BruceZu

 X11, or XWindows as it is known is the graphical interface for Unix/Linux,
 where Quartz (including Quartz Extreme) is the graphical interface layer for OSX, 
 the Finder is for OS9 and below, 
 and Windows is (or rather, was) for DOS. 
 
 x11                    : Unix/Linux
 Quartz, Quartz Extreme : OSX
 Finder                 : OS9 and below
 Windows                : DOS
 

BruceZu

#System Design Interview Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

##Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

BruceZu

# Copyright 2015 The Bazel Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,

BruceZu

localhost and pad name 

BruceZu

hotkey  shorcut  vim

BruceZu

hot key short cut bash shell

BruceZu

K8s and docker

BruceZu

ansible cannot ping the control machine itself 

BruceZu

check service centOS

BruceZu

Ansible -C --check.  Dry run