FreeBSD : mod_security2 broken?
I walked through routine maintenance of one of FreeBSD boxes, which was running as reverse proxy (Apache httpd + mod_security2 + mod_proxy) for OWA in my office. Everything went smoothly. But when it came to restarting of services, apache started to complain of unresolved symbol!
Cannot load /usr/local/libexec/apache22/mod_security2.so into server: /usr/local/libexec/apache22/mod_security2.so: undefined symbol: xmlFree
I reinstalled apache22, libxml2 and mod_security2 from ports. Nothing unusual was sighted. Asking our friend, google didn’t provide much of information. The latest that I managed to dig out was in 2005 and 2006. Some dudes had the same issue as me.
Anyhow I’m pretty convinced it is a bug from mod_security2-2.1.7_1 in FreeBSD’s ports. Here a quick workaround, just add the lines below to your Apache httpd.conf and the error message will go away!
LoadFile /usr/local/lib/libxml2.so
LoadModule security2_module libexec/apache22/mod_security2.so
Tuesday, April 29th, 2008
