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diff --git a/src/bin/netconf/stdout_control_socket.h b/src/bin/netconf/stdout_control_socket.h
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+++ b/src/bin/netconf/stdout_control_socket.h
@@ -0,0 +1,90 @@
+// Copyright (C) 2018-2021 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+/// @file stdout_control_socket.h
+/// Contains declarations for stdout control socket communication.
+
+#ifndef STDOUT_CONTROL_SOCKET_H
+#define STDOUT_CONTROL_SOCKET_H
+
+#include <netconf/control_socket.h>
+#include <iostream>
+
+namespace isc {
+namespace netconf {
+
+/// @brief Class for control socket communication over stdout.
+///
+/// This class is the derived class for control socket communication
+/// over stdout.
+/// This class implements config-test (always OK) and config-set.
+class StdoutControlSocket : public ControlSocketBase {
+public:
+
+    /// @brief Constructor.
+    ///
+    /// Use std::cout.
+    ///
+    /// @param ctrl_sock The control socket configuration.
+    StdoutControlSocket(CfgControlSocketPtr ctrl_sock);
+
+    /// @brief Destructor (does nothing).
+    virtual ~StdoutControlSocket() = default;
+
+    /// @brief Get configuration.
+    ///
+    /// Call config-get over the control socket.
+    ///
+    /// @param service The target service (ignored).
+    /// @return The JSON element answer of config-get.
+    /// @throw NotImplemented
+    virtual data::ConstElementPtr configGet(const std::string& service);
+
+    /// @brief Test configuration.
+    ///
+    /// Call config-test over the control socket.
+    ///
+    /// @param config The configuration to test (ignored).
+    /// @param service The target service (ignored).
+    /// @return The JSON element answer of config-test (fixed answer).
+    virtual data::ConstElementPtr configTest(data::ConstElementPtr config,
+                                             const std::string& service);
+
+    /// @brief Set configuration.
+    ///
+    /// Call config-set over the control socket.
+    ///
+    /// @param config The configuration to set.
+    /// @param service The target service.
+    /// @return The JSON element answer of config-set (fixed answer).
+    virtual data::ConstElementPtr configSet(data::ConstElementPtr config,
+                                            const std::string& service);
+
+protected:
+    /// @brief Alternative constructor for tests.
+    ///
+    /// @param ctrl_sock The control socket configuration.
+    /// @param output The output stream.
+    StdoutControlSocket(CfgControlSocketPtr ctrl_sock, std::ostream& output);
+
+    /// @brief The output stream (std::cout outside tests).
+    std::ostream& output_;
+};
+
+/// @brief Type definition for the pointer to the @c StdoutControlSocket.
+typedef boost::shared_ptr<StdoutControlSocket> StdoutControlSocketPtr;
+
+/// @brief Factory template specialization for stdout control sockets.
+///
+/// @param ctrl_sock The control socket configuration.
+/// @return A pointer to a stdout control socket communication object.
+template <> ControlSocketBasePtr
+createControlSocket<CfgControlSocket::Type::STDOUT>(CfgControlSocketPtr ctrl_sock);
+
+} // namespace netconf
+} // namespace isc
+
+#endif // STDOUT_CONTROL_SOCKET_H