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gigabyteservice/open port with iptables.txt

Created June 19, 2022 17:32
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open port with iptables
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open port with iptables.txt
# take the backup
iptables-save > iptables-backup.text
# open UDP port
iptables -I INPUT -p udp --dport 5443 -j ACCEPT
# save changes
iptables-save
# check the changes
sudo iptables -L -v -n | more
# if want open all udp ports
iptables -I INPUT -p udp -j ACCEPT
# then save
iptables-save
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