diff --git a/frontend/Dockerfile b/frontend/Dockerfile
new file mode 100644
index 0000000..b990b97
--- /dev/null
+++ b/frontend/Dockerfile
@@ -0,0 +1,29 @@
+# Use the official Node.js image.
+FROM node:18 AS build
+
+# Set the working directory
+WORKDIR /app
+
+# Copy package.json and package-lock.json (or yarn.lock) to the working directory
+COPY package*.json ./
+
+# Install dependencies
+RUN npm install
+
+# Copy the rest of the application
+COPY . .
+
+# Build the application
+RUN npm run build
+
+# Start a new stage to serve the application
+FROM nginx:alpine
+
+# Copy the build output to Nginx's public folder
+COPY --from=build /app/dist /usr/share/nginx/html
+
+# Expose port 80
+EXPOSE 80
+
+# Start Nginx when the container runs
+CMD ["nginx", "-g", "daemon off;"]
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 6787a40..16d5099 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -8,6 +8,7 @@
       "name": "frontend",
       "version": "0.0.0",
       "dependencies": {
+        "crypto-js": "^4.2.0",
         "js-cookie": "^3.0.5",
         "react": "^19.2.0",
         "react-cookie": "^8.0.1",
@@ -15,6 +16,7 @@
       },
       "devDependencies": {
         "@eslint/js": "^9.33.0",
+        "@types/crypto-js": "^4.2.2",
         "@types/react": "^19.1.10",
         "@types/react-dom": "^19.1.7",
         "@vitejs/plugin-react": "^5.0.0",
@@ -1408,6 +1410,13 @@
         "@babel/types": "^7.28.2"
       }
     },
+    "node_modules/@types/crypto-js": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@types/crypto-js/-/crypto-js-4.2.2.tgz",
+      "integrity": "sha512-sDOLlVbHhXpAUAL0YHDUUwDZf3iN4Bwi4W6a0W0b+QcAezUbRtH4FVb+9J4h+XFPW7l/gQ9F8qC7P+Ec4k8QVQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/estree": {
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.8.tgz",
@@ -1978,6 +1987,12 @@
         "node": ">= 8"
       }
     },
+    "node_modules/crypto-js": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/crypto-js/-/crypto-js-4.2.0.tgz",
+      "integrity": "sha512-KALDyEYgpY+Rlob/iriUtjV6d5Eq+Y191A5g4UqLAi8CyGP9N1+FdVbkc1SxKc2r4YAYqG8JzO2KGL+AizD70Q==",
+      "license": "MIT"
+    },
     "node_modules/csstype": {
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.1.3.tgz",
diff --git a/frontend/package.json b/frontend/package.json
index d9c6477..970becf 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -10,6 +10,7 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "crypto-js": "^4.2.0",
     "js-cookie": "^3.0.5",
     "react": "^19.2.0",
     "react-cookie": "^8.0.1",
@@ -17,6 +18,7 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.33.0",
+    "@types/crypto-js": "^4.2.2",
     "@types/react": "^19.1.10",
     "@types/react-dom": "^19.1.7",
     "@vitejs/plugin-react": "^5.0.0",
diff --git a/frontend/src/components/Hosting.tsx b/frontend/src/components/Hosting.tsx
index a8c8b7c..a255700 100644
--- a/frontend/src/components/Hosting.tsx
+++ b/frontend/src/components/Hosting.tsx
@@ -65,7 +65,7 @@ function Hosting() {
                                 <tr key={id}>
                                     <td>{item.name}</td>
                                     <td>{item.capacity}</td>
-                                    <td>{<ReserveButton update={update} reservedBy={item.reservedBy} id={id} />}</td>
+                                    <td>{<ReserveButton update={update} reservedBy={item.reservedBy} id={Number(id)} />}</td>
                                 </tr>
                             ))}
                         </tbody>
diff --git a/frontend/src/components/InitialSetup.tsx b/frontend/src/components/InitialSetup.tsx
index da6eebf..54c31a9 100644
--- a/frontend/src/components/InitialSetup.tsx
+++ b/frontend/src/components/InitialSetup.tsx
@@ -7,25 +7,29 @@ import { useNotification } from '../NotificationContext';
 const InitialSetup = () => {
     const [cookie, setCookie] = useCookies();
     const [selectedName, setSelectedName] = useState<string | undefined>(cookie.userName);
-    const [token, setToken] = useState<string | undefined>(cookie.token)
+    const [token] = useState<string | undefined>(cookie.apiToken)
     const [isSubmitted, setIsSubmitted] = useState(false);
     const [password, setPassword] = useState('');
     const [isPasswordSet, setIsPasswordSet] = useState(false); // To track if password is set
-    const [isSignIn, setIsSignIn] = useState(false); // To track if it should prompt for sign-in
 
     const { userSet, passwordCreate, signUser, validToken } = useFetchUser(); // Destructure functions from the hook
     const notify = useNotification();
 
     useEffect(() => {
-        document.body.style.overflow = 'hidden';
-
-        return () => {
-            document.body.style.overflow = 'unset';
+        const validateToken = async () => {
+            const isTokenValid = await validToken(token, selectedName);
+            setIsSubmitted(isTokenValid);
         };
-    }, []);
+        
+        validateToken();
+        if (selectedName) {
+            checkUserPassword(selectedName)
+        }
+    }, [selectedName]); 
 
     const handleSelect = (event: React.ChangeEvent<HTMLSelectElement>) => {
         const name = event.target.value;
+        setCookie('userName', name, { path: '/' });
         setSelectedName(name);
         checkUserPassword(name);
     };
@@ -33,7 +37,6 @@ const InitialSetup = () => {
     const checkUserPassword = async (name: string) => {
         const passwordStatus = await userSet(name);
         setIsPasswordSet(passwordStatus);
-        setIsSignIn(!passwordStatus); // If password is not set, show sign-up
     };
 
     const handlePasswordCreate = async () => {
@@ -54,25 +57,17 @@ const InitialSetup = () => {
         setIsSubmitted(true);
     };
 
+    
     if (isSubmitted) {
         console.log('Selected', selectedName);
         return null; // or you can redirect to another component or page
     }
 
-    useEffect(() => {
-        const validateToken = async () => {
-            const isTokenValid = await validToken(token);
-            setIsSubmitted(isTokenValid);
-        };
-
-        validateToken();
-    }, [token]); 
-
     return (
         <div style={styles.container}>
             <h2 style={styles.title}>Выбери себя</h2>
             <select style={styles.dropdown} onChange={handleSelect} value={selectedName || ''}>
-                <option value="" disabled>Select your name</option>
+                <option value="" disabled>{(cookie.userName == undefined) ? 'Пятка' : cookie.userName}</option>
                 {GUESTS.map((name) => (
                     <option key={name} value={name}>
                         {name}
diff --git a/frontend/src/constants/constants.ts b/frontend/src/constants/constants.ts
index 1bd68ed..398a2a2 100644
--- a/frontend/src/constants/constants.ts
+++ b/frontend/src/constants/constants.ts
@@ -1,5 +1,5 @@
 
-export const API_URL = 'https://example.backend.com/hosting';
+export const API_URL = 'https://nyipyatki-backend.davydovcloud.com';
 export const GUESTS = [
     "Медведь",
     "Ксения",
diff --git a/frontend/src/utils/fetchHosting.tsx b/frontend/src/utils/fetchHosting.tsx
index 1e4026b..103d100 100644
--- a/frontend/src/utils/fetchHosting.tsx
+++ b/frontend/src/utils/fetchHosting.tsx
@@ -1,5 +1,6 @@
 import { useState, useEffect } from 'react';
 import type { Hosting } from '../types';
+import { API_URL } from '../constants/constants';
 
 const mockData: Hosting = {
     1: {
@@ -33,7 +34,7 @@ const useFetchHosting = () => {
         setLoading(true);
         setError(null);
         try {
-            const response = await fetch('/hosting');
+            const response = await fetch(`${API_URL}/hosting`);
             if (response.status != 200) {
                 throw new Error('Network response was not ok');
             }
@@ -48,7 +49,7 @@ const useFetchHosting = () => {
         setLoading(true);
         setError(null);
         try {
-            const response = await fetch(`/hosting/${id}`, {
+            const response = await fetch(`${API_URL}/hosting/${id}`, {
                 method: 'POST',
                 headers: {
                     'Content-Type': 'application/json',
diff --git a/frontend/src/utils/fetchUser.tsx b/frontend/src/utils/fetchUser.tsx
index 0cdafe3..832e52e 100644
--- a/frontend/src/utils/fetchUser.tsx
+++ b/frontend/src/utils/fetchUser.tsx
@@ -1,20 +1,13 @@
-import { useState } from 'react';
 import { useCookies } from 'react-cookie';
-
-interface User {
-    password?: string;
-}
-
-interface UserData {
-    [key: string]: User;
-}
+import { API_URL } from '../constants/constants';
+import { hashPassword } from './hashPassword';
 
 const useFetchUser = () => {
-    const [cookies, setCookie] = useCookies(['apiToken']);
+    const [, setCookie] = useCookies(['apiToken']);
 
     const userSet = async (userName: string): Promise<boolean> => {
         try {
-            const response = await fetch(`/users/isSet?userName=${encodeURIComponent(userName)}`);
+            const response = await fetch(`${API_URL}/users/isSet?userName=${encodeURIComponent(userName)}`);
             if (!response.ok) throw new Error(`HTTP error! status: ${response.status}`);
             const data = await response.json();
             return data; // Assuming the server returns true/false
@@ -28,12 +21,12 @@ const useFetchUser = () => {
         // Simple validation: password should not be empty and should have a minimum length
         if (!password || password.length < 6) {
             console.error('Password should be at least 6 characters long.');
-            return 'Password should be at least 6 characters long.';
+            return 'Пароль должен иметь, как минимум 6 символов';
         }
 
         try {
-            const hashedPassword = await hashPassword(password); // Implement this function to hash the password
-            const response = await fetch(`/users/createPassword`, {
+            const hashedPassword = hashPassword(password)
+            const response = await fetch(`${API_URL}/users/createPassword`, {
                 method: 'POST',
                 headers: {
                     'Content-Type': 'application/json',
@@ -61,8 +54,8 @@ const useFetchUser = () => {
 
     const signUser = async (userName: string, password: string): Promise<boolean> => {
         try {
-            const hashedPassword = await hashPassword(password); // Implement this function to hash the password
-            const response = await fetch(`/login`, {
+            const hashedPassword = hashPassword(password); // Implement this function to hash the password
+            const response = await fetch(`${API_URL}/login`, {
                 method: 'POST',
                 headers: {
                     'Content-Type': 'application/json',
@@ -88,36 +81,29 @@ const useFetchUser = () => {
         }
     };
 
-    const validToken = async (token: string | undefined): Promise<boolean> => {
+    const validToken = async (token: string | undefined, userName: string | undefined): Promise<boolean> => {
         try {
-            const response = await fetch(`/login/validateToken`, {
+            const response = await fetch(`${API_URL}/login/validateToken`, {
                 method: 'POST',
                 headers: {
                     'Content-Type': 'application/json',
                 },
                 body: JSON.stringify({
                     token,
+                    userName
                 }),
             });
 
             if (!response.ok) throw new Error(`HTTP error! status: ${response.status}`);
             const data = await response.json();
 
-            if (data.tokenValid) {
-                return true;
-            }
-            return false;
+            return data.tokenValid
         } catch (error) {
             console.error('Error validating token:', error);
             return false;
         }
     }
 
-    const hashPassword = async (password: string): Promise<string> => {
-        // Placeholder implementation, replace with actual hashing logic (e.g. bcrypt)
-        return Promise.resolve(password); // Just return the password for now
-    };
-
     return { userSet, passwordCreate, signUser, validToken };
 };
 
diff --git a/frontend/src/utils/hashPassword.tsx b/frontend/src/utils/hashPassword.tsx
new file mode 100644
index 0000000..10595f9
--- /dev/null
+++ b/frontend/src/utils/hashPassword.tsx
@@ -0,0 +1,10 @@
+// src/utils/passwordHasher.ts
+import SHA256 from 'crypto-js/sha256';
+/**
+ * Hashes a password using SHA-256.
+ * @param {string} password - The plain text password.
+ * @returns {string} - The hashed password in hex format.
+ */
+export const hashPassword = (password: string): string => {
+    return SHA256(password).toString(); // Returns the hash in hex format
+};
diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
index 8b0f57b..d54add8 100644
--- a/frontend/vite.config.ts
+++ b/frontend/vite.config.ts
@@ -4,4 +4,7 @@ import react from '@vitejs/plugin-react'
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [react()],
+  server: {
+    allowedHosts: ['nyipyatki-dev.davydovcloud.com'],
+  }
 })