For a long time, veterinary medicine with long-acting antimicrobial agents（antibiotics） in the effective prevention and treatment of various infectious animal diseases, to improve the efficiency of farmers’ production of livestock and poultry production and operation, to ensure the quality of various types of urban public product safety and health, as well as the safety of standardized production activities, have always played and played an important role. However, the abuse of antibiotics can easily lead to a variety of bacteria resistance, while bringing strong toxic side effects, endangering public health safety. 2021 national action to reduce the amount of veterinary antimicrobial drugs, the implementation of the “same health” concept in each province, attach great importance to the reduction of action. The expert team of Jiangxi Province cattle and sheep industry system disease prevention and control post to more than 30 cattle and sheep breeding counties（districts） in Jiangxi Province, for the breeding enterprises and farmers design and issue relevant questionnaires, to scientific guidance to promote livestock and poultry farm households to regulate the use, reduce the use of antibiotics, and put forward measures and recommendations to promote the development of cattle and sheep breeding, for your readers, farmers for reference.

Computer systems and applications on the internet provide services to outsiders and, at the same time, the vulnerabilities may be exploited by attackers and leak some sensitive private information. To collect and monitor the service information provided by the network environment such as IoT (Internet of Things), vehicular networks, cloud computing, and cloud storage, it is particularly important that a system can provide faster service discovery for discovering and identifying specific network services. The current service discovery systems mainly use port scanning technology, including Nmap, Zmap, andMasscan. However, these technologies hard code the service features and only support common services so that cannot cope with real-time updates and changing network services. To solve the above problems, this paper proposed a customizable distributed network service discovery system based on stateless scanning technology of Masscan and proposed a customizable interactive pattern set syntax. The system used random destination address technologies to scan for Ipv4 address allocation and used a distributed deployment scheme. Experimental results show that the system has high scanning speed and has high adaptability to new services and special services.

The rapid development of Internet of Things (IoT) technology has made previously unavailable data available, and applications can take advantage of device data for people to visualize, explore, and build complex analyses. As the size of the network and the number of network users continue to increase, network requests tend to aggregate on a small number of network resources, which results in uneven load on network requests. Real-time, highly reliable network file distribution technology is of great importance in the Internet of Things. This paper studies real-time and highly reliable file distribution technology for large-scale networks. In response to this topic, this paper studies the current file distribution technology, proposes a file distribution model, and proposes a corresponding load balancing method based on the file distribution model. Experiments show that the system has achieved real-time and high reliability of network transmission.

With the rapid development of the Internet, the scale of Internet users has been expanding. At the same time, various mobile phone applications have emerged in an endless stream. While providing users with a variety of services, it also leads to the difficulty of user identification. All those things bring new challenges to traffic identification. Based on the importance of Internet traffic identification for Internet management and security, this paper describes the classification methods and problems faced by Internet traffic identification. Moreover, current work about user-related and application-related traffic identification methods is summarized and analyzed. At the end of this article, we will discuss the future research prospects of traffic identification and summarize the content of the article.

By introducing the idea of data compression storage and not distinguishing between intermediate node and termination node, we propose a new matching algorithm for the IP with mask. The worst-case space complexity of the algorithm is fixed. The comparison of the experiments’ result shows that the new algorithm has superior performance. In the case of a large set of patterns, its matching performance is better, which is very suitable for application in IDS systems with large traffic and very strong real-time requirements.

During the last decade, rapid development of mobile devices and applications has produced a large number of mobile data which hide numerous cyber-attacks. To monitor the mobile data and detect the attacks, NIDS/NIPS plays important role for ISP and enterprise, but now it still faces two challenges, high performance for super large patterns and detection of the latest attacks. High performance is dominated by Deep Packet Inspection (DPI) mechanism, which is the core of security devices. A new TTL attack is just put forward to escape detecting, such that the adversary inserts packet with short TTL to escape from NIDS/NIPS. To address the above-mentioned problems, in this paper, we design a security system to handle the two aspects. For efficient DPI, a new two-step partition of pattern set is demonstrated and discussed, which includes first set-partition and second set-partition. For resisting TTL attacks, we set reasonable TTL threshold and patch TCP protocol stack to detect the attack. Compared with recent produced algorithm, our experiments show better performance and the throughput increased 27% when the number of patterns is 106. Moreover, the success rate of detection is 100%, and while attack intensity increased, the throughput decreased.

纪念抗日战争胜利70周年大阅兵的激情尚未褪去，伟大的祖国又点燃了她的第66支生日蜡烛。铭记历史，守望和平，这个国庆节，有了非凡的意义。66年的风雨历程，我们远离落后；66年的风雨历程，华夏春光永驻。历史见证了我们走向欣欣向荣，历史见证着我们走向伟大复兴。

畜牧业是我国“十一五”规划中重点发展的行业之一，而经济动物养殖业是现代畜牧业的重要组成部分。经济动物养殖、生产是近年来我国蓬勃发展的新兴产业，在我国养殖业中占据的地位日益增加。经济动物养殖有见效快、投资少、附加值高等特点，符合现代农业发展战略。