docker c-plus-plus database docker-image sqlite-database travel transport relational-databases iata xapian relational-database soci por opentraveldata optd travel-request xapian-indexing por-data

application monitor fork cpp makefile web-application tcp-server packet-processing client-server network-server exec socket-programming bash-scripts travel-request vaccination-tracker

fork datastructures ipc signals processes named-pipes monitoring-server bash-script server-client-communication monitors signal-handling travel-request vaccine-tracker