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Ok. Thanks @dang007. Seems like @khoa is operating smoothly. So how do you start with a bot. Is it something you buy or do you have to program it?

https://steemit.com/tutorial/@orionsbelt/tutorial-how-to-run-dr-otto-bot-used-by-booster-bellyrub-discordia

you can read here, i set up my server from google cloud they give u free 1 year try out before you pay. Read that if u have any question let me know in steem.chat

Thanks! I am going to check it out now:)