enable ssh on mac os x

SSH access by users is controlled by the local copy of Directory Services. (Controlled using dscl)

First off run dscl . list /Groups | grep 'access_ssh'. If the returned value says com.apple.access_ssh-disabled then all users have SSH access. If not, then we need to give the user access.

To add the user you need to run:

sudo dscl . append /Groups/com.apple.access_ssh user USERNAME

(replace USERNAME with the short username of the user) as well as:

sudo dscl . append /Groups/com.apple.access_ssh groupmembers `dscl . read /Users/USERNAME GeneratedUID | cut -d " " -f 2`

(replace USERNAME with short username as well)

taken from:

http://superuser.com/questions/166179/how-to-enable-remote-access-for-another-account-on-mac-remotely-via-ssh

macport startup install

###########################################################
# A startup item has been generated that will aid in
# starting logwatch with launchd. It is disabled
# by default. Execute the following command to start it,
# and to cause it to launch at startup:
#
# sudo launchctl load -w /Library/LaunchDaemons/org.macports.logwatch.plist
###########################################################

Removing MySQL from OSX Lion

Removing MySQL from OSX Lion

Recently I've had to remove a version of MySQL 5.5 from my Macbook so that I could go back to a 5.1 version. However it appears that there isn't an automatic way to remove and install an older version. A few google searches revealed a bulk of the removal process, but additional searching revealed a few more steps.

sudo rm /usr/local/mysql
sudo rm -rf /usr/local/mysql*
sudo rm -rf /Library/StartupItems/MySQLCOM
sudo rm -rf /Library/PreferencePanes/My*
rm -rf ~/Library/PreferencePanes/My*
sudo rm -rf /Library/Receipts/mysql*
sudo rm -rf /Library/Receipts/MySQL*
sudo rm -rf /var/db/receipts/com.mysql.*
vim /etc/hostconfig # and remove the line MYSQLCOM=-YES-

9/28/2011 - added comment on last line. Thanks Justin for pointing this out! 

Web references:

• http://stackoverflow.com/questions/1436425/how-do-you-uninstall-mysql-from-mac-os-x
• http://akrabat.com/computing/uninstalling-mysql-on-mac-os-x-leopard/

taken from: http://johnmcostaiii.net/2011/removing-mysql-osx-lion/