duangsuse Puts
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@duangsuse 的强势转载mark

倾向于不适合全部领域人看的内容
可能会有比较底层的知识
基本都是转载mark
@dsuse 技术纯度还高
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热替换rootfs
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成功辣!
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实验成功
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妹妹 你升級GRUB了?
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[YazawaNico] Nadebula 的网络原理掌握的比谭浩强还强
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花掉我一下午时间
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其實NAT穿透技術上不難 就是麻煩
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[Nadebula] 我去,能穿透 ISP 内网的话,这得算是里程碑式的突破了……
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NAT穿透怎麼算里程碑?
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你幾層內網都可以吧
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[Nadebula] 具有划时代的意义。
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[Nadebula] 我好像想明白了一个问题:为何我在实验室内网架的服务器,出了教学楼就不能访问……
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[YazawaNico] Nadebula: 看这个杂志对谭浩强的评价……https://wx3.sinaimg.cn/mw690/61e3c260gy1flfe1x1c3jj20u01hctiq.jpg 先找个地方吐一会儿……
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[Nadebula] 我好像用必应搜“C程序设计”一下子就能搜到这篇文章……
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[YazawaNico] 第一如果有删不掉的文件,用 chattr 解除保护然后删除干净,否则可能有莫名其妙的冲突问题
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[YazawaNico] 第二不要在 grsec 内核进行热替换操作
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[YazawaNico] 因为 grsec 有 chroot 防护措施……
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[YazawaNico] 上次我拷贝完文件系统,然后满屏幕都是无法设置 CAP_SYS_ADMIN 权限,我才意识到发生了什么
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[YazawaNico] 当时我只剩下一个 chroot 终端了
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[YazawaNico] 没办法解除防护
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[YazawaNico] 然后忽然意识到既然文件系统已经拷贝完了,只是有权限问题,为何不退 chroot 用一下刚刚拷贝好的 /sbin/chroot