The remote host is missing an update as announced via advisory SSA:2009-015-01.

https://secure1.securityspace.com/smysecure/catid.html?in=SSA:2009-015-01

Updated bind packages are available for Slackware 10.2 and 11.0 to address a load problem. It was reported that the initial build of these updates complained that the Linux capability module was not present and would refuse to load. It was determined that the packages which were compiled on 10.2 and 11.0 systems running 2.6 kernels, and although the installed kernel headers are from 2.4.x, it picked up on this resulting in packages that would only run under 2.4 kernels. These new packages address the issue. As always, any problems noted with update patches should be reported to security@slackware.com, and we will do our best to address them as quickly as possible.