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Setting Firewall rules - from Google Cloud Console vs from within Instance


Setting Firewall rules - from Google Cloud Console vs from within Instance

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Setting Firewall rules - from Google Cloud Console vs from within Instance
Tag : networking , By : Grant
Date : December 05 2020, 12:18 PM

This might help you I have a google cloud Windows VM which is hosting a QlikSense server. The server should be accessible using the VM's External IP using https i.e. port 443 as this is one of the default rules in Google Firewall rules. But it is not. It only works when I set the Inbound rule for to allow TCP:443 from within the instance (from Windows Firewall settings). My question is ,
Why do I need to set up a firewall from within the instance?

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Google Cloud Platform Firewall Rules PORT


Tag : development , By : Steve Jones
Date : March 29 2020, 07:55 AM
should help you out You configuration looks correct - I would rather suspect that you have no listener on port 7772, and this is why your open port tester reports the port as closed.
Without changing your configuration - test port 7772 with your open port tester, then port 7773. The test for port 7772 should report that it is closed more quickly than the test for port 7773 [ this is because port 7772 immediately returns RST in response to SYN, because there is no listener, whereas the firewall silently drops SYNs to port 7773 with no response ]

Can't connect to port 80 on Google Cloud Compute instance despite firewall rule


Tag : development , By : KT.
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Ensure that VM level firewall is not intervening. For example, Container-Optimized OS is a bit special in comparison to all other default images:

node inspect on google cloud console setup firewall


Tag : node.js , By : cmhudson
Date : March 29 2020, 07:55 AM
will help you If found it myself. I have to use an ssh tunnel. https://nodejs.org/en/docs/guides/debugging-getting-started/#enabling-remote-debugging-scenarios
    $ node --inspect server.js
    $ ssh -L 9221:localhost:9229 user@remote.example.com

Is there a way to create firewall rules for my Google Cloud Functions HTTP endpoints?


Tag : google-cloud-platfor , By : user183442
Date : March 29 2020, 07:55 AM
this will help More than firewall rules what you should be looking at is to authenticate your requests to your Cloud Functions with Access Tokens.
Here there is a good example on how to do this.
jordim@yrmv-191108:~$ export BUCKET=auth-123
jordim@yrmv-191108:~$ export PROJECT=yrmv-191108
jordim@yrmv-191108:~$ gcloud iam service-accounts create alpha-account --
display-name "Account 1"
jordim@yrmv-191108:~$ gcloud iam service-accounts create beta-account --display-name "Account 2"
Created service account [beta-account].
jordim@yrmv-191108:~/cloudfunction$ cat > package.json
{
  "dependencies": {
    "googleapis": "21.2"
  }
}
const Google = require('googleapis');
const BUCKET = 'auth-123'; // Replace with name of your bucket

/**
 * Cloud Function.
 *
 * @param {Object} req Cloud Function request context.
 * @param {Object} res Cloud Function response context.
 */
exports.secureFunction = function secureFunction(req, res) {
    var accessToken = getAccessToken(req.get('Authorization'));
    var oauth = new Google.auth.OAuth2();
    oauth.setCredentials({access_token: accessToken});

    var permission = 'storage.buckets.get';
    var gcs = Google.storage('v1');
    gcs.buckets.testIamPermissions(
        {bucket: BUCKET, permissions: [permission], auth: oauth}, {},
        function (err, response) {
            if (response && response['permissions'] && response['permissions'].includes(permission)) {
                authorized(res);
            } else {
                res.status(403).send("The request is forbidden.");
            }
        });



function authorized(res) {
            res.send("The request was successfully authorized.");
            // The code to execute goes here! :)
}
}


function getAccessToken(header) {
    if (header) {
        var match = header.match(/^Bearer\s+([^\s]+)$/); //We are looking for an HTTP request with the content Bearer: + a token
        if (match) {
            return match[1];
        }
    }

    return null;
}
jordim@yrmv-191108:~/cloudfunction$ gcloud beta  functions deploy secureFunction --stage-bucket $BUCKET --trigger-http
   jordim@yrmv-191108:~/cloudfunction$ gcloud iam service-accounts keys create --iam-account alpha-account@$PROJECT.iam.gserviceaccount.com ./alpha-account.json
    jordim@yrmv-191108:~/cloudfunction$ export ALPHA_ACCOUNT_TOKEN=$(GOOGLE_APPLICATION_CREDENTIALS=./alpha-account.json gcloud auth application-default print-access-token)


jordim@yrmv-191108:~/cloudfunction$ gcloud iam service-accounts keys create --iam-account beta-account@$PROJECT.iam.gserviceaccount.com ./beta-account.json
created key [4a9251d7611e74da8b4565657b52b7c940606630] of type [json] as [./beta-account.json] for [beta-account@yrmv-191108.iam.gserviceaccount.com]
jordim@yrmv-191108:~/cloudfunction$ export BETA_ACCOUNT_TOKEN=$(GOOGLE_APPLICATION_CREDENTIALS=./beta-account.json gcloud auth application-default print-access-token)
jordim@yrmv-191108:~/cloudfunction$ gsutil acl ch -u alpha-account@$PROJECT.iam.gserviceaccount.com:R gs://auth-123
jordim@yrmv-191108:~/cloudfunction$ curl https://us-central1-yrmv-191108.cloudfunctions.net/secureFunction -H "Authorization: Bearer $ALPHA_ACCOUNT_TOKEN"
The request was successfully authorized.

jordim@yrmv-191108:~/cloudfunction$ curl https://us-central1-yrmv-191108.cloudfunctions.net/secureFunction -H "Authorization: Bearer $BETA_ACCOUNT_TOKEN"
The request is forbidden

What firewall rules and instance specs are needed to run a Flask app on google compute engine?


Tag : python , By : Ram
Date : January 02 2021, 06:48 AM
wish of those help
What is the best instance type to use, is a g1-small sufficient?
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