https://cn.aliyun.com http://www.vultr.com https://www.amazonaws.cn aliyun: $60/month: adv proj running ok, all chinese vultr: $67.87/month $100us free 1st month: adv i am using it amazon: 12 months free: adv 1 year free under 24 (search campus / then campus.2018) https://developer.aliyun.com/article/722830 2 months free -- https://developer.aliyun.com/adc/student/?spm=a2c6h.13788096.J_7970846300.1.7c9476387VXz7Q&accounttraceid=4b7dd1f400f84ccb90cf2c625751cbd3rxnx#ecscolleges-collocation-stu must FreeBSD