Raspberry PI(19)でVPN

RaspberryPIを工場で採用する事例が増えてきている。
工場用に頑丈な箱をつけて販売していたり、
セキュリティの設定をして運用したりしている。

工場からVPNを通して、管理サーバにデータを送る方法も取る場合がある。

# dockerでも同じ作業。
RaspberryPIと同じ作業をdockerでも行い、該当ソフトウェアの機能、設定方法を確認する。

# VPN
virtual private network(仮想私設網)
## pivpn
Raspberry PiをVPNサーバとする
https://qiita.com/morinokami/items/8b58f210c2bdec2b13cd

## Open VPN
Raspberry PiでOpenVPNサーバを構築する
https://qiita.com/moyashimanjyu/items/3ee299acc3081630b1d6

OpenVPNで自宅RaspberryPiサーバを公開
https://qiita.com/akiraak/items/4b28e0288cb440ab5ba0

Raspberry PiをVPNGateプロクシにする(Wifi APルータ)
https://qiita.com/mt08/items/01f57f8a6658922755b3

### @nabepy
Raspberry Pi 3をOpenVPNサーバにする（前提環境③）VPNサーバ
https://qiita.com/nabepy/items/aed364531dca9d20a079

Raspberry Pi 3をOpenVPNサーバにする（前提環境③）iPhone VPNクライアント
https://qiita.com/nabepy/items/3e3d79670b9c0d0e1982

iPhoneとVPN接続したりして持ち運んでデモをするRaspberry Pi環境
https://qiita.com/nabepy/items/47704696e41b10d86186

# SoftEther
SoftEther VPNを使いRaspberry PiをVPNサーバにする
https://qiita.com/nullsnet/items/0b75cf6328653f14bf38

Raspberry Pi 3 にSoftEther VPNを設定するのに６日間
https://qiita.com/dauuricus/items/8453e70b54ab64f22f2d

Raspberry PiでのVPNサーバ構築
https://qiita.com/tkyonezu/items/00311e2285366984891c

30分あれば出来る、RaspberryPIでVPNサーバー構築(IPSec/L2TP Raspbian編)
https://qiita.com/sumyapp/items/b13542e6d0dae5b2153e

Raspberry Pi3にVPNサーバーとVNCサーバー立ててiPhoneから艦これするまでメモ（その1）
https://qiita.com/r9ff12/items/01806a338958b48cfa91

Raspberry Pi に SoftEther_VPN Client をインストール
https://qiita.com/ekzemplaro/items/57b13994fbd1b5e3c286

Raspberry Pi3(Ubuntu18.04LTS)でSoftEther VPN
https://qiita.com/devzooiiooz/items/44a654b11aa23b5eb2f4

Raspberry PiにSoftether VPNサーバーをセットする
https://qiita.com/dauuricus/items/ea0259d48a63f4d45b39

USB over SoftEtherVPN 〜 手元のRaspberryPIのUSBをクラウドを越えてPCへ接続〜
https://qiita.com/nmatsui/items/ede63f91cb51e12e2f8c

Raspberry PiでSoftEther VPN Serverを動かすhttps://qiita.com/kitashu/items/176e21c1a05bf5c90d09

Raspberry PiにSoftEther VPN Bridgeをインストールして常時VPN接続されたネットワークを作成する
https://qiita.com/kakken1988/items/6e4a4ae0a9cdf49564a3

## 自己参照(self reference)
SoftEtherを知る
https://qiita.com/kaizen_nagoya/items/7a4062f845ebb2539e25

softether on docker(作業中)
https://qiita.com/kaizen_nagoya/items/fd8778bc768f2be734e2

「ソフトイーサ　PacketiX VPN入門」を読む
https://qiita.com/kaizen_nagoya/items/3b1d330b2cddaacfa5b8

softether on docker(centos)　作業中
https://qiita.com/kaizen_nagoya/items/8afc39c6a4b1d17d1f76

# 巻末付録 docker 作業

```
OgawaKishinoMBP:Downloads ogawakiyoshi$ docker run -it -p 8080:8080 ubuntu /bin/bash 
Unable to find image 'ubuntu:latest' locally
latest: Pulling from library/ubuntu
6abc03819f3e: Pull complete 
05731e63f211: Pull complete 
0bd67c50d6be: Pull complete 
Digest: sha256:f08638ec7ddc90065187e7eabdfac3c96e5ff0f6b2f1762cf31a4f49b53000a5
Status: Downloaded newer image for ubuntu:latest
root@70c145ed23f8:/# apt update
Get:1 http://archive.ubuntu.com/ubuntu bionic InRelease [242 kB]
Get:2 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Get:3 http://security.ubuntu.com/ubuntu bionic-security/multiverse amd64 Packages [4168 B]
Get:4 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]                         
Get:5 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages [451 kB]
Get:6 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]       
Get:7 http://archive.ubuntu.com/ubuntu bionic/restricted amd64 Packages [13.5 kB] 
Get:8 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages [1344 kB]
Get:9 http://security.ubuntu.com/ubuntu bionic-security/restricted amd64 Packages [5436 B]
Get:10 http://security.ubuntu.com/ubuntu bionic-security/universe amd64 Packages [310 kB]
Get:11 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages [11.3 MB]
Get:12 http://archive.ubuntu.com/ubuntu bionic/multiverse amd64 Packages [186 kB]                                                                                         
Get:13 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [803 Kb]
Get:14 http://archive.ubuntu.com/ubuntu bionic-updates/multiverse amd64 Packages [7236 B]                                        
Get:15 http://archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages [1200 kB]                                                
Get:16 http://archive.ubuntu.com/ubuntu bionic-updates/restricted amd64 Packages [10.8 kB]                                                                                
Get:17 http://archive.ubuntu.com/ubuntu bionic-backports/universe amd64 Packages [3671 B]                                                                                 
Get:18 http://archive.ubuntu.com/ubuntu bionic-backports/main amd64 Packages [942 B]                                                                                      
Fetched 16.2 MB in 8s (2135 kB/s)                                                                                                                                         
Reading package lists... Done
Building dependency tree       
Reading state information... Done
2 packages can be upgraded. Run 'apt list --upgradable' to see them.
root@70c145ed23f8:/# apt upgrade -y
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages will be upgraded:
  bash debconf
2 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 738 kB of archives.
After this operation, 1024 B disk space will be freed.
Get:1 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 bash amd64 4.4.18-2ubuntu1.1 [615 kB]
Get:2 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 debconf all 1.5.66ubuntu1 [124 kB]
Fetched 738 kB in 3s (277 kB/s) 
debconf: delaying package configuration, since apt-utils is not installed
(Reading database ... 4040 files and directories currently installed.)
Preparing to unpack .../bash_4.4.18-2ubuntu1.1_amd64.deb ...
Unpacking bash (4.4.18-2ubuntu1.1) over (4.4.18-2ubuntu1) ...
Setting up bash (4.4.18-2ubuntu1.1) ...
update-alternatives: error: alternative path /usr/share/man/man7/bash-builtins.7.gz doesn't exist
(Reading database ... 4040 files and directories currently installed.)
Preparing to unpack .../debconf_1.5.66ubuntu1_all.deb ...
Unpacking debconf (1.5.66ubuntu1) over (1.5.66) ...
Setting up debconf (1.5.66ubuntu1) ...
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 76.)
debconf: falling back to frontend: Readline
debconf: unable to initialize frontend: Readline
debconf: (Can't locate Term/ReadLine.pm in @INC (you may need to install the Term::ReadLine module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.26.1 /usr/local/share/perl/5.26.1 /usr/lib/x86_64-linux-gnu/perl5/5.26 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.26 /usr/share/perl/5.26 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-base) at /usr/share/perl5/Debconf/FrontEnd/Readline.pm line 7.)
debconf: falling back to frontend: Teletype
root@70c145ed23f8:/# apt install sudo vim apt-utils wget adduser gpasswd
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package gpasswd
root@70c145ed23f8:/# apt install sudo vim apt-utils wget adduser        
Reading package lists... Done
Building dependency tree       
Reading state information... Done
adduser is already the newest version (3.116ubuntu1).
The following additional packages will be installed:
  ca-certificates file libapt-inst2.0 libexpat1 libgpm2 libmagic-mgc libmagic1 libmpdec2 libpsl5 libpython3.6 libpython3.6-minimal libpython3.6-stdlib libreadline7
  libsqlite3-0 libssl1.1 mime-support openssl publicsuffix readline-common vim-common vim-runtime xxd xz-utils
Suggested packages:
  gpm readline-doc ctags vim-doc vim-scripts
The following NEW packages will be installed:
  apt-utils ca-certificates file libapt-inst2.0 libexpat1 libgpm2 libmagic-mgc libmagic1 libmpdec2 libpsl5 libpython3.6 libpython3.6-minimal libpython3.6-stdlib
  libreadline7 libsqlite3-0 libssl1.1 mime-support openssl publicsuffix readline-common sudo vim vim-common vim-runtime wget xxd xz-utils
0 upgraded, 27 newly installed, 0 to remove and 0 not upgraded.
Need to get 14.6 MB of archives.
After this operation, 66.8 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 libapt-inst2.0 amd64 1.6.10 [55.6 kB]
Get:2 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 apt-utils amd64 1.6.10 [208 kB]
Get:3 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 libssl1.1 amd64 1.1.0g-2ubuntu4.3 [1130 kB]
Get:4 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 openssl amd64 1.1.0g-2ubuntu4.3 [532 kB]
Get:5 http://archive.ubuntu.com/ubuntu bionic/main amd64 ca-certificates all 20180409 [151 kB]
Get:6 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 libmagic-mgc amd64 1:5.32-2ubuntu0.2 [184 kB]
Get:7 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 libmagic1 amd64 1:5.32-2ubuntu0.2 [68.5 kB]
Get:8 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 file amd64 1:5.32-2ubuntu0.2 [22.1 kB]
Get:9 http://archive.ubuntu.com/ubuntu bionic/main amd64 libexpat1 amd64 2.2.5-3 [80.2 kB]
Get:10 http://archive.ubuntu.com/ubuntu bionic/main amd64 libmpdec2 amd64 2.4.2-1ubuntu1 [84.1 kB]
Get:11 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 libpython3.6-minimal amd64 3.6.7-1~18.04 [531 kB]
Get:12 http://archive.ubuntu.com/ubuntu bionic/main amd64 mime-support all 3.60ubuntu1 [30.1 kB]
Get:13 http://archive.ubuntu.com/ubuntu bionic/main amd64 readline-common all 7.0-3 [52.9 kB]
Get:14 http://archive.ubuntu.com/ubuntu bionic/main amd64 libreadline7 amd64 7.0-3 [124 kB]
Get:15 http://archive.ubuntu.com/ubuntu bionic/main amd64 libsqlite3-0 amd64 3.22.0-1 [496 kB]
Get:16 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 libpython3.6-stdlib amd64 3.6.7-1~18.04 [1711 kB]
Get:17 http://archive.ubuntu.com/ubuntu bionic/main amd64 sudo amd64 1.8.21p2-3ubuntu1 [428 kB]
Get:18 http://archive.ubuntu.com/ubuntu bionic/main amd64 xxd amd64 2:8.0.1453-1ubuntu1 [49.2 kB]
Get:19 http://archive.ubuntu.com/ubuntu bionic/main amd64 vim-common all 2:8.0.1453-1ubuntu1 [70.4 kB]
Get:20 http://archive.ubuntu.com/ubuntu bionic/main amd64 xz-utils amd64 5.2.2-1.3 [83.8 kB]
Get:21 http://archive.ubuntu.com/ubuntu bionic/main amd64 libpsl5 amd64 0.19.1-5build1 [41.8 kB]
Get:22 http://archive.ubuntu.com/ubuntu bionic/main amd64 publicsuffix all 20180223.1310-1 [97.6 kB]
Get:23 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 wget amd64 1.19.4-1ubuntu2.2 [316 kB]
Get:24 http://archive.ubuntu.com/ubuntu bionic/main amd64 libgpm2 amd64 1.20.7-5 [15.1 kB]
Get:25 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 libpython3.6 amd64 3.6.7-1~18.04 [1415 kB]
Get:26 http://archive.ubuntu.com/ubuntu bionic/main amd64 vim-runtime all 2:8.0.1453-1ubuntu1 [5437 kB]
Get:27 http://archive.ubuntu.com/ubuntu bionic/main amd64 vim amd64 2:8.0.1453-1ubuntu1 [1152 kB]                                                                         
Fetched 14.6 MB in 7s (2078 kB/s)                                                                                                                                         
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package libapt-inst2.0:amd64.
(Reading database ... 4040 files and directories currently installed.)
Preparing to unpack .../00-libapt-inst2.0_1.6.10_amd64.deb ...
Unpacking libapt-inst2.0:amd64 (1.6.10) ...
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Unpacking apt-utils (1.6.10) ...
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Preparing to unpack .../02-libssl1.1_1.1.0g-2ubuntu4.3_amd64.deb ...
Unpacking libssl1.1:amd64 (1.1.0g-2ubuntu4.3) ...
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Preparing to unpack .../03-openssl_1.1.0g-2ubuntu4.3_amd64.deb ...
Unpacking openssl (1.1.0g-2ubuntu4.3) ...
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Preparing to unpack .../04-ca-certificates_20180409_all.deb ...
Unpacking ca-certificates (20180409) ...
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Preparing to unpack .../05-libmagic-mgc_1%3a5.32-2ubuntu0.2_amd64.deb ...
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Unpacking libmpdec2:amd64 (2.4.2-1ubuntu1) ...
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Unpacking mime-support (3.60ubuntu1) ...
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Unpacking libsqlite3-0:amd64 (3.22.0-1) ...
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Unpacking xxd (2:8.0.1453-1ubuntu1) ...
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Unpacking vim-common (2:8.0.1453-1ubuntu1) ...
Selecting previously unselected package xz-utils.
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Unpacking xz-utils (5.2.2-1.3) ...
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Unpacking libpython3.6:amd64 (3.6.7-1~18.04) ...
Selecting previously unselected package vim-runtime.
Preparing to unpack .../25-vim-runtime_2%3a8.0.1453-1ubuntu1_all.deb ...
Adding 'diversion of /usr/share/vim/vim80/doc/help.txt to /usr/share/vim/vim80/doc/help.txt.vim-tiny by vim-runtime'
Adding 'diversion of /usr/share/vim/vim80/doc/tags to /usr/share/vim/vim80/doc/tags.vim-tiny by vim-runtime'
Unpacking vim-runtime (2:8.0.1453-1ubuntu1) ...
Selecting previously unselected package vim.
Preparing to unpack .../26-vim_2%3a8.0.1453-1ubuntu1_amd64.deb ...
Unpacking vim (2:8.0.1453-1ubuntu1) ...
Setting up readline-common (7.0-3) ...
Setting up libapt-inst2.0:amd64 (1.6.10) ...
Setting up libexpat1:amd64 (2.2.5-3) ...
Setting up mime-support (3.60ubuntu1) ...
Setting up xxd (2:8.0.1453-1ubuntu1) ...
Setting up sudo (1.8.21p2-3ubuntu1) ...
Setting up libgpm2:amd64 (1.20.7-5) ...
Setting up apt-utils (1.6.10) ...
Setting up libreadline7:amd64 (7.0-3) ...
Setting up libpsl5:amd64 (0.19.1-5build1) ...
Setting up libmagic-mgc (1:5.32-2ubuntu0.2) ...
Setting up libmagic1:amd64 (1:5.32-2ubuntu0.2) ...
Processing triggers for libc-bin (2.27-3ubuntu1) ...
Setting up publicsuffix (20180223.1310-1) ...
Setting up libssl1.1:amd64 (1.1.0g-2ubuntu4.3) ...
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 76.)
debconf: falling back to frontend: Readline
debconf: unable to initialize frontend: Readline
debconf: (Can't locate Term/ReadLine.pm in @INC (you may need to install the Term::ReadLine module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.26.1 /usr/local/share/perl/5.26.1 /usr/lib/x86_64-linux-gnu/perl5/5.26 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.26 /usr/share/perl/5.26 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-base) at /usr/share/perl5/Debconf/FrontEnd/Readline.pm line 7.)
debconf: falling back to frontend: Teletype
Setting up xz-utils (5.2.2-1.3) ...
update-alternatives: using /usr/bin/xz to provide /usr/bin/lzma (lzma) in auto mode
update-alternatives: warning: skip creation of /usr/share/man/man1/lzma.1.gz because associated file /usr/share/man/man1/xz.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/unlzma.1.gz because associated file /usr/share/man/man1/unxz.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzcat.1.gz because associated file /usr/share/man/man1/xzcat.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzmore.1.gz because associated file /usr/share/man/man1/xzmore.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzless.1.gz because associated file /usr/share/man/man1/xzless.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzdiff.1.gz because associated file /usr/share/man/man1/xzdiff.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzcmp.1.gz because associated file /usr/share/man/man1/xzcmp.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzgrep.1.gz because associated file /usr/share/man/man1/xzgrep.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzegrep.1.gz because associated file /usr/share/man/man1/xzegrep.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzfgrep.1.gz because associated file /usr/share/man/man1/xzfgrep.1.gz (of link group lzma) doesn't exist
Setting up openssl (1.1.0g-2ubuntu4.3) ...
Setting up wget (1.19.4-1ubuntu2.2) ...
Setting up vim-common (2:8.0.1453-1ubuntu1) ...
Setting up libsqlite3-0:amd64 (3.22.0-1) ...
Setting up vim-runtime (2:8.0.1453-1ubuntu1) ...
Setting up ca-certificates (20180409) ...
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 76.)
debconf: falling back to frontend: Readline
debconf: unable to initialize frontend: Readline
debconf: (Can't locate Term/ReadLine.pm in @INC (you may need to install the Term::ReadLine module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.26.1 /usr/local/share/perl/5.26.1 /usr/lib/x86_64-linux-gnu/perl5/5.26 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.26 /usr/share/perl/5.26 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-base) at /usr/share/perl5/Debconf/FrontEnd/Readline.pm line 7.)
debconf: falling back to frontend: Teletype
Updating certificates in /etc/ssl/certs...
133 added, 0 removed; done.
Setting up libmpdec2:amd64 (2.4.2-1ubuntu1) ...
Setting up file (1:5.32-2ubuntu0.2) ...
Setting up libpython3.6-minimal:amd64 (3.6.7-1~18.04) ...
Setting up libpython3.6-stdlib:amd64 (3.6.7-1~18.04) ...
Setting up libpython3.6:amd64 (3.6.7-1~18.04) ...
Setting up vim (2:8.0.1453-1ubuntu1) ...
update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/vim (vim) in auto mode
update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/vimdiff (vimdiff) in auto mode
update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/rvim (rvim) in auto mode
update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/rview (rview) in auto mode
update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/vi (vi) in auto mode
update-alternatives: warning: skip creation of /usr/share/man/fr/man1/vi.1.gz because associated file /usr/share/man/fr/man1/vim.1.gz (of link group vi) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/it/man1/vi.1.gz because associated file /usr/share/man/it/man1/vim.1.gz (of link group vi) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/pl/man1/vi.1.gz because associated file /usr/share/man/pl/man1/vim.1.gz (of link group vi) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/ru/man1/vi.1.gz because associated file /usr/share/man/ru/man1/vim.1.gz (of link group vi) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/ja/man1/vi.1.gz because associated file /usr/share/man/ja/man1/vim.1.gz (of link group vi) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/vi.1.gz because associated file /usr/share/man/man1/vim.1.gz (of link group vi) doesn't exist
update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/view (view) in auto mode
update-alternatives: warning: skip creation of /usr/share/man/fr/man1/view.1.gz because associated file /usr/share/man/fr/man1/vim.1.gz (of link group view) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/it/man1/view.1.gz because associated file /usr/share/man/it/man1/vim.1.gz (of link group view) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/pl/man1/view.1.gz because associated file /usr/share/man/pl/man1/vim.1.gz (of link group view) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/ru/man1/view.1.gz because associated file /usr/share/man/ru/man1/vim.1.gz (of link group view) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/ja/man1/view.1.gz because associated file /usr/share/man/ja/man1/vim.1.gz (of link group view) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/view.1.gz because associated file /usr/share/man/man1/vim.1.gz (of link group view) doesn't exist
update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/ex (ex) in auto mode
update-alternatives: warning: skip creation of /usr/share/man/fr/man1/ex.1.gz because associated file /usr/share/man/fr/man1/vim.1.gz (of link group ex) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/it/man1/ex.1.gz because associated file /usr/share/man/it/man1/vim.1.gz (of link group ex) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/pl/man1/ex.1.gz because associated file /usr/share/man/pl/man1/vim.1.gz (of link group ex) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/ru/man1/ex.1.gz because associated file /usr/share/man/ru/man1/vim.1.gz (of link group ex) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/ja/man1/ex.1.gz because associated file /usr/share/man/ja/man1/vim.1.gz (of link group ex) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/ex.1.gz because associated file /usr/share/man/man1/vim.1.gz (of link group ex) doesn't exist
update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/editor (editor) in auto mode
update-alternatives: warning: skip creation of /usr/share/man/fr/man1/editor.1.gz because associated file /usr/share/man/fr/man1/vim.1.gz (of link group editor) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/it/man1/editor.1.gz because associated file /usr/share/man/it/man1/vim.1.gz (of link group editor) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/pl/man1/editor.1.gz because associated file /usr/share/man/pl/man1/vim.1.gz (of link group editor) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/ru/man1/editor.1.gz because associated file /usr/share/man/ru/man1/vim.1.gz (of link group editor) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/ja/man1/editor.1.gz because associated file /usr/share/man/ja/man1/vim.1.gz (of link group editor) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/editor.1.gz because associated file /usr/share/man/man1/vim.1.gz (of link group editor) doesn't exist
Processing triggers for libc-bin (2.27-3ubuntu1) ...
Processing triggers for ca-certificates (20180409) ...
Updating certificates in /etc/ssl/certs...
0 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d...
done.
root@70c145ed23f8:/# adduser svpn
Adding user `svpn' ...
Adding new group `svpn' (1000) ...
Adding new user `svpn' (1000) with group `svpn' ...
Creating home directory `/home/svpn' ...
Copying files from `/etc/skel' ...
Enter new UNIX password: 
Retype new UNIX password: 
passwd: password updated successfully
Changing the user information for svpn
Enter the new value, or press ENTER for the default
	Full Name []: 
	Room Number []: 
	Work Phone []: 
	Home Phone []: 
	Other []: 
Is the information correct? [Y/n] y
root@70c145ed23f8:/# gpasswd -a svpn sudo
Adding user svpn to group sudo
root@70c145ed23f8:/# gpasswd -a svpn adm 
Adding user svpn to group adm
root@70c145ed23f8:/# gpasswd -a svpn admin
gpasswd: group 'admin' does not exist in /etc/group
root@70c145ed23f8:/# sudo useradd -s /bin/false
Usage: useradd [options] LOGIN
       useradd -D
       useradd -D [options]

Options:
  -b, --base-dir BASE_DIR       base directory for the home directory of the
                                new account
  -c, --comment COMMENT         GECOS field of the new account
  -d, --home-dir HOME_DIR       home directory of the new account
  -D, --defaults                print or change default useradd configuration
  -e, --expiredate EXPIRE_DATE  expiration date of the new account
  -f, --inactive INACTIVE       password inactivity period of the new account
  -g, --gid GROUP               name or ID of the primary group of the new
                                account
  -G, --groups GROUPS           list of supplementary groups of the new
                                account
  -h, --help                    display this help message and exit
  -k, --skel SKEL_DIR           use this alternative skeleton directory
  -K, --key KEY=VALUE           override /etc/login.defs defaults
  -l, --no-log-init             do not add the user to the lastlog and
                                faillog databases
  -m, --create-home             create the user's home directory
  -M, --no-create-home          do not create the user's home directory
  -N, --no-user-group           do not create a group with the same name as
                                the user
  -o, --non-unique              allow to create users with duplicate
                                (non-unique) UID
  -p, --password PASSWORD       encrypted password of the new account
  -r, --system                  create a system account
  -R, --root CHROOT_DIR         directory to chroot into
  -s, --shell SHELL             login shell of the new account
  -u, --uid UID                 user ID of the new account
  -U, --user-group              create a group with the same name as the user
  -Z, --selinux-user SEUSER     use a specific SEUSER for the SELinux user mapping
      --extrausers              Use the extra users database

```

<この項は書きかけです。順次追記します。>
This article is not completed. I will add some words and/or centences in order.
# 自己記事一覧
Qiitaで逆リンクを表示しなくなったような気がする。時々、スマフォで表示するとあらわっることがあり、完全に削除したのではなさそう。

４月以降、せっせとリンクリストを作り、統計を取って確率を説明しようとしている。
2025年２月末を目標にしている。

一覧の一覧( The directory of directories of mine.) Qiita(100)
https://qiita.com/kaizen_nagoya/items/7eb0e006543886138f39

仮説（0）一覧（目標100現在40）
https://qiita.com/kaizen_nagoya/items/f000506fe1837b3590df

Qiita(0)Qiita関連記事一覧（自分）
https://qiita.com/kaizen_nagoya/items/58db5fbf036b28e9dfa6

Error一覧 error(0)
https://qiita.com/kaizen_nagoya/items/48b6cbc8d68eae2c42b8

C++ Support(0)　
https://qiita.com/kaizen_nagoya/items/8720d26f762369a80514

Coding(0) Rules, C, Secure, MISRA and so on
https://qiita.com/kaizen_nagoya/items/400725644a8a0e90fbb0

Ethernet 記事一覧　Ethernet(0)
https://qiita.com/kaizen_nagoya/items/88d35e99f74aefc98794

Wireshark 一覧 wireshark(0)、Ethernet(48) 
https://qiita.com/kaizen_nagoya/items/fbed841f61875c4731d0

線網（Wi-Fi）空中線(antenna)(0) 記事一覧(118/300目標)
https://qiita.com/kaizen_nagoya/items/5e5464ac2b24bd4cd001

Raspberrpy PI(0) 記事見直し 
https://qiita.com/kaizen_nagoya/items/b242287666c453a3d5d7

なぜdockerで機械学習するか 書籍・ソース一覧作成中 (目標100)
https://qiita.com/kaizen_nagoya/items/ddd12477544bf5ba85e2

プログラムちょい替え（0）一覧:4件
https://qiita.com/kaizen_nagoya/items/296d87ef4bfd516bc394

言語処理100本ノックをdockerで。python覚えるのに最適。:10+12
https://qiita.com/kaizen_nagoya/items/7e7eb7c543e0c18438c4

Python(0)記事をまとめたい。
https://qiita.com/kaizen_nagoya/items/088c57d70ab6904ebb53

安全（0）安全工学シンポジウムに向けて: 21
https://qiita.com/kaizen_nagoya/items/c5d78f3def8195cb2409

プログラマによる、プログラマのための、統計(0)と確率のプログラミングとその後
https://qiita.com/kaizen_nagoya/items/6e9897eb641268766909

転職(0)一覧
https://qiita.com/kaizen_nagoya/items/f77520d378d33451d6fe

技術士(0)一覧
https://qiita.com/kaizen_nagoya/items/ce4ccf4eb9c5600b89ea

Reserchmap(0) 一覧
https://qiita.com/kaizen_nagoya/items/506c79e562f406c4257e

物理記事　上位100
https://qiita.com/kaizen_nagoya/items/66e90fe31fbe3facc6ff

量子(0) 計算機, 量子力学 
https://qiita.com/kaizen_nagoya/items/1cd954cb0eed92879fd4

数学関連記事１００
https://qiita.com/kaizen_nagoya/items/d8dadb49a6397e854c6d

coq(0) 一覧
https://qiita.com/kaizen_nagoya/items/d22f9995cf2173bc3b13

統計(0)一覧
https://qiita.com/kaizen_nagoya/items/80d3b221807e53e88aba

図(0) state, sequence and timing. UML and お絵描き 
https://qiita.com/kaizen_nagoya/items/60440a882146aeee9e8f

色(0) 記事100書く切り口 
https://qiita.com/kaizen_nagoya/items/22331c0335ed34326b9b

品質一覧 
https://qiita.com/kaizen_nagoya/items/2b99b8e9db6d94b2e971

言語・文学記事　１００
https://qiita.com/kaizen_nagoya/items/42d58d5ef7fb53c407d6

医工連携関連記事一覧
https://qiita.com/kaizen_nagoya/items/6ab51c12ba51bc260a82

水の資料集(0)　方針と成果
https://qiita.com/kaizen_nagoya/items/f5dbb30087ea732b52aa

自動車　記事　１００
https://qiita.com/kaizen_nagoya/items/f7f0b9ab36569ad409c5

SDV 一覧　
https://qiita.com/kaizen_nagoya/items/49aba886ad208e2aa70f

通信記事１００
https://qiita.com/kaizen_nagoya/items/1d67de5e1cd207b05ef7

日本語（０）一欄
https://qiita.com/kaizen_nagoya/items/7498dcfa3a9ba7fd1e68

英語(0) 一覧
https://qiita.com/kaizen_nagoya/items/680e3f5cbf9430486c7d

音楽　一覧(0) 
https://qiita.com/kaizen_nagoya/items/b6e5f42bbfe3bbe40f5d

「@kazuo_reve 新人の方によく展開している有益な情報」確認一覧 
https://qiita.com/kaizen_nagoya/items/b9380888d1e5a042646b

鉄道（０）鉄道のシステム考察はてっちゃんがてつだってくれる
https://qiita.com/kaizen_nagoya/items/faa4ea03d91d901a618a

OSEK OS設計の基礎　OSEK(100)
https://qiita.com/kaizen_nagoya/items/7528a22a14242d2d58a3

coding (101) 一覧を作成し始めた。omake:最近のQiitaで表示しない5つの事象
https://qiita.com/kaizen_nagoya/items/20667f09f19598aedb68

官公庁・学校・公的団体（NPOを含む）システムの課題、官（０）
https://qiita.com/kaizen_nagoya/items/04ee6eaf7ec13d3af4c3

「はじめての」シリーズ　 ベクタージャパン　
https://qiita.com/kaizen_nagoya/items/2e41634f6e21a3cf74eb

AUTOSAR(0)Qiita記事一覧, OSEK(75)
https://qiita.com/kaizen_nagoya/items/89c07961b59a8754c869

プログラマが知っていると良い「公序良俗」
https://qiita.com/kaizen_nagoya/items/9fe7c0dfac2fbd77a945

LaTeX(0) 一覧　
https://qiita.com/kaizen_nagoya/items/e3f7dafacab58c499792

自動制御、制御工学一覧（０）
https://qiita.com/kaizen_nagoya/items/7767a4e19a6ae1479e6b

Rust(0) 一覧　
https://qiita.com/kaizen_nagoya/items/5e8bb080ba6ca0281927

# 関連資料
' @kazuo_reve 私が効果を確認した「小川メソッド」
https://qiita.com/kazuo_reve/items/a3ea1d9171deeccc04da

' @kazuo_reve 新人の方によく展開している有益な情報
https://qiita.com/kazuo_reve/items/d1a3f0ee48e24bba38f1

' @kazuo_reve Vモデルについて勘違いしていたと思ったこと
https://qiita.com/kazuo_reve/items/46fddb094563bd9b2e1e


## Engineering Festa 2024前に必読記事一覧
programの本質は計画だ。programは設計だ。
https://qiita.com/kaizen_nagoya/items/c8545a769c246a458c27

登壇直後版 色使い(JIS安全色) Qiita Engineer Festa 2023〜私しか得しないニッチな技術でLT〜 スライド編 0.15
https://qiita.com/kaizen_nagoya/items/f0d3070d839f4f735b2b

プログラマが知っていると良い「公序良俗」
https://qiita.com/kaizen_nagoya/items/9fe7c0dfac2fbd77a945

逆も真：社会人が最初に確かめるとよいこと。OSEK(69)、Ethernet(59)
https://qiita.com/kaizen_nagoya/items/39afe4a728a31b903ddc

統計の嘘。仮説（127）
https://qiita.com/kaizen_nagoya/items/63b48ecf258a3471c51b

自分の言葉だけで論理展開できるのが天才なら、文章の引用だけで論理展開できるのが秀才だ。仮説（136）
https://qiita.com/kaizen_nagoya/items/97cf07b9e24f860624dd

参考文献駆動執筆(references driven writing)・デンソークリエイト編
https://qiita.com/kaizen_nagoya/items/b27b3f58b8bf265a5cd1

「何を」よりも「誰を」。１０年後のために今見習いたい人たち
https://qiita.com/kaizen_nagoya/items/8045978b16eb49d572b2

Qiitaの記事に３段階または５段階で到達するための方法
https://qiita.com/kaizen_nagoya/items/6e9298296852325adc5e

出力(output)と呼ばないで。これは状態(state)です。
https://qiita.com/kaizen_nagoya/items/80b8b5913b2748867840

coding (101) 一覧を作成し始めた。omake:最近のQiitaで表示しない5つの事象
https://qiita.com/kaizen_nagoya/items/20667f09f19598aedb68

あなたは「勘違いまとめ」から、勘違いだと言っていることが勘違いだといくつ見つけられますか。人間の間違い(human error(125))の種類と対策
https://qiita.com/kaizen_nagoya/items/ae391b77fffb098b8fb4

プログラマの「プログラムが書ける」思い込みは強みだ。３つの理由。仮説（168）統計と確率(17) , OSEK(79)
https://qiita.com/kaizen_nagoya/items/bc5dd86e414de402ec29

出力(output)と呼ばないで。これは状態(state)です。
https://qiita.com/kaizen_nagoya/items/80b8b5913b2748867840

これからの情報伝達手段の在り方について考えてみよう。炎上と便乗。
https://qiita.com/kaizen_nagoya/items/71a09077ac195214f0db

ISO/IEC JTC1 SC7 Software and System Engineering
https://qiita.com/kaizen_nagoya/items/48b43f0f6976a078d907

アクセシビリティの知見を発信しよう！（再び）
https://qiita.com/kaizen_nagoya/items/03457eb9ee74105ee618

統計論及確率論輪講（再び）
https://qiita.com/kaizen_nagoya/items/590874ccfca988e85ea3

読者の心をグッと惹き寄せる7つの魔法
https://qiita.com/kaizen_nagoya/items/b1b5e89bd5c0a211d862

「@kazuo_reve 新人の方によく展開している有益な情報」確認一覧
https://qiita.com/kaizen_nagoya/items/b9380888d1e5a042646b

ソースコードで議論しよう。日本語で議論するの止めましょう（あるプログラミング技術の議論報告）
https://qiita.com/kaizen_nagoya/items/8b9811c80f3338c6c0b0

脳内コンパイラの3つの危険
https://qiita.com/kaizen_nagoya/items/7025cf2d7bd9f276e382

心理学の本を読むよりはコンパイラ書いた方がよくね。仮説（34）
https://qiita.com/kaizen_nagoya/items/fa715732cc148e48880e

NASAを超えるつもりがあれば読んでください。
https://qiita.com/kaizen_nagoya/items/e81669f9cb53109157f6

データサイエンティストの気づき!「勉強して仕事に役立てない人。大嫌い!!」『それ自分かも?』ってなった!!! 
https://qiita.com/kaizen_nagoya/items/d85830d58d8dd7f71d07

「ぼくの好きな先生」「人がやらないことをやれ」プログラマになるまで。仮説（37）　
https://qiita.com/kaizen_nagoya/items/53e4bded9fe5f724b3c4

なぜ経済学徒を辞め、計算機屋になったか（経済学部入学前・入学後・卒業後対応） 転職(1)  
https://qiita.com/kaizen_nagoya/items/06335a1d24c099733f64    

プログラミング言語教育のXYZ。 仮説（52） 
https://qiita.com/kaizen_nagoya/items/1950c5810fb5c0b07be4

【24卒向け】9ヶ月後に年収１０００万円を目指す。二つの関門と三つの道。
https://qiita.com/kaizen_nagoya/items/fb5bff147193f726ad25

「【25卒向け】Qiita Career Meetup for STUDENT」予習の勧め
https://qiita.com/kaizen_nagoya/items/00eadb8a6e738cb6336f

大学入試不合格でも筆記試験のない大学に入って卒業できる。卒業しなくても博士になれる。
https://qiita.com/kaizen_nagoya/items/74adec99f396d64b5fd5

全世界の不登校の子供たち「博士論文」を書こう。世界子供博士論文遠隔実践中心 安全(99)
https://qiita.com/kaizen_nagoya/items/912d69032c012bcc84f2

小川メソッド　覚え（書きかけ）
https://qiita.com/kaizen_nagoya/items/3593d72eca551742df68

DoCAP（ドゥーキャップ）って何ですか？
https://qiita.com/kaizen_nagoya/items/47e0e6509ab792c43327

views 20,000越え自己記事一覧
https://qiita.com/kaizen_nagoya/items/58e8bd6450957cdecd81

Views１万越え、もうすぐ１万記事一覧 最近いいねをいただいた213記事
https://qiita.com/kaizen_nagoya/items/d2b805717a92459ce853

amazon 殿堂入りNo1レビュアになるまで。仮説(102)
https://qiita.com/kaizen_nagoya/items/83259d18921ce75a91f4

100以上いいねをいただいた記事16選
https://qiita.com/kaizen_nagoya/items/f8d958d9084ffbd15d2a

小川清最終講義、最終講義（再）計画, Ethernet(100) 英語(100) 安全(100)
https://qiita.com/kaizen_nagoya/items/e2df642e3951e35e6a53

＜この記事は個人の過去の経験に基づく個人の感想です。現在所属する組織、業務とは関係がありません。＞
This article is an individual impression based on my individual experience. It has nothing to do with the organization or business to which I currently belong.
### 文書履歴(document history)
ver. 0.01 初稿 20190523
ver. 0.02 docker追記 20190524
### 最後までおよみいただきありがとうございました。
いいね　💚、フォローをお願いします。
#### Thank you very much for reading to the last sentence.
Please press the like icon 💚　and follow me for your happy life.
 ＜この記事は個人の過去の経験に基づく個人の感想です。現在所属する組織、業務とは関係がありません。＞

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