diff --git a/src/webui.cpp b/src/webui.cpp
index 18b0239..40ccb70 100644
--- a/src/webui.cpp
+++ b/src/webui.cpp
@@ -429,6 +429,7 @@ WebUI::WebUI(Settings *settings, LED *statusLED, SysInfo *sysInfo, UpdateCheck *
 void WebUI::start()
 {
     httpd_config_t config = HTTPD_DEFAULT_CONFIG();
+    config.lru_purge_enable = true;
     config.max_uri_handlers = 10;
     config.uri_match_fn = httpd_uri_match_wildcard;
 
diff --git a/version.txt b/version.txt
index afaf360..7f20734 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-1.0.0
\ No newline at end of file
+1.0.1
\ No newline at end of file
diff --git a/webui/src/settings.vue b/webui/src/settings.vue
index 50d7f88..999415d 100644
--- a/webui/src/settings.vue
+++ b/webui/src/settings.vue
@@ -157,9 +157,13 @@ import {
   maxLength,
   numeric,
   ipAddress,
-  sameAs
+  sameAs,
+  helpers
 } from "vuelidate/lib/validators";
 
+const hostname = helpers.regex('hostname', /^[a-zA-Z0-9_-]{1,63}$/)
+const domainname = helpers.regex('domainname', /^([a-zA-Z0-9_-]{1,63}\.)*[a-zA-Z0-9_-]{1,63}$/)
+
 import VueI18n from "vue-i18n";
 Vue.use(VueI18n);
 
@@ -273,6 +277,7 @@ export default {
     },
     hostname: {
       required,
+      hostname,
       maxLength: maxLength(32)
     },
     localIP: {
@@ -295,7 +300,8 @@ export default {
       ipAddress
     },
     ntpServer: {
-      required: requiredIf("isNtpActived")
+      required: requiredIf("isNtpActived"),
+      domainname
     },
     dcfOffset: {
       required: requiredIf("isDcfActived"),
@@ -322,7 +328,7 @@ export default {
       this.$store
         .dispatch("settings/save", {
           adminPassword: self.adminPassword,
-          hostname: self.hostname + "2",
+          hostname: self.hostname,
           useDHCP: self.useDHCP,
           localIP: self.localIP,
           netmask: self.netmask,