There are many reasons to be unhappy with current social media sites and chat applications. For a long time, there was no viable alternative, especially not, if you wanted usability and integration. Now there is hope, with Movim. Continue reading Federated XMPP chat (and more) with Movim: A success story
Distributed Denial of Service, DDoS for short, is the shooting star in today’s Internet nightmare gallery. Here is a quick overview over what each and everyone of us can do to prevent his. And some hints at manufacturers and researchers. Continue reading DDoS: What we can do to prevent it
One-Page CVs are a common way of getting attention. Services like enhanCV.com allow you to create them online, even autofilling some information from your social network presences, if you want to. Using those online services is not always the best choice, as you might Continue reading One Page CV Template
XMPP is the Extensible Messaging and Presence Protocol standardized by the IETF. This standard provides the framework for doing anything you want to do with chat, and more. Why is XMPP (formerly known as Jabber) not the mainstream chat protocol? Actually it is. It is the most secure messaging standard: battle-tested, independent, and privacy-focused. And it is the protocol behind Google Hangout and WhatsApp uses a variation of XMPP. But XMPP is more than just that.
XMPP has three strengths: extensibility, vendor-independence, and openness. Continue reading XMPP: Chat with a Future
Open, standards-compliant and interoperable chat sounds like a boon. However, proprietary and closed systems (WhatsApp, Facebook chat, Google Hangouts, …) are often easier to deploy, as they are nicely integrated in existing ecosystems. The freshly-released JSXC 3.0 shows that this is not necessary. Continue reading Interoperable Chat in Your Web Browser: JSXC 3.0 released
When dealing with multiple network connections or timeouts, the
select() Unix system call is still the workhorse for many applications. Its well-known and frequently used interface beats the learning curve on the more scalable
/dev/poll interfaces, especially if only a few file descriptors have to be monitored.
select()‘s younger sibling,
pselect(), adds improved signal handling while retaining interface simplicity. However, when not being extra careful, applications changing to
pselect() can ignore network messages for many minutes, as we had to learn the hard way on a medium-to-well loaded large-scale mail server. Continue reading pselect() Pitfalls
This year, all owners of .ch domains need to switch from the DNS registry SWITCH to a new registrar. Getting an overview over these registrars is hard. Thankfully, Marc Wäckerlin has started the road to transparency with a price comparison of Swiss .ch domain registrars. Here, I extend his results with a survey of DNSSEC support. Continue reading DNSSEC for .ch domains