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Inaccessible server - reachability tests passed

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Hello all,

I am using running an EC2 instance and have suddenly lost ability to connect to it. I have rebooted and restarted, and I have tried SSH, EC2 instance connect, and session manager but have had no success with reaching this server. The default system and instance reachability tests are both passing... any ideas?

Argomenti
Computazionali
Tag
Amazon EC2Gestione delle sessioni
Lingua
English
Parth
posta un mese fa128 visualizzazioni
1 Risposta
1
Risposta accettata

Hello.

It may not be available depending on the instance type, but have you tried connecting via serial console?
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-serial-console-prerequisites.html

You may also want to check the EC2 system log and check for any errors using the steps in the document below.
I think there is another way to take a snapshot and recreate EC2.
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/troubleshoot-unreachable-instance.html#instance-console-console-output

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ESPERTO
Riku_Kobayashi
con risposta un mese fa
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Oleksii Bebych
verificato un mese fa
  • Parth
    un mese fa

    I was originally on free tier but have made the plunge to a t3, which has the serial console available. There was a faulty program consuming all the memory and causing the ssh to time out - it is now resolved. Thank you for the tip!

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