echo "# リポジトリ名" >> README.md
git init
git add README.md
git commit -m "first commit"
git remote add origin https://github.com/ユーザー名/リポジトリ名.git
git push -u origin master

<div class="none">
  <img src="https://zapanet.info/zapanet_fav.png">
</div>
<div class="radiustest1">
  <img src="https://zapanet.info/zapanet_fav.png">
</div>

.none{
  
}
.radiustest1 img{
  border-radius: 50%; 
  width: 150px;
}

node -v

dnf module list nodejs
dnf module -y install nodejs:12
（あるいは、dnf module -y install nodejs:12/defaultなど）

node -v
→v12.16.1（バージョン確認）

npm --version
→6.13.4（バージョン確認）

dnf remove nodejs

dnf -y groupinstall 'Development tools'
curl -L git.io/nodebrew | perl - setup

Fetching nodebrew...
Installed nodebrew in $HOME/.nodebrew

========================================
Export a path to nodebrew:

export PATH=$HOME/.nodebrew/current/bin:$PATH
========================================

echo 'export PATH=$HOME/.nodebrew/current/bin:$PATH' >> ~/.bashrc
source ~/.bashrc

nodebrew help

nodebrew install-binary v12.18.1

nodebrew use v12.18.1

npm -v

dnf module -y install python27

dnf -y install git

dnf -y install glibc-static

No match for argument: glibc-static
Error: Unable to find a match: glibc-static

dnf --enablerepo=PowerTools install glibc-static

ssh-keygen -t rsa -b 4096 -C "GitHubに登録済みのメールアドレス"
Enter file in which to save the key :鍵の置き場所

chmod 600 作った鍵ファイル
eval "$(ssh-agent)"
ssh-add 作った鍵ファイル
ssh-add -l

view 作った鍵ファイル（.pubの方）

vi 鍵がおいてあるディレクトリ/.ssh/config

Host github.com
 HostName      github.com
 IdentityFile  作った鍵ファイル
 User          git

ssh -T git@github.com

mkdir /opt/workspace
chmod 777 /opt/workspace
cd /usr/local/src
chmod 777 /usr/local/src

git clone git://github.com/c9/core.git c9sdk
cd c9sdk
scripts/install-sdk.sh

Success!
run 'node server.js -p 8080 -a :' to launch Cloud9

node ./server.js -p 8080 -a user:password -w /opt/workspace/ --listen サーバのIPアドレス

firewall-cmd --permanent --add-port 8080/tcp
firewall-cmd --reload
firewall-cmd --list-port
systemctl reload firewalld.service

User saving /hello.php
Successfully saved /hello.php

vi /etc/nginx/nginx.conf

    server {
        listen       8080;
        listen       [::]:8080;
        server_name  _;
        root         /opt/workspace;
        include /etc/nginx/default.d/*.conf;

        location / {
        }
    }

systemctl reload nginx.service

Error: listen EADDRINUSE: address already in use IPアドレス:8080
    at Server.setupListenHandle [as _listen2] (net.js:1313:16)
    at listenInCluster (net.js:1361:12)
    at doListen (net.js:1498:7)
    at processTicksAndRejections (internal/process/task_queues.js:85:21)
Emitted 'error' event on Server instance at:
    at emitErrorNT (net.js:1340:8)
    at processTicksAndRejections (internal/process/task_queues.js:84:21) {
  code: 'EADDRINUSE',
  errno: 'EADDRINUSE',
  syscall: 'listen',
  address: 'IPアドレス',
  port: 8080
}

    server {
        listen       8081;
        listen       [::]:8081;
        server_name  _;
        root         /opt/workspace;
        include /etc/nginx/default.d/*.conf;

        location / {
        }
    }