SSHFP not always working
I'm trying to make SSHFP
work. With these fingerprints in DNSSEC
it should
be possible to verify a host through DNSSEC
.
It seems I'm not the only one having problems. Take a look at Jan-Piet Mens blog.
At the moment I'm trying to link libbind9
with OpenSSH to use the Bind
resolver instead of the standard libresolv
. This is suggested in this bug
report, but I do not have
that working, yet.
Accoring to this link it should be fully working with glibc version 2.11+. So it will not work on Redhat 5 or CentOS. On OpenBSD things work as expected and on OS X 10.6 (Snow Leopard) they don't.
I've checked these Linux operating systems:
OS and Version | (g)libc version | Working |
---|---|---|
Ubuntu 10.04 | 2.11 | Yes |
Ubuntu 11.04 | 2.12 | Yes |
Ubuntu 11.10 | 2.13 | Yes |
Fedora 14 | 2.13 | Yes |
CentOS 5 | 2.5 | No |
CentOS 6 | 2.12 | Yes |
Arch Linux | 2.13 | Yes |