MacOS 下安装 python3 & pip3


authz & authn

Authn primarily deals with user identity: who is this person? Is she who she says she is? There are a large number of systems that handle this “checkpoint” level of identity and access management and help to reduce the number of credentials that a user needs to provide, often through single sign-on (or SSO).

PostgreSQL 备份


SSH 登录出现 LC_CTYPE 错误

从 MacOS iTerm2 登录 CentOS 7 SSH Server , 出现如下错误:

cilium - API-aware Networking and Security Cilium: Helping Linux Secure Microservices

qcow2 snapshot

qcow2 snapshot 有个内置和外置之分。

Linux 端口转发(公网机器端口转发到内网IP和端口)

如果我们有一台 Linux 服务器有公网IP,如何通过这台有公网IP的服务器,将自定义的外部端口,映射/转发(forward)内部IP和端口呢?

CentOS 7 DHCP (dhclient) 错误跟踪

使用 CentOS 7 Cloud Image 创建 KVM 实例,出现奇怪的问题,etho0 网卡偶尔会失去 IP 。

owncloud 使用总结


MacBook Pro 使用记录

Mac 桌面

使用 hostnamectl 配置主机名

hostnamectl 是 systemd 提供的一个非常方便的设置主机名工具。