diff --git a/install.sh b/install.sh
index bba883f..52fc4b8 100755
--- a/install.sh
+++ b/install.sh
@@ -7,6 +7,8 @@ DOWNLOAD_DIR="/tmp/podkop"
 mkdir -p "$DOWNLOAD_DIR"
 
 main() {
+    check_system
+
     wget -qO- "$REPO" | grep -o 'https://[^"]*\.ipk' | while read -r url; do
         filename=$(basename "$url")
         echo "Download $filename..."
@@ -384,4 +386,24 @@ wg_awg_setup() {
     handler_network_restart
 }
 
+check_system() {
+    # Get router model
+    MODEL=$(cat /tmp/sysinfo/model)
+    echo "Router model: $MODEL"
+
+    # Check available space
+    AVAILABLE_SPACE=$(df /tmp | awk 'NR==2 {print $4}')
+    REQUIRED_SPACE=20480 # 20MB in KB
+
+    echo "Available space: $((AVAILABLE_SPACE/1024))MB"
+    echo "Required space: $((REQUIRED_SPACE/1024))MB"
+
+    if [ "$AVAILABLE_SPACE" -lt "$REQUIRED_SPACE" ]; then
+        echo "Error: Insufficient space in /tmp"
+        echo "Available: $((AVAILABLE_SPACE/1024))MB"
+        echo "Required: $((REQUIRED_SPACE/1024))MB"
+        exit 1
+    fi
+}
+
 main
\ No newline at end of file
diff --git a/luci-app-podkop/htdocs/luci-static/resources/view/podkop/podkop.js b/luci-app-podkop/htdocs/luci-static/resources/view/podkop/podkop.js
index 49c52cb..c7ff872 100644
--- a/luci-app-podkop/htdocs/luci-static/resources/view/podkop/podkop.js
+++ b/luci-app-podkop/htdocs/luci-static/resources/view/podkop/podkop.js
@@ -765,6 +765,25 @@ return view.extend({
                 });
         };
 
+        o = s.taboption('diagnostics', form.Button, '_list_update');
+        o.title = _('Update lists');
+        o.description = _('Update all lists in config');
+        o.inputtitle = _('Update lists');
+        o.inputstyle = 'apply';
+        o.onclick = function () {
+            fs.exec('/etc/init.d/podkop', ['list_update']);
+
+            ui.showModal(_('List Update'), [
+                E('p', {}, _('Lists will be updated in background. You can check the progress in system logs.')),
+                E('div', { class: 'right' }, [
+                    E('button', {
+                        'class': 'btn',
+                        'click': ui.hideModal
+                    }, _('Close'))
+                ])
+            ]);
+        };
+
         return m.render();
     }
 });
\ No newline at end of file
diff --git a/podkop/files/etc/init.d/podkop b/podkop/files/etc/init.d/podkop
index b624fd7..18c5e78 100755
--- a/podkop/files/etc/init.d/podkop
+++ b/podkop/files/etc/init.d/podkop
@@ -20,6 +20,16 @@ EXTRA_HELP="        list_update     Updating domain and subnet lists
 
 [ ! -L /usr/sbin/podkop ] && ln -s /etc/init.d/podkop /usr/sbin/podkop
 
+GITHUB_RAW_URL="https://raw.githubusercontent.com/itdoginfo/allow-domains/main"
+DOMAINS_RU_INSIDE="${GITHUB_RAW_URL}/Russia/inside-dnsmasq-nfset.lst"
+DOMAINS_RU_OUTSIDE="${GITHUB_RAW_URL}/Russia/outside-dnsmasq-nfset.lst" 
+DOMAINS_UA="${GITHUB_RAW_URL}/Ukraine/inside-dnsmasq-nfset.lst"
+DOMAINS_YOUTUBE="${GITHUB_RAW_URL}/Services/youtube.lst"
+SUBNETS_TWITTER="${GITHUB_RAW_URL}/Subnets/IPv4/Twitter.lst"
+SUBNETS_META="${GITHUB_RAW_URL}/Subnets/IPv4/Meta.lst"
+SUBNETS_DISCORD="${GITHUB_RAW_URL}/Subnets/IPv4/Discord.lst"
+SING_BOX_CONFIG="/etc/sing-box/config.json"
+
 config_get update_interval "main" "update_interval" "0 4 * * *"
 cron_job="${update_interval} /etc/init.d/podkop list_update"
 
@@ -116,10 +126,10 @@ start_service() {
                 config_get proxy_string main "proxy_string"
                 if [[ "$proxy_string" =~ ^ss:// ]]; then
                     sing_box_config_shadowsocks "$proxy_string" "1602"
-                    jq '.outbounds[0] + {tag: "main"} | {outbounds: [.]}' /etc/sing-box/config.json > "$outbound_main"
+                    jq '.outbounds[0] + {tag: "main"} | {outbounds: [.]}' $SING_BOX_CONFIG > "$outbound_main"
                 elif [[ "$proxy_string" =~ ^vless:// ]]; then
                     sing_box_config_vless "$proxy_string" "1602"
-                    jq '.outbounds[0] + {tag: "main"} | {outbounds: [.]}' /etc/sing-box/config.json > "$outbound_main"
+                    jq '.outbounds[0] + {tag: "main"} | {outbounds: [.]}' $SING_BOX_CONFIG > "$outbound_main"
                 else
                     log "Unsupported proxy type or missing configuration for main"
                     rm -f "$outbound_main" "$outbound_second"
@@ -144,10 +154,10 @@ start_service() {
                 config_get proxy_string "second" "second_proxy_string"
                 if [[ "$proxy_string" =~ ^ss:// ]]; then
                     sing_box_config_shadowsocks "$proxy_string" "1603"
-                    jq '.outbounds[0] + {tag: "second"} | {outbounds: [.]}' /etc/sing-box/config.json > "$outbound_second"
+                    jq '.outbounds[0] + {tag: "second"} | {outbounds: [.]}' $SING_BOX_CONFIG > "$outbound_second"
                 elif [[ "$proxy_string" =~ ^vless:// ]]; then
                     sing_box_config_vless "$proxy_string" "1603"
-                    jq '.outbounds[0] + {tag: "second"} | {outbounds: [.]}' /etc/sing-box/config.json > "$outbound_second"
+                    jq '.outbounds[0] + {tag: "second"} | {outbounds: [.]}' $SING_BOX_CONFIG > "$outbound_second"
                 else
                     log "Unsupported proxy type or missing configuration for second"
                     rm -f "$outbound_main" "$outbound_second"
@@ -187,7 +197,7 @@ start_service() {
                     ],
                     "auto_detect_interface": true
                 }
-            }' "$outbound_main" "$outbound_second" > /etc/sing-box/config.json
+            }' "$outbound_main" "$outbound_second" > $SING_BOX_CONFIG
 
             rm -f "$outbound_main" "$outbound_second"
 
@@ -273,7 +283,7 @@ start_service() {
         jq '.experimental.clash_api = {
             "external_ui": "ui",
             "external_controller": "0.0.0.0:9090"
-        }' /etc/sing-box/config.json >/tmp/sing-box-config-tmp.json && mv /tmp/sing-box-config-tmp.json /etc/sing-box/config.json
+        }' $SING_BOX_CONFIG >/tmp/sing-box-config-tmp.json && mv /tmp/sing-box-config-tmp.json $SING_BOX_CONFIG
         /etc/init.d/sing-box restart
     fi
 
@@ -285,7 +295,7 @@ start_service() {
             "listen": "0.0.0.0",
             "listen_port": 2080,
             "set_system_proxy": false
-        }]' /etc/sing-box/config.json >/tmp/sing-box-config-tmp.json && mv /tmp/sing-box-config-tmp.json /etc/sing-box/config.json
+        }]' $SING_BOX_CONFIG >/tmp/sing-box-config-tmp.json && mv /tmp/sing-box-config-tmp.json $SING_BOX_CONFIG
         /etc/init.d/sing-box restart
     fi
 
@@ -664,19 +674,15 @@ add_mark() {
 lists_domains_download() {
     local URL="$1"
 
-    RU_INSIDE_DOMAINS=https://raw.githubusercontent.com/itdoginfo/allow-domains/main/Russia/inside-dnsmasq-nfset.lst
-    RU_OUTSIDE_DOMAINS=https://raw.githubusercontent.com/itdoginfo/allow-domains/main/Russia/outside-dnsmasq-nfset.lst
-    UA_DOMAINS=https://raw.githubusercontent.com/itdoginfo/allow-domains/main/Ukraine/inside-dnsmasq-nfset.lst
-
     case "$URL" in
     "ru_inside")
-        URL=$RU_INSIDE_DOMAINS
+        URL=$DOMAINS_RU_INSIDE
         ;;
     "ru_outside")
-        URL=$RU_OUTSIDE_DOMAINS
+        URL=$DOMAINS_RU_OUTSIDE
         ;;
     "ua")
-        URL=$UA_DOMAINS
+        URL=$DOMAINS_UA
         ;;
     *)
         log "Unidentified list of domains"
@@ -686,10 +692,12 @@ lists_domains_download() {
 
     count=0
     while true; do
-        if curl -m 3 github.com; then
-            curl -f $URL --output /tmp/dnsmasq.d/podkop-domains.lst
-            sed -i 's/fw4#vpn_domains/PodkopTable#podkop_domains/g' /tmp/dnsmasq.d/podkop-domains.lst
-            return 0
+        if ping -c 1 -W 3 github.com >/dev/null 2>&1; then
+            wget -q -O /tmp/dnsmasq.d/podkop-domains.lst $URL
+            if [ $? -eq 0 ]; then
+                sed -i 's/fw4#vpn_domains/PodkopTable#podkop_domains/g' /tmp/dnsmasq.d/podkop-domains.lst
+                return 0
+            fi
         else
             log "GitHub is not available. Check the internet availability [$count sec]"
             count=$((count + 1))
@@ -712,11 +720,9 @@ lists_domains_download() {
 lists_services_download() {
     local URL="$1"
 
-    YOUTUBE=https://raw.githubusercontent.com/itdoginfo/allow-domains/refs/heads/main/Services/youtube.lst
-
     case "$URL" in
     "youtube")
-        URL=$YOUTUBE
+        URL=$DOMAINS_YOUTUBE
         ;;
     *)
         log "Unidentified list of domains"
@@ -726,11 +732,13 @@ lists_services_download() {
 
     count=0
     while true; do
-        if curl -m 3 github.com; then
-            curl -f $URL --output /tmp/dnsmasq.d/podkop2-domains.lst
-            delist_downloaded_domains
-            sed -i 's/.*/nftset=\/&\/4#inet#PodkopTable#podkop2_domains/g' /tmp/dnsmasq.d/podkop2-domains.lst
-            return 0
+        if ping -c 1 -W 3 github.com >/dev/null 2>&1; then
+            wget -q -O /tmp/dnsmasq.d/podkop2-domains.lst $URL
+            if [ $? -eq 0 ]; then
+                delist_downloaded_domains
+                sed -i 's/.*/nftset=\/&\/4#inet#PodkopTable#podkop2_domains/g' /tmp/dnsmasq.d/podkop2-domains.lst
+                return 0
+            fi
         else
             log "GitHub is not available. Check the internet availability [$count sec]"
             count=$((count + 1))
@@ -751,33 +759,31 @@ lists_services_download() {
 }
 
 list_subnets_download() {
-    TWITTER_SUBNETS=https://raw.githubusercontent.com/itdoginfo/allow-domains/main/Subnets/IPv4/Twitter.lst
-    META_SUBNETS=https://raw.githubusercontent.com/itdoginfo/allow-domains/main/Subnets/IPv4/Meta.lst
-    DISCORD_SUBNETS=https://raw.githubusercontent.com/itdoginfo/allow-domains/refs/heads/main/Subnets/IPv4/Discord.lst
     local URL="$1"
 
     case "$URL" in
     "twitter")
-        URL=$TWITTER_SUBNETS
+        URL=$SUBNETS_TWITTER
         ;;
     "meta")
-        URL=$META_SUBNETS
+        URL=$SUBNETS_META
         ;;
     "discord")
-        URL=$DISCORD_SUBNETS
+        URL=$SUBNETS_DISCORD
         ;;
     *)
         log "Custom URL for subnet"
-        if curl --output /dev/null --silent --head --fail "$URL"; then
+        if wget -q --spider "$URL"; then
             log "URL is valid"
         else
             log "URL $URL is not valid"
+            return
         fi
         ;;
     esac
 
     local filename=$(basename "$URL")
-    curl -f "$URL" --output "/tmp/podkop/$filename"
+    wget -q -O "/tmp/podkop/$filename" "$URL"
     while IFS= read -r subnet; do
         nft add element inet PodkopTable podkop_subnets { $subnet }
     done <"/tmp/podkop/$filename"
@@ -810,7 +816,7 @@ list_custom_download_domains_create() {
     local config="/tmp/dnsmasq.d/${name}-${filename}.lst"
 
     rm -f "$config"
-    curl -f "$URL" --output "/tmp/podkop/${filename}"
+    wget -q -O "/tmp/podkop/${filename}" "$URL"
     while IFS= read -r domain; do
         echo "nftset=/$domain/4#inet#PodkopTable#${name}_domains" >>$config
     done <"/tmp/podkop/$filename"
@@ -915,7 +921,7 @@ sing_box_config_outbound_json() {
 }
 EOF
 
-    jq --argjson outbound "$json_config" '.outbounds += [$outbound]' /tmp/base_config.json > /etc/sing-box/config.json
+    jq --argjson outbound "$json_config" '.outbounds += [$outbound]' /tmp/base_config.json > $SING_BOX_CONFIG
     rm -f /tmp/base_config.json
 }
 
@@ -990,7 +996,7 @@ sing_box_config_shadowsocks() {
 }
 EOF
 
-    mv /tmp/ss_config.json /etc/sing-box/config.json
+    mv /tmp/ss_config.json $SING_BOX_CONFIG
 }
 
 sing_box_config_vless() {
@@ -1090,7 +1096,7 @@ sing_box_config_vless() {
                 "short_id": $sid
             }
         else . end
-    else . end' > /etc/sing-box/config.json
+    else . end' > $SING_BOX_CONFIG
 
     if [ $? -eq 0 ]; then
         echo "Config created successfully"
@@ -1101,7 +1107,7 @@ sing_box_config_vless() {
 }
 
 sing_box_config_check() {
-    if ! sing-box -c /etc/sing-box/config.json check >/dev/null 2>&1; then
+    if ! sing-box -c $SING_BOX_CONFIG check >/dev/null 2>&1; then
         log "Sing-box configuration is invalid"
         return
     fi
@@ -1113,18 +1119,26 @@ check_proxy() {
         return 1
     fi
 
-    # Проверка конфигурации
-    if [ ! -f /etc/sing-box/config.json ]; then
+    if [ ! -f $SING_BOX_CONFIG ]; then
         nolog "Configuration file not found"
         return 1
     fi
 
-    # Проверка валидности конфига
-    if ! sing-box -c /etc/sing-box/config.json check; then
+    if ! sing-box -c $SING_BOX_CONFIG check; then
         nolog "Invalid configuration"
         return 1
     fi
 
+    nolog "\nCurrent sing-box configuration (sensitive data masked):"
+
+    jq '
+        .outbounds[].uuid |= "MASKED-UUID" |
+        .outbounds[].server |= "MASKED-SERVER" |
+        if .outbounds[].tls.reality.public_key then
+            .outbounds[].tls.reality.public_key |= "MASKED-PUBLIC-KEY"
+        else . end
+    ' $SING_BOX_CONFIG
+    
     nolog "Checking sing-box proxy connection..."
 
     for attempt in `seq 1 5`; do
@@ -1133,7 +1147,8 @@ check_proxy() {
             :
         else
             nolog "Proxy check completed successfully"
-            echo "$response"
+            masked_ip=$(echo "$response" | sed 's/\([0-9]\+\)\.\([0-9]\+\)\.\([0-9]\+\)\.\([0-9]\+\)/XXX.\2.\3.\4/')
+            echo "$masked_ip"            
             return 0
         fi
     done
@@ -1173,27 +1188,18 @@ check_nft() {
 check_github() {
     nolog "Checking GitHub connectivity..."
     
-    # Проверка базового соединения с GitHub
-    if ! curl -m 3 -sf https://github.com >/dev/null 2>&1; then
+    if ! ping -c 1 -W 3 github.com >/dev/null 2>&1; then
         nolog "Error: Cannot connect to GitHub"
         return 1
     fi
     nolog "GitHub is accessible"
     
-    # Список URL для проверки
-    local urls="
-        https://raw.githubusercontent.com/itdoginfo/allow-domains/main/Russia/inside-dnsmasq-nfset.lst
-        https://raw.githubusercontent.com/itdoginfo/allow-domains/main/Russia/outside-dnsmasq-nfset.lst
-        https://raw.githubusercontent.com/itdoginfo/allow-domains/main/Ukraine/inside-dnsmasq-nfset.lst
-        https://raw.githubusercontent.com/itdoginfo/allow-domains/main/Services/youtube.lst
-        https://raw.githubusercontent.com/itdoginfo/allow-domains/main/Subnets/IPv4/Twitter.lst
-        https://raw.githubusercontent.com/itdoginfo/allow-domains/main/Subnets/IPv4/Meta.lst
-        https://raw.githubusercontent.com/itdoginfo/allow-domains/main/Subnets/IPv4/Discord.lst"
-    
     nolog "Checking lists availability:"
-    for url in $urls; do
+    for url in "$DOMAINS_RU_INSIDE" "$DOMAINS_RU_OUTSIDE" "$DOMAINS_UA" "$DOMAINS_YOUTUBE" \
+              "$SUBNETS_TWITTER" "$SUBNETS_META" "$SUBNETS_DISCORD"; do
         local list_name=$(basename "$url")
-        if curl -m 5 -sf "$url" >/dev/null 2>&1; then
+        wget -q -O /dev/null "$url"
+        if [ $? -eq 0 ]; then
             nolog "- $list_name: available"
         else
             nolog "- $list_name: not available"