debian:~# apt-get -o DPkg::Options::="--force-overwrite" install ssh
Reading package lists... Done
Building dependency tree... Done
ssh is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
Need to get 0B of archives.
After unpacking 0B of additional disk space will be used.
Setting up openssh-server (4.3p2-7) ...
chmod: cannot access `/etc/default/ssh': No such file or directory
dpkg: error processing openssh-server (--configure):
subprocess post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of ssh:
ssh depends on openssh-server; however:
Package openssh-server is not configured yet.
dpkg: error processing ssh (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
openssh-server
ssh
E: Sub-process /usr/bin/dpkg returned an error code (1)