This is alx System enginneering development project works.

0x00-shell_basics.
0x01-shell_permissions.
0x02-shell_redirections.
0x03-shell_variables_expansions.
0x04-loops_conditions_and_parsing.
0x05-processes_and_signals
0x06-regular_expressions
0x07-networking_basics 0x08-networking_basics_2
0x09-web_infrastructure_design
attack_is_the_best_defense
0x0A-configuration_management
0x0B-ssh
0x0C-web_server
0x0D-web_stack_debugging_0
0x0F-load_balancer
0x0E-web_stack_debugging_1
0x10-https_ssl
0x11-what_happens_when_your_type_google_com_in_your_browser_and_press_enter
0x13-firewall
0x12-web_stack_debugging_2
0x14-mysql
0x15-api
0x16-api_advanced
0x17-web_stack_debugging_3
0x18-webstack_monitoring
0x19-postmortem
0x1A-application_server
0x1B-web_stack_debugging_4