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Date: 2016mar23 OS: RedHat/Fedora/CentOS Q. How can I open an arbitrary port using the command line? A. For example to open TCP port 5000firewall-cmd --list-ports Check first firewall-cmd --add-port=5000/tcp --permanent Let it thru firewall-cmd --restart Reboot firewall firewall-cmd --list-ports Check to make sure
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