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Hi CrimsonPh33r,
it depends wich service you want provide to the outside, you can follow those examples for kinfd of isp like services:
my internal ip is 10.0.0.1 and outside ip is dynamic in my case so I allow port forwarding from any ip (0.0.0.0), as you have an fix ip you can set it instead of 0.0.0.0
#web services
10.0.0.1:80 0.0.0.0:80 http
10.0.0.1:443 0.0.0.0:443 https
# admin cli
10.0.0.1:22 0.0.0.0:22 ssh
#data
10.0.0.1:20 0.0.0.0:20 ftp
10.0.0.1:21 0.0.0.0:21 ftp-data
#mail
10.0.0.1:465 0.0.0.0:465 ssl-smtp (ssmtp)
10.0.0.1:993 0.0.0.0:993 ssl-imap (imaps)
10.0.0.1:995 0.0.0.0:995 ssl-pop3 (pop3s)
10.0.0.1:25 0.0.0.0:25 smtp
10.0.0.1:143 0.0.0.0:143 imap
10.0.0.1:110 0.0.0.0:110 pop
...
try to forget ftp and ftp-data and use scp or sftp over ssh (port 22) wich is secure. As well as ssmtp, imaps & pops wich could be use instead of smtp, imap & pop
regards,
Jerome