Much of New Relic's software runs on FreeBSD, but for some Linux-based agents there are some challenges.
New Relic officially supports the PHP agent on FreeBSD. It may also run on other BSDs for x86 and amd64 architectures only. New Relic compiles the release packages on FreeBSD 7.3 or higher. Recommendation: Use FreeBSD 7.4 or higher; releases earlier than 7.3 are not supported.
PHP users may encounter the following error with FreeBSD 8:
/libexec/ld-elf.so.1: Shared object "libz.so.4" not found, required by "newrelic-daemon"
If you do, create a symlink from libz.so.4 to the actual version of libz.so you have installed.
Note: Some versions of PHP shipped with FreeBSD do not come with the LINKTHR build option enabled; if yours doesn't, change it and rebuild PHP. Otherwise the agent will cause your web server to hang when processing PHP requests.
If you still have problems, submit a support ticket (for fastest service) or email support @ New Relic. Also, you may be able to find support from the community at Stack Overflow. Tag your post with