Announcing Service Windows: Reboot Weekend

As may have already been brought to your attention, some software mitigation is needed for vulnerabilities dubbed “Meltdown” (CVE-2017-5754) and “Spectre” (CVE-2017-5753, CVE-2017-5715).

If I were to summarize the issue with these vulnerabilities then in principle they would, when successfully exploited, allow reading memory that doesn’t belong to the process, the user or even the same operating system instance. In just that way, the Kolab Now infrastructure isn’t impacted.

However, we’re still going to need to patch this out. The only way we can is by updating software and rebooting systems, and this will happen during the weekend of Saturday January 13th and Sunday January 14th.

Continue Reading “Announcing Service Windows: Reboot Weekend”

Annual SSL Certificate Refresh

This is a reminder that our annual certificate renewal period is coming up soon. Usually, we have our certificates issued some time in December, and certificate issuers allow for a grace period up to some time in January. We’re now in that grace period, so our certificates are going to be renewed and cycled throughout our infrastructure.

Continue Reading “Annual SSL Certificate Refresh”

Experimenting with TOTP Two Factor Authentication

We’re currently experimenting with an implementation of TOTP-based 2 factor authentication, allowing our customers to use a second factor.

Until now, Kolab Now required its users to supply a username and a password. This is considered only a single factor, since the username is your email address and thus known to third parties.

Continue Reading “Experimenting with TOTP Two Factor Authentication”