Monthly Archives: January 2013

A note on Mysql Connectivity in Chroot

When mysql chroot and web server chroot are different, we can still connect to mysql in our web app using, i.e. via tcp/ip. But localhost/socket will not work, since the two chroots are different.

If mysql chroot is under web server chroot, We can then use localhost/socket to connect to mysql from within webserver chroot in our web app.

Performance wise, socket is better than tcp/ip due to the overhead of tcp/ip.

libmCrypt php-mcrypt on CentOS 6

Encounter error like “configure: error: mcrypt.h not found. Please reinstall libmcrypt.” when trying to build php on CentOS 6 or alike?

Can not Yum install php-mcrypt?

This is becasue CentOS 6.3 Yum base repository dropped support of libmCrypt php-mcrypt… Here is a quick fix to install libmCrypt php-mcrypt on CentOS 6 (and RHEL 6 etc.)

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