Access Control List (ACL) packet filtering is a basic network security technology and is widely used in various network environments. In order to improve students' understanding and application ability of ACL technology, we improve teaching methods, carefully prepare teaching content and design the self-learning assignments according to the students' learning ability. The case is based on a small and medium-sized company network and is highly practical. Each step in the assignment focuses on a single knowledge point, covering the basic content of related technologies. The design of this assignment reflects the teaching philosophy of the higher vocational education requirements, namely in the teaching process, besides paying attention to the understanding of basic knowledge, the students' hands-on ability should be emphasized.
At present, part of the experimental environment of computer science courses and the software development environment of the school are built based on virtual machines. As the number of students rapidly increases, the demand for virtual machines goes up correspondingly. Virtual machines consume a lot of resources, and the shortage of resources becomes the bottleneck of laboratory construction. According to the current situation of school resources, this paper proposes to build a docker-based laboratory environment for computer course teaching as well as software development and test, so as to provide teachers and students with various lightweights and stable Linux system services.
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