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kindejak/clean-oracle-cloud-firewalls.sh

Created November 16, 2023 18:41
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clean-oracle-cloud-firewalls.sh
#!/bin/bash
## save existing rules
sudo iptables-save > ~/iptables-rules
## modify rules, remove drop and reject lines
grep -v "DROP" iptables-rules > tmpfile && mv tmpfile iptables-rules-mod
grep -v "REJECT" iptables-rules-mod > tmpfile && mv tmpfile iptables-rules-mod
## apply the modifications
sudo iptables-restore < ~/iptables-rules-mod
## check
sudo iptables -L
## save the changes
sudo netfilter-persistent save
sudo systemctl restart iptables
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