#Linux

2 resources

AdvancedInteractiveEnglish & French▲ 23 votes

500+ security challenges with strong French-language coverage: web, crypto, forensics, networking. A francophone security-training reference.

Security Web Security LinuxFree with limits: Core challenges free; premium solutions optional

BeginnerCourseEnglish▲ 14 votes

A gentle, well-sequenced free course on Linux: the shell, processes, permissions, networking and packages.