The Internet of Things (IoT) comprises a large number of heterogeneous devices. It is forecasted that up to 50 billion devices will be connected to the Internet by 2020. All of them have to be configured. Due to the heterogeneity of devices and the enormous increasing number of devices, manual configuration becomes more and more complex and inefficient. Zero configuration is put forward to solve this problem, which makes device configured automatically without additional manual involvement. Besides that, there are many security threats we want to avoid in the future. These security problems include unauthenticated nodes accessing to IoT data, denial of service, lack of confidentiality, malicious attack from hackers and so on. This paper studies the characteristics of IoT firstly and then highlights the implementation of zero configuration and security to IoT. This paper describes the underlying features of zero configuration and primary requirements of security, as well as finds some related mature technologies, based on that proposes a concise solution – combining the Bonjour and many security approaches for implementation of a secure zero IoT system. In addition, this solution is implemented in a small environment scenario of IoT, a smart home. All the programs are in Java language. Evaluation and conclusion are done in final phase.

Táto práca sa zameriava na návrh a implementáciu riešenia API na zisťovanie ZeroConf/mDNS služieb v lokálnej sieti. Cieľom tohto API je spracovať zisťovanie služieb a poskytnúť koncové body API na komunikáciu s webovým uživateľským rozhraním. Okrem backendového riešenia sa práca zameriava aj na vytvorenie WordPress pluginu pomocou React.js na zobrazovanie údajov poskytnutých backendovým API koncovému používateľovi. Tento plugin zároveň umožňuje správcovi WordPress serveru umiestniť komponent používateľského rozhrania Service discovery na stránku s obsahom podľa výberu správcu.

This thesis describes DNS protocol and messages it uses to obtain desired information. The protocol is described from its creation and occasions that caused the creation of the protocol. Later on are discussed multicast capabilities of name resolution this section is focused on mDNS and LLMNR. In the second part is detailed description of the structure of the messages and their useage. In the last part is described the design of the application, which was based on the specifications listed in RFCs. One chapter is devoted to a detailed description of the application and its individual parts. A large part is devoted to the testing. There are also described problems that occurred during application development and their solutions.