The easiest way to install memcached is to use homebrew package installer:   $ brew install memcached   This locates memcached in /usr/local/opt/memcached/bin/   Starting memcached (by default at port 11211 or with -p port_number):   $ memcached -p 9000   To have launchd start memcached now and restart at login:   $ brew services start memcached   To change the default ram size (64mb) used by memcached use -m option:  $ memcached -m 128  -p 9000   Lastly, run memcached as a daemon with -d:   $ memcached -d -p 9000