====== ip.pdf ======
  * [[:c:4:ip:lab:lab1]]
  * [[:c:4:ip:lab:lab3]]
  * [[:c:4:ip:lab:lab2]]
  * [[:c:4:ip:lab:spring]]
  * [[:c:4:ip:lab:lab5]]
  * [[:c:4:ip:lab:lab4]]
  * [[:c:4:ip:lab:lab7]]
  * [[:c:4:ip:lab:lab8]]
  * [[:c:4:ip:gitlab-cicd]]
  * [[:c:4:ip:lab:lab9_2]]