When I tried to update the SVN code repositories, I got a SSL error:

PROPPATCH of 
'/codes/home_projects/!svn/wrk/202ce844-28c0- 
f54f-a96e-8e5dcf47e73e/trunk/code/wtools/lib/jboss-seam.jar': 
SSL negotiation failed: SSL error: parse tlsext 
(https://lnx.markusvirtanen.com)

This occured only with very large updates and at first I thought it could have something to do with the SSL timeout. Instead, it was caused by TLS Hostname extensions described in RFC 3546.

To fix the issue, I had to disable the TLSv1 support from the httpd:

Yesterday, many Finnish citizens and reporters of Yellow Press were enjoying a weird Finnish tradition when last year's tax information was again published. That information reveals how much every citizen earned last year and in this cold country some of us warm themselves up by reading how much money did their neighbours get last year.