How to establish multiple connections on an one-to-many basis?

usually the server establishes multiple connections with the client, and the server accepts multiple connection requests. Can a node create multiple socket to connect to multiple nodes?

Network-programming socket
Dec.13,2021
  1. True knowledge comes from practice.
  2. my chrome can only visit one website at a time

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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-64f5-1b37018-2c043.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b37018-2c043.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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