0
votes
2answers
126 views

Changing root password does not change sudo password

I'm trying to change the password that get's asked when doing sudo. I'm in Ubuntu. Doing 'sudo passwd' or 'sudo passwd root' does give me the two new password questions, and it successfully changes ...
4
votes
1answer
550 views

How can I resize my root partition in Debian?

I am trying to add space to my root partition and am really not sure the safest way to go about it. I have read this thread, Can I resize the root partition without uninstalling and reinstalling ...
1
vote
3answers
710 views

Root permission - username ALL=(ALL) ALL does not work

I'm a beginner. I'm trying to give my user root permissions, so I edited the sudoers file like this: black ALL=(ALL) ALL "black" is my username. But I still don't have root permissions, and ...
2
votes
1answer
127 views

Can I lock the root account during an install of Debian GNU/Linux 6 “squeeze”?

By default, Ubuntu locks account root; can I do the same, in Debian GNU/Linux 6 "squeeze", during install?
1
vote
0answers
118 views

Automatically start named pipe reader on startup?

I'm trying to run a script with root access from PHP. I can't do that because Apache's user, www-data, don't have root access because of security reasons. To fix that, I was advised to use a named ...
0
votes
2answers
928 views

How to assign user root rights?

I have Suse Linux on my desktop. So I am root and "normal" user. Frequently e.g. to start tomcat or install/remove a program I should use sudo or switch to super user. But I have defined many aliases ...
0
votes
2answers
1k views

ssh root@localhost error; help me hack this box :)

I need to gain a root shell on a linux vm for a security class. I have a user account on the system and a means to write to any file (i.e. /etc...) and want to escalate my privileges with: ssh ...
7
votes
1answer
417 views

Lightweight virtualization on Linux with user isolation

What Linux-on-Linux virtualization technologies provide user isolation? Specifically, I want root in the virtual machine not to have any privilege on the host. This was not the case for LXC, but was ...
10
votes
3answers
14k views

Can I change root's email address or forward all mail to an external address?

I'm getting a lot of mail in my root user's mail account. This appears to be mostly reports and errors from things like cron scripts. I'm trying to work though and solve these things, possibly even ...
0
votes
0answers
294 views

Why do you need sudo for “sudo su root”? [duplicate]

Possible Duplicate: When do su and sudo use different passwords? Why do you need to use sudo su root ? Why won't it work to just use su root?
4
votes
4answers
731 views

How sudo/root-ness detection works

Programs that make changes system-wide require sudo unless I am already the root user. Now, the question is: how exactly does the system figure out that I am (not) root? Does it: Check to see if ...
0
votes
3answers
251 views

Did I delete the whole debian root server?

I installed a new debian 6 system a few days ago - today I wanted to create a CSR request for a SSL certificate and wanted to delete the CSR file afterwards. In the root of my server I was typing rm ...
1
vote
1answer
886 views

How to reset Linux root and grub passwords?

If we forget our Linux root password, we can change it by changing grub's boot options. But in this case, we also set a grub password and forgot both passwords. How can we recover both?