Web server for Web shell history
This is the Web server side of archelon. Once it is all configured and wired up to archelonc it can be used to store your shell history from all your hosts.
It is a simple Flask app that is generally designed to be wired up to an elasticsearch host to provide a nicely indexed shell history, and should be deployable for free on heroku using an elasticsearch addon.
Installation and Configuration
pip install archelond
Security is obviously important for shell history, and to setup authentication we use basic authentication using apache htpasswd files as the user database. To add one for yourself and configure archelond to use it, run something like:
htpasswd -c ~/.htpasswd username export ARCHELOND_HTPASSWD_PATH=~/.htpasswd
After that minimal setup we can try things out with just a simple command of:
Which will fire up the debug/development server using an in memory bash history data store that is very forgetful. Once it is up, you should be able to go http://localhost:8580/, login with the username and password you created in your htpasswd file, and see a lovely Web interface for searching and deleting your shell history similar to:
. It also provides a simple button to reveal the token you need in archelonc to connect the two together. To access the RESTful API side directly, you can check out the sample commands by visiting http://localhost:8580/api/v1/history or get your token for use with archelonc http://localhost:8580/api/v1/token.
Wiring Up to Elasticsearch
In order to have your history survive start ups we can use Elasticsearch. You can either install it locally, or grab it from an add-on on Heroku. Once you have the connection URL, we just need to add a couple environment variables to point at the service and set the storage provider class with something like:
export ARCHELOND_ELASTICSEARCH_URL='http://localhost:9200' export ARCHELOND_ELASTICSEARCH_INDEX='history' export ARCHELOND_DATABASE='ElasticData'
The index can be changed as desired, but it is the index in elasticsearch that will be used to store the history.
archelond with the ElasticData can support multiple users as it uses the user in the document type
Running in Production
Running the archelond command is good for testing out, but to run it in production you will want to run it through a proper wsgi application server. As an example, we’ve added uwsgi in the requirements and it can be run in production with something like:
uwsgi --http :8580 -w archelond.web:app
and then a Web server like nginx proxying over https in order to further secure your shell history.
Running in Heroku
For heroku, it is very easy to setup the application part. Just create a requirements.txt file in the root of your repo with at least one line:
Setup a Procfile with:
web: uwsgi uwsgi.ini
and a uwsgi.ini that looks something like:
[uwsgi] http-socket = :$(PORT) master = true processes = 10 die-on-term = true module = archelond.web:app memory-report = true
You also need to setup your secrets using heroku config:set commands. The vars that need to be set minimally for an elasticsearch version are:
ARCHELOND_DATABASE="ElasticData" ARCHELOND_ELASTICSEARCH_INDEX="my_index" ARCHELOND_ELASTICSEARCH_URL="http://example.com/elastic_search" ARCHELOND_FLASK_SECRET="a_very_long_randomized_string" ARCHELOND_HTPASSWD="username:hashfromhtpasswd" ARCHELOND_HTPASSWD_PATH="htpasswd"
I had to also add -e git+https://github.com/elasticsearch/elasticsearch-py.git@master#egg=elasticsearch to my requirements file because my elasticsearch server needed to specify https, username, and password. Currently the release version 1.2.0 didn’t have that feature, but it is available in their master branch
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