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So i'm trying to get a certificate with certbot. My website is available from the internet (www.alces.info) and everything work well except the https of course. when i try to get the certificat with the command below, i get an output mentioning a wrong IP address, whatismyip is currently telling me: 174.93.180.140 but thats not what certbot output. in the no-ip portal, the DNS hostname A is to the correct ip address (like what whatismyip says) Also i must say i'm unsure if i'm doing something wrong, should i request a certificate only for the www, or a wildcard like i tried in the command listed below? currently the domain alone only go to nginx default page, i only setup the www virtual host My domain is: alces.info I ran this command: certbot --nginx -d alces.info --agree-tos It produced this output: Saving debug log to /var/log/letsencrypt/letsencrypt.log Plugins selected: Authenticator nginx, Installer nginx Requesting a certificate for www.alces.info Performing the following challenges: http-01 challenge for www.alces.info Waiting for verification... Challenge failed for domain www.alces.info http-01 challenge for www.alces.info Certbot failed to authenticate some domains (authenticator: nginx). The Certificate Authority reported these problems: Domain: www.alces.info Type: dns Detail: DNS problem: looking up A for www.alces.info: DNSSEC: DNSKEY Missing: validation failure <www.alces.info. A IN>: No DNSKEY record from 204.16.254.53 for key alces.info. while building chain of trust; DNS problem: looking up AAAA for www.alces.info: DNSSEC: DNSKEY Missing: validation failure <www.alces.info. AAAA IN>: No DNSKEY record from 194.62.181.53 for key alces.info. while building chain of trust Hint: The Certificate Authority failed to verify the temporary nginx configuration changes made by Certbot. Ensure the listed domains point to this nginx server and that it is accessible from the internet. Cleaning up challenges Some challenges have failed. Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details. My web server is (include version): nginx 1.22.1 The operating system my web server runs on is (include version): debian 12 My hosting provider, if applicable, is: self hosted, no-ip.com domain provider I can login to a root shell on my machine (yes or no, or I don't know): yes I'm using a control panel to manage my site (no, or provide the name and version of the control panel): no The version of my client is (e.g. output of `certbot --version` or `certbot-auto --version` if you're using Certbot): certbot 2.1.0

A lightweight Dart package that helps you discover your IP address and retrieve detailed geolocation information. This package integrates with Ipify for IP address lookup and IP2Location for geolocation data.

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在台灣的家庭與工作網路中，快速掌握iPhone的IP地址能提升排錯與資安管理效果。局域網IP：設定&gt;無線網路&gt;已連線網路，查看IP位址。外部IP：開Safari，輸入ipinfo.io、whatismyip即可顯示。建議定期檢查路由器DHCP設定，避免位址衝突，強化網路安全。若遇動態IP變動，請重新查詢並更新裝置清單，避免連線困難。