다음으로 이어서 보기 좋은 문제 Linux Advanced An Ubuntu cloud instance keeps restoring an old route Manual route fixes work until the next boot when cloud-init regenerates the older topology over the newer NetworkManager changes. Linux Advanced An nftables ruleset loads and one subnet stays open The config is valid, but the include order empties the set after rule compilation. Linux Advanced An nftables migration preserves rules and still opens one path The nftables rules are correct, but a legacy restore service runs later and reinstates a permissive chain. Linux Intermediate An Ubuntu cloud image keeps restoring the wrong route Manual route fixes work briefly, yet the next boot reapplies the older topology because cloud-init remains the winning config owner.
Linux Advanced An Ubuntu cloud instance keeps restoring an old route Manual route fixes work until the next boot when cloud-init regenerates the older topology over the newer NetworkManager changes.
Linux Advanced An nftables ruleset loads and one subnet stays open The config is valid, but the include order empties the set after rule compilation.
Linux Advanced An nftables migration preserves rules and still opens one path The nftables rules are correct, but a legacy restore service runs later and reinstates a permissive chain.
Linux Intermediate An Ubuntu cloud image keeps restoring the wrong route Manual route fixes work briefly, yet the next boot reapplies the older topology because cloud-init remains the winning config owner.