NamespaceWhat it isolatesWhat the process seesPIDProcess IDsOwn process tree, starts at PID 1MountFilesystem mount pointsOwn mount table, can have different rootNetworkNetwork interfaces, routingOwn interfaces, IP addresses, portsUserUID/GID mappingCan be root inside, nobody outsideUTSHostnameOwn hostnameIPCSysV IPC, POSIX message queuesOwn shared memory, semaphoresCgroupCgroup root directoryOwn cgroup hierarchyTimeSystem clocks (monotonic, boot)Own system uptime and clock offsetsNamespaces are what Docker containers use. When you run a container, it gets its own PID namespace (cannot see host processes), its own mount namespace (own filesystem view), its own network namespace (own interfaces), and so on.
Jake KwonSeoul correspondent, Seoul
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在蓝箭航天，我国自主研制的朱雀三号重复使用液氧甲烷运载火箭，正为二季度的回收复用试验做着最后的准备。“尽管去年底的首飞未能实现软着陆，略有遗憾，但我们获取了真实飞行场景下的上千项关键数据，为后续研发积累了宝贵经验，迈出了关键一步。”蓝箭航天创始人张昌武说。
7月6日，南京警方以传播淫秽物品罪，逮捕嫌疑人焦某某（化名“阿红”，男，38岁）。焦某某长期男扮女装利用网络聊天工具诱骗多名男性发生性关系，并偷拍自己与这些男性的性爱影片贩售牟利。据媒体报导，焦某某的外貌平庸，身材也无突出之处，却能吸引不同男性上门，来访者中不乏年轻白领、健身教练、外卖小哥、大学生等各式各样人物，以及外国人也是来访者之列。阿红被网民称为“红姐”、“红老头”、“红大爷”、“小红叔”，由于情节太过猎奇，成为全网的火爆话题。
The appeal was launched by families and leaders of four independent Christian faith schools, aiming to overturn a high court ruling last year by arguing that the decision to add 20% to fees would make small faith schools “unviable” and unaffordable, depriving children of their rights to an equivalent education.