diff --git a/src/common/core/blacklist/plugin.json b/src/common/core/blacklist/plugin.json
index a27f35f2..52bfbde5 100644
--- a/src/common/core/blacklist/plugin.json
+++ b/src/common/core/blacklist/plugin.json
@@ -20,7 +20,7 @@
       "help": "List of IP/network, separated with spaces, to block.",
       "id": "blacklist-ip",
       "label": "Blacklist IP/network",
-      "regex": "^( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})(\\/([1-2][0-9]?|3[0-2]?|[04-9]))?|(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d))(\\/(12[0-8]|1[01][0-9]|[0-9][0-9]?))?)(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
+      "regex": "^(?! )( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})(\\/([1-2][0-9]?|3[0-2]?|[04-9]))?|(([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z{0,4}){0,4}%[0-9a-zA-Z]+|::(ffff(:0{1,4})?:)?((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d))(\\/(12[0-8]|1[01][0-9]|[0-9][0-9]?))?)(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
       "type": "text"
     },
     "BLACKLIST_IP_URLS": {
@@ -119,7 +119,7 @@
       "help": "List of IP/network, separated with spaces, to ignore in the blacklist.",
       "id": "blacklist-ignore-ip",
       "label": "Blacklist ignore IP/network",
-      "regex": "^( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})(\\/([1-2][0-9]?|3[0-2]?|[04-9]))?|(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d))(\\/(12[0-8]|1[01][0-9]|[0-9][0-9]?))?)(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
+      "regex": "^(?! )( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})(\\/([1-2][0-9]?|3[0-2]?|[04-9]))?|(([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z{0,4}){0,4}%[0-9a-zA-Z]+|::(ffff(:0{1,4})?:)?((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d))(\\/(12[0-8]|1[01][0-9]|[0-9][0-9]?))?)(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
       "type": "text"
     },
     "BLACKLIST_IGNORE_IP_URLS": {
diff --git a/src/common/core/greylist/plugin.json b/src/common/core/greylist/plugin.json
index 05b22a0a..25777544 100644
--- a/src/common/core/greylist/plugin.json
+++ b/src/common/core/greylist/plugin.json
@@ -20,7 +20,7 @@
       "help": "List of IP/network, separated with spaces, to put into the greylist.",
       "id": "greylist-ip",
       "label": "Greylist IP/network",
-      "regex": "^( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})(\\/([1-2][0-9]?|3[0-2]?|[04-9]))?|(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d))(\\/(12[0-8]|1[01][0-9]|[0-9][0-9]?))?)(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
+      "regex": "^(?! )( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})(\\/([1-2][0-9]?|3[0-2]?|[04-9]))?|(([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z{0,4}){0,4}%[0-9a-zA-Z]+|::(ffff(:0{1,4})?:)?((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d))(\\/(12[0-8]|1[01][0-9]|[0-9][0-9]?))?)(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
       "type": "text"
     },
     "GREYLIST_IP_URLS": {
diff --git a/src/common/core/realip/plugin.json b/src/common/core/realip/plugin.json
index f47320c6..01d93e44 100644
--- a/src/common/core/realip/plugin.json
+++ b/src/common/core/realip/plugin.json
@@ -29,7 +29,7 @@
       "help": "List of trusted IPs / networks, separated with spaces, where proxied requests come from.",
       "id": "real-ip-from",
       "label": "Real IP from",
-      "regex": "^(?! )( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})(\\/([1-2][0-9]?|3[0-2]?|[04-9]))?|(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d))(\\/(12[0-8]|1[01][0-9]|[0-9][0-9]?))?)(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
+      "regex": "^(?! )( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})(\\/([1-2][0-9]?|3[0-2]?|[04-9]))?|(([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z{0,4}){0,4}%[0-9a-zA-Z]+|::(ffff(:0{1,4})?:)?((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d))(\\/(12[0-8]|1[01][0-9]|[0-9][0-9]?))?)(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
       "type": "text"
     },
     "REAL_IP_FROM_URLS": {
diff --git a/src/common/core/whitelist/plugin.json b/src/common/core/whitelist/plugin.json
index 8828cc04..0cbacb2d 100644
--- a/src/common/core/whitelist/plugin.json
+++ b/src/common/core/whitelist/plugin.json
@@ -20,7 +20,7 @@
       "help": "List of IP/network, separated with spaces, to put into the whitelist.",
       "id": "whitelist-ip",
       "label": "Whitelist IP/network",
-      "regex": "^( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})(\\/([1-2][0-9]?|3[0-2]?|[04-9]))?|(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d))(\\/(12[0-8]|1[01][0-9]|[0-9][0-9]?))?)(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
+      "regex": "^(?! )( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})(\\/([1-2][0-9]?|3[0-2]?|[04-9]))?|(([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z{0,4}){0,4}%[0-9a-zA-Z]+|::(ffff(:0{1,4})?:)?((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d))(\\/(12[0-8]|1[01][0-9]|[0-9][0-9]?))?)(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
       "type": "text"
     },
     "WHITELIST_IP_URLS": {
diff --git a/src/common/settings.json b/src/common/settings.json
index 19e9d9d7..fcfe4732 100644
--- a/src/common/settings.json
+++ b/src/common/settings.json
@@ -114,7 +114,7 @@
     "help": "DNS addresses of resolvers to use.",
     "id": "dns-resolvers",
     "label": "DNS resolvers",
-    "regex": "^( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})|(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)))(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
+    "regex": "^(?! )( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})(\\/([1-2][0-9]?|3[0-2]?|[04-9]))?|(([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z{0,4}){0,4}%[0-9a-zA-Z]+|::(ffff(:0{1,4})?:)?((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d))(\\/(12[0-8]|1[01][0-9]|[0-9][0-9]?))?)(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
     "type": "text"
   },
   "DATASTORE_MEMORY_SIZE": {
@@ -159,7 +159,7 @@
     "help": "List of IP/network allowed to contact the API.",
     "id": "api-whitelist-ip",
     "label": "API whitelist IP",
-    "regex": "^( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})(\\/([1-2][0-9]?|3[0-2]?|[04-9]))?|(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d)\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}\\d){0,1}\\d))(\\/(12[0-8]|1[01][0-9]|[0-9][0-9]?))?)(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
+    "regex": "^(?! )( *(((\\b25[0-5]|\\b2[0-4]\\d|\\b[01]?\\d\\d?)(\\.(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)){3})(\\/([1-2][0-9]?|3[0-2]?|[04-9]))?|(([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]Z{0,4}){0,4}%[0-9a-zA-Z]+|::(ffff(:0{1,4})?:)?((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d)|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1?\\d)?\\d)\\.){3}(25[0-5]|(2[0-4]|1?\\d)?\\d))(\\/(12[0-8]|1[01][0-9]|[0-9][0-9]?))?)(?!.*\\D\\2([^\\d\\/]|$)) *)*$",
     "type": "text"
   },
   "AUTOCONF_MODE": {