How http-server specifies the entry page

if there is an index.html file in the project, this will be opened, and if not, the directory will be displayed. I want to specify how to operate a non-index.html file as an entry

Mar.28,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3a94b-41267.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3a94b-41267.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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