Just tried using glTail on OSX and have found that it wont connect to systems where the SSH key is password-protected. Initially it was failing on ssh-askpass not being present, however even after using a common OSX script to provide that functionality I am getting the following error:
UNKNOWN:[/bin/bash: /usr/libexec/ssh-askpass: Operation not permitted
The ssh-askpass script is executable and has the correct permissions (its accessible by any user on the system), so I am not sure what is triggering the OMP error.