Modern orchestration systems are being studied. Using different virtualization methods is it a good way to reduce construction time, equipment costs and support system operations during infrastructure construct. The article provides a detailed analysis of existing virtualization tools. A comparative analysis of modern solutions shows that the Kubernetes tool is one of the best tools for orchestration. The features of sharing orchestration systems together with different Cloud providers are presented in the article, comparisons of the cloud providers themselves are presented too.

Ab s t r a c t. The subject matter of the article is opportunity use of a method of Pascal for finding of remainders of division of large numbers when using CRC. The goal is to analyze a possibility of use of a method of Pascal for definition of remainders of division in the CRC systems. Tasks: to analyze a possibility of use of CRC for noise-immune coding in different channels, to show a possibility of application of a method of Pascal for an image of noise-immune coding with use of checksums. The used methods are analytical method, methods of modal arithmetic's. The received such results. The technique of calculation of Checksum of the message which are used for the control of integrity and restoration distorted the message is developed. Conclusions. Use of a method of Pascal for definition of remainders of division allows accelerating considerably process of search of various options the message, which will be restored. Realization of the offered method allows creating parallel structures, which give the chance to solve a problem of recovery of the message on the scale of real time.K e ywor d s : noise-immune coding; a method of Pascal; CRC; integrity; a remainder of division; divisions behind a step.

The paper considers the possibility of using a mosaic composed of many miniature images to hide the fact of text information transmission. The results of the study of optimal mosaic construction when using steganographic methods of hiding information are presented. The use of the proposed algorithms implies the use of сryptographically secure pseudorandom number generator with dynamically changing parameters for concealing information. The generators are used to determine the location of information bits in a certain mini-images, as well as in a specific pixels and color channels. Using the proposed algorithm, no more than twenty-five percent of the color channels are changed, provided that one bit per color is used. This paper is supplemented with illustrations and examples of how the algorithm works. K e ywor d s : mosaic; steganography; pseudo-random sequence generators; pixel; color channel; information bit.