You just have configured your sudoers to execute some command without password from a ssh connection. Bummer, you just got an error:
sudo: sorry, you must have a tty to run sudo
No panic, there is an easy fix! It is most-likely that you are running on a Linux distribution with sudo configured to require a tty. This is generally enforced by having
Defaults requiretty in the /etc/sudoers.
Some Linux distributions have been known to have this as a default configuration. RedHat just recently removed this from Fedora and REHL, see Bug 1020147.
What is the fix?
To disable requiretty globally or to a single command, you have two options:
- Replace Defaults requiretty by Defaults !requiretty in your /etc/sudoers. This will impact your global sudo configuration.
Alternatively, you can change this configuration at a per user, per group or per command basis
Defaults!/path/to/my/bin !requiretty Defaults:myuser !requiretty
- Connect by ssh using
From man ssh:
-t Force pseudo-tty allocation. This can be used to execute arbitrary screen-based programs on a remote machine, which can be very useful, e.g. when implementing menu services. Multiple -t options force tty allocation, even if ssh has no local tty.