--- tags: Linux2020 高效能網頁伺服器 tiles: 高效能網頁伺服器 - 事前準備 --- # 高效能網頁伺服器 contributed by < `YLowy` > # 事前準備 ## 1. 下載映像檔 使用 [Ubuntu 20.10 (Groovy Gorilla)](http://cdimage.ubuntu.com/ubuntu/releases/20.10/release/) ![](https://i.imgur.com/6eBqWxG.png) 這邊我下載的是 `Raspberry Pi Generic (64-bit ARM) preinstalled server image For modern Raspberry Pi boards (Pi 2, Pi 3 and Pi 4)`. ## 2. 將映像檔載入 Micro SD Card 下載燒錄軟體[balenaEtcher](https://www.balena.io/etcher/) ![](https://i.imgur.com/xgWoq9q.png) ![](https://i.imgur.com/hPSKQjK.png) ![](https://i.imgur.com/9Pbv5lW.png) ![](https://i.imgur.com/ufuOntZ.png) ## 3. 以映像檔開機樹梅派 設定新密碼 原始預設密碼 : login as: ubuntu password: ubuntu ## 4. 遠端連線到此電腦 用 putty 連進此樹梅派 ### 修改成為固定 IP 以方便連線 先在此電腦下載 net-tools 以方便先觀察目前 IP 由於目前與實驗室申請 固定 IP，故先對此進行修改，之後可以透過 putty 對此進行 SSH 操作 先以 `ifconfig` 確認是否有取得 DHCP 給定 IP 生成設定 config 檔案 50-cloud-init.yaml `sudo netplan generate` 對於 50-cloud-init.yaml 寫入 IP 設定 ``` ubuntu@ubuntu:~$ cd /etc/netplan/ ubuntu@ubuntu:/etc/netplan$ ls 50-cloud-init.yaml ubuntu@ubuntu:/etc/netplan$ cat 50-cloud-init.yaml # This file is generated from information provided by the datasource. Changes # to it will not persist across an instance reboot. To disable cloud-init's # network configuration capabilities, write a file # /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following: # network: {config: disabled} network: ethernets: eth0: addresses: [192.168.79.95/24] gateway4: 192.168.79.253 nameservers: addresses: [8.8.8.8,8.8.4.4] dhcp4: no version: 2 ``` ### 安裝 OpenSSH Server 更新 apt-get `sudo apt-get upgrade` `sudo apt-get update` 下載 openSSH 套件 `sudo apt-get install -y openssh-server` 以確認 SSH 是已經開啟狀態 `sudo service ssh status` ``` ubuntu@ubuntu:/etc/netplan$ sudo service ssh status ● ssh.service - OpenBSD Secure Shell server Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled) Active: active (running) since Wed 2020-11-25 09:05:09 UTC; 2h 4min ago Docs: man:sshd(8) man:sshd_config(5) Process: 1799 ExecStartPre=/usr/sbin/sshd -t (code=exited, status=0/SUCCESS) Main PID: 1811 (sshd) Tasks: 1 (limit: 4434) CGroup: /system.slice/ssh.service └─1811 sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups Nov 25 09:05:09 ubuntu systemd[1]: Starting OpenBSD Secure Shell server... Nov 25 09:05:09 ubuntu sshd[1811]: Server listening on 0.0.0.0 port 22. Nov 25 09:05:09 ubuntu sshd[1811]: Server listening on :: port 22. Nov 25 09:05:09 ubuntu systemd[1]: Started OpenBSD Secure Shell server. Nov 25 09:08:20 ubuntu sshd[1883]: Accepted password for ubuntu from 192.168.79.85 port 7044 ssh2 Nov 25 09:08:20 ubuntu sshd[1883]: pam_unix(sshd:session): session opened for user ubuntu by (uid=0) Nov 25 11:03:33 ubuntu sshd[2097]: Accepted password for ubuntu from 192.168.79.85 port 8264 ssh2 Nov 25 11:03:33 ubuntu sshd[2097]: pam_unix(sshd:session): session opened for user ubuntu by (uid=0) ``` 透過 PuTTY 嘗試連線 ``` login as: ubuntu ubuntu@192.168.79.95's password: Welcome to Ubuntu 20.10 (GNU/Linux 5.8.0-1006-raspi aarch64) ``` 以上可以成功連線至遠端 Raspberry Pi ## Raspberry Pi 架設 Ｗebserver 本篇以 clock 進行操作 Clone the repository ```shell $ git clone git://github.com/lpereira/lwan $ cd lwan ``` Create the build directory ```shell $ mkdir build $ cd build ``` Build Lwan ```shell $ make ``` 接下對於進行測試 `src/samples/clock/clock` 進入所建立的 clock 檔案目錄下，按照文件所述建立 `clock.conf` 及 `wwwroot` 資料夾 ### clock.conf `clock.conf` 內容使用 `lwan.conf` 預設內容 ```shell # Timeout in seconds to keep a connection alive. keep_alive_timeout = 15 # Set to true to not print any debugging messages. (Only effective in # release builds.) quiet = false # Set SO_REUSEPORT=1 in the master socket. reuse_port = false # Value of "Expires" header. Default is 1 month and 1 week. expires = 1M 1w # Number of I/O threads. Default (0) is number of online CPUs. threads = 0 # Disable HAProxy's PROXY protocol by default. Only enable if needed. proxy_protocol = false # Enable straitjacket by default. The `drop_capabilities` option is `true` # by default. Other options may require more privileges. straitjacket listener *:8080 { serve_files / { path = ./wwwroot # When requesting for file.ext, look for a smaller/newer file.ext.gz, # and serve that instead if `Accept-Encoding: gzip` is in the # request headers. serve precompressed files = true } } ``` ### wwwroot 目錄 雖然這邊沒用到，但是套用在原先 `lwan.conf` 檔案所需求的目錄 ``` mkdir wwwroot ``` ### run clock 執行在 sample 中的 clock 執行檔 ，使其可以不斷接受服務 ``` ubuntu@ubuntu:~/lwan/lwan/build/src/samples/clock$ ./clock Loading configuration file: clock.conf Using 4 threads, maximum 262144 sockets per thread Listening on http://0.0.0.0:8080 Ready to serve ``` ### 對於所架設 IP 之掃描 可以觀察對於一開始遠端 SSH (22) port 以及後來 https (8080) port 的開啟 ``` ylowy@YYCs-MacBook-Air ~ % nmap 192.168.79.95 Starting Nmap 7.91 ( https://nmap.org ) at 2020-11-26 16:41 CST Nmap scan report for 192.168.79.95 Host is up (0.0028s latency). Not shown: 998 closed ports PORT STATE SERVICE 22/tcp open ssh 8080/tcp open http-proxy Nmap done: 1 IP address (1 host up) scanned in 0.22 seconds ``` ### 對於該 server 進行連線 在網頁瀏覽器中輸入 `192.168.79.95:8080` ![](https://i.imgur.com/dcehnJh.png) 下一篇 [lwan 的 Hello World 簡介](https://hackmd.io/@YLowy/rJBWnxejD)
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