Topic "How to sudo through a startup message"

Author Message
bobbel

Guest


Hello,

I'm connecting with my limited user to a server and do a sudo su - rootuser after that.

This works fine, until the logon has a startup message. Then I get this error on the sudo command:

Error skipping startup message. Your shell is probably incompatible with the application (BASH is recommended)

See: http://winscp.net/eng/docs/message_startup_message

I'm using it with SCP and the shell command sudo su - rootuser.
Without the sudo su command, there is no problem with the startup message

So, how can I sudo with a startup message?

When I connect with Putty (SSH), I'm getting the startup message, when I login with my limited user. When I'm doing the sudo su, I'm not getting another startup message.

Since I'm not having root rights on the server, I'm not able to configure the user or the startup message different!

I'm using WinSCP 5.5.0 (Build 3839).

Thank you for your help,
bobbel
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martin
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Site Admin
Joined: 2002-12-10
Posts: 24512
Location: Prague, Czechia
As I've asked you already on stackoverflow, please attach a full log file showing the problem (using the latest version of WinSCP).

To generate log file, enable logging, log in to your server and do the operation and only the operation that causes the error. Submit the log with your post as an attachment. Note that passwords and passphrases not stored in the log. You may want to remove other data you consider sensitive though, such as host names, IP addresses, account names or file names (unless they are relevant to the problem). If you do not want to post the log publicly, you may email it to me. You will find my address (if you log in) in my forum profile. Please include link back to this topic in your email. Also note in this topic that you have emailed the log.
bobbel

Guest


Here is the full log file.
I replaced the host with myhost, the limited user with myuser and the sudo user with rootuser.
sudo_winscp.log (11.65 KB) [Download]

Description: Logfile for sudo with WinSCP

bobbel

Guest


Also, as you can see, I've already updated to the latest version:

WinSCP Version 5.5.2 (Build 4130) (OS 6.1.7601 Service Pack 1 - Windows 7 Enterprise)

Unfortunately it doesn't work either.
martin
[View user's profile]
Site Admin
Joined: 2002-12-10
Posts: 24512
Location: Prague, Czechia
The key is:
Quote:
sudo: no tty present and no askpass program specified

See comment on requiretty at:
http://winscp.net/eng/docs/faq_su
_________________
Martin Prikryl
bobbel

Guest


Thanks for your answer!

So, finally, I'm not able to do the task, since I'm not allowed to edit the /etc/sudoers file to turn off the requiretty option (if it's turned on... I'm not sure since I cannot access this file...).

However, you helped me a lot to find out, how to theoretically solve the problem - thank you! Wink
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