What does Capistrano mean
It is an old Italian name. "Strano" means strange and during the time period when surnames were adopted, various suffixes were added to people's names in Italy differentiate between families with similar names. Someone with a name like Capitano (several variations are Italian surnames today) probably moved to a town where a Capitano family already lived and the new name stuck.
Alternatively, "capi" means understand in Italian, so it could come from "understand strange", like a translator, and the orginal Capistrano was an early forerunner of ItalianDict.com.
San Juan Capistrano is the name of two Missions, one in California and the other in Texas. The literal meaning is Saint John of Capistrano. Capistrano is in turn a city in Italy. St. John of Capistrano lived during the 15th century.
One probable reason for the naming of the California Mission could be that the swallows that are home to the area supposedly migrate on October 24th, the day of St. John's death.
Capistrano is an open source tool for running scripts on multiple servers; its main use is deploying web applications. It automates the process of making a new version of an application available on one or more web servers, including supporting tasks such as changing databases.
Wiki says that St. John took his name from the city of his birth: Capestrano, but his name was: Giovanni da Capistrano.
I love the accuracy of Wiki. This wiki article says that his name was Giovanni da Capestrano and he was born in the village of Capistrano. (just the opposite of the other article).
Anyway, he was Italian. I'd welcome you to the forum, but this article seems to be a few years old.