how to unblock port 547 on ubuntu droplet
i want to send email from registration form on PHP Codeigniter but its seem like port 547 is blocked
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1 Answer
Hi @amjadgul05,
You’ll need to allow access on the port. If you are using only IPtables, Digital Ocean have a pretty good article about how to do it - ARTICLE
If you have installed csf for instance, you can allow the mentioned port in the configuration file
/etc/csf/csf.conf
and then
TCP_OUT = some port, some port, 547, some port
I hope the above helps,
Kind regards,
Kalin
Iptables is the software firewall that is included with most Linux distributions by default. This cheat sheet-style guide provides a quick reference to iptables commands that will create firewall rules are useful in common, everyday scenarios. This includes iptables examples of allowing and blocking various services by port, network interface, and source IP address.
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Hi @amjadgul05,
In that case I’ll recommend installing csf and enabling the port from there. I can provide you with the needed steps to install it but first let me know your distribution, is it CentOS, Ubuntu or something else?
Regards,
Kalin-
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Hi @amjadgul05,
That’s perfect. Digital Ocean even have an article how to configure CSF on an Ubuntu droplet. You can check it out here - Configure CSF on Ubuntu server
It even mentions how to actually open/close a port of your liking.
Let me know if you are still experiencing troubles
Regards,
KalinConfig Server Firewall (CSF) is a free and advanced firewall for most Linux distributions and Linux based VPS. Learn how to install and configure on Ubuntu.
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