MySQL connection error - mysql

When I am trying to use SQLyog to connect to my MySQL database, it is giving the error like
Error No. 2005
Unknown MySQL server host 'database.ch3.s.com' (11004)
Any idea what can be the issue?

Have you tried pinging the hostname, go to the command prompt and type 'ping database.ch3.s.com'
I have found scenarios where the database hostname is not available to external connections (ping will fail) but it works on the server. In this case you simply can't create an external connection to the database and will have to use the servers phpMyAdmin or equivalent.

Databse server may be down or there might be a proxy server which can prevent you to access the DB server.

The address of the MySQL databases seems to be invalid. The address 'database.ch3.s.com', is this a subsitute or is this the real address you are using?

Related

Connection failed in using mysqlconnector ODBC to connect from sql to access

I am trying to connect mysql database in phpmyadmin to the access file. I am using mysqlconnector ODBC for that. Tutorial I am following is this
The problem is that when I give the credentials to connect to database, it gives me error as shown in this snapshot
I have tried hard to search on internet but failed. What mistake I am doing. I am putting the ftp information of the server there. Is there any database credentials i need to put?
You can't use the FTP credentials to connect the MySQL database. You have to use the database credentials. Make sure you have done followings before connecting.
Make sure MySQL server is up and running on the HOST IP and PORT.
Your MySQL server can accept connections from your IP or use % for
all IPS
Make sure you have a valid USER account
EDIT
Or tell us where(local server, internet, IP) the MySQL database is installed. The port number the server is listening on. How you access MySQL server normally.

Mysql not generating log when connection fails

I am continuously getting below error while connecting to mysql-
Can\'t connect to MySQL server on /ip/address
but mysql is not generating any log for this error. I have below entries in my.cnf file
log=/var/log/mysql_err.log
log-error=/var/log/mysql/mysql_error.log
I am using correct credentials. No issue of conections.
Now how will I determine the exact issue If I'll not get any log ?
Any Idea, how to solve this ?
This is not surprising:
the server can only log an incident it is aware of. However your client does not even reach the server at all! So how should the server know some client has attempted to contact it?
The error message you get clearly indicates that you do have a connection issue.
You can easily make a test to check the most common problems: just open a telnet connection from the system trying to connect to the system the sql server runs on, connect to the mysql port: telnet <ip-of-mysql-server> mysql
On typical unixoid systems "mysql" will be substituted by the "well known port number of mysql, which is 3306. otherwise you have to specify it manually. Do you get a connection at all? I would guess not. This means either the mysql server is not listening where expected (not running or configured otherwise) or the connection is blocked on network level (firewall).

Error No. 2003. Can't connect to mysql server

I has had two days searching and exploring solutions regarding the error 2003.
Can't connect to mysql server on 'Server name'.
The firewall is off and I had added the port 3306, the one that mysql uses.
Any recommendation?
Please refer this FAQ which describes how to solve this issue: http://faq.webyog.com/content/23/15/en/error-no-2003-can_t-connect.html
Error No. 2003: Can't connect to MySQL server on 'localhost' (or some other host)
simply means that connection is not possible for one of the following (or similar) reasons:
There is no MySQL server running at the specified host
Connection to the MySQL server is not allowed using TCP-IP. Check the 'skip-networking' setting in the MySQL configuration file (my.ini on Windows, my.cnf on Unix/Linux). It shall be commented out like '#skip-networking'. If it is not commented out, then do it and restart the MySQL server for the change to take effect. SQLyog needs to connect using TCP-IP.
Some networking issue prevents connection. It could be a network malconfiguration or a firewall issue.
When trying to connect to a MySQL server at an ISP this error message often indicates that direct connection to MySQL has been blocked. You must then use HTTP-tunneling or SSH-tunneling to connect.
It worked for me.controll pannel->administrative tools->services->mysql and start mysql.Some times simple solution saves lot of time.
normally means that there is no MySQL server running on the system .
check your server running
this could be due to firewalls of the system try below command and check
service iptables stop
i have the same issue but i fix it.
my hostname is DEBIAN, i just modify the file my.cnf ( for mysql) and set bindaddress : 0.0.0.0
this option say to mysql to listen all interfaces. restart your server and finish
if your question refer to can't connect to mysql on hosting (cpanel), i also had same problem.
I also turn off firewall, but it doesn't solve my problem.
Rather than using server name or domain name on Mysql Host Address, i using ip address given by hosting provider.
And it works.
Going to services and starting MYSQL service doesn't work for me.
Finally, I hit the following commands inside the MYSQL command-line client:
ALTER USER 'username'#'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
There is a high chance that you are making one of the two mistakes.
First :
You are inputting the wrong password. check your password or change it with
this command
ALTER USER 'root'#'localhost' IDENTIFIED WITH mysql_native_password BY 'very_strong_password';
In place of 'very_strong_password' give a strong password of your choice.
Second:
You are using '#' in the password which can be confused with the other with #localhost.
The SQL Sever might not be installed.
Please refer this to install:
MySQL
The solution worked for me
Go to services and start MySql services
window: press the start button and search services. Then star MySql services

Exception EZSQLExeption in module VDB1.exe at 002A7A5C. SQL Error: Host'Gareth-PC' is not allowed to connect to this MySQL server

I am using Delphi xe2 and I would like to know qhat this error is and by what means I need to get around this, I am attempting to connect my database application to a wamp server through a LAN connection and I seem to have the Hostname username password and port correct but when I attempt to log into the MySQL database I get this error:
(Exception EZSQLExeption in module VDB1.exe at 002A7A5C. SQL Error:
Host'My-PC' is not allowed to connect to this MySQL server)
Could you please give me a way to get around this? Thanks.
The error message states:
Host 'My-PC' is not allowed to connect to this MySQL server
And this would indicate that the SQL server is blocking your client based on its host name, 'My-PC'. So, you need to configure your MySQL server to allow connections from that host.

VB.net - Connect to Database

I got mysql database in the phpmyadmin, and i try to connect to the database from my application.
My connection string is:
Server=12.919.18.12;Port=3306;Database=hbd;Uid=hb;Pwd=123;
An exception occurs:
"Unable to connect to any of the specified MySQL hosts."
Do I need to install mysql or something?
(I just imported MySql.Data.dll and tryied it. Is there anything I have forgotten? I checked the ip pinging my website).
Connection strings for MySQL
is pretty helpful in terms of connection strings. Your connection
string seems to be invalid.
You may check mysql server is working or not and you can add port number of mysql in connection string like this
"Server=myServerAddress;Port=1234;Database=myDataBase;Uid=myUsername;Pwd=myPassword;"
Other reason MySql might be configured to listen to only the local host.
Follow the following links for more information:
Enabling MySQL Remote Access - MySQL connection only works from local machine
Unable to connect to any of the specified MySQL hosts.
IP is invalid 12.919.18.12
Server=12.919.18.12;Port=3306;Database=hbd;Uid=hb;Pwd=123;
IP block is < 256
If the datababase is local, try localhost or 127.0.0.1 as the IP address.
Is the server on your network? If so, the IP is invalid. If I were you, I'd try to check the IP with the person who gave it to you.
the connection string is correct but as ive read a lot of forums they all have the same problems as you do. my solution is that if your trying to create a network base system on a LAN type network you should use XAMPP or WAMPP but i prefer xampp and double check if your accounts or users have an Admin or any other user name for your connection and then see if they have granted all the privileges and with password of course.
Here is the ff instructions:
Open Xammp
Then open a web browser then open 127.0.0.1 or localhost.
click phpmyadmin then at the top click privileges.
add user and make it sure allow all privileges and check all access.
then connect again using the same connection string with the proper user and password.
This issue is RESOLVED :)
try to put the PORT in the end like :
"Server=12.919.18.12;Database=hbd;Uid=hb;Pwd=123;Port:3306;"