mysql client connection hostname question

Have a question that I can't seem to find an answer for. I am trying to connect to a remote database. I ty开发者_如何学Gope in the following to my Ubuntu shell:

mysql -u test -h mysql.domain.com -p

mysql asks for my password and then outputs the following:

ERROR 1045 (28000): Access denied for user 'test'@'externalit.domain.com' (using password: YES)

The problem is that I am not on externalit. I am on a completely different host. I think that the server I am on was cloned from externalit, but I didn't set the server up. My question: does mysql have a conf file or other setting that may be automatically entering an incorrect hostname? Can I change this?

---

That's the name that the server thinks goes with your IP address. It could be do to a DNS setting (it's trying a reverse-DNS), or something in the /etc/host file (mapping that IP to that host).

---

You need to make sure the reverse DNS on the machine you are connecting from matches the address for the user. If you are on a shared IP or can't control the reverse DNS then change the permissions on the user to 'test'@'%' this will allow anyone from any ip address connect as long as they have the correct username/password pair. of course this opens up some security issues.

You can prevent mysql from doing reverse lookups and then use 'test'@'123.123.123' as the user/host but unless you are on a fixed IP that could cause issues.

DC

---

Try adding a protocol option:

mysql -u test -h mysql.domain.com --protocol=tcp -p

and/or try adding a port explicitly:

mysql -u test -h mysql.domain.com -P3306 --protocol=tcp -p

(see: http://dev.mysql.com/doc/refman/5.1/en/mysql-command-options.html#option_mysql_protocol)