Hi, I saw many Q&As regarding this problem.Here is what I did for troubleshooting: I saw that the server is listening on the SQL default port:netstat -ntlp | grep 3306tcp6 0 0 :::3306 :::* LISTEN 3092/mysqld /etc/mysql/my.cnf was empty IpTables was empty. telnet <My IP> 3306 -> resulted in correct manner I feel a little bit clueless… If someone can help I would be gracious. Also, I would be happy to understand exactly what does this error say, b/c if I try to connect with my MySQL workbench to some random IP I get a different error. Many Thanks,Tomer.

Lost connection to MySQL server at 'reading initial communication packet', system error: 0

Posted March 31, 2019
MySQL CentOS

Hi,

I saw many Q&As regarding this problem. Here is what I did for troubleshooting:

I saw that the server is listening on the SQL default port: netstat -ntlp | grep 3306 tcp6 0 0 :::3306 :::* LISTEN 3092/mysqld
/etc/mysql/my.cnf was empty
IpTables was empty.
telnet <My IP> 3306 -> resulted in correct manner

I feel a little bit clueless… If someone can help I would be gracious. Also, I would be happy to understand exactly what does this error say, b/c if I try to connect with my MySQL workbench to some random IP I get a different error.

Many Thanks, Tomer.

Tomer Zaks

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unixynet • April 1, 2019

This is confusing indeed. Error 0 means success.

$ perror 0
OS error code   0:  Success

Can you add this to your [mysqld] section in my.cnf:

bind-address = 0.0.0.0

Restart MySQL. Can you also post the output of this command from your workstation (not server):

telnet DROP.LET.IP.ADDRESS 3306

Cheers

cheanaydoo • July 14, 2020

Had same problem and tried this and it worked;

CREATE USER username@'%' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'username'@'%' ;
flush privileges;

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