Bug 272

Summary:	servername disappears after sudo -s
Product:	Sudo	Reporter:	edweger <ernst.deweger>
Component:	Sudo	Assignee:	Todd C. Miller <Todd.Miller>
Status:	RESOLVED INVALID
Severity:	normal
Priority:	normal
Version:	1.6.8
Hardware:	Sun
OS:	Other

Description edweger 2007-12-05 05:02:56 MST

Hi,

I am running 1.6.8 on all my Solaris servers (8, 9 and 10). When I use sudo to become root the <username>@<servername> <pwd> prompt appears as normal. I have installed on a test server release 1.6.9p8 (downloaded from Sunfreeware). When you become root using sudo -s and as prompt of your own user you have <username>@<servername> <pwd> the <servername> disappears. Instead of weger@server /home > you get after sudo -s: root@ /home >. If I run my .profile after the sudo command the prompt is <username>@<servername> <pwd>.

I have tested this on a solaris 5.8 and a solaris 5.10 system. My guess is that in my case this also works for solaris 5.9

Is this already known to you?

Regards,
Ernst de Weger
Unix System Administrator
Orange Netherlands NV

Comment 1 Todd C. Miller 2007-12-05 13:41:57 MST

Chances are that the environment variable used in your prompt is not being preserved when you run sudo.  Starting with sudo 1.6.9, commands run by sudo inherit a minimal environment instead of a copy of the caller's environment.

Sudo will preserve the HOSTNAME environment variable by default but your prompt may be using something else.  If you look in your .profile you can probably figure out what that is.  Then you can add a line like the following to the top of your sudoers file.

Default env_keep += HOST

replacing HOST with whatever the environment variable you need to preserve really is.

Another alternative is to use "sudo -i" instead of "sudo -s".  Unlike -s, -i will run a login shell which will source the .profile of the target user.

Comment 2 Todd C. Miller 2008-03-06 16:18:47 MST

This is almost certainly an environment variable issue.