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# Example:

```
$ sudo echo "DOCKER_OPTS=\"--registry-mirror=http://hub-mirror.c.163.com\"" >> /etc/default/docker
$ service docker restart
```

Or another way with updating /usr/lib/systemd/system/docker.service with:

```

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deb http://mirrors.aliyun.com/ubuntu/ xenial main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ xenial-backports main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ xenial-proposed main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ xenial-security main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ xenial-updates main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ xenial main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-backports main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-proposed main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main multiverse restricted universe

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# Epitome

I want to have os image that can login with password.

download UEC image.
for example, this precise.
http://cloud-images.ubuntu.com/precise/current/precise-server-cloudimg-amd64-disk1.img

this image was forbidden to password login feature in terminal console.
it's reasonable for use of cloud image.

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" VIM Configuration File
" Description: Optimized for C/C++ development, but useful also for other things.
" Author: Gerhard Gappmeier
"

" set UTF-8 encoding
set enc=utf-8
set fenc=utf-8
set termencoding=utf-8
" disable vi compatibility (emulation of old bugs)