On server 1 (lets call it 1.1.1.1 , I have Wordpress installed, which has its own MySQL database.
On server 2 (lets call it 2.2.2.2) , I have only MySQL on Ubuntu, with PhpMyAdmin installed.
I am attempting to connect FROM Wordpress (functions.php) FROM server 1, to server 2's MySQL database through the following:
$mydb = new wpdb('rruser','password','dbname', '2.2.2.2');
Following this connection, everything else is fine.
Upon loading the shortcode through a page, the page does not load the content in the shortcode. I am assuming the connection has timed out.
Please can someone advise how I can go about connecting to an external database?
I have created a new user on "2.2.2.2" and granted priveleges to "dbname".
CREATE USER 'rruser'#'1.1.1.1' IDENTIFIED WITH mysql_native_password AS '***';`
`GRANT USAGE ON *.* TO 'rruser'#'1.1.1.1' REQUIRE NONE WITH MAX_QUERIES_PER_HOUR 0 MAX_CONNECTIONS_PER_HOUR 0 MAX_UPDATES_PER_HOUR 0 MAX_USER_CONNECTIONS 0;`
`GRANT ALL PRIVILEGES ON `rail`.* TO 'rruser'#'1.1.1.1';
My MySQL my.cnf file looks like the following on the remote server which I would like to connect to (2.2.2.2)
#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
#
# * IMPORTANT: Additional settings that can override those from this file!
# The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mysql.conf.d/
[mysqld]
innodb_file_per_table = 1
Many thanks in advance.
I have resolved my problem by adding bind-address to 2.2.2.2's my.cnf file, as well as allowing mysql's ports in UWF, including TCP and 8080.
Upon rebooting my server the problem is resolved
Related
I have MySQL 8.0 running on Windows. I made some changes to my.ini (having eventually found it!) to change the character set. Stupidly I did not back it up first, and I used Notepad, which doesn't have multiple undo.
Now I get
The MySQL Service could not be started
The service did not report an error
There are no errors logged in the MYSQL log either.
I'm sure I've accidentally deleted an important line or something, but can't for the life of me find it. This is the section of my.ini that I changed:
[client]
# pipe=
# socket=MYSQL
port=3306
[mysql]
# SERVER SECTION
# ----------------------------------------------------------------------
#
# The following options will be read by the MySQL Server. Make sure that
# you have installed the server correctly (see above) so it reads this
# file.
#
# server_type=2
[mysqld]
# The next three options are mutually exclusive to SERVER_PORT below.
# skip-networking
# enable-named-pipe
# shared-memory
# shared-memory-base-name=MYSQL
# The Pipe the MySQL Server will use
# socket=MYSQL
# The TCP/IP Port the MySQL Server will listen on
port=3306
# Path to installation directory. All paths are usually resolved relative to this.
# basedir="C:/Program Files/MySQL/MySQL Server 8.0/"
# Path to the database root
datadir=C:/ProgramData/MySQL/MySQL Server 8.0/Data
# The default character set that will be used when a new schema or table is
# created and no character set is defined
character-set-server=utf8
I've tried undoing what I did (though as I say, I may have accidentally changed something else), and using mysqld --initialize before trying to restart. I've checked permissions - all seem to be OK.
I found the answer. The problem wasn't to do with my changes at all, but because I had changed it in Notepad. When I opened the file in Notepad++ to check encoding, I noticed that the encoding was UTF-8-BOM.
I changed it to plain UTF-8 and MySQL now starts. I'm not sure if Notepad changed it, or just didn't encode the UTF-8-BOM correctly, but the main thing is that it starts.
Saving the file to ANSI will fix the issue.
I had a different problem but your solution helped me narrow down my solution.
Saved innodb_buffer_pool_size= 3G instead of innodb_buffer_pool_size=3G
That small spacing caused me a heart attack. After removing the space and saving it as UTF-8 file. It worked for me again
I'm using MySQL server version: 10.1.23-MariaDB-9+deb9u1 Raspbian 9.0 on a Raspberry Pi.
This is my /etc/mysql/my.cnf:
# The MariaDB configuration file
#
# The MariaDB/MySQL tools read configuration files in the following order:
# 1. "/etc/mysql/mariadb.cnf" (this file) to set global defaults,
# 2. "/etc/mysql/conf.d/*.cnf" to set global options.
# 3. "/etc/mysql/mariadb.conf.d/*.cnf" to set MariaDB-only options.
# 4. "~/.my.cnf" to set user-specific options.
#
# If the same option is defined multiple times, the last one will apply.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# This group is read both both by the client and the server
# use it for options that affect everything
#
[client-server]
# Import all .cnf files from configuration directory
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mariadb.conf.d/
#bind-address = 0.0.0.0
I've tried this:
sudo mysql_secure_installation
Change root password: y
Password
Retyped password
Remove anonymous users: y
Disallow root login remotely: n
Remove test database: y
Reload priviledges: y
CREATE USER 'root'#'%.%.%.%' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'root'#'%.%.%.%' WITH GRANT OPTION;
FLUSH PRIVILEDGES;
service mysql restart
In my.cnf, with bind-address commented, I can access from localhost, but not from remote host using SQL Workbench.
With bind-address uncommented, I cannot access from localhost, but I can access from remote host using SQL Workbench, e.g.:
mysql -u root
mysql: unknown variable 'bind-address=0.0.0.0'
This is my users table:
MariaDB [(none)]> select user, host, password from mysql.user;
+------+-----------+-------------------------------------------+
| user | host | password |
+------+-----------+-------------------------------------------+
| root | localhost | *054D119DEAD56E226D8356557796BFA72E71BA40 |
| root | %.%.%.% | *054D119DEAD56E226D8356557796BFA72E71BA40 |
| root | % | *054D119DEAD56E226D8356557796BFA72E71BA40 |
+------+-----------+-------------------------------------------+
How do I configure the server to allow local and remote access for root from any IP?
Add a line over bind-address = 0.0.0.0 with [mysqld] like:
[mysqld]
bind-address = 0.0.0.0
In your case both, the server and the local client, reads the bind address and the client want to connect to the IP 0.0.0.0
According to this link it seems that the mysql client doesn’t recognize the bind address.
In order to connect locally I have to use this line:
mysql --no-defaults -u[username] -p[password] [database]
Just in case - I first put the bind-address between the lines and it did not work after
systemctl restart mysqld
With bind-address at the end it worked:
# The MariaDB configuration file
#
# The MariaDB/MySQL tools read configuration files in the following order:
# 1. "/etc/mysql/mariadb.cnf" (this file) to set global defaults,
# 2. "/etc/mysql/conf.d/*.cnf" to set global options.
# 3. "/etc/mysql/mariadb.conf.d/*.cnf" to set MariaDB-only options.
# 4. "~/.my.cnf" to set user-specific options.
#
# If the same option is defined multiple times, the last one will apply.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# This group is read both both by the client and the server
# use it for options that affect everything
#
[client-server]
# Import all .cnf files from configuration directory
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mariadb.conf.d/
[mysqld]
bind-address = 0.0.0.0
i've looked up every tutorial on how to fix this and nothing worked so far,
I'm getting this error
No connection could be made because the target machine actively refused it
i'm using linux centos7 mysql version
mysql Ver 14.14 Distrib 5.6.32, for Linux (x86_64) using EditLine wrapper
blow is my.cnf
also i had to create my own my.cnf as when i installed mysql it didn't have one located i put this into etc/my.cnf it's running the cnf as it's taken mysql out of strict mode.
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.
[mysqld]
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
# These are commonly set, remove the # and set as required.
# basedir = .....
# datadir = .....
# port = .....
# server_id = .....
# socket = .....
bind-address = 0.0.0.0
#skip-networking
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
sql_mode=NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
Ok, I am assuming that you have installed this on a completely different machine (as opposed to a Virtual Host on your Windows box).
You need to make sure that port 3306 is open on your DB server first and foremost. You can check this with a port checker (there are plenty of free ones online).
Then, with the user you are trying to connect with, you need to make sure that user has access from the origin IP address (i.e. the IP on your Windows machine). This can be done with the following code from the mysql prompt.
GRANT ALL PRIVILEGES ON <your db name>.* TO <your user>#<your ip> IDENTIFIED BY '<your password>';
A less secure option would be to allow all inbound IPs by using the % wildcard.
After this you need to run the following command.
FLUSH PRIVILEGES;
That should be it.
I am attempting to move a mysql db onto an upgraded server with a newer version of ubuntu running (15.04), and after installing LAMP, I went to edit the bind address in the my.cnf file. The below is all I see in /etc/mysql/my.cnf. I added [mysqld] and the bind address = new address but nothing seems to allow my remote client to connect to this db. It is online and the ip address should be correct. What am i missing? Why is this my.cnf so bare?
#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
#
# * IMPORTANT: Additional settings that can override those from this file!
# The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mysql.conf.d/
stupid me, apparently in this version it is the mysqld.cnf under /etc/mysql/mysql.conf.d/. Oh well. Posting this in case anyone else has problems.....
In ubuntu 15.04 the MySQL Server configure file is in:
/etc/mysql/mysql.conf.d/mysqld.cnf
You can find bind-address here.Comment it, and restart your MySQL Server use :
service mysql restart
Then you can access your MysqlServer from other computer. If you don't, perhaps you need grant some right to the user you use.
You can see MySQL Server bind-address use:
netstat -tap | grep mysql
So you know whether the configure take effect.
Depending on your linux distro your my.cnf (as well as the rest of your data directory) may be in /var/lib/mysql folder.
You could also run the find command to look for the file: find -name 'my.cnf'.
I suggest running this command as root, in your root directory.
Once you have located the correct my.cnf file there will be a parameter under [mysqld] section that looks like this:
bind-address = 127.0.0.1
Comment this parameter out with a # and save the edited my.cnf file. Restart the Mysql server and you should be able to connect remotely from any IP as long as the user you are trying to connect with as the correct permissions and host(%).
You can check this by running:
select user, host from mysql,user;
and show grants for 'youruser'#'yourhost';
grants and privileges for Mysql.
I have downloaded MYSQL via:
bash <(curl -Ls http://git.io/eUx7rg)
Prior to installing I've completely uninstalled previous components via:
http://community.jaspersoft.com/wiki/uninstall-mysql-mac-os-x
I've had to modify permissions in order to see the log file and see primarily permissions errors. Also, when I try:
type mysql
The result, in terminal, points to a directory that does not exist on my local system. When I trace the path to the executable (via Finder) I get the following error in Terminal:
/usr/local/mysql-5.6.19-osx10.7-x86_64/bin/mysql ; exit;
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (2)
logout
Also, when I look at my.conf file, everything is asterisked out:
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html
[mysqld]
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
# These are commonly set, remove the # and set as required.
# basedir = .....
# datadir = .....
# port = .....
# server_id = .....
# socket = .....
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
Had the same problem. Had to switch machines for a week and installing MySQL on "OS X 10.9.3 (13D65)" would not work. Had to wipe the account clean and reinitialize the user to get it going. Apparently there was still an old mysql which wasn't uninstalled completely. Google "uninstall mysql manually"
The access denied happens sometime when the grant is given to the interface 127.0.0.1 but not to localhost.
Try granting access to %, 127.0.0.1, and localhost.