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toff63/eureka-dns-resolution.md

Last active October 20, 2015 20:55
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eureka-dns-resolution.md

Client config

eureka.shouldUseDns=true
eureka.eurekaServer.domainName=mydomain.com
archaius.deployment.region=us-west-2

Troubleshoot

Retrieve list of eureka nodes:

dig -t txt txt.us-west-2.mydomain.com
;; QUESTION SECTION:
;txt.us-west-2.mydomain.com. IN TXT

;; ANSWER SECTION:
txt.us-west-2.txt.us-west-2.mydomain.com. 60 IN TXT "us-west-2a.txt.us-west-2.mydomain.com" "us-west-2b.txt.us-west-2.mydomain.com" "us-west-2c.txt.us-west-2.mydomain.com"

Retrieve EC2 public DNS

dig -t txt txt.us-west-2a.txt.us-west-2.mydomain.com

;; QUESTION SECTION:
;txt.us-west-2a.txt.us-west-2.mydomain.com. IN TXT

;; ANSWER SECTION:
txt.us-west-2a.txt.us-west-2.mydomain.com. 53 IN TXT "ec2-57-11-164-101.us-west-2.compute.amazonaws.com"

Now you can confirm that this EC2 actually exists in your AWS console.

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