Tutorial/method for opening all ports on Oracle VPS (oracle cloud server)

Enter your own instance, set up the subnet, open the ports you need, or open all ports (inbound rules, outbound rules), and then delete some of the firewall rules that come with the system:

The newly created Oracle Cloud account has all inbound connections closed, and you need to add rules to the firewall to allow inbound

Click on the name of the previous instance to come to this interface, click on Subnet

Inbound Rules – Source CIDR 0.0.0.0/0 – All Protocols:

Added successfully, after opening inbound, you can run the program on the instance

Under Ubuntu system:

Open all ports iptables -P INPUT ACCEPT iptables -P FORWARD ACCEPT iptables -P OUTPUT ACCEPT iptables -F The Ubuntu image has Iptable rules set by default, turn it off apt-get purge netfilter-persistent reboot Or force deletion rm -rf /etc/iptables && reboot

Under Centos system:

Delete redundant attachments systemctl stop oracle-cloud-agent systemctl disable oracle-cloud-agent systemctl stop oracle-cloud-agent-updater systemctl disable oracle-cloud-agent-updater stop firewall systemctl stop firewalld.service Disable firewall from starting at boot systemctl disable firewalld.service

There is a simpler way: https:// /64318.html

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