<div dir="ltr"><span class="Apple-style-span" style="border-collapse: collapse; white-space: pre; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px;">Dear All,
could any one help me with Privilege available to 
<b style="mso-bidi-font-weight:normal"><span style="font-size:18.0pt;mso-bidi-font-size:12.0pt;font-family:"Liberation Serif","serif";
mso-fareast-font-family:"DejaVu Sans";mso-bidi-font-family:"Times New Roman";
color:black;mso-font-kerning:.5pt;mso-ansi-language:EN-US;mso-fareast-language:
AR-SA;mso-bidi-language:AR-SA">root /su/ sudo 
<span class="Apple-style-span" style="font-size: large;">and also the difference between the above three</span>
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<p class="MsoNormal"><span style="color:#2300DC">[gopalghosh@localhost ~]$ whoami</span></p><p class="MsoNormal"><span style="color:#2300DC">gopalghosh</span></p><p class="MsoNormal"><span style="color:#2300DC">[gopalghosh@localhost ~]$ login</span></p>
<p class="MsoNormal"><span style="color:#2300DC">login: root</span></p><p class="MsoNormal"><span style="color:#2300DC">Password:</span></p><p class="MsoNormal"><span style="color:#2300DC">Login incorrect </span><span style="color:red">{why it is saying Login incorrect as I am typing the correct password}</span></p>
<p class="MsoNormal"><span style="color:#2300DC">[gopalghosh@localhost ~]$ login</span></p><p class="MsoNormal"><span style="color:#2300DC">login: root</span></p><p class="MsoNormal"><span style="color:#2300DC">Password:</span></p>
<p class="MsoNormal"><span class="Apple-style-span" style="color: rgb(35, 0, 220); ">Login incorrect</span><br></p><p class="MsoNormal"><span style="color:#2300DC">[gopalghosh@localhost ~]$ su</span></p><p class="MsoNormal">
<span style="color:#2300DC">Password:<span style="mso-tab-count:
1">        </span></span><span style="color:red">{when I logged as su it accepted the same password}</span></p><p class="MsoNormal"><span style="color:#2300DC">[root@localhost gopalghosh]# sudo ls </span></p><p class="MsoNormal">
<span style="color:#2300DC">Desktop<span style="mso-spacerun:yes">  </span>Documents<span style="mso-spacerun:yes"> </span>Download<span style="mso-spacerun:yes">  </span>Music<span style="mso-spacerun:yes">  </span>Pictures<span style="mso-spacerun:yes"> </span>Public<span style="mso-spacerun:yes">  </span>Templates<span style="mso-spacerun:yes">  </span>Videos</span></p>
<p class="MsoNormal"><span style="color:#2300DC">[root@localhost gopalghosh]# exit

exit
</span></p><p class="MsoNormal"><span style="color:#2300DC">[gopalghosh@localhost ~]$ sudo nano </span></p><p class="MsoNormal"><span class="Apple-style-span" style="color: rgb(35, 0, 220); ">We trust you have received the usual lecture from the local System</span></p>
<p class="MsoNormal"><span style="color:#2300DC">Administrator. It usually boils down to these three things:</span></p><p class="MsoNormal"><span style="color:#2300DC"><span style="mso-spacerun:yes">    </span>#1) Respect the privacy of others.</span></p>
<p class="MsoNormal"><span style="color:#2300DC"><span style="mso-spacerun:yes">    </span>#2) Think before you type.</span></p><p class="MsoNormal"><span style="color:#2300DC"><span style="mso-spacerun:yes">    </span>#3) With great power comes great responsibility.
</span></p><p class="MsoNormal"><span style="color:#2300DC">[sudo] password for gopalghosh:</span></p><p class="MsoNormal"><span style="color:#2300DC">gopalghosh is not in the sudoers
file.<span style="mso-spacerun:yes">  </span>This incident will be reported. </span><span style="color:red">{how to add my local login in<span style="mso-spacerun:yes"> </span>sudoers file}</span></p><span style="font-size:12.0pt;font-family:"Liberation Serif","serif";
mso-fareast-font-family:"DejaVu Sans";mso-bidi-font-family:"Times New Roman";
color:#2300DC;mso-font-kerning:.5pt;mso-ansi-language:EN-US;mso-fareast-language:
AR-SA;mso-bidi-language:AR-SA">[gopalghosh@localhost ~]$
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Thanks</span><div><span class="Apple-style-span" style="border-collapse: collapse; white-space: pre; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px;">regards

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