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    # Week6, 10/25 LSA ### ssh 安全的遠端連線 - ssh ip - ssh -v -p 22 username@ip - 以金鑰認證,自動認證登入 ssh-copy-id https://www.ssh.com/ssh/copy-id ### scp + `scp <filename> <ip/domain>:<path>` 傳送檔案到遠端機器 冒號後方沒有加東西的話,預設為加入家目錄 + `scp <filename> <ip/domain>:<server path> <your path>` 從遠端傳送檔案到自己機器 + `scp -r <filename> <ip/domain>:<server path> <your path>` 從遠端傳送多個檔案到自己機器 + `ip a` / `ip addr` 取代 `ifconfig` ### WebServer nginx + `sudo apt install nginx` 安裝webserver nginx 打開瀏覽器打 <自己的ip> 會看到Welcome to nginx + `/etc/nginx/sites-available/` 設定檔存放處 + `/etc/nginx/sites-enabled/` 啟動設定檔 + `/etc/nginx/sites-available/default` ``` server { listen 80 default_server (IPV4) listen [::]:80 default_server (IPV6) } // 聽取的port ``` + `root /var/www/html`預設讀取資料夾 + `index index.html index.htm index.nginx-debian.html`預設讀取首頁 + `sites-enabled ` 裏面存放的捷徑是從`sites-available` 那裏soft-link 過來的 + `ln -s <source path> <destination path>` 如果destination 的filename 沒有指定就會用source的檔案名稱 + `sudo nginx -t` 檢查設定檔有沒有問題 + `sudo nginx -s reload` reload server + `sudo vim /etc/hosts` 一個表格裡面放ip和其對應的string,讓使用者打string導到跟它匹配的ip + `server_name <self define string>`把string加在server name 後面  + `ping localhost` + `sudo nginx -s stop`停止nginx服務 + `sudo service nginx restart` 重新啓動nginx :::info ctrl + shift + r 瀏覽器重新整理頁面(包括快取) ::: :::warning 每次改完設定檔要reload一次才會套用 ::: ### curl + `curl <url>` 對網站發請求 + `curl <url> -I` 回應header + `curl --trace-ascii out <url>` 列出内容 ### ftp + 檔案傳輸協定 + 使用 20 port 跟 21 port (固定傳指令) + 明文 + http://ftp.ncnu.edu.tw/ `vim ~/.ssh/config` ### sftp + 加密過的檔案傳輸協定 + 使用方式基本上跟ftp相同 + `sftp <ip/domain>` + `l<command>`:sftp連上之後想查看本地狀況,在每個command前面加`l`即可 + `put <Filename>` 上傳到遠端 + `get <Filename>` 下載到本地 :::warning 連線了才能打上指令 ::: [差異備份 vs 增量備份](https://ithelp.ithome.com.tw/questions/10089153) ### rsync https://zh.wikipedia.org/wiki/Rsync ``` -a 目錄底下檔案一齊上傳,並保留編輯日期 -v 詳細資訊 -r recursive -e 指定port -z compress -h human readable ``` `rsync -vzh <file> <username>@<ip/domain>:<remote path> <local path>`:下載檔案 `rsync -avzh <file> <username>@<ip/domain>:<localpath> <remote path>`:上傳檔案 ### rclone + 儲存裝置供應商 + [設定 教學](https://blog.csie.io/rclone-loves-google-drive.html) ### Let's Encrypt `sudo certbot --nginx` https://letsencrypt.org/ Https 's' 的安全憑證 ### Wildcard https://en.wikipedia.org/wiki/Wildcard_certificate 【坑】要先申請wildcard 再申請安全憑證(之前申請的要全砍掉)

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