enter port: 1234
socket OK
 bind OK
 listen OK
 Server started at 127.0.0.1:1234
Server ready. Waiting for connections... 
got a connection from: 127.0.0.1:37725 IO::Socket::INET=GLOB(0x8d1ea38)
list
connect to this server:
client: 127.0.0.1:37725  5
127.0.0.1:37725 qwerty
Thread 1 terminated abnormally: : Bad file descriptor