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Common

Sending Mail without being considered SPAM

15. February 2016 By cs-admin

Most websites will want to send mails one day. Usually people go the simple way and configure their CMS or whatever else to send mail using php’s mail() function. This works fairly well but without further work most of the mails being sent will be considered spam. This can have several reasons. Please ensure to do […]

Common

Create State of the Art SSL Certificates to prevent Google Chrome Warnings

14. September 2015 By cs-admin

As of some time last year, Google Chrome started to phase out support for certificates with SHA-1 signatures. Since March 2015 users see a red warning notice in the address bar. This is a reputation problem every site owner should prevent. The notice occurs if any of the certificates in the chain is SHA-1 signed. So […]

Common

Discovered yet another WordPress Casino Spam Hack

14. August 2015 By cs-admin

I recently got an email of google informing me about a potential hack of a wordpress site I’m responsible for. It is presenting a massive amount of casino and cash load spam websites. Despite the fact that there is some kind of malicious code on my server, the loss of reputation for the website is […]

Common

How to install Python cx_Oracle on Debian

4. March 2015 By cs-admin

Python is my way to go and the cx_Oracle module helps getting in contact with an Oracle database. While it is relatively easy to install it on my OS X, it is a bit harder on Debian.

Common

Proposal – NG Egress Traffic Proxy for AWS Environments

1. December 2014 By cs-admin

Running in a cloud always means some changes in mind in comarison to a static datacenter environment. Especially if you think about security and m2m trusts. Amazon AWS has some great features like IAM Roles to handle this in a cloud-native fashion, unfortunately only available for AWS services. In my opinion it is a damn […]

Common

Custom AWS Cloudwatch Metrics with Python Boto

19. November 2014 By cs-admin

I recently needed to send some custom metrics to AWS Cloudwatch. This is no rocket science but a lightweight example may safe some time implementing it.

Common

AWS Lambda or computing without compute

18. November 2014 By cs-admin

A nodejs based computation service which adds a lot more abstraction of computation from resources than ec2 does.

Common

AWS CloudWatch Logs

1. October 2014 By cs-admin

AWS recently released it’s barely new CloudWatch feature for log analysis in eu-west-1 and us-west-1. It was started in us-east-1 first and got a rollout over to ireland yesterday. After installation and configuration of a small daemon called awslogs, instance logs appear in the Webinterface quite fast. They can get divided into log-groups and streams. The interface is quite […]

Common

Python Boto – see what configuration is being used

10. September 2014 By cs-admin

See what configuration is being used by python boto

Common

Install Ruby Gem in Users Homedir

11. August 2014 By cs-admin

Sometimes it seems to be nice to install ruby gems only in users home instead of system-wide, even if this is configured to be in the rubyrc config. Check your configuration: gem env Install a gem in user home: gem install –user-install gem_name