There is a problem with SSH/SFTP login for users in Wheezy update of DTC installation.
This is because the 64 libraries have changed location:
/lib64 -> /lib/x86_64-linux-gnu
Replace all references to the wrong dir from:
/usr/share/dtc/admin/install/functions
You should update the line setting this var: CPY_LIBS (line 4977 currently for me)
CPY_LIBS="ld-linux.so.2 libbsd.so.0 libutil.so.1 libresolv.so.2 libpthread.so.0 ld-linux.so.2 libdl.so.2 libc.so.6 libedit.so.2 libm.so.6 libbsd.so.1 libcrypt.so.1 libnss_compat.so.2 libnsl.so.1 libnss_files.so.2 libpam.so.0 libpam_misc.so.0 libncurses.so.5 libacl.so.1 libattr.so.1 libcap.so.1 libbz2.so.1.0 libz.so.1 libtinfo.so.5 libselinux.so.1 librt.so.1"
Then run install script
/usr/share/dtc/admin/install/install
Sources:
http://www.gplhost.sg/lists/dtcdev/msg03980.html
http://forums.gplhost.com/fudforum/t/322219/-ssh-login-failure-
http://forums.gplhost.com/fudforum/t/320531/-errors-in-new-wheezy-install-