Connect MySQL not using local host [duplicate] - python

This question already has an answer here:
1045, "Access denied for user 'username'#'NOT-local' (using password: YES)"
(1 answer)
Closed 7 years ago.
I am trying to connect to mySQL DB in python, not through my local host, when I connect through localhost I do it like this
db = MySQLdb.connect(host='localhost', user='root', passwd='my-pass', db='my-database')
But now I am not sure what do I put as the host, in this line of code, everything else will be the same, but what do I put as the host, when Im not local?
Or do I need to make a new user to do this, if possible I would like to do with same user.
Thanks

Server's IP
db = MySQLdb.connect(host='mysql4.host.something', user='root', passwd='my-pass', db='my-database')

1) You have to know your hosts IP adress. You can ping your webside on command.
2) Your host parameter should be your IP adress
3) You need to create your database on your Cpanel or Plesk panel and have to write username and password parameters. You create the user while creating the database.

As a matter of practice, you should not be using user 'root' to query the database. 'root' is intended to be used strictly for database administration tasks such as starting, stopping, backing up, managing user accounts &c.
You should create a new user 'spenf10'#'%' (the #'%' part will allow you to log in from any IP address or hostname), then GRANT ALL PRIVILEGES ON *.* TO 'spenf10'#'%' to give yourself access to all the data, and use that user account for all data access. (Change 'spenf10' to whatever name you want to use.)
NOTE I am assuming you own the server where you want to do this, ie. it is the same box you connected to via localhost. If this is not the case, you will have to discuss the matter with the person who does own the box.

Related

How can i connect with python to an online database? [duplicate]

This should be dead simple, but I cannot get it to work for the life of me.
I'm just trying to connect remotely to my MySQL server.
Connecting as:
mysql -u root -h localhost -p
works fine, but trying:
mysql -u root -h 'any ip address here' -p
fails with the error:
ERROR 1130 (00000): Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server
In the mysql.user table, there is exactly the same entry for user 'root' with host 'localhost' as another with host '%'.
I'm at my wits' end and have no idea how to proceed.
Any ideas are welcome.
Possibly a security precaution. You could try adding a new administrator account:
mysql> CREATE USER 'monty'#'localhost' IDENTIFIED BY 'some_pass';
mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'#'localhost'
-> WITH GRANT OPTION;
mysql> CREATE USER 'monty'#'%' IDENTIFIED BY 'some_pass';
mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'#'%'
-> WITH GRANT OPTION;
Although as Pascal and others have noted it's not a great idea to have a user with this kind of access open to any IP. If you need an administrative user, use root, and leave it on localhost. For any other action specify exactly the privileges you need and limit the accessibility of the user as Pascal has suggest below.
Edit:
From the MySQL FAQ:
If you cannot figure out why you get
Access denied, remove from the user
table all entries that have Host
values containing wildcards (entries
that contain '%' or '_' characters). A
very common error is to insert a new
entry with Host='%' and
User='some_user', thinking that this
allows you to specify localhost to
connect from the same machine. The
reason that this does not work is that
the default privileges include an
entry with Host='localhost' and
User=''. Because that entry has a Host
value 'localhost' that is more
specific than '%', it is used in
preference to the new entry when
connecting from localhost! The correct
procedure is to insert a second entry
with Host='localhost' and
User='some_user', or to delete the
entry with Host='localhost' and
User=''. After deleting the entry,
remember to issue a FLUSH PRIVILEGES
statement to reload the grant tables.
See also Section 5.4.4, “Access
Control, Stage 1: Connection
Verification”.
One has to create a new MySQL User and assign privileges as below in Query prompt via phpMyAdmin or command prompt:
CREATE USER 'username'#'localhost' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'username'#'localhost' WITH GRANT OPTION;
CREATE USER 'username'#'%' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'username'#'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;
Once done with all four queries, it should connect with username / password
My error message was similar and said 'Host XXX is not allowed to connect to this MySQL server' even though I was using root. Here's how to make sure that root has the correct permissions.
My setup:
Ubuntu 14.04 LTS
MySQL v5.5.37
Solution
Open up the file under etc/mysql/my.cnf
Check for:
port (by default this is port = 3306)
bind-address (by default this is bind-address = 127.0.0.1; if you want to open to all then just comment out this line. For my example, I'll say the actual server is on 10.1.1.7)
Now access the MySQL Database on your actual server (say your remote address is 123.123.123.123 at port 3306 as user root and I want to change permissions on database 'dataentry'. Remember to change the IP Address, Port, and database name to your settings)
mysql -u root -p
Enter password: <enter password>
mysql>GRANT ALL ON *.* to root#'123.123.123.123' IDENTIFIED BY 'put-your-password';
mysql>FLUSH PRIVILEGES;
mysql>exit
sudo service mysqld restart
You should now be able to remote connect to your database. For example, I'm using MySQL Workbench and putting in 'Hostname:10.1.1.7', 'Port:3306', 'Username:root'
Just perform the following steps:
Connect to MySQL (via localhost)
mysql -uroot -p
If the MySQL server is running in Kubernetes (K8s) and being accessed via a NodePort
kubectl exec -it [pod-name] -- /bin/bash
mysql -uroot -p
Create user
CREATE USER 'user'#'%' IDENTIFIED BY 'password';
Grant permissions
GRANT ALL PRIVILEGES ON *.* TO 'user'#'%' WITH GRANT OPTION;
Flush privileges
FLUSH PRIVILEGES;
You need to grant access to the user from any hostname.
This is how you add new privilege from phpmyadmin
Goto Privileges > Add a new User
Select Any Host for the desired username
Simple way:
Grant All Privileges ON *.* to 'USER_NAME'#'%' Identified By 'YOUR_PASSWORD';
then
FLUSH PRIVILEGES;
done!
The message *Host ''xxx.xx.xxx.xxx'' is not allowed to connect to this MySQL server is a reply from the MySQL server to the MySQL client. Notice how its returning the IP address and not the hostname.
If you're trying to connect with mysql -h<hostname> -u<somebody> -p and it returns this message with the IP address, then the MySQL server isn't able to do a reverse lookup on the client. This is critical because thats how it maps the MySQL client to the grants.
Make sure you can do an nslookup <mysqlclient> FROM the MySQL server. If that doesn't work, then there's no entry in the DNS server. Alternatively, you can put an entry in the MySQL server's HOSTS file (<ipaddress> <fullyqualifiedhostname> <hostname> <- The order here might matter).
An entry in my server's host file allowing a reverse lookup of the MySQL client solved this very problem.
This working for any future remote mysql connection !
sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf
Navigate to the line that begins with the bind-address directive. It should look like this:
bind-address = 0.0.0.0
Login to your mysql as root terminal
mysql -u root -p
-- root password
CREATE USER 'username'#'localhost' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'username'#'localhost' WITH GRANT OPTION;
CREATE USER 'username'#'%' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'username'#'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;
EXIT;
finally Grant that machine exclusive permission to connect to the database remotely with the following command.
sudo ufw allow from remote_IP_address to any port 3306
If you modify the grant tables manually (using INSERT, UPDATE, etc.), you should execute
a FLUSH PRIVILEGES statement to tell the server to reload the grant tables.
PS: I wouldn't recommend to allow any host to connect for any user (especially not the root use). If you are using mysql for a client/server application, prefer a subnet address. If you are using mysql with a web server or application server, use specific IPs.
Just use the interface provided by MySql's GUI Tool (SQLyog):
Click on User manager:
Now, if you want to grant access FOR ANY OTHER REMOTE PC, just make sure that, just like in the underneath picture, the Host field value is % (which is the wildcard)
Most of the answers here show you creating users with two host values: one for localhost, and one for %.
Please note that except for a built-in localhost user like root, you don't need to do this. If you simply want to make a new user that can log in from anywhere, you can use
CREATE USER 'myuser'#'%' IDENTIFIED BY 'mypassword';
GRANT <whatever privileges are appropriate> ON <relevant tables> TO myuser;
and it will work just fine. (As others have mentioned, it's a terrible idea to grant administrative privileges to a user from any domain.)
If you are using MySQL WorkBench, you can achieve this easily:
From the menu, select Server -> Users And Privileges
On the lower left, click on "Add account"
Fill the form with username, host matching (% means every host) and the password
Click on "Apply" on the lower right
After this you are good to go. Then, if you want to refine your configuration, you can use the "Administrative Roles" tab to set the command that can be used by the user (SELECT, ALTER etc etc) and the "Schema privileges" tab to restrict the user interaction to specific schemas.
Well, nothing of the above answer worked for me. After a lot of research, I found a solution. Though I may be late this may help others in future.
Login to your SQL server from a terminal
mysql -u root -p
-- root password
GRANT ALL ON *.* to root#'XX.XXX.XXX.XX' IDENTIFIED BY 'password';
This should solve the permission issue.
Happy coding!!
simple way is to login to phpmyadmin with root account , there goto mysql database and select user table , there edit root account and in host field add % wild card . and then through ssh flush privileges
FLUSH PRIVILEGES;
If this is a recent mysql install, then before changing anything else, try simply to execute this command and then try again:
flush privileges;
This alone fixes the issue for me on Ubuntu 16.04, mysql 5.7.20. YMMV.
Just find a better way to do that from your hosting control panel (I'm using DirectAdmin here)
simply go to the target server DB in your control panel, in my case:
MySQL management -> select your DB -> you will find: "Access Hosts", simply add your remote host here and its working now!
I guess there is a similar option on other C.panels like plesk, etc..
I'm hope it was helpful to you too.
If you happen to be running on Windows; A simple solution is to run the MySQL server instance configuration wizard. It is in your MYSQL group in the start menu. On the second from last screen click the box that says "allow root access from remote machines".
CREATE USER 'username'#'localhost' IDENTIFIED BY 'password';
FLUSH PRIVILEGES;
this error because no password to the root , and this Maybe occurred with you when you trying to connect from outside .
If you have WAMP Server + Windows 10 and you are using it for development than Right Click on Wamp Icon => Wamp Settings => Check Allow Virtual Hosts other than 127*
I was also facing same issue, It resolved in 2 min for me i just white list ip through cpanel
Suppose you are trying to connect database of server B from server A.
Go to Server B Cpanel->Remote MySQL-> enter Server A IP Address and That's it.
Well what you can do is just open mysql.cfg file and you have to change Bind-address to this
bind-address = 127.0.0.1
and then Restart mysql and you will able to connect that server to this.
Look this you can have idea form that.
this is real sol
This answer might help someone...
All these answers didnt help, then I realised I forgot to check one crucial thing.. The port :)
I have mysql running in a docker container running on a different port. I was pointing to my host machine on port 3306, which I have a mysql server running on. My container exposes the server on port 33060. So all this time, i was looking at the wrong server! doh!
This working for DirectAdmin;
Go to your DirectAdmin.
Go to your MySQL Management.
Select your database.
Under your Accesse Host tab, there is a field.
You should fill this field by xxx.xx.xxx.xx.
Click on Add Host.
Finished. Now you can access to this DB by your your_database_username & your_database_password.
So Simple!
CPANEL solution
Go to Cpanel, look for Remote MySQL.
Add the the IP in the input field:
Host (% wildcard is allowed)
Comment to remember what IP that is.
That was it for me.
1. From a terminal, connect you to your MySQL running container
docker exec -it your_container_name_or_id bash
2. In your container, connect you to the MySQL database
mysql -u your_user -p
enter your password to connect to database.
3. execute this SQL script to list all existing database users:
SELECT host, user FROM mysql.user;
The result will be some thing like below:
host
user
127.0.0.1
root
::1
root
localhost
mysql.sys
localhost
root
you should add a new row:
host
user
%
root
CREATE USER 'username'#'%' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'username'#'%' WITH GRANT OPTION;
Some tips:
list privileges using show grants;
create a VPN and just add the ip of the tunnel
Problem: root#localhost is unable to connect to a fresh installation of mysql-community-server on openSUSE 42.2-1.150.x86_64.
Mysql refuses connections - period.
Solution:
$ ls -l /var/lib/mysql/mysql/user.*
-rw-rw---- 1 mysql mysql 0 Apr 29 19:44 /var/lib/mysql/mysql/user.MYD
-rw-rw---- 1 mysql mysql 1024 Apr 29 19:44 /var/lib/mysql/mysql/user.MYI
-rw-rw---- 1 mysql mysql 10684 Apr 29 19:44 /var/lib/mysql/mysql/user.frm
File user.MYD has 0 size (really ?!).
I copied all 3 files from another working system.
$ /usr/sbin/rcmysql stop
$ cd /var/lib/mysql/mysql/
$ scp root#othersytem:/var/lib/mysql/mysql/user.* ./
$ /usr/sbin/rcmysql start
$ cd -
$ mysql -u root -p
I was able to log in. Then, it was just a matter of re-applying all schema privileges.
Also, if you disabled IPv6, re-enable it temporary so that root#::1 account can also work.
if you are trying to execute mysql query withouth defining connectionstring, you will get this error.
Probably you forgat to define connection string before execution. have you check this out?
(sorry for bad english)
All of the answers here didn't work in my case so I guest this may help other users in the future. This can also be a problem in our code, not just in MySQL alone.
If you are using VB.NET
Instead of this code:
Dim server As String = My.Settings.DB_Server
Dim username As String = My.Settings.DB_Username
Dim password As String = My.Settings.DB_Password
Dim database As String = My.Settings.DB_Database
MysqlConn.ConnectionString = "server=" & server & ";" _
& "user id=" & username & ";" _
& "password=" & password & ";" _
& "database=" & database
MysqlConn = New MySqlConnection()
You need to move MysqlConn = New MySqlConnection() on the first line. So it would be like this
MysqlConn = New MySqlConnection()
Dim server As String = My.Settings.DB_Server
Dim username As String = My.Settings.DB_Username
Dim password As String = My.Settings.DB_Password
Dim database As String = My.Settings.DB_Database
MysqlConn.ConnectionString = "server=" & server & ";" _
& "user id=" & username & ";" _
& "password=" & password & ";" _
& "database=" & database

MySQLdb not working while trying to upload Raspberry Pi weather data to SQL database

I recently have been programming a program that uploads data from my Raspberry Pi weather station, with Python, to a PHPMyAdmin database. My website will then read the data in the database with PHP. I have the PHP section of the code working (will read data from the database), however my issue is my Python part of the program. I am using the MySQLdb plugin for Python. However, when I attempt to connect with the same details as PHP, it does seem to establish as a connection, as there is no error, however the rest of the code does not run.
How would I go about fixing this?
Here is my code:
import MySQLdb
db = MySQLdb.connect(
host = 'server169.web-hosting.com',
user = '***********',
passwd = '**************',
db = '************',
port = 3306 # should be same as in /etc/mysql/my.cnf on server.
)
cursor = db.cursor()
cursor.execute('SELECT VERSION()')
data = cursor.fetchone()
print str(data)
database.close()
host = 'server169.web-hosting.com',
This is a real host I think ? By default, MySQL (the DB you use) is disable on anything other than a localhost incoming connexion : you can't connect to the db from "outside" the server.
You PHP script works because it is run on the server so it can connect locally to the database.
Three ways to solve this :
connecting to you server with a SSH tunnelling raspberrypi:3306 to server169.web-hosting.com
allowing mysql to listen on server169.web-hosting.com:3306 (you'll need root access to do this, +change the firewall rules)
using an interface on the server that'll add the data for you (like a php script you call from you RaspberryPi with an HTTP POST request and a JSON object).
The last one is probably the best way for you, as you don't have to go too deep in configuration / need specials access on the server.

Remote access to mySQL using Python

I have trouble connecting to my mySQL database remotely through Python.
I use the following to connect to mySQL:
import mysql.connector
cnx = mysql.connector.connect(host='XXX.XXX.XXX.X',user='XXXX',password='XXXXXX',database='testdb')
But I get the following error:
2003: Can't connect to MySQL server on '%HOST%:3306' (10060 A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond)
The server is running and when I run the same code on the computer I run the server from using 'localhost'
import mysql.connector
cnx =
mysql.connector.connect(host='localhost',user='XXXX',password='XXXXXX',database='testdb')
it works and I can modify the data in the database. I'm trying to connect it remotely from another computer though.
I've tried using GRANT ALL ON *.* TO User#Host IDENTIFIED BY 'password'; but no result. I checked my firewall and allowed all incoming and outgoing connections through port 3306 which is used by default.
I'm new to mySQL and really have no clue what to do. I don't even know if I use the correct hostname :') I use the IP address of the computer I run the server from,I think that's right.
You dont need to GRANT ALL privilage to the user. You need to tell MYSQL that this user is allowed to login from a remote location.
In fact as you are allowing remote access through this user account now, you should make sure that it can access only the database(s) it needs to, and definitely cannot use GRANT
For example
CREATE USER 'myuser'#'%' IDENTIFIED BY 'mypass';
Will allow this user to connect from any ip address. To be more secure you should try to be more specific and specify a individual ip address if you can
CREATE USER 'myuser'#'11.22.33.44' IDENTIFIED BY 'mypass';
Remember, you are creating a new user account here because you already have a
myuser#localhost
Either way you need to make sure that the password is a strong one, specially is you use the % any ip option

How to connect to a Rabbit-MQ server over the network?

I've got 3 clients on 3 different computers.
Client A is running a RabbitMQ server.
Client B is a producer.
Client C is a consumer.
I've gone through the tutorials on RabbitMQ's site (in Python) and I thought that changing them to work from localhost to over the network would just be to just enter the IP in the line:
connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
Their guide even stated
If we wanted to connect to a broker on a different machine we'd simply specify its name or IP address here.
So what am I doing wrong and how can I get the clients to talk to the server over the network?
Edit: For clarification - I'm running the server using the rabbitmq-server command.
The clients are connected to the broker using the line stated above.
By default it will try and connect using guest as the user id and password, and also by default guest will not work from a remote machine, you need to either create a new user and use those credentials in your connection
e.g.
credentials = pika.PlainCredentials('username', 'password')
parameters = pika.ConnectionParameters('serverip', credentials=credentials)
or modify the guest user to allow it to connect from remote machines. The former is probably the better option, directions for the latter option can be found here.
http://blog.shippable.com/rabbitmq-on-docker-fix
You can do something like that:
credentials = pika.PlainCredentials('username','password')
parameters = pika.URLParameters('amqp://username:password#localhost:5672/%2F')
connection = pika.BlockingConnection(parameters)
If you want to connect to broker on different machine , change the "localhost" above to name or IP address of that machine :
For example on client B :
parameters = pika.URLParameters('amqp://username:password#(ip of client A):5672/%2F')

SSH using Pythondb using private key

I need to SSH into a db using Python, I'm using PythonDB for this. I saw this question which details how to do this but I can't seem to get the syntax right. Would someone be able to point me in the right direction....? I also need to use a private key, how would I go about inserting that...?
ssh -L 9990:127.0.0.0:3396 <79.xxx.xx.xxx>
database = MySQLdb.connect(host'127.0.0.0', port=3306, user='jack', passwd='pass', db='test')
As said in the answer to the other question in the ssh-tunnel you are forwarding from port 9990 on your local machine to the (standard mysql) port on the remove machine. To send requests through that ssh-tunnel you need to connect to port 9990 instead of 3306:
database = MySQLdb.connect(host'127.0.0.0', port=9990, ....

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