vault backup: 2024-01-12 13:01:20

00. Inbox/樹莓派/00. 樹莓派.canvas

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+{
+	"nodes":[
+		{"id":"e94c9e71b9aeaa89","type":"group","x":440,"y":-360,"width":400,"height":900,"label":"設定"},
+		{"id":"d624199752cf24de","type":"text","text":"![[更新與安裝工具]]","x":460,"y":-340,"width":360,"height":120},
+		{"id":"a63a5baed201beda","type":"text","text":"![[設定日誌大小]]","x":460,"y":160,"width":360,"height":180},
+		{"id":"f210470376a4829d","type":"text","text":"![[設定Cloudflare DDNS]]","x":460,"y":370,"width":360,"height":150},
+		{"id":"6e59f6b9f36b24e2","type":"text","text":"![[安裝]]","x":-80,"y":-37,"width":383,"height":177},
+		{"id":"bc030994aafc5a3b","type":"text","text":"![[bashrc]]","x":460,"y":-37,"width":360,"height":177},
+		{"id":"6875474760fafe7c","type":"text","text":"![[raspi-config]]","x":460,"y":-200,"width":360,"height":140}
+	],
+	"edges":[
+		{"id":"9683c15c63c167c0","fromNode":"6e59f6b9f36b24e2","fromSide":"right","toNode":"e94c9e71b9aeaa89","toSide":"left"},
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+	]
+}

00. Inbox/樹莓派/bashrc.md

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+## `~/.bashrc`
+```bash
+alias ll='ls -al'
+alias pwoff='sudo shutdown -h now'
+```

00. Inbox/樹莓派/ddns.sh.md

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+## `/home/awin/script/ddns.sh`
+```bash
+#!/bin/bash
+CF_ACCESS_TOKEN=033xQP4_ZpTq3sSkeftz5J6BWw_R9eoDNTba7zfH
+CF_ZONE_ID=1d6a623d1780c31544fc86f718dac16e
+URLS=('awin.one'
+      'blog.awin.one'
+      'ftp.awin.one'
+      'git.awin.one',
+      'storj.awin.one')
+CF_RECORD_IDS=('d67b2a1b3d7cd520b8e8dad2cb522460'
+               '69dcc0bd619b1a3d4a71458faff2aa50'
+               'bd397d9779d42c0b92c9c9c47b765769'
+               '4eccb48e85f2daa8fefeb92c8cb4b4ee'
+               '216d631bc860c6a11b62e3a1003f3e3e')
+
+INTERNET_IP=`curl -s http://ipv4.icanhazip.com`
+INTERFACE_IP=`ip address show ppp0 | grep ppp0 | grep global | awk '{print$2}'`
+DNS_RECORD_IP=`dig +short "${URLS[0]}" | grep -Eo '([0-9]{1,3}\.){3}[0-9]{1,3}' | awk 'NR==1{print}'`
+NOW_TIME=`date`
+
+if [ "$INTERNET_IP" != "$DNS_RECORD_IP" ]
+then
+    echo "Renew IP: ${DNS_RECORD_IP} to ${INTERNET_IP}"
+    echo "${NOW_TIME}: Renew IP: ${DNS_RECORD_IP} to ${INTERNET_IP}" > /home/awin/log/ddns.log
+    for ((i = 0; i < ${#URLS[@]}; i++)); do
+        curl -X PUT "https://api.cloudflare.com/client/v4/zones/${CF_ZONE_ID}/dns_records/${CF_RECORD_IDS[$i]}" \
+             -H "Authorization: Bearer ${CF_ACCESS_TOKEN}" \
+             -H "Content-Type: application/json" \
+             --data '{"type":"A","name":"'${URLS[$i]}'","content":"'${INTERNET_IP}'","ttl":120,"proxied":false}'
+    done
+else
+  echo "No change: ${INTERNET_IP}"
+  echo "${NOW_TIME}: No change: ${INTERNET_IP}" > /home/awin/log/ddns.log
+fi
+```
+
+### 參考
+- [5 分鐘整合 Cloudflare API 實做 Cloudflare DDNS 動態 IP 對應網址](https://blog.toright.com/posts/7333/cloudflare-ddns)
+- [自架 DDNS 教學：用 Cloudflare API 達成多域名同步更新！ | by Rex | Medium](https://blog.rexyuan.com/%E7%94%A8-cloudflare-dns-api-%E4%BE%86%E9%81%94%E6%88%90-ddns-adaee3c5a84d)

00. Inbox/樹莓派/raspi-config.md

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+## `raspi-config`
+1. 打開ssh與vnc
+2. 開機進入console

00. Inbox/樹莓派/安裝.md

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+1. 到[官網](https://www.raspberrypi.com/software/)下載`imager`
+2. 記得在`imager`裡面設定
+    1. ssh public key
+    2. WIFI
+    3. account/password

00. Inbox/樹莓派/更新與安裝工具.md

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+1. `sudo apt update`
+2. `sudo apt upgrade -y`
+3. `sudo apt install dnsutils`

00. Inbox/樹莓派/設定Cloudflare DDNS.md

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+用[[crontab]]設定[[ddns.sh]]
+1. `crontab -e`
+2. 加入 `*/15 * * * *  /home/awin/script/ddns.sh`

00. Inbox/樹莓派/設定日誌大小.md

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+打開`/etc/systemd/journald.conf`
+- `SystemMaxUse=1G`
+- `RuntimeMaxUse=100M`
+
+[[journalctl]]