Archive for 2015
- DKIM-signing outgoing mail with exim4
There have been several systems designed to prevent mail spoofing over the years, the two most prominent solutions are DKIM and SPF. Here we're going to document the setup of using DKIM to signing outgoing mails with Debian's default mail transfer agent, exim4.
- Setting up a personal secure apt repository
Packages under development aren't always ready to be in the main Debian archive. But that doesn't mean it should be hard for people to install them. When asking people to test programs, it is most convenient to present it in the
- Preventing SPAM connections with bird.
Bird is an Internet routing daemon with full support for all the major routing protocols. It allows you to configure hosts to share routing information, via protocols such as BGP, OSPF, or even statically. Here we're going to look at using it to automatically blacklist traffic from SPAM-sources.
- Using the rubocop ruby code and style analyzer
If you're developing code that you expect others to read and work with then it is very important to pick a consistent style, and having a style-checker can make enforcing your choice much less painful. Here we'll take a look at the rubocop analyzer for Ruby.
- Easily working with multiple repositories (git, hg, etc)
There are situations where it is ueful to checkout multiple repositories, which might use different revision control systems, and operate upon them as a group. This is what the mr tool was designed for.
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