17 KiB
17 KiB
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Eòlas
Hi, I'm Thomas. This is the frontend of Eòlas, my personal knowledge base. It is a Zettelkasten work in progress comprising notes from my self-directed study of software engineering and computer science.
Build ID: 14b2609c-4c92-4980-96d4-543ba5a9d0be
Published: Thu 27 Mar 2025 17:52:51
Recent edits
- d212acdb_from_free-software_to_open_source
- c8820974_Tor_prioritising_uptake
- What_can_the_ISP_see
- Code_Craft_The_Practice_Of_Writing_Excellent_Code
- Constructing paths in Python
- File_operations_in_Python
- Using a context manager in Python
- USB-C
- USB protocols and connectors
- SSH
- lsof
- a0ab0bfb_network_layer_clarification
- b01fd836_Transport_Layer_clarification
- Transport_Layer_of_Internet_Protocol
- HTTPS
- How_tunneling_works_with_VPNs
- Network_tunnels
- Capturing_program_error_in_Bash
- Check_if_value_null_in_Bash
- Associative_arrays_maps_in_Bash
All notes (546)
- 0716531c_rewilding_the_internet
- 241fe1a3_the_Web_versus_modem_BBSs
- 385af4b4_Baran_distributed_networks
- 3f1b9fe5_motivation_Berners_Lee
- 4a3dc316_key_figures_ARPANET
- 4da22434_from_ARPANET_to_Internet
- 4dec6fe0_shadow_text
- 653c0b1d_host_protocols_of_ARPANET
- 738d0481_sound_recording_as_wave_phenomena
- 747589ad_effects_of_privacy_violation
- 82f9c228_dissolution_of_ARPANET
- 861cc26e_ARPA_origins
- API_Gateway
- AWS_CLI
- AWS_CloudWatch
- AWS_SAM_and_Docker
- AWS_SNS
- AWS_SQS
- AWS_SQS_SDK
- AWS_architecture_hierarchy
- Accessing_metadata_about_SQL_database
- Accessing_secrets_from_a_Lambda
- Add_Subtract_Fractions
- Adding_documents_to_a_Mongo_collection
- Additive_identity
- Additive_inverse_property
- Aggregate_functions_in_SQL
- Algebra_key_terms
- Algorithmic_complexity
- Analogue_and_digital
- Any
- Apollo_Client
- Apollo_Server
- Appending_to_files_in_Python
- Application_Layer_of_Internet_Protocol
- Application_state_management_with_React_hooks
- Architecture_of_the_World_Wide_Web
- Arithmetic_Logic_Unit
- Arrays
- Assembly
- Associative_Property_of_Addition_and_Multiplication
- Associative_arrays_maps_in_Bash
- Atomic_and_molecular_propositions
- Audio_file_formats
- Awk
- Axioms_of_set_theory
- Bash_colour_output
- Bash_file_exists
- Bash_store_status_of_command_execution
- Basic_model_of_the_operating_system
- Basic_properties_of_sets
- Basics_of_web_components
- Batch_processing
- Bauman_quote
- Bell_System
- Biconditional_Elimination
- Biconditional_Introduction
- Binary_addition
- Binary_arithmetic
- Binary_colour_encoding
- Binary_encoding
- Binary_encoding_of_sound
- Binary_encoding_of_text
- Binary_number_system
- Binary_units_of_measurement
- Bitwise_operators
- Bluetooth
- Bolt_Beranek_and_Newman
- Boolean_algebra
- Boolean_function_synthesis
- Boolean_functions
- Boot_process
- Breadboards
- Bus
- CPU_architecture
- Call_stack
- Capturing_program_error_in_Bash
- Capturing_user_input_in_Bash
- Case_statements_in_Bash
- Cells_and_batteries
- Certificate_authorities
- Check_if_value_null_in_Bash
- Cherry_picking
- Child_to_parent_data_flow_in_React
- Chipset_and_controllers
- Class_inheritance_in_Python
- Classes
- Classes_in_Python
- Clock_signals
- Code_Craft_The_Practice_Of_Writing_Excellent_Code
- Command_pattern
- Commutative_Property_of_Addition_and_Multiplication
- Comparing_React_classes_to_hooks
- Compile_Python_app_to_single_executable
- Compile_from_source
- Components_props_classes
- Components_props_hooks_in_React
- Concise_subfield_mapping_JS
- Conditional_Elimination
- Conditional_Introduction
- Conditional_statements_in_Python
- Conditionals_in_Bash
- Conjunction_Elimination
- Conjunction_Introduction
- Connect_to_Mongo_database
- Connecting_a_frontend_to_a_Docker_backend
- Constructing paths in Python
- Containerization
- Controlled_components_in_React
- Corresponding_material_and_biconditional
- Coulombs_Laws
- Create_Mongo_database
- Create_an_SQL_table
- Create_timed_systemd_job
- Creating_a_Docker_image
- Creating_a_Linux_partition_table
- Creating_a_Mongo_schema_and_model
- Creating_a_RESTful_API_GET
- Creating_a_RESTful_API_Integrating_the_Database
- Creating_a_RESTful_API_Introduction
- Creating_a_RESTful_API_POST
- Creating_a_RESTful_API_PUT
- Creating_memory_with_NAND
- Cron
- Current
- Custom_React_hook_examples
- Custom_types_in_TypeScript
- DRAM_and_SRAM_memory
- Daemons
- Data_types_in_Bash
- Data_types_in_MySQL
- Database_indices
- Database_options_on_AWS
- Dates_in_Python
- DeMorgan's_Laws
- Defining_a_computer
- Delay_line_memory
- Delete_a_branch
- Delete_records_in_an_SQL_table
- Deleting_Mongo_documents
- Dependency_injection
- Devices
- Dictionaries_in_Python
- Difference_between_remote_origin_and_head
- Disable_non-root_ssh_access
- Disjunction_Elimination
- Disjunction_Introduction
- Disk_info
- Disk_size_utilities
- Distributivity
- Dividing_fractions
- Docker_CLI
- Docker_Compose
- Docker_architecture
- Docker_compose_and_Dockerfile_difference
- Docker_containers
- Docker_general_overview
- Docker_images
- Docker_storage
- Dynamic_and_static_websites
- DynamoDB_CLI_commands
- DynamoDB_SDK_commands
- DynamoDB_data_structure
- Effective_logging_in_Git
- Elastic_Compute_Cloud
- Electromagnetism
- Electrons
- Enums
- Environmental_and_shell_variables
- Equivalent_equations
- Equivalent_fractions
- Error_handling_in_Python
- Event_loop
- Example_scenario_internet_data_transfer
- Expansions_and_substitutions
- Exponents
- Expressing_whole_numbers_as_fractions
- Factors_and_divisors
- Factory_pattern
- Fetch_decode_execute
- Fetch_from_Secrets_Manager
- File_descriptors
- File_operations_in_Python
- File_permissions_and_execution_in_Bash
- File_system_error_handling_in_Python
- Filesystems
- Find_Bash_command
- Firewalls
- Flip_flops
- Foreign_keys_in_SQL
- Formal_conventions
- Formal_proofs_in_propositional_logic
- Format_specifiers_in_C
- Formatting_output_text_in_Bash
- Forms_in_React
- Four_bit_adder
- Frequency_counters
- Full_Node_API_example
- Function_overloads
- Functions
- Functions_in_Bash
- Functions_in_Python
- Fundamental_Theorem_of_Arithmetic
- Further_examples_of_TS_generics
- GPU_versus_CPU
- Generics_in_TypeScript
- Git_bisect
- Git_rebasing
- Global_object_in_NodeJS
- Grep
- Ground
- Guide_to_YAML
- HTTPS
- HTTP_request_types
- Half_adder_and_full_adder
- Handle_multiple_endpoints_single_lambda
- Handling_negative_fractions
- Hardware_Description_Language
- Hardware_abstraction_and_modularity
- Hardware_simulation
- Headless_Raspi_network_setup
- Heap_memory
- Hexadecimal_number_system
- How_tunneling_works_with_VPNs
- ICMP_Protocol
- IP_addresses
- Identify_merged_branches
- Importing_MongoDB_data
- Increasing_fractions_to_their_highest_terms
- Insert_data_into_SQL_table
- Instruction_set_architectures
- Integers
- Integrated_circuits
- Interactive_staging
- Internet_Layer_of_Internet_Protocol
- Internet_fundamentals
- Intersection_types_in_TypeScript
- Intro_to_the_Unix_shell
- Inversion_of_operators
- Invoking_the_shell_in_Python
- Iterating_in_React
- Iterating_through_complex_data_structures_in_Python
- JavaScript_module_types
- Joins_in_SQL
- Journey_of_GraphQL_query
- Key_characteristics_of_GraphQL
- Killing_processes
- LEDs
- Lambda_directory_structure
- Lambda_handler_function
- Lambda_programming_model
- Lambda_triggers
- Lambdas_in_Python
- Latches
- Law_of_Non_Contradiction
- Law_of_the_Excluded_Middle
- Let's_Encrypt
- Lifecycle_methods
- LineageOS_backup
- Link_Layer_of_Internet_Protocol
- Linux_disk_partitions
- List_comprehension_in_Python
- Listing_and_navigating_directories_in_the_Shell
- Lists_and_arrays_in_Bash
- Lists_in_Python
- Local_AWS_development_with_SAM
- Logarithms
- Logic_gates
- Logical_consistency
- Logical_equivalence
- Logical_indeterminacy
- Logical_possibility_and_necessity
- Logical_truth_and_falsity
- Loops_in_Python
- Loops_in_bash
- MAC_addresses
- Machine_code
- Magnetic_core_memory
- Magnetic_drum_memory
- Magnetic_tape
- Mainframe_computers
- Managing_environments_in_NodeJS
- Map_and_filter_in_Python
- Map_and_filter_to_reduce_in_JS
- Mapped_types_in_TS
- Maps_and_sets_in_JS
- Match_statements_in_Python
- Matter_and_atoms
- Memoization_in_React
- Memory_Management_Unit
- Memory_addresses
- Memory_leaks
- Memory_versus_processor
- Middleware_in_NodeJS
- Mixed_and_improper_fractions
- Modelling_relationships_in_MongoDB
- Module_pattern
- Module_wrapping_at_runtime
- Modules_in_NodeJS
- MongoDB_Introduction
- MongoDB_connection
- Monitor_DNS_resolution_and_internet_connectivity_script
- Monitoring_processes_and_resources
- Morgan
- Motherboard
- Multiple_pointers
- Multiplexers_and_demultiplexers
- Multiplicative_identity
- Multiplicative_property_of_negative_one
- Multiplying_fractions
- Mutations_with_Apollo_Client
- Naming_conventions
- Natural_numbers
- Negation_Elimination
- Negation_Introduction
- Negative_exponents
- Network_card
- Network_fundamentals
- Network_hosts
- Network_packet_analysis_tools
- Network_protocols
- Network_requests_in_Python
- Network_scanning
- Network_tunnels
- NodeJS_scripts
- Node_and_MySQL_db
- Nodemon
- Non_null_assertion_in_TypeScript
- None_in_Python
- Numbers_in_Python
- Object_language_and_meta_language
- Observer_pattern
- Ohms_Law
- OpenSearch
- Operating_system_API
- Order_of_operations
- Package_management_in_NodeJS
- Packet_switching_British_precursors
- Pacman
- Passing_arguments_and_options_to_Bash_scripts
- Passing_arguments_to_Python_scripts
- Peer_to_peer_network
- Ping
- Ports_in_NodeJS
- Practical_walkthrough_Lambda_creation_within_AWS
- Prefixes_for_units_of_electrical_measurement
- Prime_factorization
- Primes_and_composites
- Primitive_types
- Printing_values_in_C
- Process_module_in_NodeJS
- Processes
- Prop_types_in_React
- Proper_shebang_syntax
- Props_in_React
- Prototypical_inheritance
- Proxies
- Push_buttons
- Python_application_structure
- Python_data_types
- Python_execution
- Python_interpreter
- Python_modules_and_imports
- Python_package_management
- Querying_a_Mongo_collection
- Queue
- Quote_marks_in_Bash
- RESTful_APIs
- ROM_versus_disk_loading
- React_Components
- React_application_structure
- React_errors
- React_useContext
- React_useEffect
- React_useReducer
- React_useState
- Read_command__in_Bash
- Reading_files_in_Python
- Reciprocals
- Recording_and_playback_of_sound
- Recursion
- Redirect_to_dev_null
- Redirection_in_Bash
- Reducing_fractions
- Register_and_cache_memory
- Regular_expressions_in_SQL
- Reiteration
- Relation_between_kernel_and_CPU
- Relational_database_architecture
- Relays
- Remote_tracking_branches
- Rename_a_branch
- Reset_to_remote_version
- Resistance
- Restructure_URLs_lambda
- Retrieve_data_from_SQL_table
- Role_of_memory_in_computation
- Role_of_unique_key_in_relational_databases
- Routing_on_link_click_in_React
- Rules_for_operations_on_like_and_unlike_terms
- S3
- SAM
- SQLite
- SSH
- Save_readonly_Vim_file
- Schema_Definition_Language_in_GraphQL
- Secrets_or_env_vars_in_AWS
- Semantic_versioning
- Set_DNS_settings
- Sets_in_Python
- Setting_up_and_configuring_TypeScript
- Setup encrypted harddrive
- Shell_sessions
- Signed_and_unsigned_numbers
- Signed_magnitude_representation
- Single_file_Python_scripts
- Singleton_pattern
- Sliding_window
- Solving_equations
- Sorting_lists_in_Python
- Soundness
- Split_into_array_in_Bash
- Stack_memory
- Stacks
- Stale_branches_and_pruning
- Step_functions_and_state_machines
- Strategies_for_constructing_proofs
- Streams_in_NodeJS
- Strings_in_Bash
- Strings_in_Python
- Structuring_Express_applications
- Substrings_in_Bash
- Swap_space
- Switch_between_Python_vers
- Syllogism
- Symlinks
- Syntax_of_propositional_logic
- Tags_in_Git
- Terraform
- Test_values_in_Bash
- Testing_Python_code
- Testing_basic_prop_passing_in_React
- Testing_with_Jest
- Text_manipulation_in_Bash
- The_History_of_Computing_Swade
- The_Little_Man_computer
- The_PATH
- The_Pragmatic_Programmer_1999
- The_kernel
- The_memory_hierarchy
- Theorems_and_empty_sets
- Threads
- Three_bit_counter
- Time_and_computers
- Torrenting
- Transistors
- Transport_Layer_of_Internet_Protocol
- Troubleshooting_MongoDB
- Truth_functional_connectives
- Truth_tables
- Truth_trees
- Tuples_in_Python
- Turing_completeness
- Turing_machines
- Twos_complement
- Type_guarding_and_narrowing_in_TS
- Type_hinting
- Typing_built_in_React_hooks
- UFW_firewall_management
- USB protocols and connectors
- USB-C
- Union_types_in_TS
- Unknown_type_in_TS
- Update_a_Mongo_document
- Update_an_SQL_table
- Update_existing_data_in_SQL_table
- Useful_operators_in_SQL
- Usenet
- User_Space
- User_agent
- User_management_in_Linux
- User_management_on_AWS
- Using a context manager in Python
- Using_GraphQL_with_Node
- Using_SQLite_with_Python
- Using_arguments_with_Apollo_Client
- Utilities_operators_flags
- Validating_Mongoose_schemas
- Validation_in_NodeJS
- Validity_and_entailment
- Variable_indirection_in_Bash
- Variables_and_data_types_in_Bash
- Variables_in_C
- View_IP_addresses
- Viewing_remote_changes_without_merging
- Views_in_relational_databases
- VirtualMemory
- Virtual_private_cloud
- Voltage
- Voltage_sources
- Weaving_the_Web_Berners_Lee
- What_are_disks
- What_can_the_ISP_see
- What_is_memory
- Whole_numbers
- Why_computers_use_binary
- Wildcards_in_SQL
- Williams_Tube_memory
- With_open_in_Python
- Working_with_CSVs_in_Python
- Working_with_JSON_in_Python
- Working_with_directories_in_Python
- Working_with_numbers_in_Bash
- Writing_to_files_in_Python
- Zero_property_of_multiplication
- Zip_function_in_Python
- a0ab0bfb_network_layer_clarification
- a247fa9b_surveillance_capitalism_not_necessary
- a4601796_trapdoor_functions
- a771a6d9_attributes_of_internet_enclosure
- b01fd836_Transport_Layer_clarification
- bbdcb54f_public_key_cryptography
- c301a0b3-1d8_Mosaic_Netscape_and_Browser_Wars
- c8173d17_TIMPs
- c8820974_Tor_prioritising_uptake
- c9d7492f_requerimiento
- cfbef1c4_web_precursors
- d212acdb_from_free-software_to_open_source
- e383b8b3_nginx_vs_traefik
- e470bf3d_IMPs_in_the_ARPANET
- ecec56e6_precursors_to_search_engines
- f0f70a3c_ARPANET_motivations
- f6564af9_AOL_and_early_internet_enclosure
- fbbfbc32-political-accommodation-inveigelment-surveillance-capitalism
- fs
- http_in_Node
- journald
- jq
- lsof
- ps
- python_advent_learnings
- systemd
- systemd_status
- tags
- v8