amazon-ec2

问题 I am working with win 7 and git bash as well as an amazon EC2 instance. I tried to log into my instance: $ ssh -i f:mykey.pem ubuntu@ec2-52-10-**-**.us-west-2.compute.amazonaws.com @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also

问题 I'm currently using the following CLI command to get the instance PublicIPAddress and LaunchTime for a given instance Name tag, 'myInstanceName': aws ec2 describe-instances --filters 'Name=tag:Name,Values=myInstanceName' \ --region us-east-1 \ --query 'Reservations[*].Instances[*].{PublicIpAddress: PublicIpAddress, LaunchTime: LaunchTime}' This results in the following: [ { "LaunchTime": "2019-01-25T11:49:06.000Z", "PublicIpAddress": "11.111.111.11" } ] This is fine, but if there are two

问题 I'm currently using the following CLI command to get the instance PublicIPAddress and LaunchTime for a given instance Name tag, 'myInstanceName': aws ec2 describe-instances --filters 'Name=tag:Name,Values=myInstanceName' \ --region us-east-1 \ --query 'Reservations[*].Instances[*].{PublicIpAddress: PublicIpAddress, LaunchTime: LaunchTime}' This results in the following: [ { "LaunchTime": "2019-01-25T11:49:06.000Z", "PublicIpAddress": "11.111.111.11" } ] This is fine, but if there are two

问题 I'm currently using the following CLI command to get the instance PublicIPAddress and LaunchTime for a given instance Name tag, 'myInstanceName': aws ec2 describe-instances --filters 'Name=tag:Name,Values=myInstanceName' \ --region us-east-1 \ --query 'Reservations[*].Instances[*].{PublicIpAddress: PublicIpAddress, LaunchTime: LaunchTime}' This results in the following: [ { "LaunchTime": "2019-01-25T11:49:06.000Z", "PublicIpAddress": "11.111.111.11" } ] This is fine, but if there are two

问题 I am getting issues while setup and run the docker instance on my local system with Ruby on Rail. Please see my docker configuration files:- Dockerfile FROM ruby:2.3.1 RUN useradd -ms /bin/bash web RUN apt-get update -qq && apt-get install -y build-essential RUN apt-get -y install nginx RUN apt-get -y install sudo # for postgres RUN apt-get install -y libpq-dev # for nokogiri RUN apt-get install -y libxml2-dev libxslt1-dev # for a JS runtime RUN apt-get install -y nodejs RUN apt-get update #

问题 Just as background, I have a react app sitting on a remote EC2 Ubuntu instance. The same server also runs a Go app listening on port 8080 (port has been opened to everyone from the Security settings). I am trying to make a request with Fetch API, from the React app, as follows: var bearer = 'Bearer ...' return fetch('http://localhost:8080/home', { headers: new Headers({ 'Authorization': bearer }) }) In the console, from both Chrome and Firefox, I am getting: TypeError: NetworkError when

问题 Just as background, I have a react app sitting on a remote EC2 Ubuntu instance. The same server also runs a Go app listening on port 8080 (port has been opened to everyone from the Security settings). I am trying to make a request with Fetch API, from the React app, as follows: var bearer = 'Bearer ...' return fetch('http://localhost:8080/home', { headers: new Headers({ 'Authorization': bearer }) }) In the console, from both Chrome and Firefox, I am getting: TypeError: NetworkError when

问题 I am currently overseas and I am trying to connect to my EC2 instance through ssh but I am getting the error ssh: connect to host ec2-34-207-64-42.compute-1.amazonaws.com port 22: Connection refused I turned on my vpn to New York but still nothing changes. What reasons could there be for not being able to connect to this instance? The instance is still running and serving the website but I am not able to connect through ssh. Is this a problem with the wifi where I am staying or with the

问题 I am currently overseas and I am trying to connect to my EC2 instance through ssh but I am getting the error ssh: connect to host ec2-34-207-64-42.compute-1.amazonaws.com port 22: Connection refused I turned on my vpn to New York but still nothing changes. What reasons could there be for not being able to connect to this instance? The instance is still running and serving the website but I am not able to connect through ssh. Is this a problem with the wifi where I am staying or with the

问题 We've set up Airbnb/Apache Airflow for our ETL using LocalExecutor , and as we've started building more complex DAGs, we've noticed that Airflow has starting using up incredible amounts of system resources. This is surprising to us because we mostly use Airflow to orchestrate tasks that happen on other servers, so Airflow DAGs spend most of their time waiting for them to complete--there's no actual execution that happens locally. The biggest issue is that Airflow seems to use up 100% of CPU