curl -O https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.4.11.tgz?_ga=1.33040702.1440244624.1410347116
或者
wget --no-check-certificate https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.4.11.tgz?_ga=1.33040702.1440244624.1410347116
wget不行的话就实用curl命令