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There is no way to access the Lightsail instance, such as ssh, http, etc be not accessible by any means "UPSTREAM_NOT_FOUND [519]"

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I was using Lightsail to deploy a simple discord bot, but my discord bot policy changed, so I haven't maintained it for a while (about a year) I tried accessing the instance because I wanted to save the discord bot for the first time in a while, but all the methods failed. Below are the methods I tried.

  1. Access to webssh provided by Lightsail - Failed 여기에 이미지 설명 입력

  2. Take the most recent snapshot and create a new instance - Failed

  3. Access the IP directly from the browser - Failed

I tried these three methods, but I couldn't access them all As far as I'm concerned, the instance itself is not running.

I'd appreciate it if you could tell me how to solve it

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choseongwon
已提问 10 个月前258 查看次数
1 回答
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Are ssh and http packets allowed in the Lightsail firewall?
Also, do you get any error messages when you access the site?
https://lightsail.aws.amazon.com/ls/docs/en_us/articles/understanding-firewall-and-port-mappings-in-amazon-lightsail

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Riku_Kobayashi
已回答 10 个月前
  • choseongwon
    10 个月前

    Network settings are set to allow all ports. Also, when accessing with a browser, you cannot access the IP itself I corrected the error picture in the question

  • Riku_Kobayashi 专家
    10 个月前

    Thanks for the reply. The following document provides general troubleshooting instructions when that error message occurs. https://repost.aws/knowledge-center/lightsail-resolve-ssh-console-errors
    Perhaps the SSH service is down. So, please set the following command in the launch script when restoring from a snapshot.

    sudo ufw disable
sudo iptables -F
sudo mv /etc/hosts.deny /etc/hosts.deny_backup
sudo touch /etc/hosts.deny
sudo systemctl enable sshd
sudo systemctl restart sshd

    Please check the above document once for other troubleshooting methods.

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