Cannot connect to MySQL from Local host using Perl script
I have a perl script on a webserver that connects to a database on a remote server using this code:
my $dbusername='myname';
my $dbpassword='mypassword';
my $dbdatabasename='mydatabase';
my $driver = "mysql";
my $host='x.x.x.x'; # the actual ip of the mysql server
my $port='1010'; # the port it listens on
my $dsn = "DBI:$driver:database=$dbdatabasename;host=$host;port=$port";
$dbh = DBI->connect($dsn,$dbusername,$dbpassword, {
PrintError => 0, RaiseError => 1, });
This all works fine. Now I want to move the Perl script to the same machine as the database. So I replaced the $host ip above with
my $host='localhost';
I also created a new user (called "webuser") on the database that matches hosts "localhost" instead of "%" and I use the user name and password for that connection in my new script. (I can connect to the database using that user from MySQL Workbench).
But when I run the scrpt I always get
"Access denied for user 'webuser'@'localhost' "
What else do I need to do?
It does look like a permissions issue (thanks ikegami), it's the same error I would expect if the password was incorrect. But I have carefully checked it, and I can successfully connect from the command line using exactly the same parameters:
mysql -u webuser -pMyPassword -h localhost -P 1010 MyDBname
Could there be a subtle difference between the mysql.exe program and the mysql driver used by the DBI module?
later:
One difference I have found is that when I connect from the command line I have to specify the port number that the server is listening on. If I don't then I get the error "Can't connect to MySQL Server on 'localhost'".
But in the Perl program whatever I use for the port number,or if I don't specify a port at all, I get "Access denied for user 'webuser'@'localhost' ".
In fact I get the same if I specify a non-existent database name.
I wonder if the sql server is denying access because the request is coming from a program in the webserver area (public_html). Is that a possibility?
mysql perl dbi
asked Nov 12 '18 at 16:45
kaj66
315
add a comment |
I have a perl script on a webserver that connects to a database on a remote server using this code:
my $dbusername='myname';
my $dbpassword='mypassword';
my $dbdatabasename='mydatabase';
my $driver = "mysql";
my $host='x.x.x.x'; # the actual ip of the mysql server
my $port='1010'; # the port it listens on
my $dsn = "DBI:$driver:database=$dbdatabasename;host=$host;port=$port";
$dbh = DBI->connect($dsn,$dbusername,$dbpassword, {
PrintError => 0, RaiseError => 1, });
This all works fine. Now I want to move the Perl script to the same machine as the database. So I replaced the $host ip above with
my $host='localhost';
I also created a new user (called "webuser") on the database that matches hosts "localhost" instead of "%" and I use the user name and password for that connection in my new script. (I can connect to the database using that user from MySQL Workbench).
But when I run the scrpt I always get
"Access denied for user 'webuser'@'localhost' "
What else do I need to do?
It does look like a permissions issue (thanks ikegami), it's the same error I would expect if the password was incorrect. But I have carefully checked it, and I can successfully connect from the command line using exactly the same parameters:
mysql -u webuser -pMyPassword -h localhost -P 1010 MyDBname
Could there be a subtle difference between the mysql.exe program and the mysql driver used by the DBI module?
later:
One difference I have found is that when I connect from the command line I have to specify the port number that the server is listening on. If I don't then I get the error "Can't connect to MySQL Server on 'localhost'".
But in the Perl program whatever I use for the port number,or if I don't specify a port at all, I get "Access denied for user 'webuser'@'localhost' ".
In fact I get the same if I specify a non-existent database name.
I wonder if the sql server is denying access because the request is coming from a program in the webserver area (public_html). Is that a possibility?
mysql perl dbi
asked Nov 12 '18 at 16:45
kaj66
315
2
localhostuses Unix Socket on Linux and shared memory on MSWin. If you want to use TCP/IP, use127.0.0.1.
– choroba
Nov 12 '18 at 17:01
Substituting "127.0.0.1" for "localhost" still gives the error: "Access denied for user 'webuser'@'localhost' "
– kaj66
Nov 12 '18 at 17:30
1
Sounds like it did connect, but it's a permission issue.
– ikegami
Nov 12 '18 at 19:57
Does it work if you leave the script unchanged and use the actual IP address of the server?
– Chris Turner
Nov 13 '18 at 10:15
Chris Turner - I get a different error: Can't connect to MySQL server on 'myipaddress' (111)
– kaj66
Nov 13 '18 at 10:27
add a comment |
I have a perl script on a webserver that connects to a database on a remote server using this code:
my $dbusername='myname';
my $dbpassword='mypassword';
my $dbdatabasename='mydatabase';
my $driver = "mysql";
my $host='x.x.x.x'; # the actual ip of the mysql server
my $port='1010'; # the port it listens on
my $dsn = "DBI:$driver:database=$dbdatabasename;host=$host;port=$port";
$dbh = DBI->connect($dsn,$dbusername,$dbpassword, {
PrintError => 0, RaiseError => 1, });
This all works fine. Now I want to move the Perl script to the same machine as the database. So I replaced the $host ip above with
my $host='localhost';
I also created a new user (called "webuser") on the database that matches hosts "localhost" instead of "%" and I use the user name and password for that connection in my new script. (I can connect to the database using that user from MySQL Workbench).
But when I run the scrpt I always get
"Access denied for user 'webuser'@'localhost' "
What else do I need to do?
It does look like a permissions issue (thanks ikegami), it's the same error I would expect if the password was incorrect. But I have carefully checked it, and I can successfully connect from the command line using exactly the same parameters:
mysql -u webuser -pMyPassword -h localhost -P 1010 MyDBname
Could there be a subtle difference between the mysql.exe program and the mysql driver used by the DBI module?
later:
One difference I have found is that when I connect from the command line I have to specify the port number that the server is listening on. If I don't then I get the error "Can't connect to MySQL Server on 'localhost'".
But in the Perl program whatever I use for the port number,or if I don't specify a port at all, I get "Access denied for user 'webuser'@'localhost' ".
In fact I get the same if I specify a non-existent database name.
I wonder if the sql server is denying access because the request is coming from a program in the webserver area (public_html). Is that a possibility?
mysql perl dbi
asked Nov 12 '18 at 16:45
kaj66
315
I have a perl script on a webserver that connects to a database on a remote server using this code:
my $dbusername='myname';
my $dbpassword='mypassword';
my $dbdatabasename='mydatabase';
my $driver = "mysql";
my $host='x.x.x.x'; # the actual ip of the mysql server
my $port='1010'; # the port it listens on
my $dsn = "DBI:$driver:database=$dbdatabasename;host=$host;port=$port";
$dbh = DBI->connect($dsn,$dbusername,$dbpassword, {
PrintError => 0, RaiseError => 1, });
This all works fine. Now I want to move the Perl script to the same machine as the database. So I replaced the $host ip above with
my $host='localhost';
I also created a new user (called "webuser") on the database that matches hosts "localhost" instead of "%" and I use the user name and password for that connection in my new script. (I can connect to the database using that user from MySQL Workbench).
But when I run the scrpt I always get
"Access denied for user 'webuser'@'localhost' "
What else do I need to do?
It does look like a permissions issue (thanks ikegami), it's the same error I would expect if the password was incorrect. But I have carefully checked it, and I can successfully connect from the command line using exactly the same parameters:
mysql -u webuser -pMyPassword -h localhost -P 1010 MyDBname
Could there be a subtle difference between the mysql.exe program and the mysql driver used by the DBI module?
later:
One difference I have found is that when I connect from the command line I have to specify the port number that the server is listening on. If I don't then I get the error "Can't connect to MySQL Server on 'localhost'".
But in the Perl program whatever I use for the port number,or if I don't specify a port at all, I get "Access denied for user 'webuser'@'localhost' ".
In fact I get the same if I specify a non-existent database name.
I wonder if the sql server is denying access because the request is coming from a program in the webserver area (public_html). Is that a possibility?
mysql perl dbi
mysql perl dbi
asked Nov 12 '18 at 16:45
kaj66
315
asked Nov 12 '18 at 16:45
kaj66
315
edited Nov 13 '18 at 13:23
asked Nov 12 '18 at 16:45
kaj66
315
asked Nov 12 '18 at 16:45
kaj66
315
asked Nov 12 '18 at 16:45
kaj66
315
315
2
localhostuses Unix Socket on Linux and shared memory on MSWin. If you want to use TCP/IP, use127.0.0.1.
– choroba
Nov 12 '18 at 17:01
Substituting "127.0.0.1" for "localhost" still gives the error: "Access denied for user 'webuser'@'localhost' "
– kaj66
Nov 12 '18 at 17:30
1
Sounds like it did connect, but it's a permission issue.
– ikegami
Nov 12 '18 at 19:57
Does it work if you leave the script unchanged and use the actual IP address of the server?
– Chris Turner
Nov 13 '18 at 10:15
Chris Turner - I get a different error: Can't connect to MySQL server on 'myipaddress' (111)
– kaj66
Nov 13 '18 at 10:27
add a comment |
2
localhostuses Unix Socket on Linux and shared memory on MSWin. If you want to use TCP/IP, use127.0.0.1.
– choroba
Nov 12 '18 at 17:01
Substituting "127.0.0.1" for "localhost" still gives the error: "Access denied for user 'webuser'@'localhost' "
– kaj66
Nov 12 '18 at 17:30
1
Sounds like it did connect, but it's a permission issue.
– ikegami
Nov 12 '18 at 19:57
Does it work if you leave the script unchanged and use the actual IP address of the server?
– Chris Turner
Nov 13 '18 at 10:15
Chris Turner - I get a different error: Can't connect to MySQL server on 'myipaddress' (111)
– kaj66
Nov 13 '18 at 10:27
2
2
localhost uses Unix Socket on Linux and shared memory on MSWin. If you want to use TCP/IP, use 127.0.0.1.– choroba
Nov 12 '18 at 17:01
localhost uses Unix Socket on Linux and shared memory on MSWin. If you want to use TCP/IP, use 127.0.0.1.– choroba
Nov 12 '18 at 17:01
Substituting "127.0.0.1" for "localhost" still gives the error: "Access denied for user 'webuser'@'localhost' "
– kaj66
Nov 12 '18 at 17:30
Substituting "127.0.0.1" for "localhost" still gives the error: "Access denied for user 'webuser'@'localhost' "
– kaj66
Nov 12 '18 at 17:30
1
1
Sounds like it did connect, but it's a permission issue.
– ikegami
Nov 12 '18 at 19:57
Sounds like it did connect, but it's a permission issue.
– ikegami
Nov 12 '18 at 19:57
Does it work if you leave the script unchanged and use the actual IP address of the server?
– Chris Turner
Nov 13 '18 at 10:15
Does it work if you leave the script unchanged and use the actual IP address of the server?
– Chris Turner
Nov 13 '18 at 10:15
Chris Turner - I get a different error: Can't connect to MySQL server on 'myipaddress' (111)
– kaj66
Nov 13 '18 at 10:27
Chris Turner - I get a different error: Can't connect to MySQL server on 'myipaddress' (111)
– kaj66
Nov 13 '18 at 10:27
add a comment |
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2
localhostuses Unix Socket on Linux and shared memory on MSWin. If you want to use TCP/IP, use127.0.0.1.– choroba
Nov 12 '18 at 17:01
Substituting "127.0.0.1" for "localhost" still gives the error: "Access denied for user 'webuser'@'localhost' "
– kaj66
Nov 12 '18 at 17:30
1
Sounds like it did connect, but it's a permission issue.
– ikegami
Nov 12 '18 at 19:57
Does it work if you leave the script unchanged and use the actual IP address of the server?
– Chris Turner
Nov 13 '18 at 10:15
Chris Turner - I get a different error: Can't connect to MySQL server on 'myipaddress' (111)
– kaj66
Nov 13 '18 at 10:27