I am really a beginner in PHP and Mysql. I made a database on static IP 192.168.1.211 which is based on CentOS(only Command prompt) and on this IP there is no other software like easyPHP, and I am working on static IP 192.168.1.20 based on Windows 7. I also installed easyPHP and Dreamweaver... using Dreamweaver I made one .php file and I tried to use the database which is on 192.168.1.20..
using below code
<?php
$server2 = '192.168.1.211';
$con = mysqli_connect(server2,'root','password','vvani');
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
?>
but I get an error as shown below
Notice: Use of undefined constant server2 - assumed 'server2' in C:\Program Files\EasyPHP-DevServer-13.1VC9\data\localweb\test\welcome.php on line 4
Warning: mysqli_connect(): php_network_getaddresses: getaddrinfo failed: No such host is known. in C:\Program Files\EasyPHP-DevServer-13.1VC9\data\localweb\test\welcome.php on line 4
Warning: mysqli_connect(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: No such host is known. in C:\Program Files\EasyPHP-DevServer-13.1VC9\data\localweb\test\welcome.php on line 4
Failed to connect to MySQL: php_network_getaddresses: getaddrinfo failed: No such host is known.
How can I access the database on 192.168.1.211 from 192.168.1.20 in PHP code?
I also tried hard to find a solution from Google, but I am not getting a perfect solution.
Just read errors and correct it..
<?php
$server2 = '192.168.1.211';
$con = mysqli_connect($server2,'root','password','vvani'); // here, $server2 is variable, not constant
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
Change server2 to $server2. If that still doesn't work then it's possible the other server does not allow requests in such a way so you will have to update the MySQL settings on that server to allow external access to the port (or otherwise forward it).
Thanks Elon Than and Explosion Pills,
I changed server2 to $server2, but I get new warning
Warning: mysqli_connect(): (HY000/1130): Host '192.168.1.20' is not allowed to connect to this MySQL server in C:\Program Files\EasyPHP-DevServer-13.1VC9\data\localweb\test\welcome.php on line 4
And I research on it and I try to give remotely access to database on another server.
Follow some few steps and solved problem.
# mysql -u root -p
mysql> GRANT ALL ON Database.* TO <un>#'localhost' IDENTIFIED BY 'password';
Thanks again.
Related
This question already has answers here:
Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.sock) in
(17 answers)
Closed 2 years ago.
I'm totally stuck having spent a couple of days trying to figure this out...
I have set up an Apache web server (version 2.4.34) on my Mac OS running Mojave (10.14.3) and have installed the current version of MySQL Community Server (8.0.15). Both running perfectly as I can determine (from command line). I have PHP 7.1.23 installed. When I create a .php file with the following code and put it in my Sites directory and then in Safari go to http://localhost/~dave/hello.php I get this error:
"Warning: mysqli::__construct(): (HY000/2002): No such file or
directory in /Users/dave/Sites/hello.php on line 7 Connection failed:
No such file or directory".
Code in hello.php:
<?php
$servername = "localhost";
$username = "dave";
$password = "*****";
//Create connection
$conn = new mysqli($servername, $username, $password);
//Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";
?>
I have tried everything I can think of, including those suggestions in the other two similar posts (this one: My database user exists, but I still get an (HY000/2002): No such file or directory and this one: PHP Warning: mysqli::__construct(): (HY000/2002): No such file or directory (Debian GNU/Linux 9)), and I cannot connect to MySQl with php. In particular, I checked with the php info page and the socket for mysqli is given as var/mysql/mysql.sock. In the relevant table in mysql the value for socket is given as /tmp/mysql.sock. I tried changing the php.ini.default file by adding each of these sockets (in place of the empty value) and neither worked (still generates the same error). I thought that the 2002 MySQL socket error might be the problem, so I made a symlink by doing this:
sudo mkdir /var/mysql
sudo ln -s /tmp/mysql.sock /var/mysql/mysql.sock
but all that did was generate a new error:
Warning: mysqli::__construct(): The server requested authentication
method unknown to the client [caching_sha2_password] in
/Users/dave/Sites/hello.php on line 7
Warning: mysqli::__construct(): (HY000/2054): The server requested
authentication method unknown to the client in
/Users/dave/Sites/hello.php on line 7 Connection failed: The server
requested authentication method unknown to the client
So I removed the symlink...and returned to the original error.
I also tried replacing "localhost" with the IP address 127.0.0.1 as well as "localhost:3306" as other question threads have suggested. Nothing worked here either.
Please help, I am new to this kind of use of the computer/web design and I'm out of obvious (googleable/understandable) options.
Use 127.0.0.1 instead of localhost.
I got some help from some local tech guys in my area and it turns out that fixing the socket error was the first step, like I tried to do above. I eventually did it this way, using the solution by noun:
Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.sock) in
The second error message was then generated (same one as in my question, here again):
mysqli::__construct(): The server requested authentication method unknown to the client [caching_sha2_password] in /Users/dave/Sites/hello.php on line 7
Warning: mysqli::__construct(): (HY000/2054): The server requested authentication method unknown to the client in /Users/dave/Sites/hello.php on line 7
This was fixed by the SQL-based solution (June 9 2018 answer) to this question:
php mysqli_connect: authentication method unknown to the client [caching_sha2_password]
This SQL statement was simply run in MySQL from the terminal. After restarting the Apache server I reloaded the .php file in Safari and this resulted in a successful mysqli connection to MySQL with PHP. I also tried a PDO connection and this also worked.
I am trying to connect my local PHP program from one PC and Mysql from a server or another PC. But I got following error when I tried this
Warning: mysqli_connect(): php_network_getaddresses: getaddrinfo failed: No such host is known. in D:\xampp\htdocs\bharat\bharat\connect.php
Warning: mysqli_connect(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: No such host is known. in D:\xampp\htdocs\bharat\bharat\connect.php
Warning: mysqli_error() expects parameter 1 to be mysqli, string given in D:\xampp\htdocs\bharat\bharat\connect.php
<?php
$con = mysqli_connect('https://192.168.43.215', 'root', '12345678', 'bharat') or die(mysqli_error("Error connection"));
I tried to keep mysql database in remote server for data security and software in local machine. Can any one tell me the exact way. Thank you.
You don't need the https://, this would be sufficient:
<?php
$con = mysqli_connect('192.168.43.215', 'root', '12345678', 'bharat') or die(mysqli_error("Error connection"));
I have a database hosted by one.com with these settings:
PhpMyAdmin: https://dbadmin.one.com
Host: axelerate.be.mysql
Database: axelerate_be
Username: axelerate_be
Password: *****
I want to make connection with this database by using a php file runned by the LXTerminal of the raspberry pi. When i try to make connection i get this error (host unknown):
Warning: mysqli_connect(): php_network_getaddresses: getaddrinfo
failed: Host is onbekend. in C:\xampp\htdocs\twitter\index.php on line
3
Warning: mysqli_connect(): (HY000/2002): php_network_getaddresses:
getaddrinfo failed: Host is onbekend. in
C:\xampp\htdocs\twitter\index.php on line 3 Failed to connect to
MySQL: php_network_getaddresses: getaddrinfo failed: Host is onbekend.
This is my code:
<?php
// Create connection
$con=mysqli_connect("axelerate.be.mysql","axelerate_be","*******","axelerate_be");
// Check connection
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}else{
echo "it works!";
}
?>
My question:
How can i make this connection work without edditing any config files? (so if there is something to do, I want only to write in the php file)
Thanks!
The .mysql based hosts are internal hosts within the one.com network that resolves to the server that hosts your database. These hosts are not meant for connections outside of one.com hosting, and probably doesn't accept connections from the world if they're even available on a public IP.
Make sure the host (axelerate.be.mysql) exists, try to ping it. AS i can see it doesnt exist.
One.com doesn't support mysqli. You have to use
$db=mysql_connect("example.com.mysql", "username", "password");
mysql_select_db("database", $db);
When i try to connect to memcached server from a php page, it works without any problem.
Using this code
$memcache = new Memcache;
$memcache->connect('localhost', 11211) or die ("Could not connect");
But when it tries to connect to server from a php script which is fired by cron job it throws this error
Warning: Memcache::connect(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/...../cron/acts_cron.php on line 3
Warning: Memcache::connect(): Can't connect to localhost:11211, php_network_getaddresses: getaddrinfo failed: Name or service not known (0) in /home/...../cron/acts_cron.php on line 3
Could not connect
What can cause this problem ?
Seems like you're missing an entry for localhost inside your hosts file. Try updating /etc/hosts and make sure that you got a line like the following in there:
127.0.0.1 localhost.localdomain localhost
using 127.0.0.1 instead of localhost fixed the issue.
First, let me note that the connection infomation is not the correct info. I made a database on 1and1 and I want to connect to it from the web. I am not getting the syntax correct here, can someone point me in the right direction?
Here is what I have:
//connect to DB
$dbc=mysql_connect('http://db232154114.db.1and1.com','db232154114','password');
mysql_select_db('tableName',$dbc)
Here are the errors that I am getting:
Warning: mysql_connect() [function.mysql-connect]: php_network_getaddresses:
getaddrinfo failed: No such host is known. in
C:\xampp\htdocs\ciss225Testing\homework\final_process.php on line 35
Warning: mysql_connect() [function.mysql-connect]: [2002] php_network_getaddresses:
getaddrinfo failed: No such host is kn (trying to connect via tcp://http:3306) in
C:\xampp\htdocs\ciss225Testing\homework\final_process.php on line 35
Warning: mysql_connect() [function.mysql-connect]: php_network_getaddresses:
getaddrinfo failed: No such host is known. in
C:\xampp\htdocs\ciss225Testing\homework\final_process.php on line 35
Warning: mysql_select_db() expects parameter 2 to be resource, boolean given in
C:\xampp\htdocs\ciss225Testing\homework\final_process.php on line 37
Try to replace http://db232154114.db.1and1.com/ with IP address of SQL server you're connecting to
Remove http:// and enable remote MySQL connections from your server's cPanel or so
your connection string is not right. get rid of the "http://" stuff; that is not part of the db server's hostname.