Sysadmin how to run a cron job properly?

It's working now. thank you very much

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If you're experiencing any problem with cron job, you can try free online cron job provider.

 

when revisiting this thread three years later

I can see no point to open ports on google firewall apart from FTP/SMTP if u need, varnish, Memcached are done internally inside the VPS with no outside communication needed

@eva Am I correct? or I'm missing something