mod_tls_fscache
The mod_tls_fscache submodule is contained in the mod_tls_fscache.c file, and is not compiled by default. Installation instructions are discussed here.
mod_tls_fscache.c
This submodule a filesystem-based implementation of an external OCSP response cache for use by the mod_tls module's TLSStaplingCache directive.
mod_tls
TLSStaplingCache
This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/).
This product includes cryptographic software written by Eric Young (eay@cryptsoft.com).
Please contact TJ Saunders <tj at castaglia.org> with any questions, concerns, or suggestions regarding this module.
The mod_tls_fscache module supports the "fs" string for the type parameter of the TLStaplingCache configuration directive. The info parameter for mod_tls_fscache must be the path to a directory, on disk, in which mod_tls_fscache will store OCSP responses. This means that the TLSStaplingCache setting will look like:
TLStaplingCache
TLSStaplingCache fs:/path=/var/ftpd/ocsp
Logging The mod_tls_fscache module supports trace logging, via the module-specific log channels:
proftpd.conf
TraceLog /path/to/ftpd/trace.log Trace tls.fscache:20
$ ./configure --with-modules=mod_tls:mod_tls_fscache $ make $ make install
Alternatively, if your proftpd was compiled with DSO support, you can use the prxs tool to build mod_tls_fscache as a shared module:
proftpd
prxs
$ prxs -c -i -d mod_tls_fscache.c