<div>
Can you still log on as root (from the terminal)?<br />
<br />
Then try this:<br />
<br />
echo 'myuser ALL=(ALL) ALL' &gt;&gt;&nbsp;/etc/sudoers<br />
<br />
But be SHURE to put in &gt;&gt;&nbsp;(two &gt;'s , whatever they are called) otherwise there might be some unexpected effects :-~
</div>


Can you still log on as root (from the terminal)?

Then try this:

echo 'myuser ALL=(ALL) ALL' >> /etc/sudoers

But be SHURE to put in >> (two >'s , whatever they are called) otherwise there might be some unexpected effects :-~

<div>
Offcourse I meant: SURE<br />
<br />

</div>


<div>
No. I cannot login as root. It says &quot;Login Incorrect&quot;
</div>


No. I cannot login as root. It says "Login Incorrect"

<div>
<div class="content wysiwyg-content">
Hi<br />
<br />
I am running Ubuntu 10.10. I have only one user which was able to Sudo few hours back. I made a new group abc and mistakenly ran the this statement<br />
<br />
usermod -G abc myuser<br />
<br />
I then logged out. Now I am not able to sudo.<br />
<br />
When I sudo Linux says &quot;myuser is not in the sudoers file. &nbsp;This incident will be reported&quot;<br />
<br />
Is there any solution?
</div>
</div>


Hi

I am running Ubuntu 10.10. I have only one user which was able to Sudo few hours back. I made a new group abc and mistakenly ran the this statement

usermod -G abc myuser

I then logged out. Now I am not able to sudo.

When I sudo Linux says "myuser is not in the sudoers file.  This incident will be reported"

Is there any solution?

Ubuntu Lost Sudoer

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.

Linux

The Linux operating system, in all its flavors, has its own share of security flaws that allow intrusions, but there are various mechanisms by which these flaws can be removed, generally divided into two parts: authentication and access control. Authentication is responsible for ensuring that a user requesting access to the system is really the user with the account, while access control is responsible for controlling which resources each account has access to and what kind of access is permitted.

Linux Security

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