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## [[Chapter_Introduction]]

## [[Using_the_BSDA_Study_DVD]]

- [[Introduction]]
- [[Installing_FreeBSD_with_Qemu_and_Aqemu]]
- [[Preparing_the_FreeBSD_system_for_Qemu]]
- [[Using_Qemu_from_the_command_line]]
- [[Using_Aqemu_for_Virtualization]]
- [[Networking_QEMU_Virtual_BSD_Systems]]

## [[Chapter_Installing_and_Upgrading_the_OS_and_Software]]

- [[Recognize_the_installation_program_used_by_each_operating_system]]
- [[Recognize_which_commands_are_available_for_upgrading_the_operating_system]]
- [[Understand_the_difference_between_a_pre-compiled_binary_and_compiling_from_source]]
- [[Understand_when_it_is_preferable_to_install_a_pre-compiled_binary_and_how_to_do_so]]
- [[Recognize_the_available_methods_for_compiling_a_customized_binary]]
- [[Determine_what_software_is_installed_on_a_system]]
- [[Determine_which_software_requires_upgrading]]
- [[Upgrade_installed_software]]
- [[Determine_which_software_have_outstanding_security_advisories]]
- [[Follow_the_instructions_in_a_security_advisory_to_apply_a_security_patch]]

## [[Chapter_Securing_the_Operating_System]]

- [[Determine_the_system__39__s_security_level]]
- [[Recognize_basic_recommended_access_methods]]
- [[Configure_an_SSH_server_according_to_a_set_of_requirements]]
- [[Configure_an_SSH_server_to_use_a_key_pair_for_authentication]]
- [[Preserve_existing_SSH_host_keys_during_a_system_upgrade]]
- [[Recognize_alternate_authentication_mechanisms]]
- [[Recognize_alternate_authorization_schemes]]
- [[Recognize_BSD_firewalls_and_rulesets]]
- [[Recognize_the_BSD_utilities_that_shape_traffic_or_control_bandwidth]]
- [[Recognize_BSD_mechanisms_for_encrypting_devices]]
- [[Recognize_methods_for_verifying_the_validity_of_binaries]]
- [[Recognize_the_BSD_methods_for_restraining_a_service]]
- [[Modify_the_system_banner]]

## [[Chapter_Files__44___Filesystems_and_Disks]]

- [[Mount_or_unmount_local_filesystems]]
- [[Configure_data_to_be_available_through_NFS]]
- [[Determine_which_filesystems_are_currently_mounted_and_which_will_be_mounted_at_system_boot]]
- [[Determine_disk_capacity_and_which_files_are_consuming_the_most_disk_space]]
- [[Create_and_view_symbolic_or_hard_links]]
- [[View_and_modify_ACLs]]
- [[View_file_permissions_and_modify_them_using_either_symbolic_or_octal_mode]]
- [[Modify_a_file__39__s_owner_or_group]]
- [[Backup_and_restore_a_specified_set_of_files_and_directories_to_local_disk_or_tape]]
- [[Backup_and_restore_a_file_system]]
- [[Determine_the_directory_structure_of_a_system]]
- [[Manually_run_the_file_system_checker_and_repair_tool]]
- [[View_and_modify_file_flags]]
- [[Monitor_the_virtual_memory_system]]

## [[Chapter_Users_and_Accounts_Management]]

- [[Protect_authentication_data]]
- [[Create__44___modify_and_remove_user_accounts]]
- [[Create_a_system_account]]
- [[Control_which_files_are_copied_to_a_new_user__39__s_home_directory_during_account_creation]]
- [[Change_a_password]]
- [[Change_the_encryption_algorithm_used_to_encrypt_the_password_database]]
- [[Change_a_user__39__s_default_shell]]
- [[Lock_a_user_account_or_reset_a_locked_user_account]]
- [[Determine_identity_and_group_membership]]
- [[Determine_who_is_currently_on_the_system_or_the_last_time_a_user_was_on_the_system]]
- [[Enable_accounting_and_view_system_usage_statistics]]

## [[Chapter_Basic_System_Administration]]

- [[Determine_which_process_are_consuming_the_most_CPU]]
- [[View_and_send_signals_to_active_processes]]
- [[Use_an_rc__40__8__41___script_to_determine_if_a_service_is_running_and_start__44___restart_or_stop_it_as_required]]
- [[Configure_a_service_to_start_at_boot_time]]
- [[View_and_configure_system_hardware]]
- [[View__44___load__44___or_unload_a_kernel_module]]
- [[Modify_a_kernel_parameter_on_the_fly]]
- [[View_the_status_of_a_software_RAID_mirror_or_stripe]]
- [[Configure_system_logging]]
- [[Configure_log_rotations]]
- [[Review_log_files_to_troubleshoot_and_monitor_system_behavior]]
- [[Determine_which_MTA_is_being_used_on_the_system]]
- [[Create_or_modify_email_aliases_for_Sendmail_or_Postfix]]
- [[View_the_Sendmail_or_Postfix_mail_queue]]
- [[Read_mail_on_the_local_system]]
- [[Understand_basic_printer_troubleshooting]]
- [[Halt__44___reboot__44___or_bring_the_system_to_single-user_mode]]
- [[Recognize_the_difference_between_hard_and_soft_limits_and_modify_existing_resource_limits]]
- [[Recognize_common__44___possibly_third-party__44___server_configuration_files]]
- [[Configure_the_scripts_that_run_periodically_to_perform_various_system_maintenance_tasks]]
- [[Determine_the_last_system_boot_time_and_the_workload_on_the_system]]
- [[Monitor_disk_input--output]]
- [[Deal_with_busy_devices]]
- [[Determine_information_regarding_the_operating_system]]
- [[Understand_the_advantages_of_using_a_BSD_license]]

## [[Chapter_Network_Administration]]

- [[Determine_the_current_TCP--IP_settings_on_a_system]]
- [[Set_a_system__39__s_TCP--IP_settings]]
- [[Determine_which_TCP_or_UDP_ports_are_open_on_a_system]]
- [[Verify_the_availability_of_a_TCP--IP_service]]
- [[Query_a_DNS_server]]
- [[Determine_who_is_responsible_for_a_DNS_zone]]
- [[Change_the_order_of_name_resolution]]
- [[Convert_a_subnet_mask_between_dotted_decimal__44___hexadecimal_or_CIDR_notation]]
- [[Gather_information_using_an_IP_address_and_subnet_mask]]
- [[Understand_IPv6_address_theory]]
- [[Demonstrate_basic_tcpdump__40__1__41___skills]]
- [[Manipulate_ARP_and_neighbor_discovery_caches]]
- [[Configure_a_system_to_use_NTP]]
- [[View_and_renew_a_DHCP_lease]]
- [[Recognize_when_and_how_to_set_or_remove_an_interface_alias]]

## [[Chapter_Basic_Unix_Skills]]

- [[Demonstrate_proficiency_in_using_redirection__44___pipes_and_tees]]
- [[Recognize__44___view_and_modify_environmental_variables]]
- [[Be_familiar_with_the_vi__40__1__41___editor]]
- [[Determine_if_a_file_is_a_binary__44___text__44___or_data_file]]
- [[Locate_files_and_binaries_on_a_system]]
- [[Overcome_command_line_length_limitations]]
- [[Find_a_file_with_a_given_set_of_attributes]]
- [[Create_a_simple_Bourne_shell_script]]
- [[Find_appropriate_documentation]]
- [[Recognize_the_different_sections_of_the_manual]]
- [[Verify_a_file__39__s_message_digest_fingerprint___40__checksum__41__]]
- [[Demonstrate_familiarity_with_the_default_shell]]
- [[Use_job_control]]
- [[Demonstrate_proficiency_with_regular_expressions]]
- [[Understand_various___34__domain__34___contexts]]
- [[Configure_an_action_to_be_scheduled_by_cron__40__8__41__]]
