Questions tagged [amazon-web-services]

Amazon Web Services (AWS) delivers a set of services that together form a reliable, scalable, and inexpensive computing platform "in the cloud". If you have a question about a specific web service, consider asking on its tag, e.g., amazon-ec2.

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Which EC2 Instance to hash a large amount of 25gb files

I have an EBS (elastic block storage) on AWS with large amount of 25GB files (1000). I would like to calculate a SHA256 sum for each file. Which EC2 instance would be the best for such task (cpu ...
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858 views

How can I determine if it cost-effective to move my site to cloud solution?

I have a large, busy site; it currently runs completely on a colocated server that I rent each month for ~$700. It has three parts that I think I could carve off to a cloud solution: Media (image/...
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1answer
21 views

how to modify zone file in AWS?

If a domain was purchased from a registrar A but the DNS settings for that registrar point to Amazon, where do I edit the zone file in AWS? Do I have to create a new Hosted Zone or edit a zone file ...
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15 views

Can i make client 1 in server 1 talk (voice and video chat) to client 2 in server 2 using REDIS?

we are trying to build a chat solution where people can voice chat and video chat and message each other, we are thinking of using aws loadbalancing and auto-scaling, the problem here is that each ...
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2answers
31 views

powershell user data script run on restart of the Windows instance

We have windows servers that do application initialization which takes almost 3-4 hours for servers to be online. So to avoid downtime we use autoscaling group lifecycle hooks. Now we want to shut ...
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29 views

Issues connecting to aws ec2 instance behind eip

I have an ec2 instance on which I'm running a dev server via parcel index.html --host 0.0.0.0 that ultimately listens on 0.0.0.0:1234. Before creating and associating an eip to my instance, I wanted ...
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29 views

AWS: ELB Listener RANDOMLY “forgets” its SSL certificate and reverts to TCP — taking the site offline. We're considering leaving AWS for this

I have been banging my head for months over this, no answer, no info, no "cure". my AWS ELB listener "randomly" forgets its SSL settings and reverts to this on its own, at random ...
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1answer
25 views

Site stopped working after restarting EC2 instance, shows this site can't be reached

My wordpress blog site stopped working after I restarted my EC2 instance in AWS.. What could be the reason behind this ? I cannot access mysite.com/wp-admin as well.. Does anyone know how to fix this ...
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Can't deploy same lambda in multiple regions from s3 bucket

We are deploying a lambda using CloudFormation SAM templates. We would like to package the lambda into an S3 bucket, then deploy the AWS::Serverless::Function in multiple regions. However, lambda code ...
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0answers
30 views

UDP-Packets seem to get lost in IPsec tunnel to AWS cloud

Use case: IOT-device connected through AWS cloud The IOT-device is behind a router that sends all traffic through aws cloud. The IOT-server can not be configured and thus is not part of the AWS cloud ...
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1answer
69 views

OperationalError: could not connect to server: Operation timed out - when trying to change database from sqlite to postresql

I have upgraded my RDS amazon db instance (postgresql database ) from micro to small. Although it says that it is available on the amazon console, I keep getting the error (psycopg2.OperationalError) ...
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364 views

Intermittent SSL connection failure for the whitelisted domain in squid proxy

I have followed https://aws.amazon.com/blogs/security/how-to-add-dns-filtering-to-your-nat-instance-with-squid/ to setup Squid NAT servers on AWS, and allowed multiple domains in the whitelist. ...
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0answers
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AWS RDS mysql.rds_set_external_master remains disabled after setting autocommit to 1

The goal is to create a master-master replication consisting of two RDS MySQL 5.6 instances, db0 and db1. I orientate myself by this article. So far, I have created db1 as a read-replica of db0 and ...
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Resizing images using AWS Lambda - issue

I'm trying to resize images automatically using Amazon S3/Lambda. The problem is I cannot get any connection to Amazon S3 buckets while creating a Lambda function. Creating a new blank function in ...
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1answer
53 views

Unable to resolve postfix connection timed out on all outgoing [closed]

I have been beating my head over this for a while now. I've been all over the internet and have read this post and this post regarding similar issues. However I cannot seem to resolve this issue at ...

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