BYOB: complexity without payoff
Network egress control — compute isolation means nothing if the sandbox can freely phone home. Options range from disabling networking entirely, to running an allowlist proxy (like Squid) that blocks DNS resolution inside the sandbox and forces all traffic through a domain-level allowlist, to dropping CAP_NET_RAW so the sandbox cannot bypass DNS with raw sockets.
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В Финляндии предупредили об опасном шаге ЕС против России09:28
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定存什么：要下标/距离就栈里存索引，只要值就存值或存索引再 nums[i] 取。