操作系统其实很大一部分面向 CPU 来编程的。一些 OS 的概念直接来源于 CPU 的术语，或者和 CPU 关联性非常大。要想彻底理解 OS ，无法绕过 CPU。因为 Intel 的 X86(Intel 80386 之后

弄清楚 I/O Multiplexing 和 Linux 中 select, poll, epoll 之间的关系. multiplexer Multiplexer is a combinational circuit that has maximum of 2^n data inputs, n selection lines and single output line. One of these data inputs will be connected to the output based on the values of selection lines. Since there are n selection lines, there will be 2^n possible combinations of zeros and

Wireshark Windows 配置 SSL Version 3.0.3 配置 SSLKEYLOGFILE 系统变量 配置 Wireshark 编辑 -> 首选项 -> Protocols -> TLS 重启 Wireshark 过滤器查看 视图 -> 内部 -> 支持的协议

Centos7 Linux 运行的 Docker 容器是: mssql-node-docker-demo-app docker info #(docker-info) docker inspect [ { "Id": "405a378d6f88f903dda5972dbfb8f037efff22296c3aaf4c50d44ebd68ad8655", "Created": "2019-08-01T02:57:14.067532309Z", "Path": "/bin/sh", "Args": [ "-c", "/bin/bash ./entrypoint.sh" ], "State": { "Status": "running", "Running": true, "Paused": false, "Restarting": false, "OOMKilled": false, "Dead": false, "Pid": 12164, "ExitCode": 0, "Error": "", "StartedAt": "2019-08-22T06:08:43.334320939Z", "FinishedAt": "2019-08-21T09:25:32.130119566Z" }, "Image": "sha256:e600f86aa4e2aced43a193a28aa507651bfb77daa09ca8dbf286451a630cf27e", // node-web-app 的 docker 镜像 id "ResolvConfPath": "/var/lib/docker/containers/405a378d6f88f903dda5972dbfb8f037efff22296c3aaf4c50d44ebd68ad8655/resolv.conf", "HostnamePath": "/var/lib/docker/containers/405a378d6f88f903dda5972dbfb8f037efff22296c3aaf4c50d44ebd68ad8655/hostname", "HostsPath": "/var/lib/docker/containers/405a378d6f88f903dda5972dbfb8f037efff22296c3aaf4c50d44ebd68ad8655/hosts",

size of structure reference flexible-array-members-structure-c