"For a truly secure connection, you need to put in place a custom server certificate immediately after installing EXAOperation.": Logically, we are talking rather about installing cluster / DB.
"The certificate is signed by an Exasol Certification Agency (CA) and your machine does not have that CA’s certificate pre-installed": Really? For my Exasol Community Edition default certificate chain consists of only 0 level.
Using Your Own Certificates
"Open SSL": an unneeded space.
"certificate extensions.To": a space is missing.
"This header can be used for find a set of options in the configuration file" -> finding?
"information. : The key": an unneeded colon.
"You could drop that option if you wanted, because this is the default for certificates." -> want?
"No we are all set to install the certificates." -> Now?
"win any price" -> prize?
"/etc/mysql/mysql.conf.d/mysqld.cnf ": unneeded space is highlighted.
"OpenSSL's sclient" -> s_client?
"MySQl" -> MySQL?
"Copy the driver to the default Bucket" should, probably, refer to MySQL JDBC driver, not to tls-tutorial.jar. Applies to the remainder of "Installing the MySQL JDBC driver in Exasol" section as well.
Formatting right after "You are now set up and ready to run the import." is broken.
TLS in User Defined Functions (UDFs)
TLS With Exasol
Using Your Own Certificates
tls-tutorial.jar
. Applies to the remainder of "Installing the MySQL JDBC driver in Exasol" section as well.