrotik.com/routeros/6.42/chr-6.42.img.zip",
+            "direct_download_url": "https://download.mikrotik.com/routeros/6.44.2/chr-6.44.2.img.zip",
             "compression": "zip"
         },
         {
-            "filename": "chr-6.41.4.img",
-            "version": "6.41.4",
-            "md5sum": "63b555b2b7f0d78b79edb92f7e7d2ed7",
-            "filesize": 134217728,
+            "filename": "chr-6.44.img",
+            "version": "6.44",
+            "md5sum": "86fdf9f0093b4e8f9e7b1c8019fb37b5",
+            "filesize": 33621035,
             "download_url": "http://www.mikrotik.com/download",
-            "direct_download_url": "https://download2.mikrotik.com/routeros/6.41.4/chr-6.41.4.img.zip",
+            "direct_download_url": "https://download.mikrotik.com/routeros/6.44/chr-6.44.img.zip",
             "compression": "zip"
         },
         {
-            "filename": "chr-6.40.7.img",
-            "version": "6.40.7",
-            "md5sum": "424b897d631c4cac4324ca310e81b494",
+            "filename": "chr-6.43.8.img",
+            "version": "6.43.8",
+            "md5sum": "9437133fc7e77779dc3ff62b98f30dc2",
             "filesize": 134217728,
             "download_url": "http://www.mikrotik.com/download",
-            "direct_download_url": "https://download2.mikrotik.com/routeros/6.40.7/chr-6.40.7.img.zip",
+            "direct_download_url": "https://download.mikrotik.com/routeros/6.43.8/chr-6.43.8.img.zip",
             "compression": "zip"
         },
         {
-            "filename": "chr-6.40.5.img",
-            "version": "6.40.5",
-            "md5sum": "5d3bef219a859d417fea704ae7109eb7",
-            "filesize": 134217728,
+            "filename": "chr-6.42.12.img",
+            "version": "6.42.12",
+            "md5sum": "8485c606eb38e629fb1f5356d31bbc86",
+            "filesize": 45537201,
             "download_url": "http://www.mikrotik.com/download",
-            "direct_download_url": "https://download2.mikrotik.com/routeros/6.40.5/chr-6.40.5.img.zip",
+            "direct_download_url": "https://download.mikrotik.com/routeros/6.42.12/chr-6.42.12.img.zip",
             "compression": "zip"
         },
         {
-            "filename": "chr-6.40.3.img",
-            "version": "6.40.3",
-            "md5sum": "1861df67e9bbf17433f11f33f7dedd1e",
+           "filename": "chr-6.42.9.img",
+           "version": "6.42.9",
+           "md5sum": "1f856978cfc3ceb4b5e18e4e079f2e32",
+           "filesize": 134217728,
+           "download_url": "http://www.mikrotik.com/download",
+           "direct_download_url": "https://download.mikrotik.com/routeros/6.42.9/chr-6.42.9.img.zip",
+           "compression": "zip"
+        },
+        {
+            "filename": "chr-6.42.img",
+            "version": "6.42",
+            "md5sum": "279bb518497b40f41c8585128916a2fb",
             "filesize": 134217728,
             "download_url": "http://www.mikrotik.com/download",
-            "direct_download_url": "https://download2.mikrotik.com/routeros/6.40.3/chr-6.40.3.img.zip",
+            "direct_download_url": "https://download.mikrotik.com/routeros/6.42/chr-6.42.img.zip",
             "compression": "zip"
         }
     ],
     "versions": [
         {
-            "name": "7.0beta5",
+            "name": "7.0beta8",
             "images": {
-                "hda_disk_image": "chr-7.0beta5.img"
+                "hda_disk_image": "chr-7.0beta8.img"
             }
         },
-		{
-            "name": "7.0beta3",
+        {
+            "name": "6.47",
             "images": {
-                "hda_disk_image": "chr-7.0beta3.img"
+                "hda_disk_image": "chr-6.47.img"
             }
         },
-		{
-            "name": "6.46.3",
+        {
+            "name": "6.46.5",
             "images": {
-                "hda_disk_image": "chr-6.46.3.img"
+                "hda_disk_image": "chr-6.46.5.img"
             }
         },
-		{
+        {
             "name": "6.45.8",
             "images": {
                 "hda_disk_image": "chr-6.45.8.img"
@@ -230,39 +194,33 @@
             }
         },
         {
-            "name": "6.43.8",
-            "images": {
-                "hda_disk_image": "chr-6.43.8.img"
-            }
-        },
-        {
-            "name": "6.42.9",
+            "name": "6.44",
             "images": {
-                "hda_disk_image": "chr-6.42.9.img"
+                "hda_disk_image": "chr-6.44.img"
             }
         },
         {
-            "name": "6.41.4",
+            "name": "6.43.8",
             "images": {
-                "hda_disk_image": "chr-6.41.4.img"
+                "hda_disk_image": "chr-6.43.8.img"
             }
         },
         {
-            "name": "6.40.7",
+            "name": "6.42.12",
             "images": {
-                "hda_disk_image": "chr-6.40.7.img"
+                "hda_disk_image": "chr-6.42.12.img"
             }
         },
         {
-            "name": "6.40.5",
+            "name": "6.42.9",
             "images": {
-                "hda_disk_image": "chr-6.40.5.img"
+                "hda_disk_image": "chr-6.42.9.img"
             }
         },
         {
-            "name": "6.40.3",
+            "name": "6.42",
             "images": {
-                "hda_disk_image": "chr-6.40.3.img"
+                "hda_disk_image": "chr-6.42.img"
             }
         }
     ]
diff --git a/gns3server/appliances/netem.gns3a b/gns3server/appliances/netem.gns3a
index 5245bb24..d6121edf 100644
--- a/gns3server/appliances/netem.gns3a
+++ b/gns3server/appliances/netem.gns3a
@@ -9,7 +9,7 @@
     "registry_version": 3,
     "status": "experimental",
     "maintainer": "Bernhard Ehlers",
-    "maintainer_email": "be@bernhard-ehlers.de",
+    "maintainer_email": "none@b-ehlers.de",
     "usage": "Insert the NETem VM between two network elements and connect it to them. NETem is fully transparent, it bridges the traffic from one interface to the other one. As NETem only bridges, it needs no IP addresses. On start a menu on the console allows a user-friendy configuration of the line parameters.",
     "port_name_format": "eth{0}",
     "qemu": {
@@ -27,8 +27,8 @@
             "version": "0.4",
             "md5sum": "e678698c97804901c7a53f6b68c8b861",
             "filesize": 26476544,
-            "download_url": "http://bernhard-ehlers.de/projects/netem/index.html",
-            "direct_download_url": "http://bernhard-ehlers.de/projects/netem/NETem-v4.qcow2"
+            "download_url": "https://www.b-ehlers.de/projects/netem/index.html",
+            "direct_download_url": "https://www.b-ehlers.de/projects/netem/NETem-v4.qcow2"
         }
     ],
     "versions": [
diff --git a/gns3server/appliances/pfsense.gns3a b/gns3server/appliances/pfsense.gns3a
index 19b1108f..7fb2245c 100644
--- a/gns3server/appliances/pfsense.gns3a
+++ b/gns3server/appliances/pfsense.gns3a
@@ -23,6 +23,13 @@
         "process_priority": "normal"
     },
     "images": [
+        {
+            "filename": "pfSense-CE-2.4.5-RELEASE-p1-amd64.iso",
+            "version": "2.4.5-p1",
+            "md5sum": "bd1120494be5f36cba3a7ab34e8278da",
+            "filesize": 752506880,
+            "download_url": "https://www.pfsense.org/download/mirror.php?section=downloads"
+        },
         {
             "filename": "pfSense-CE-2.4.4-RELEASE-p3-amd64.iso",
             "version": "2.4.4-p3",
@@ -48,6 +55,13 @@
 
     ],
     "versions": [
+        {
+            "name": "2.4.5-p1",
+            "images": {
+                "hda_disk_image": "empty100G.qcow2",
+                "cdrom_image": "pfSense-CE-2.4.5-RELEASE-p1-amd64.iso"
+            }
+        },
         {
             "name": "2.4.4-p3",
             "images": {