Where are mysql db files kept – MAMP PRO and more

Where are MySQL’s Files Kept?

MySQL stores and accesses files in various places on your hard drive. This page documents the locations of commonly used files, for some often used MySQL installations.

If you want to backup your data or copy data from one server to another, please don’t copy the data files directly. It is recommended to use Sequel Pro’s Export and Import features (use a MySQL dump) to accomplish this.

If you can’t find the files in the locations given here, it could be because you changed the configuration — these are only the default locations. Some of the files only exist while the MySQL server is running (eg. the socket file).

If your installation has no option file (my.cnf), you can create it in the base directory of your installation (see ‘Using Option Files’ section of the MySQL manual for more information).

If you can connect to your MySQL server, you can find many of these paths by selecting Show Server Variables… from the Database Menu in Sequel Pro.

MySQL installed with the official .pkg installer

Socket File
Data Files
Error Log
/usr/local/mysql/data/HOSTNAME.err (insert your hostname)
Base Directory
/usr/local/mysql/ (this is a symbolic link)

MySQL pre-installed on Mac OS X Server

Socket File

MySQL 5 installed with MacPorts

Socket File
Data Files
Error Log
/opt/local/var/db/mysql5/HOSTNAME.err (insert your hostname)

MySQL installed with MAMP

Socket File
Data Files
Base Directory
Error Log

MySQL installed with MAMP PRO

MAMP PRO shares many paths with MAMP, with the following difference:

Data Files
/Library/Application Support/appsolute/MAMP PRO/db/mysql

MySQL installed with XAMPP

Socket File
Data Files
Configuration File


MySQL installed with Zend Server CE

Socket File  

AMPSS MAMPS and OSX stop root password requests


works on Lion and Maverick 

Step 1: View current firewall rules.

sudo ipfw show 

Step 2: Add port forwarding rule (80 to 8080)

sudo ipfw add 100 fwd,8080 tcp from any to any 80 in 

If you want to remove your firewall rules run:

sudo ipfw flush





To Make Changes permanent


put your rules into a file :


add at the very top of your file


Ensure that there are not leading or trailing whitespaces in any line.

add to ~/Library/LaunchAgents/com.yourdomain.ipfw.plist :

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Label</key> <string>com.yourdomain.ipfw</string> <key>Program</key> <string>/sbin/ipfw</string> <key>ProgramArguments</key> <array> <string>/sbin/ipfw</string> <string>-q</string> <string>/etc/ipfw.conf</string> </array> <key>RunAtLoad</key> <true/> </dict> </plist> 

Either reboot, or

launchctl load -w ~/Library/LaunchAgents/com.yourdomain.ipfw.plist 

the first time.

After that it is

launchctl load com.yourdomain.ipfw 




sudo chmod 644 ~/Library/LaunchAgents/com.yourdomain.ipfw.plist 

sudo chown root ~/Library/LaunchAgents/com.yourdomain.ipfw.plist

If any issues occur in console then try this thread 





launchctl: Dubious ownership on file (skipping): /System/Library/LaunchAgents/com.yourdomain.ipfw.plist