git push failed over http

Hi,all
       I setup a git public repo (http) over apache2,however I can't
push to remote public repository

$ git push
error: Cannot access URL http://192.168.1.109/demo.git/, return code 22
error: failed to push some refs to 'http://192.168.1.109/demo.git'

Could anyone give some ideas on this problem?


Thanks very much