As In RHEL or Centos, we can make load port or service permanently by:

firewall-cmd --reload. 

But currently I am working on ubuntu 16.04 but I dont have that much knowledge about this.

So please tell me to add port or service in firewall and make it permanent.

I am using command:

sudo ufw allow https or 443/tcp

Is it the same in RHEL or CENTOS?


Ubuntu 16.04 does not use firewalld by default such as RHEL/Centos which is why firewall-cmd --reload will not work . So you have 3 options:

1) Switch to firewalld by:

sudo systemctl stop iptables sudo systemctl mask iptables sudo apt-get remove ufw apt install firewalld sudo systemctl enable firewalld

2) Use iptables by:

iptables -I INPUT -p tcp --d-port 443 -j ACCEPT

3) Use UFW by:

sudo ufw allow 443

  • Yes. It works.. – savy_ Mar 11 '18 at 14:38

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