Having a bit of a problem with mysql...
Mysql 5.1 on windows 2008 server iis7
Site on windows 2003 server iis6
[sorry but can't move to linux kids! ;)]
In the process of shifting a site to a new server so I have moved the database 1st and connected the site to the new database. I tested the connection before moving but now the site is connecting to the new database I am having problems....
connecting via PDO the page hangs for an age before getting 'too many connections' error. Monitoring the server I see MANY threads of: 'unathenticated user' from the ip address of the host the site runs on.
I also see a thread for the connection with the correct user name in my config file and I am a total loss as to what is going on.
Any help would be very much appreciated
'unathenticated user' from the ip address of the host the site runs on
A stab in the dark, but this could be some script or process trying to connect to the database server with wrong or empty credentials.
Also, here's a report from somebody who had similar problems - in that case, it was the DNS lookup that caused the problem.
I had a similar situation on my setup where the database lived on a different host than
the webserver. I found the "unauthenticated users" were connections from the webserver
that were hanging on DNS lookups. Don't know if this is a mysql bug or a bug with my
firewall / other setup, but a couple of fixes I found were...
1) start mysql with --skip-name-resolve (you may have to change your mysql permission
tables to have the host's IP instead of hostname, including localhost)
or 2) add the connecting host to your /etc/hosts file.
Related
I just set up a new MySQL database with the MySQL workbench & created a user for it with all necessary privileges. I am using this database for use with my php code. But I can't seem to connect to it on my live server (pages are hosted on windows server 2012). Everything works fine in my local environment with xampp and the new MySQL database is exactly the same as the xampp one. I think I am maybe using the wrong host name or something. As host name I copied the name that is displayed after "Host:" when you click on Server Status in MySQL workbench. The database name, user & password should all be correct. But when my code tries to access the db I get a "The domain page isn’t working. Domain is currently unable to handle this request."
You either have no network connection to the server at all or it is blocked due to firewall or routing misconfiguration.
If you do have network access in general, you might forgot to
FLUSH PRIVILEGES;
or you have not enabled networking over TCP, the default is to listen only to localhost (on unix systems via unix sockets, on microsoft I guess it's simply TCP).
Read about the following configuration parameter which will solve your networking issue:
bind-address
If you have a very old MySQL server version, the parameter is enable-networking but it shouldn't be the case anymore.
I have a Google Cloud SQL Instance that I have been using for some time now and connecting successfully from MySQL Workbench. However as of yesterday I can't connect using MySQL Workbench (or the command line on my laptop) and get the error:
ERROR 2003 (HY000): Can't connect to MySQL server on '207.xxx.xxx.xx' (10060)
I have done the following already:
Authorised my laptop's IP address (found using whatismyip.com) in the Google Console.
Assigned an IPv4 address to the database in the Google Console.
Created new users and passwords to see if it was a user issue. But that didn't help.
Restarted the instance, restarted my home network/laptop and got new IP addresses (and updated the authorised IP address accordingly).
Upgraded to the latest MySQL workbench 6.3 CE but still have the issue.
The database works as my app can connect to it and accesses the data, I just can't get a remote connection from my laptop.
I am new to this and am out of ideas on how to fix it. Any help would be greatly appreciated.
Thanks everyone for your help. After trying all of your suggestions I found a Google group and logged the issue. Google have responded to it as follows:
David Newgas: For now try connecting from a GCE instance (including cloud shell) or using a GCE instance to proxy connections from your laptop.
I have updated the dashboard with some more information (although it may take a while for you to see it due to caching)
To be clear, this issue will only be affecting first generation instances.
I did not have enough 'points' to comment, so I'll have my say here.
I am having about exactly the same issue. About 10 days ago I connected fine to the Cloud SQL instance, and synced my db up. Yesterday I was going to push some updates etc. But I could not connect, even though I have changed nothing in respect to the database connection, except for the given IPv4.
I figured the issue was with my Django project, based on the App Engine Skeleton, so I created an issue on that project.
https://github.com/GoogleCloudPlatform/appengine-django-skeleton/issues/16
Maybe/Hopefully some we get some information from there.
I had the same problem.
By pure luck I said "Let's try to connect with my local MySQL client while the gcloud command was saying
"Whitelisting your IP for incoming connection for 5 minutes..."
and (mysql local client) worked.
I am attempting to connect Tableau on a client (Windows 7) to a MySQL Server 5.6 (on Windows Server 2012 R2) that is hosting my data warehouse. This server is hosted on my university's network. Here is what I have done so far:
created a user that has privileges it needs (I ran GRANT ALL PRIVILEGES ON the user with FLUSH PRIVILEDGES, based on some other stack overflow posts)
made sure the host specified in the user table is "%"
made sure there was nothing in the my.cnf file that would prevent external connections (again based on another stackoverflow post)
ensured that the edition of MySQL running on the server is 64 bit, like the version of Tableau I'm running
I still get the "[MySQL][ODBC 5.3(w) Driver]Host 'vpn240-74.vpn.utah.edu' is not allowed to connect to this MySQL server" error. This same error is thrown when I try to telnet to the port on the server MySQL is listening on.
I have found that this error persists whether I am connected via a vpn or on campus. I can RDP to the server in question, ping it, and found the firewall rule for the port I am using, so I don't think there is anything network related that is stopping me.
All my stackoverflow research says that error means MySQL is convinced that the user is not allowed to connect from that specific hostname, but I get the same error whether I change the entry in the user table to be "%" or the specific hostname from the error message.
Also I see that the Tableau MySQL driver I installed is a lower version number than the MySQL instance I'm trying to hit (5.3 vs 5.6) but that is the newest driver on the Tableau site that I can find.
Any help greatly appreciated.
Have you tried making an ODBC connection in your computer to your MySQL server and testing it that way?
Tableau can then connect via an ODBC connection made rather than the explicit Tableau MySQL driver. In Tableau under More Servers... Other Databases (ODBC) shows up at the very bottom.
First of all I apologize for my English is not perfect.
I'm trying to connect to mysql database remotely.
I have already done the basic steps such as, for example, comment the bind address in my.cnf.
I gave permissions to the appropriate users in MySQL.
I tried with my friend to do it connect to the database, and it worked but we were in the same room with the same router.
Now I'm home and I tried to connect my friend, but I always get error:
ERROR 2003 (HY000): Can not connect to MySQL server ....
Maybe it's a problem of my home router? I can not even do the telnet.
P.S. I've also taken steps to set the firewall.
Some reasons for that,
mysqld is not running on the local host. Check your operating
system's process list to ensure the mysqld process is present.
You're running a MySQL server on Windows with many TCP/IP connections
to it. If you're experiencing that quite often your clients get that
error, you can find a workaround here: Section B.5.2.2.1, “Connection
to MySQL Server Failing on Windows”.
Check whether the server is running on that host by executing telnet
some_host 3306 and pressing the Enter key a couple of times. (3306 is
the default MySQL port number. Change the value if your server is
listening to a different port.) If there is a MySQL server running
and listening to the port, you should get a response that includes
the server's version number. If you get an error such as telnet:
Unable to connect to remote host: Connection refused, then there is
no server running on the given port.
Look at this mySQL full documentation, it will be helpful.
I have a windows server where Plesk is installed with php & mySQL by default (from Hosting Provider). When I first got the server I remember I removed mySQL from Control Panel since I didn't need it, but after like one year, I came to a point where I have to create a Wordpress website, and therefore I am needing mySQL again.
Note also that there's two mySQL, one for Plesk (which I didn't uninstall), and another one for our databases (which I uninstalled long ago, but reinstalled later).
I went to Plesk under Database Servers, and I can see there's no Database Servers there... Then I try to Add Database Server with the following settings:
Hostname: localhost
Port: 3306
With Admin Username & Password...
But I am getting the following error:
Error: A database server with this combination of host address and port number is already registered.
Please note that this is surely different from the mySQL settings for Plesk since the port is different.
Do you guys have any idea how to resolve this issue? I've been stuck since a few days...
I appreciate your help guys that's urgent!
Thanks.
Looks like inconsistency in plesk database "psa" related to entity of database servers.
Most easy workaround it's to register new database server not as "localhost", but as "127.0.0.1" or some other name which can be resolved to localhost or other port.
Another workaround it's to look into psa database via "%plesk_bin%\dbclient.exe" --direct-sql --sql="select * from databaseservers".