Twin directories of rfcs:

[DIR]  ftp://ftp.wh8.tu-dresden.de/pub/cert.dfn/pem/PEM-DEV/archives/rfcs/
[DIR]  ftp://ftp.wh8.tu-dresden.de/pub/cert.dfn/pem/PEM-DEV/rfcs/
[DIR]  ftp://ftp.fhg.de/archive/gmd/div/documents/misc/rfcs/
pkg://apacheds-0.9.1.tar.gz:6243769/apacheds-0.9.1/xdocs/  downloads[DIR]3  apacheds-0.9.1.tar.gz/apacheds-0.9.1/xdocs/rfcs/
pkg://apacheds-0.9.2-src.tar.gz:780377/apacheds-0.9.1/docs/  downloads[DIR]3  apacheds-0.9.2-src.tar.gz/apacheds-0.9.1/docs/rfcs/
pkg://apacheds-0.9.2.tar.gz:9738328/apacheds-0.9.2/xdocs/  downloads[DIR]3  apacheds-0.9.2.tar.gz/apacheds-0.9.2/xdocs/rfcs/
pkg://apacheds-0.9.tar.gz:9037058/apacheds-0.9.2/docs/  downloads[DIR]3  apacheds-0.9.tar.gz/apacheds-0.9.2/docs/rfcs/
[DIR]  ftp://ftp.di.uminho.pt/pub/rfcs/
pkg://mime-support_3.18-1.3_all.deb:67980/mime-support-3.18/  info  downloads[DIR]3  mime-support_3.18-1.3_all.deb/mime-support-3.18/rfcs/
pkg://mime-support_3.26-1.tar.gz:34672/mime-support/  downloads[DIR]3  mime-support_3.26-1.tar.gz/mime-support/rfcs/
pkg://mime-support_3.28-1_all.deb:28774/mime-support/  info  downloads[DIR]3  mime-support_3.28-1_all.deb/mime-support/rfcs/
pkg://mime-support_3.34-1_all.deb:30164/mime-support/  info  downloads[DIR]3  mime-support_3.34-1_all.deb/mime-support/rfcs/
pkg://mime-support_3.35-1_all.deb:30268/mime-support/  info  downloads[DIR]3  mime-support_3.35-1_all.deb/mime-support/rfcs/
pkg://mime-support_3.35-2_all.deb:30396/mime-support-3.35/  info  downloads[DIR]3  mime-support_3.35-2_all.deb/mime-support-3.35/rfcs/
pkg://mime-support_3.36-1_all.deb:30416/mime-support/  info  downloads[DIR]3  mime-support_3.36-1_all.deb/mime-support/rfcs/
pkg://mime-support_3.39-1.tar.gz:28441/mime-support/  downloads[DIR]3  mime-support_3.39-1.tar.gz/mime-support/rfcs/
pkg://mime-support_3.39-1_all.deb:30898/mime-support/  info  downloads[DIR]3  mime-support_3.39-1_all.deb/mime-support/rfcs/
pkg://mime-support_3.39-1ubuntu1_all.deb:31316/mime-support-3.39/  info  downloads[DIR]3  mime-support_3.39-1ubuntu1_all.deb/mime-support-3.39/rfcs/
pkg://mime-support_3.40-1.1_all.deb:31266/mime-support-3.40/  info  downloads[DIR]3  mime-support_3.40-1.1_all.deb/mime-support-3.40/rfcs/
pkg://mime-support_3.42-1.tar.gz:28990/mime-support/  downloads[DIR]3  mime-support_3.42-1.tar.gz/mime-support/rfcs/
pkg://mime-support_3.43-1.tar.gz:31070/mime-support/  downloads[DIR]3  mime-support_3.43-1.tar.gz/mime-support/rfcs/
pkg://mime-support_3.44-1.tar.gz:29195/mime-support/  downloads[DIR]3  mime-support_3.44-1.tar.gz/mime-support/rfcs/
pkg://mime-support_3.44-1_all.deb:33286/mime-support/  info  downloads[DIR]3  mime-support_3.44-1_all.deb/mime-support/rfcs/
pkg://mime-support_3.9-1.3_all.deb:99266/mime-support-3.9/  info  downloads[DIR]3  mime-support_3.9-1.3_all.deb/mime-support-3.9/rfcs/
[DIR]  ftp://ftp.su.se/pub/security/pem/PEM-DEV/archives/rfcs/
[DIR]  ftp://ftp.su.se/pub/security/pem/PEM-DEV/rfcs/
pkg://pantomime_1.1.2.dfsg.orig.tar.gz:227423/Pantomime/  downloads[DIR]3  pantomime_1.1.2.dfsg.orig.tar.gz/Pantomime/rfcs/
pkg://pantomime_1.1.99.orig.tar.gz:436116/pantomime-1.1.2.orig/  downloads[DIR]3  pantomime_1.1.99.orig.tar.gz/pantomime-1.1.2.orig/rfcs/
[DIR]  ftp://ftp.gwdg.de/pub/cert.dfn/pem/PEM-DEV/archives/rfcs/
[DIR]  ftp://ftp.gwdg.de/pub/cert.dfn/pem/PEM-DEV/rfcs/
[DIR]  ftp://ftp.tu-chemnitz.de/.SAN0/pub/documents/rfcs/
[DIR]  ftp://ftp.tislabs.com/pub/PEM-DEV/archives/rfcs/
[DIR]  ftp://ftp.blackcube.org/pub/burks.bton.ac.uk_burks_software/burks/internet/rfcs/rfcs/
[DIR]  ftp://ftp.blackcube.org/pub/burks.bton.ac.uk_burks_software/burks/internet/rfcs/
[DIR]  ftp://ftp.cs.pdx.edu/stash/bittlerk/Xfree/prv/rfcs/
[DIR]  ftp://ftp.task.gda.pl/vol/zfs/ftp.isoc.org/rfcs/
[DIR]  ftp://ftp.nrc.ca/pub/docs/rfcs/
[DIR]  ftp://130.237.164.232/pub/security/pem/PEM-DEV/rfcs/
[DIR]  ftp://130.237.164.232/pub/security/pem/PEM-DEV/archives/rfcs/
[DIR]  ftp://ftp.it.su.se/pub/security/pem/PEM-DEV/rfcs/
[DIR]  ftp://ftp.it.su.se/pub/security/pem/PEM-DEV/archives/rfcs/
[DIR]  ftp://ftp.task.gda.pl/vol/zfs2/ftp.isoc.org/rfcs/