MySql Connection String 'localhost' not working
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I have a database application I was designing that I haven't worked on in a while. Recently I started it up to start working on it again and I was getting a connection error when trying to connect to the database. The error message is: "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" and the connection string is "Server=localhost;Database=medicehr_provider;Uid=root;Pwd=********;" However if I replace 'localhost' with '127.0.0.1' then my application can connect to the MySql server. I can't figure out why all of a sudden it needs the actual IP address. I checked the hosts file in C:\Windows\System32\Drivers\etc and it does contain an entry for localhost. Any ideas or suggestions why 'localhost' isn't being recognized and '127.0.0.1' is would be greatly appreciated.
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I have a database application I was designing that I haven't worked on in a while. Recently I started it up to start working on it again and I was getting a connection error when trying to connect to the database. The error message is: "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" and the connection string is "Server=localhost;Database=medicehr_provider;Uid=root;Pwd=********;" However if I replace 'localhost' with '127.0.0.1' then my application can connect to the MySql server. I can't figure out why all of a sudden it needs the actual IP address. I checked the hosts file in C:\Windows\System32\Drivers\etc and it does contain an entry for localhost. Any ideas or suggestions why 'localhost' isn't being recognized and '127.0.0.1' is would be greatly appreciated.
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Eddy Vluggen wrote:
Can you ping localhost?
That isn't really going to tell you anything. If it succeeds it tells you nothing about the database. If it fails, if that is even possible, it just means localhost is redirected. But still says nothing about the database.
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I have a database application I was designing that I haven't worked on in a while. Recently I started it up to start working on it again and I was getting a connection error when trying to connect to the database. The error message is: "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" and the connection string is "Server=localhost;Database=medicehr_provider;Uid=root;Pwd=********;" However if I replace 'localhost' with '127.0.0.1' then my application can connect to the MySql server. I can't figure out why all of a sudden it needs the actual IP address. I checked the hosts file in C:\Windows\System32\Drivers\etc and it does contain an entry for localhost. Any ideas or suggestions why 'localhost' isn't being recognized and '127.0.0.1' is would be greatly appreciated.
DisIsHoody wrote:
Any ideas or suggestions why 'localhost' isn't being recognized
1. You have set something up somewhere that resolves 'localhost' to something besides your local host. 2. The database server has been configured to host itself specifically on your IP and is not hosted on 'all' IPs on the box. You can determine the first by using nslookup or whatever the equivalent is for your OS.
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Eddy Vluggen wrote:
Can you ping localhost?
That isn't really going to tell you anything. If it succeeds it tells you nothing about the database. If it fails, if that is even possible, it just means localhost is redirected. But still says nothing about the database.
jschell wrote:
That isn't really going to tell you anything.
It's going to tell me whether the DNS and the host-file know what IP I'm talking about.
jschell wrote:
But still says nothing about the database.
I'm interested in reaching the PC before I reach for a specific database on that PC.
Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^]
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jschell wrote:
That isn't really going to tell you anything.
It's going to tell me whether the DNS and the host-file know what IP I'm talking about.
jschell wrote:
But still says nothing about the database.
I'm interested in reaching the PC before I reach for a specific database on that PC.
Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^]
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I have a database application I was designing that I haven't worked on in a while. Recently I started it up to start working on it again and I was getting a connection error when trying to connect to the database. The error message is: "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" and the connection string is "Server=localhost;Database=medicehr_provider;Uid=root;Pwd=********;" However if I replace 'localhost' with '127.0.0.1' then my application can connect to the MySql server. I can't figure out why all of a sudden it needs the actual IP address. I checked the hosts file in C:\Windows\System32\Drivers\etc and it does contain an entry for localhost. Any ideas or suggestions why 'localhost' isn't being recognized and '127.0.0.1' is would be greatly appreciated.
Add 127.0.0.1 localhost in your C:\Windows\System32\drivers\etc\hosts file
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I have a database application I was designing that I haven't worked on in a while. Recently I started it up to start working on it again and I was getting a connection error when trying to connect to the database. The error message is: "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" and the connection string is "Server=localhost;Database=medicehr_provider;Uid=root;Pwd=********;" However if I replace 'localhost' with '127.0.0.1' then my application can connect to the MySql server. I can't figure out why all of a sudden it needs the actual IP address. I checked the hosts file in C:\Windows\System32\Drivers\etc and it does contain an entry for localhost. Any ideas or suggestions why 'localhost' isn't being recognized and '127.0.0.1' is would be greatly appreciated.
@Eddy: From the command prompt I typed "ping localhost" and the response was "Reply from ::1: time=1ms" so it is recognizing localhost, although I expected it to say "127.0.0.1" instead of "::1: which if I'm not mistaken is IPv6. Could this be the source of the issue? @jschell: In response to item 2, how can I check this? I'm using MySQL Community Edition and I do all my set up/maintenance through MySQL WorkBench. Can you provide some guidance on this? @SarveshShukla: In my original post I mentioned I already checked this and there was already an entry for 127.0.01 to localhost. Thank you so far for all the help and suggestions. It is greatly appreciated. P.S. I forgot to mention that although I'm using MySQL Workbench and all my database design was originally pure MySQL I did change it to MariaDB and also use HeidiSQL for when I design my tables and whatnot. I checked and MySQL Workbench still connects to the tables and I can modify/create/update table schemas and data in either HeidiSQL or MySQL Workbench and the other program will see the appropriate changes. But as far as the actually database server settings I still use MySQL Workbench.
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@Eddy: From the command prompt I typed "ping localhost" and the response was "Reply from ::1: time=1ms" so it is recognizing localhost, although I expected it to say "127.0.0.1" instead of "::1: which if I'm not mistaken is IPv6. Could this be the source of the issue? @jschell: In response to item 2, how can I check this? I'm using MySQL Community Edition and I do all my set up/maintenance through MySQL WorkBench. Can you provide some guidance on this? @SarveshShukla: In my original post I mentioned I already checked this and there was already an entry for 127.0.01 to localhost. Thank you so far for all the help and suggestions. It is greatly appreciated. P.S. I forgot to mention that although I'm using MySQL Workbench and all my database design was originally pure MySQL I did change it to MariaDB and also use HeidiSQL for when I design my tables and whatnot. I checked and MySQL Workbench still connects to the tables and I can modify/create/update table schemas and data in either HeidiSQL or MySQL Workbench and the other program will see the appropriate changes. But as far as the actually database server settings I still use MySQL Workbench.
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@Eddy: From the command prompt I typed "ping localhost" and the response was "Reply from ::1: time=1ms" so it is recognizing localhost, although I expected it to say "127.0.0.1" instead of "::1: which if I'm not mistaken is IPv6. Could this be the source of the issue? @jschell: In response to item 2, how can I check this? I'm using MySQL Community Edition and I do all my set up/maintenance through MySQL WorkBench. Can you provide some guidance on this? @SarveshShukla: In my original post I mentioned I already checked this and there was already an entry for 127.0.01 to localhost. Thank you so far for all the help and suggestions. It is greatly appreciated. P.S. I forgot to mention that although I'm using MySQL Workbench and all my database design was originally pure MySQL I did change it to MariaDB and also use HeidiSQL for when I design my tables and whatnot. I checked and MySQL Workbench still connects to the tables and I can modify/create/update table schemas and data in either HeidiSQL or MySQL Workbench and the other program will see the appropriate changes. But as far as the actually database server settings I still use MySQL Workbench.
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Eddy Vluggen wrote:
It's going to tell me whether the DNS and the host-file know what IP I'm talking about.
You do know that the OP is asking about "localhost" correct?
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@Eddy: From the command prompt I typed "ping localhost" and the response was "Reply from ::1: time=1ms" so it is recognizing localhost, although I expected it to say "127.0.0.1" instead of "::1: which if I'm not mistaken is IPv6. Could this be the source of the issue? @jschell: In response to item 2, how can I check this? I'm using MySQL Community Edition and I do all my set up/maintenance through MySQL WorkBench. Can you provide some guidance on this? @SarveshShukla: In my original post I mentioned I already checked this and there was already an entry for 127.0.01 to localhost. Thank you so far for all the help and suggestions. It is greatly appreciated. P.S. I forgot to mention that although I'm using MySQL Workbench and all my database design was originally pure MySQL I did change it to MariaDB and also use HeidiSQL for when I design my tables and whatnot. I checked and MySQL Workbench still connects to the tables and I can modify/create/update table schemas and data in either HeidiSQL or MySQL Workbench and the other program will see the appropriate changes. But as far as the actually database server settings I still use MySQL Workbench.
DisIsHoody wrote:
@jschell: In response to item 2, how can I check this?
Myself I use telnet (client). If you do not have this installed already then it already in the OS (windows) just go the "control panel" -> "Programs and Features" -> "Turn Windows features on or off" and then look for "Telnet Client". You run telnet with the following command in a console window.
telnet
All you care about is whether it connects or not. If it connects you get a blank screen. If it fails, which can take some time (or not) you get an error. You can find the regular ip of your computer by running the following command (windows) in a console window.
ipconfig
Both of the databases you cited use port 3306 by default. So using the above the following three commands should tell you what is going on.
telnet local host 3306
telnet 127.0.0.1 host 3306
telnet host 3306If all three fail then it means you are using a different port. If just the localhost one fails then it means you have redirected local host. If just the first two fail then it means that you have set your database up to bind to your regular ip and not 127.0.0.1. The above of course makes the assumption that your really are running the database on your local box (and that your test with the GUI tool was valid and was actually connecting to the database on your box and not some database on another box.)