diff --git a/gns3server/appliances/aruba-arubaoscx.gns3a b/gns3server/appliances/aruba-arubaoscx.gns3a
index 39109f05..db45527b 100644
--- a/gns3server/appliances/aruba-arubaoscx.gns3a
+++ b/gns3server/appliances/aruba-arubaoscx.gns3a
@@ -4,7 +4,7 @@
     "category": "multilayer_switch",
     "description": "The ArubaOS-CX Simulation Software is a virtual platform to enable simulation of the ArubaOS-CX Network Operating System. Simulated networks can be created using many of the protocols in the ArubaOS-CX Operating system like OSPF, BGP (inc. EVPN). Key features like the Aruba Network Analytics Engine and the REST API can be simulated, providing a lightweight development platform to building the modern network.",
     "vendor_name": "HPE Aruba",
-    "vendor_url": "arubanetworks.com",
+    "vendor_url": "https://www.arubanetworks.com",
     "product_name": "ArubaOS-CX Simulation Software",
     "registry_version": 4,
     "status": "stable",
@@ -30,6 +30,13 @@
         "process_priority": "normal"
     },
     "images": [
+        {
+            "filename": "arubaoscx-disk-image-genericx86-p4-20220616193419.vmdk",
+            "version": "10.10.0002",
+            "md5sum": "ed031aeb6caf92adb408c7603d294fd4",
+            "filesize": 355858944,
+            "download_url": "https://asp.arubanetworks.com/"
+        },
         {
             "filename": "arubaoscx-disk-image-genericx86-p4-20220223012712.vmdk",
             "version": "10.09.1000",
@@ -88,6 +95,12 @@
         }
     ],
     "versions": [
+        {
+            "name": "10.10.0002",
+            "images": {
+                "hda_disk_image": "arubaoscx-disk-image-genericx86-p4-20220616193419.vmdk"
+            }
+        },
         {
             "name": "10.09.1000",
             "images": {
diff --git a/gns3server/appliances/aruba-vgw.gns3a b/gns3server/appliances/aruba-vgw.gns3a
index 6592a204..67c3910a 100644
--- a/gns3server/appliances/aruba-vgw.gns3a
+++ b/gns3server/appliances/aruba-vgw.gns3a
@@ -4,7 +4,7 @@
     "category": "firewall",
     "description": "Aruba Virtual Gateways allow customers to bring their public cloud infrastructure to the SD-WAN fabric and facilitate connectivity between branches and the public cloud.",
     "vendor_name": "HPE Aruba",
-    "vendor_url": "arubanetworks.com",
+    "vendor_url": "https://www.arubanetworks.com",
     "documentation_url": "https://asp.arubanetworks.com/downloads;products=Aruba%20SD-WAN",
     "product_name": "Aruba SD-WAN Virtual Gateway",
     "product_url": "https://www.arubanetworks.com/products/networking/gateways-and-controllers/",
diff --git a/gns3server/appliances/aruba-vmc.gns3a b/gns3server/appliances/aruba-vmc.gns3a
index 52ba75d4..7be2cca4 100644
--- a/gns3server/appliances/aruba-vmc.gns3a
+++ b/gns3server/appliances/aruba-vmc.gns3a
@@ -4,7 +4,7 @@
     "category": "guest",
     "description": "Aruba Virtual Mobility Controller",
     "vendor_name": "HPE Aruba",
-    "vendor_url": "arubanetworks.com",
+    "vendor_url": "https://www.arubanetworks.com",
     "product_name": "Aruba VMC",
     "registry_version": 4,
     "status": "stable",
diff --git a/gns3server/appliances/cisco-c8000v.gns3a b/gns3server/appliances/cisco-c8000v.gns3a
index 6c1828da..14ab53c8 100644
--- a/gns3server/appliances/cisco-c8000v.gns3a
+++ b/gns3server/appliances/cisco-c8000v.gns3a
@@ -24,6 +24,13 @@
         "kvm": "require"
     },
     "images": [
+        {
+            "filename": "c8000v-universalk9_8G_serial.17.06.01a.qcow2",
+            "version": "17.06.01a 8G",
+            "md5sum": "d8b8ae633d953ec1b6d8f18a09a4f4e7",
+            "filesize": 1595277312,
+            "download_url": "https://software.cisco.com/download/home/286327102/type/282046477/release/Bengaluru-17.6.1a"
+        },
         {
             "filename": "c8000v-universalk9_8G_serial.17.04.01a.qcow2",
             "version": "17.04.01a 8G",
@@ -40,6 +47,12 @@
         }
     ],
     "versions": [
+        {
+            "name": "17.06.01a 8G",
+            "images": {
+                "hda_disk_image": "c8000v-universalk9_8G_serial.17.06.01a.qcow2"
+            }
+        },
         {
             "name": "17.04.01a 8G",
             "images": {
diff --git a/gns3server/appliances/cisco-iou-l3.gns3a b/gns3server/appliances/cisco-iou-l3.gns3a
index 19a5380b..3b0ac2f0 100644
--- a/gns3server/appliances/cisco-iou-l3.gns3a
+++ b/gns3server/appliances/cisco-iou-l3.gns3a
@@ -18,6 +18,12 @@
         "startup_config": "iou_l3_base_startup-config.txt"
     },
     "images": [
+        {
+            "filename": "i86bi_LinuxL3-AdvEnterpriseK9-M2_157_3_May_2018.bin",
+            "version": "15.7(3)M2",
+            "md5sum": "d6874260c3daeeb96d10fc844ae0b93b",
+            "filesize": 184759244
+        },
         {
             "filename": "i86bi-linux-l3-adventerprisek9-ms.155-2.T.bin",
             "version": "155-2T",
@@ -32,6 +38,12 @@
         }
     ],
     "versions": [
+        {
+            "name": "15.7(3)M2",
+            "images": {
+                "image": "i86bi_LinuxL3-AdvEnterpriseK9-M2_157_3_May_2018.bin"
+            }
+        },
         {
             "name": "155-2T",
             "images": {
diff --git a/gns3server/appliances/debian.gns3a b/gns3server/appliances/debian.gns3a
index 13f55861..4b98cc20 100644
--- a/gns3server/appliances/debian.gns3a
+++ b/gns3server/appliances/debian.gns3a
@@ -24,12 +24,12 @@
     },
     "images": [
         {
-            "filename": "debian-11-genericcloud-amd64-20220328-962.qcow2",
-            "version": "11.3",
-            "md5sum": "7cf51e23747898485971a656ac2eb96d",
-            "filesize": 253296640,
+            "filename": "debian-11-genericcloud-amd64-20220711-1073.qcow2",
+            "version": "11.4",
+            "md5sum": "e8fadf4bbf7324a2e2875a5ba00588e7",
+            "filesize": 253231104,
             "download_url": "https://cloud.debian.org/images/cloud/bullseye/",
-            "direct_download_url": "https://cloud.debian.org/images/cloud/bullseye/20220328-962/debian-11-genericcloud-amd64-20220328-962.qcow2"
+            "direct_download_url": "https://cloud.debian.org/images/cloud/bullseye/20220711-1073/debian-11-genericcloud-amd64-20220711-1073.qcow2"
         },
         {
             "filename": "debian-10-genericcloud-amd64-20220328-962.qcow2",
@@ -49,9 +49,9 @@
     ],
     "versions": [
         {
-            "name": "11.3",
+            "name": "11.4",
             "images": {
-                "hda_disk_image": "debian-11-genericcloud-amd64-20220328-962.qcow2",
+                "hda_disk_image": "debian-11-genericcloud-amd64-20220711-1073.qcow2",
                 "cdrom_image": "debian-cloud-init-data.iso"
             }
         },
diff --git a/gns3server/appliances/exos.gns3a b/gns3server/appliances/exos.gns3a
index 6d596124..4b67b8ac 100644
--- a/gns3server/appliances/exos.gns3a
+++ b/gns3server/appliances/exos.gns3a
@@ -27,7 +27,14 @@
         "options": "-cpu core2duo"
     },
     "images": [
-		{
+	{
+            "filename": "EXOS-VM_v32.1.1.6.qcow2",
+            "version": "32.1.1.6",
+            "md5sum": "48868bbcb4255d6365049b5941dd2af7",
+            "filesize": 231211008,
+            "direct_download_url": "https://akamai-ep.extremenetworks.com/Extreme_P/github-en/Virtual_EXOS/EXOS-VM_v32.1.1.6.qcow2"
+        },
+	{
             "filename": "EXOS-VM_v31.7.1.4.qcow2",
             "version": "31.7.1.4",
             "md5sum": "a70e4fa3bc361434237ad12937aaf0fb",
@@ -106,6 +113,12 @@
         }
     ],
     "versions": [
+        {
+            "name": "32.1.1.6",
+            "images": {
+                "hda_disk_image": "EXOS-VM_v32.1.1.6.qcow2"
+            }
+        },
         {
             "name": "31.7.1.4",
             "images": {
diff --git a/gns3server/appliances/huawei-ar1kv.gns3a b/gns3server/appliances/huawei-ar1kv.gns3a
index fdb1c9d1..f98698a7 100644
--- a/gns3server/appliances/huawei-ar1kv.gns3a
+++ b/gns3server/appliances/huawei-ar1kv.gns3a
@@ -11,7 +11,7 @@
     "status": "experimental",
     "availability": "service-contract",
     "maintainer": "none",
-    "maintainer_email": "none",
+    "maintainer_email": "",
     "usage": "Default user is super, default password is super.",
     "port_name_format": "GigabitEthernet0/0/{0}",
     "qemu": {
diff --git a/gns3server/appliances/huawei-ce12800.gns3a b/gns3server/appliances/huawei-ce12800.gns3a
index cf5cf6fb..8626d8cb 100644
--- a/gns3server/appliances/huawei-ce12800.gns3a
+++ b/gns3server/appliances/huawei-ce12800.gns3a
@@ -10,7 +10,7 @@
     "status": "experimental",
     "availability": "service-contract",
     "maintainer": "none",
-    "maintainer_email": "none",
+    "maintainer_email": "",
     "port_name_format": "GE1/0/{0}",
     "qemu": {
         "adapter_type": "e1000",
diff --git a/gns3server/appliances/huawei-ne40e.gns3a b/gns3server/appliances/huawei-ne40e.gns3a
index 8a039a7c..4248f204 100644
--- a/gns3server/appliances/huawei-ne40e.gns3a
+++ b/gns3server/appliances/huawei-ne40e.gns3a
@@ -11,7 +11,7 @@
     "status": "experimental",
     "availability": "service-contract",
     "maintainer": "none",
-    "maintainer_email": "none",
+    "maintainer_email": "",
     "first_port_name": "eth0",
     "port_name_format": "Ethernet1/0/{0}",
     "qemu": {
diff --git a/gns3server/appliances/huawei-usg6kv.gns3a b/gns3server/appliances/huawei-usg6kv.gns3a
index f2d0506c..010a4039 100644
--- a/gns3server/appliances/huawei-usg6kv.gns3a
+++ b/gns3server/appliances/huawei-usg6kv.gns3a
@@ -11,7 +11,7 @@
     "status": "experimental",
     "availability": "service-contract",
     "maintainer": "none",
-    "maintainer_email": "none",
+    "maintainer_email": "",
     "usage": "Default password is admin. Default username and password for web is admin/Admin@123.",
     "first_port_name": "GigabitEthernet0/0/0",
     "port_name_format": "GigabitEthernet1/0/{0}",
diff --git a/gns3server/appliances/juniper-vmx-vfp.gns3a b/gns3server/appliances/juniper-vmx-vfp.gns3a
index 626a3c3c..11708d3c 100644
--- a/gns3server/appliances/juniper-vmx-vfp.gns3a
+++ b/gns3server/appliances/juniper-vmx-vfp.gns3a
@@ -12,13 +12,13 @@
     "status": "experimental",
     "maintainer": "none",
     "maintainer_email": "developers@gns3.net",
-    "usage": "Initial username is root, password is root.\n",
+    "usage": "Connect VCP by port Eth1.\nData port ge/xe-x/0/0 to ge/xe-x/0/9 mapping to Eth3 to Eth12.\nInitial username is root, password is root.\n",
     "symbol": "juniper-vmx.svg",
     "first_port_name": "Eth0",
     "port_name_format": "Eth{port1}",
     "qemu": {
         "adapter_type": "virtio-net-pci",
-        "adapters": 12,
+        "adapters": 13,
         "ram": 4096,
         "hda_disk_interface": "ide",
         "arch": "x86_64",
diff --git a/gns3server/appliances/juniper-vrr.gns3a b/gns3server/appliances/juniper-vrr.gns3a
index f1892c30..acfe6a9c 100644
--- a/gns3server/appliances/juniper-vrr.gns3a
+++ b/gns3server/appliances/juniper-vrr.gns3a
@@ -28,6 +28,18 @@
         "options": "-nographic -enable-kvm"
     },
     "images": [
+        {
+            "filename": "junos-x86-64-20.4R3.8.img",
+            "version": "20.4R3.8-KVM",
+            "md5sum": "69638ba0ad83d7a99a28b658b1dd8def",
+            "filesize": 2773090304
+        },
+        {
+            "filename": "metadata.img",
+            "version": "20.4R3.8-KVM",
+            "md5sum": "ae4e3562aa389929476d82420c79d511",
+            "filesize": 393216
+        },
         {
             "filename": "junos-x86-64-20.3R1.8.img",
             "version": "20.3R1.8-KVM",
@@ -42,6 +54,13 @@
         }
     ],
     "versions": [
+        {
+            "name": "20.4R3.8-KVM",
+            "images": {
+                "hda_disk_image": "junos-x86-64-20.4R3.8.img",
+                "hdb_disk_image": "metadata.img"
+            }
+        },
         {
             "name": "20.3R1.8-KVM",
             "images": {
diff --git a/gns3server/appliances/mikrotik-chr.gns3a b/gns3server/appliances/mikrotik-chr.gns3a
index 4175e369..69092601 100644
--- a/gns3server/appliances/mikrotik-chr.gns3a
+++ b/gns3server/appliances/mikrotik-chr.gns3a
@@ -28,81 +28,81 @@
     },
     "images": [
         {
-            "filename": "chr-7.1rc7.img",
-            "version": "7.1rc7",
-            "md5sum": "04bc0ae1e5fbbda1522135bc57cf6560",
+            "filename": "chr-7.4rc2.img",
+            "version": "7.4rc2",
+            "md5sum": "ddb107c95cc7d231f8d8bbdb4eebdab6",
             "filesize": 134217728,
             "download_url": "http://www.mikrotik.com/download",
-            "direct_download_url": "https://download.mikrotik.com/routeros/7.1rc7/chr-7.1rc7.img.zip",
+            "direct_download_url": "https://download.mikrotik.com/routeros/7.4rc2/chr-7.4rc2.img.zip",
             "compression": "zip"
         },
         {
-            "filename": "chr-7.1.img",
-            "version": "7.1",
-            "md5sum": "41545bc7b55717fe5bb1e489ee39ca45",
+            "filename": "chr-7.3.1.img",
+            "version": "7.3.1",
+            "md5sum": "99f8ea75f8b745a8bf5ca3cc1bd325e3",
             "filesize": 134217728,
             "download_url": "http://www.mikrotik.com/download",
-            "direct_download_url": "https://download.mikrotik.com/routeros/7.1/chr-7.1.img.zip",
+            "direct_download_url": "https://download.mikrotik.com/routeros/7.3.1/chr-7.3.1.img.zip",
             "compression": "zip"
         },
         {
-            "filename": "chr-6.49rc2.img",
-            "version": "6.49rc2",
-            "md5sum": "e1088f8f64ac3d6ecf2e56ac96261226",
-            "filesize": 67108864,
+            "filename": "chr-7.1.5.img",
+            "version": "7.1.5",
+            "md5sum": "9c0be05f891df2b1400bdae5e719898e",
+            "filesize": 134217728,
             "download_url": "http://www.mikrotik.com/download",
-            "direct_download_url": "https://download.mikrotik.com/routeros/6.49rc2/chr-6.49rc2.img.zip",
+            "direct_download_url": "https://download.mikrotik.com/routeros/7.1.5/chr-7.1.5.img.zip",
             "compression": "zip"
         },
         {
-            "filename": "chr-6.49.1.img",
-            "version": "6.49.1",
-            "md5sum": "6c896c4c853de99f2ea77f0f4b102261",
+            "filename": "chr-6.49.6.img",
+            "version": "6.49.6",
+            "md5sum": "ae27d38acc9c4dcd875e0f97bcae8d97",
             "filesize": 67108864,
             "download_url": "http://www.mikrotik.com/download",
-            "direct_download_url": "https://download.mikrotik.com/routeros/6.49.1/chr-6.49.1.img.zip",
+            "direct_download_url": "https://download.mikrotik.com/routeros/6.49.6/chr-6.49.6.img.zip",
             "compression": "zip"
         },
         {
-            "filename": "chr-6.48.5.img",
-            "version": "6.48.5",
-            "md5sum": "d14debd4cd989f16f695b5b075960703",
+            "filename": "chr-6.48.6.img",
+            "version": "6.48.6",
+            "md5sum": "875574a561570227ff8f395aabe478c6",
             "filesize": 67108864,
             "download_url": "http://www.mikrotik.com/download",
-            "direct_download_url": "https://download.mikrotik.com/routeros/6.48.5/chr-6.48.5.img.zip",
+            "direct_download_url": "https://download.mikrotik.com/routeros/6.48.6/chr-6.48.6.img.zip",
             "compression": "zip"
         }
     ],
     "versions": [
         {
-            "name": "7.1rc7",
+            "name": "7.4rc2",
             "images": {
-                "hda_disk_image": "chr-7.1rc7.img"
+                "hda_disk_image": "chr-7.4rc2.img"
             }
         },
         {
-            "name": "7.1",
+            "name": "7.3.1",
             "images": {
-                "hda_disk_image": "chr-7.1.img"
+                "hda_disk_image": "chr-7.3.1.img"
             }
         },
         {
-            "name": "6.49rc2",
+            "name": "7.1.5",
             "images": {
-                "hda_disk_image": "chr-6.49rc2.img"
+                "hda_disk_image": "chr-7.1.5.img"
             }
         },
         {
-            "name": "6.49.1",
+            "name": "6.49.6",
             "images": {
-                "hda_disk_image": "chr-6.49.1.img"
+                "hda_disk_image": "chr-6.49.6.img"
             }
         },
         {
-            "name": "6.48.5",
+            "name": "6.48.6",
             "images": {
-                "hda_disk_image": "chr-6.48.5.img"
+                "hda_disk_image": "chr-6.48.6.img"
             }
         }
     ]
-}
+}
\ No newline at end of file
diff --git a/gns3server/appliances/netem.gns3a b/gns3server/appliances/netem.gns3a
index 85302f39..ce071fa8 100644
--- a/gns3server/appliances/netem.gns3a
+++ b/gns3server/appliances/netem.gns3a
@@ -29,8 +29,8 @@
             "version": "0.4",
             "md5sum": "e678698c97804901c7a53f6b68c8b861",
             "filesize": 26476544,
-            "download_url": "https://www.b-ehlers.de/projects/netem/index.html",
-            "direct_download_url": "https://www.b-ehlers.de/projects/netem/NETem-v4.qcow2"
+            "download_url": "https://sourceforge.net/projects/gns-3/files/Qemu%20Appliances/",
+            "direct_download_url": "https://sourceforge.net/projects/gns-3/files/Qemu%20Appliances/NETem-v4.qcow2/download"
         }
     ],
     "versions": [
diff --git a/gns3server/appliances/ubuntu-server.gns3a b/gns3server/appliances/ubuntu-server.gns3a
index 13cabbed..534be61c 100644
--- a/gns3server/appliances/ubuntu-server.gns3a
+++ b/gns3server/appliances/ubuntu-server.gns3a
@@ -11,7 +11,7 @@
     "registry_version": 3,
     "status": "stable",
     "maintainer": "Mohamad Siblini",
-    "maintainer_email": "https://www.ictkin.com/contact",
+    "maintainer_email": "info@ictkin.com",
     "usage": "Username: gns3\nPassword: gns3 | MD5: 435f15a54f7f673e302ad26f05226e0e",
     "port_name_format": "ens{0}",
     "qemu": {