Amazon IP Ranges

Need to get IP ranges for whitelisting AWS? Here is a handy service.

https://ip-ranges.amazonaws.com/ip-ranges.json

Installing Amazon Web Service Plugin for ElasticSearch

https://www.elastic.co/guide/en/elasticsearch/plugins/current/cloud-aws.html

The Amazon Web Service (AWS) Cloud plugin uses the AWS API for unicast discovery, and adds support for using S3 as a repository for Snapshot/Restore.

Installationedit

This plugin can be installed using the plugin manager:

sudo bin/plugin install cloud-aws

-> Installing repository-s3...
Trying https://download.elastic.co/elasticsearch/release/org/elasticsearch/plugin/repository-s3/2.3.1/repository-s3-2.3.1.zip ...
ERROR: failed to download out of all possible locations..., use --verbose to get detailed information
# bin/plugin install cloud-aws
-> Installing cloud-aws...
Trying https://download.elastic.co/elasticsearch/release/org/elasticsearch/plugin/cloud-aws/2.3.1/cloud-aws-2.3.1.zip ...
Downloading .............................................................................................................................................................................................................................................................................................................................................DONE
Verifying https://download.elastic.co/elasticsearch/release/org/elasticsearch/plugin/cloud-aws/2.3.1/cloud-aws-2.3.1.zip checksums if available ...
Downloading .DONE
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@     WARNING: plugin requires additional permissions     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
* java.lang.RuntimePermission getClassLoader
See http://docs.oracle.com/javase/8/docs/technotes/guides/security/permissions.html
for descriptions of what these permissions allow and the associated risks.

Continue with installation? [y/N]y
Installed cloud-aws into /usr/share/elasticsearch/plugins/cloud-aws
# service elasticsearch restart
[....] Stopping Elasticsearch Server:

Spring Boot CORS Not Working?

For the life of me I could not get the CORS Configuration for Spring Boot to write the needed headers to the response. I wrote my own filter that could read the CORS Config and used it in WebMVC Configuration to solve it.

Find Recursively With LS

This should probably be turned into a script.

Rsync Without Git

Just add an explicit exclude for .git:

rsync -a --exclude='.git/' --include='*.c' --include='*.sh' --include='*/' --exclude='*' ~/c/ ~/Dropbox/Public/c

Another option is to create ~/.cvsignore containing the following line along with any other directories you'd like to exclude:

.git/