I am very frustrated that I am trying this from over 5 days.
I need to create database on my PC that has to be visible for all other PCs in the same LAN.
I tried with XAMPP - Apache + MySQL - no result even after reading all articles from first 2 pages of Google and watching many youtube clips.
Now I am trying with MySQL Server 8.0 on my PC. I tried again all of Google first pages stuff without result. How can I do that?
I know that this has been asked many times here but there is no complex solution at all.
Does anybody of you have tutorial that is tested nowadays and it is working?
you should provide more details like the error message you get when connecting to the remote mysql server, anyway, to allow remote access, here is a checklist you need to go through:
grant permission, mysql by default only allow access from localhost(127.0.0.1), to allow other ip access:
// replace root for the username, '123456' for the password
grant all privileges on . to 'root'#'%' identified by '123456';
flush privileges;
check your server firewall settings to allow your mysql through port 3306(default)
others:
for linux server I think you also need to comment out "bind address" in your mysql config file;
some other issues for example your mysql client autodetect the wrong timezone, you may need to manually set it;
check your inbound rule on your client pc;
etc.
my suggestion for you, don't just google around blindly, think about it logically first, sometimes there is no direct answer
The problem was in connection String.
static final String USERNAME="[username]";
static final String PASSWORD="[password]";
static final String CONN_STRING="jdbc:mysql://[ip-address]:[port]/[database-name]";
So as LIU YUE suggested I just granted access for this username. The problem was that my other computer has a different name.
Related
I have an azure app service, using the latest wordpress image from docker hub. The screenshot for the azure app service:
Then in the azure app service -> application setting, I added the following key/value pairs which will be used to connect Azure database for mysql:
WORDPRESS_DB_HOST
WORDPRESS_DB_NAME
WORDPRESS_DB_PASSSWORD
WORDPRESS_DB_USER
screenshot:
Inside my Azure database for mysql, I have enabled public access / allow public access from any azure service / also add my client ip and this ip range 0.0.0.0 - 255.255.255.255. I can access it from my client and create the database which will be used by azure app service. Screenshot like below:
in server parameters, I also turn off the require_secure_transport setting:
At last, I tried to launch the site, but it throws the error "Error establishing a database connection", screenshot below:
I'm new to wordpress / docker, and don't know how to fix this issue. I also reviewed some videos / docs, and didn't see any other configuration differences. Could you please guide me how to fix this issue? Thanks very much.
You received this error message.
Warning: mysqli_real_connect(): (HY000/1045)>: Access denied for user 'ivan'#'52.xx.xxx.xx' (using password: YES)
It means MySQL received, processed, and rejected your WordPress instance's attempt to connect. So you know the hostname is right and your cloud provider's firewall settings allow your WordPress instance to exchange network data with your MySQL instance.
What's wrong?
MySQL's user name / account name setup has a quirk. An account name can look like 'ivan'#'localhost' or 'ivan'#'%' (or even something like 'ivan'#'192.0.22.33').
The first of those only allows login from localhost (or via tunneling via ssh). The second allows login from '%', meaning any host. You need the second one for your WordPress instance to get access to MySQL.
When you're logged in to MySQL from your machine, do this.
SELECT host, user FROM mysql.user WHERE user='ivan';
You should see two rows, like these
host user
---- ---
% ivan
localhost ivan
It's possible the account with '%' as the host is missing. If so that means you need to create another MySQL account and give it access to your database. Do that like this.
CREATE USER 'ivan'#'%' IDENTIFIED BY 'your_password';
FLUSH PRIVILEGES;
Next, make sure the user account you just created -- the one your WordPress software will use to connect to MySQL -- has access to your database.
GRANT ALL PRIVILEGES ON wordpress.* TO 'ivan'#'%';
FLUSH PRIVILEGES;
If you still get the error message, it's possible the password on your 'ivan'#'%' account doesn't match what you put into your WordPress configuration. You can change it with
ALTER USER 'ivan'#'%' IDENTIFIED BY 'your_password';
FLUSH PRIVILEGES;
If it still gives the same error message, it's possible that your cloud vendor requires TLS to connect to MySQL. You may want to consult their support team about that.
(This is a common stumbling block setting up new WordPress instances.)
ok just to keep and make things clear. all IPs can connect to the DB but are you actually authorized to read/write date in the DB?
I.E. this might be a permission/privilege issue.
I suggest double checking user privileges and determine who can do what on your DB
Best Regards. :-)
I have a hosted MySql server with many databases each with many views. I access the server remotely from my office using HeidiSql.
Once in a while the IP address of my office changes. When this happens, I have to add the new office IP address to the server using cPanel and the "Remote MySql" tool so that I can remotely connect again.
However, all of the views have definer: USER#OLD_IP_ADDRESS. If I need to change a view, I get Access Denied. Up to now, I have been deleting the view (yes, i can delete the view) and recreating it, which makes the view's definer USER#NEW_IP_ADDRESS, and then I can edit the view -- until the Ip address changes again.
So, my question is: What is the best practice is an environment like this. Is there a way to define the views once and, without causing a security risk, be able to edit the views after an IP Address change.
Thanks for any guidance.
You could loosen the host in the MySQL user account a bit, according to the IP range of your internet provider. That way, you don't need to change it every time you get a slightly different IP:
user#123.456.789.%
user#123.456.%
This of course loosens the security in this account, but if your password is be a good one, it should not be too risky.
A better way is to make the MySQL server only accessible via SSH. In that case, your MySQL server can be set up using the --skip-networking option, as you always connecting from localhost. Your user account can be user#localhost or user#127.0.0.1, which then would solve your above mentioned problem for all times.
HeidiSQL also supports SSH tunneled MySQL connections, see here for some tutorial.
I just exported my tables from one web host to another (AWS).
Thinking everything would go smoothly (yeah right), well, everything that can go wrong has gone wrong.
I get this error when trying to query my database (which I didn't get before):
SQLSTATE[HY000] [1130] Host '<my ip address>' is not allowed to connect to this MySQL server
This is the same error from this post:
Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server
The solution in that post seems to revolve around having an administrative user. I am developing a chat application so every user needs to access the server (so I'm sure it's a bad idea to give them all administrative privileges).
The answer by Pascal in that link says, If you are using mysql for a client/server application, prefer a subnet address. but I honestly don't understand what he means by that. And because of the amount of solutions, I'm not exactly sure which one I should follow based on my case.
How do I resolve this?
MySQL has security tables that determine who is allowed to connect and from what host IP address.
Here's a good article on how to do it:
http://www.cyberciti.biz/tips/how-do-i-enable-remote-access-to-mysql-database-server.html
If you have a lot of connections, consider setting up a server to accept the connections and talk to the sql server. The easiest approach to this is to set up a REST interface and use a web server. Web servers are usually also highly optimized and relatively bug free.
In a similar architecture on AWS, I use nginx happily.
Make sure you have bind-address=YOUR-SERVER-IP in my.cnf and make sure you have a user hd1#172.31.39.86 or hd1#%, the latter being a MySQL wildcard on the MySQL server. More information here. You may also need to grant access to port 3306 (the default MySQL port) on the security groups section of the AWS console.
// IN YOUR MYSQL WORKBENCH You Have to Execute below query
CREATE USER 'root'#'1.2.1.5(Your Application Server IP)' IDENTIFIED BY 'pass';
GRANT ALL PRIVILEGES ON *.* TO 'root'#'10.200.1.54' WITH GRANT OPTION;
AFTER CREATING YOU CAN VIEW USING BELOW QUERY
SELECT * FROM mysql.user WHERE User = 'root';
i've setup a new mysql user on a server that allows access from other servers. i can access it from my dev machine using the credentials i setup.
But on one of my other servers nothing happens when trying to log into mysql using the same credentials that worked on my dev box. any ideas what it might be?
all it does is hang.
Nothing gets added to log files on either the new DB server or the one i'm trying to access from.
i also tested this connection from another server, just to test if my dev box was a fluke andi could access. So all i can think is there's something "wrong" with the server i cant access from.
Please post your query that executes to create this user and privileges.
If you can’t remember the queries you can execute this in your target server to get details about user
SHOW GRANTS for 'root'#'localhost';
You may check these things also .
Firewall setup for the server from the trouble machine.
Can this machine connect to another sql server provided with similar access?
Execute select * from mysql.user ; and check you don’t have duplicates with
different access privileges or passwords .
turns out i had everything setup correctly, as i said i was able to use the same user across other servers just not this one.
turns out my server provider had a network firewall restricting mysql connections. removed and hey presto.
thanks #csf
I have a database to work with. There is phpMyAdmin and it works good but I want to use an external database manager. I use the same login account what PhP script uses, still query browser doesnt see a database.
Anyone can know why?
I would guess that with phpMyAdmin, you are accessing MySQL from the WebServer that has IP address 1.0.0.1.
Then, from the external DB manager, you are accessing from IP address 1.0.0.2.
MySQL handles authentication and authorization using IP address (among other things) to authorize. So it's probably the case that you don't have all permissions for 1.0.0.2 in your MySQL database.
Your account is probably limited to 'localhost' only, try adding 'user'#'remote-ip' aswell.
For example:
GRANT ALL ON db.* TO 'jsmith'#'office.example.com' IDENTIFIED BY 'password';
FLUSH PRIVILEGES;