diff --git a/lesson_03/header/address.hpp b/lesson_03/header/address.hpp
index 4fdf301..99f2772 100644
--- a/lesson_03/header/address.hpp
+++ b/lesson_03/header/address.hpp
@@ -9,6 +9,9 @@
 
 #include <netinet/in.h>
 #include <string.h>
+#include <string>
+#include <memory>
+#include <netdb.h>
 
 namespace zh {
 
@@ -16,11 +19,13 @@ class Address
 {
 private:
     struct sockaddr_in _addr;
+    std::unique_ptr<const struct hostent *> _host;
     unsigned int _len;
 public:
     Address();
     Address(const Address &address);
     Address(const unsigned short int family, const unsigned int addr, const unsigned short int port);
+    Address(const unsigned short int family, const std::string &addr, const unsigned short int port);
     unsigned int& size();
     struct sockaddr_in& operator*();
 };
diff --git a/lesson_03/header/buffer.hpp b/lesson_03/header/buffer.hpp
new file mode 100644
index 0000000..208bd7b
--- /dev/null
+++ b/lesson_03/header/buffer.hpp
@@ -0,0 +1,28 @@
+/*
+ * buffer.hpp
+ *
+ *  Created on: 7 сент. 2022 г.
+ *      Author: alexander
+ */
+
+#pragma once
+
+#include <memory>
+
+namespace zh
+{
+
+class Buffer
+{
+private:
+    const unsigned short int _size;
+    std::unique_ptr<std::byte[]> _buffer;
+public:
+    Buffer(const unsigned short int size);
+    const unsigned short int getSize() const;
+    const std::string getString() const;
+    void clear();
+    operator void*();
+};
+
+}
diff --git a/lesson_03/header/client.hpp b/lesson_03/header/client.hpp
new file mode 100644
index 0000000..08ec0a0
--- /dev/null
+++ b/lesson_03/header/client.hpp
@@ -0,0 +1,27 @@
+/*
+ * client.hpp
+ *
+ *  Created on: 7 сент. 2022 г.
+ *      Author: alexander
+ */
+
+#pragma once
+
+#include <stock.hpp>
+
+namespace zh
+{
+
+class ClientTCP: public Server // @suppress("Class has a virtual method and non-virtual destructor")
+{
+private:
+    bool _connect;
+    int _connfd;
+
+    void chat();
+public:
+    ClientTCP(const std::string &address, const unsigned short int port, const unsigned short int sizeBuffer = 1024);
+    void connect();
+};
+
+}
diff --git a/lesson_03/header/server.hpp b/lesson_03/header/server.hpp
index 9611474..5c7f012 100644
--- a/lesson_03/header/server.hpp
+++ b/lesson_03/header/server.hpp
@@ -9,37 +9,25 @@
 
 //#include <algorithm>
 
-#include <socket.hpp>
-#include <address.hpp>
-#include <memory>
+#include <stock.hpp>
 #include <vector>
 #include <string>
 
 namespace zh
 {
 
-class Server // @suppress("Class has a virtual method and non-virtual destructor")
-{
-protected:
-    std::unique_ptr<Socket> _socket;
-    std::unique_ptr<Address> _local, _client;
-    unsigned int _sizeClient;
-    const unsigned short int _port;
-    int _connfd;
-public:
-    Server(const unsigned short int port);
-    virtual void bind() = 0;
-    virtual void listen() = 0;
-};
+class ServerTCP;
 
-typedef void (*hook)(std::string buffer, Server &s);
+typedef void (*hook)(std::string buffer, ServerTCP &s);
 
 class ServerTCP: public Server // @suppress("Class has a virtual method and non-virtual destructor")
 {
 private:
     bool _bind;
-    const unsigned short int _sizeBuffer;
-    std::unique_ptr<std::byte[]> _buffer;
+    int _connfd;
+    bool _listenLoop;
+    unsigned int _sizeClient;
+    std::unique_ptr<Address> _client;
 
     class Hook
     {
@@ -48,18 +36,19 @@ private:
         hook _handler;
     public:
         Hook(std::string command, hook handler);
-        void execute(std::string buffer, Server &s);
+        void execute(std::string buffer, ServerTCP &s);
     };
 
     std::vector<Hook> _hooks;
 
     void chat();
-    void readData(const int sizeData);
 public:
     ServerTCP(const unsigned short int port, const unsigned short int sizeBuffer = 1024);
+    void registerHook(std::string command, hook handler);
     void bind();
     void listen();
-    void registerHook(std::string command, hook handler);
+    void disconnect();
+    void stop();
 };
 
 }
diff --git a/lesson_03/header/stock.hpp b/lesson_03/header/stock.hpp
new file mode 100644
index 0000000..2faeef4
--- /dev/null
+++ b/lesson_03/header/stock.hpp
@@ -0,0 +1,31 @@
+/*
+ * stock.hpp
+ *
+ *  Created on: 7 сент. 2022 г.
+ *      Author: alexander
+ */
+
+#pragma once
+
+#include <memory>
+#include <socket.hpp>
+#include <address.hpp>
+#include <buffer.hpp>
+
+namespace zh
+{
+
+class Server // @suppress("Class has a virtual method and non-virtual destructor")
+{
+protected:
+    std::unique_ptr<Socket> _socket;
+    std::unique_ptr<Address> _address;
+    std::unique_ptr<Buffer> _buffer;
+    const unsigned short int _port;
+public:
+    Server(const unsigned short int port, const unsigned short int sizeBuffer);
+    virtual void bind() {}
+    virtual void listen() {}
+};
+
+}
diff --git a/lesson_03/main.cpp b/lesson_03/main.cpp
index cf64aad..370ad31 100644
--- a/lesson_03/main.cpp
+++ b/lesson_03/main.cpp
@@ -9,10 +9,44 @@
 #include <iostream>
 
 #include <server.hpp>
+#include <client.hpp>
+
+void print(std::string buffer, zh::ServerTCP &s)
+{
+    std::cout << buffer << std::endl;
+}
+
+void stop(std::string buffer, zh::ServerTCP &s)
+{
+    s.stop();
+}
+
+void disconnect(std::string buffer, zh::ServerTCP &s)
+{
+    s.disconnect();
+}
+
+void server(const int port)
+{
+    zh::ServerTCP tcpServer(port);
+
+    tcpServer.registerHook("", print);
+    tcpServer.registerHook("disconnect", disconnect);
+    tcpServer.registerHook("stop", stop);
+
+    tcpServer.bind();
+    tcpServer.listen();
+}
+
+void client(const int port, const std::string &host)
+{
+    zh::ClientTCP tcpClient(host, port);
+    tcpClient.connect();
+}
 
 int main(int argc, char *argv[])
 {
-    ap::Hub hub({{ "port", 'p', ap::REQUIRED }});
+    ap::Hub hub({{ "port", 'p', ap::REQUIRED }, { "host", 'h', ap::REQUIRED }});
     hub.readArguments(argc, argv);
 
     auto optionPort = hub.getOption('p');
@@ -21,12 +55,18 @@ int main(int argc, char *argv[])
         std::cerr << "Порт не был установлен!" << std::endl;
         exit(EXIT_FAILURE);
     }
+    auto optionHost = hub.getOption('h');
+    if (!optionHost.isSet())
+    {
+        std::cerr << "Адрес не был установлен!" << std::endl;
+        exit(EXIT_FAILURE);
+    }
 
     int port = std::stoi(optionPort.getValues()[0]);
+    std::string host = optionHost.getValues()[0];
 
-    zh::ServerTCP tcpServer(port);
-    tcpServer.bind();
-    tcpServer.listen();
+    server(port);
+//    client(port, host);
 
     return 0;
 }
diff --git a/lesson_03/source/address.cpp b/lesson_03/source/address.cpp
index 132fa77..48cf492 100644
--- a/lesson_03/source/address.cpp
+++ b/lesson_03/source/address.cpp
@@ -31,6 +31,18 @@ Address::Address(const unsigned short int family, const unsigned int addr, const
     _addr.sin_port = htons(port);
 }
 
+Address::Address(const unsigned short int family, const std::string &addr, const unsigned short int port)
+{
+    memset(&_addr, 0, sizeof(_addr));
+    _len = sizeof(_addr);
+
+    _host = std::make_unique<const struct hostent *>(gethostbyname(addr.c_str()));
+
+    _addr.sin_family = family;
+    _addr.sin_addr.s_addr = *reinterpret_cast<const in_addr_t*>((*_host)->h_addr);
+    _addr.sin_port = htons(port);
+}
+
 unsigned int& Address::size()
 {
     return _len;
diff --git a/lesson_03/source/buffer.cpp b/lesson_03/source/buffer.cpp
new file mode 100644
index 0000000..05ebc35
--- /dev/null
+++ b/lesson_03/source/buffer.cpp
@@ -0,0 +1,40 @@
+/*
+ * buffer.cpp
+ *
+ *  Created on: 7 сент. 2022 г.
+ *      Author: alexander
+ */
+
+#include <buffer.hpp>
+#include <string.h>
+#include <string>
+
+namespace zh
+{
+
+Buffer::Buffer(const unsigned short int size) : _size(size)
+{
+    _buffer = std::make_unique<std::byte[]>(_size);
+}
+
+const unsigned short int Buffer::getSize() const
+{
+    return _size;
+}
+
+const std::string Buffer::getString() const
+{
+    return reinterpret_cast<char*>(_buffer.get());
+}
+
+void Buffer::clear()
+{
+    bzero(_buffer.get(), _size);
+}
+
+Buffer::operator void*()
+{
+    return _buffer.get();
+}
+
+}
diff --git a/lesson_03/source/client.cpp b/lesson_03/source/client.cpp
new file mode 100644
index 0000000..4c7073e
--- /dev/null
+++ b/lesson_03/source/client.cpp
@@ -0,0 +1,50 @@
+/*
+ * client.cpp
+ *
+ *  Created on: 7 сент. 2022 г.
+ *      Author: alexander
+ */
+
+#include <client.hpp>
+#include <iostream>
+#include <arpa/inet.h>
+#include <unistd.h>
+
+namespace zh
+{
+
+ClientTCP::ClientTCP(const std::string &address, const unsigned short int port, const unsigned short int sizeBuffer) : Server(port, sizeBuffer), _connect(false), _connfd(-1)
+{
+    _socket = std::make_unique<Socket>(AF_INET, SOCK_STREAM, IPPROTO_IP);
+    _address = std::make_unique<Address>(AF_INET, address, port);
+}
+
+void ClientTCP::connect()
+{
+    if (_connect)
+    {
+        std::cerr << "Клиентский сокет уже подключён к серверному сокету!" << std::endl;
+        return;
+    }
+
+    if (::connect((*_socket), reinterpret_cast<const sockaddr*>(&(*_address)), (*_address).size()) != 0)
+        std::cerr << "Не удаётся подключить клиентский сокет к серверному сокету!" << std::endl;
+    else
+        _connect = true;
+
+    chat();
+}
+
+void ClientTCP::chat()
+{
+    while (_connect)
+    {
+        Buffer *bf = &(*_buffer);
+        bf->clear();
+        std::cin.getline(reinterpret_cast<char*>(bf->operator void *()), bf->getSize());
+        write(_connfd, *bf, bf->getSize());
+    }
+    close(*_socket);
+}
+
+}
diff --git a/lesson_03/source/server.cpp b/lesson_03/source/server.cpp
index 40fd8f8..9fd9ac3 100644
--- a/lesson_03/source/server.cpp
+++ b/lesson_03/source/server.cpp
@@ -9,20 +9,16 @@
 #include <iostream>
 #include <unistd.h>
 #include <string.h>
+#include <algorithm>
 
 namespace zh
 {
 
-Server::Server(const unsigned short int port) : _port(port), _connfd(-1)
-{
-    _sizeClient = sizeof(*_client);
-}
-
 ServerTCP::Hook::Hook(std::string command, hook handler) : _command(command), _handler(handler)
 {
 }
 
-void ServerTCP::Hook::execute(std::string buffer, Server &s)
+void ServerTCP::Hook::execute(std::string buffer, ServerTCP &s)
 {
     if (_command == "")
     {
@@ -43,11 +39,11 @@ void ServerTCP::registerHook(std::string command, hook handler)
     _hooks.push_back({ command, handler });
 }
 
-ServerTCP::ServerTCP(const unsigned short int port, const unsigned short int sizeBuffer) : Server(port), _bind(false), _sizeBuffer(sizeBuffer)
+ServerTCP::ServerTCP(const unsigned short int port, const unsigned short int sizeBuffer) : Server(port, sizeBuffer), _bind(false), _connfd(-1), _listenLoop(true)
 {
     _socket = std::make_unique<Socket>(AF_INET, SOCK_STREAM, IPPROTO_IP);
-    _local = std::make_unique<Address>(AF_INET, INADDR_ANY, port);
-    _buffer = std::make_unique<std::byte[]>(sizeBuffer);
+    _address = std::make_unique<Address>(AF_INET, INADDR_ANY, port);
+    _sizeClient = sizeof(_client);
 }
 
 void ServerTCP::bind()
@@ -58,7 +54,7 @@ void ServerTCP::bind()
         return;
     }
 
-    if (::bind((*_socket), reinterpret_cast<const sockaddr*>(&(*_local)), (*_local).size()) != 0)
+    if (::bind((*_socket), reinterpret_cast<const sockaddr*>(&(*_address)), (*_address).size()) != 0)
         std::cerr << "Не удаётся связать адрес с дескриптором слушающего сокета!" << std::endl;
     else
         _bind = true;
@@ -79,27 +75,41 @@ void ServerTCP::listen()
             std::cerr << "Не удаётся верифицировать и принять пакеты от клиента!" << std::endl;
             return;
         }
+        else
+            _listenLoop = true;
 
         // Обработка соединения с клиентом
         chat();
     }
 }
 
-void ServerTCP::readData(const int sizeData)
-{
-
-}
-
 void ServerTCP::chat()
 {
-    while (true)
+    while (_listenLoop)
     {
-        bzero(_buffer.get(), _sizeBuffer);
-        read(_connfd, _buffer.get(), 4);
-        std::cout << *reinterpret_cast<int*>(_buffer.get()) << std::endl;
-        close(_connfd);
-        break;
+        Buffer *bf = &(*_buffer);
+        bf->clear();
+        int size = read(_connfd, *bf, bf->getSize());
+        if (size > 0)
+            std::for_each(_hooks.begin(), _hooks.end(), [&](Hook &hook)
+            {
+                hook.execute(bf->getString(), *this);
+            });
+        else if (size < 0)
+            break;
     }
+    close(_connfd);
+}
+
+void ServerTCP::stop()
+{
+    _listenLoop = false;
+    _bind = 0;
+}
+
+void ServerTCP::disconnect()
+{
+    _listenLoop = false;
 }
 
 }
diff --git a/lesson_03/source/stock.cpp b/lesson_03/source/stock.cpp
new file mode 100644
index 0000000..3e8ca0a
--- /dev/null
+++ b/lesson_03/source/stock.cpp
@@ -0,0 +1,18 @@
+/*
+ * stock.cpp
+ *
+ *  Created on: 7 сент. 2022 г.
+ *      Author: alexander
+ */
+
+#include <stock.hpp>
+
+namespace zh
+{
+
+Server::Server(const unsigned short int port, const unsigned short int sizeBuffer) : _port(port)
+{
+    _buffer = std::make_unique<Buffer>(sizeBuffer);
+}
+
+}