Is it neccessary to do the update of zlib?
In the guide there is a comment from a CentOS developer that seems to advise against doing the zlib update as the security issues are indeed fixed.
I am not sure on this. I can run ISPconfig and make it ignore the zlib update anyway. What are your thoughts?
Also, I found this post about the problems...
But under package management I seem to have the mysql devel packages installed.