As a follow up on this topic, check out this great thread on the Reddit (/r/sysadmin) with additional suggestions on monitoring time drift, https://www.reddit.com/r/sysadmin/comments/64q11x/monitoring_for_time_drift_on_hosts/.
Willy Surya Hidayat thanks for reaching out. Make sure you are running the iptables commands as the root user, or using sudo. If you have more questions or run into any other issues, I recommend submitting a ticket here https://github.com/foospidy/HoneyPy/issues
Thanks abatchy! You are right that base64_decode() does require a string. However you can pass a base64 string literal to the function without it being enclosed in quotes. For example: base64_decode(aGVsbG8=)
I assumed it would require quotes, like base64_decode(“aGVsbG8=”)