Root and Sudo: Difference between revisions

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I mentioned the Sudoers file briefly in the main Linux write up, but here we will go more in depth about it. Here is a typical Sudoers file:
I mentioned the Sudoers file briefly in the main Linux write up, but here we will go more in depth about it. Here is a typical Sudoers file:
<nowiki>Defaults env_reset
<nowiki>#!/bin/bash
Defaults mail_badpass
if [ "$1" == "password" ]; then
Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
    echo "correct";
 
else
# This fixes CVE-2005-4890 and possibly breaks some versions of kdesu
    echo "wrong";
# (#1011624, https://bugs.kde.org/show_bug.cgi?id=452532)
fi</nowiki>
Defaults use_pty
 
# This preserves proxy settings from user environments of root
# equivalent users (group sudo)
#Defaults:%sudo env_keep += "http_proxy https_proxy ftp_proxy all_proxy no_proxy"
 
# This allows running arbitrary commands, but so does ALL, and it means
# different sudoers have their choice of editor respected.
#Defaults:%sudo env_keep += "EDITOR"
 
# Completely harmless preservation of a user preference.
#Defaults:%sudo env_keep += "GREP_COLOR"
 
# While you shouldn't normally run git as root, you need to with etckeeper
#Defaults:%sudo env_keep += "GIT_AUTHOR_* GIT_COMMITTER_*"
 
# Per-user preferences; root won't have sensible values for them.
#Defaults:%sudo env_keep += "EMAIL DEBEMAIL DEBFULLNAME"
 
# "sudo scp" or "sudo rsync" should be able to use your SSH agent.
#Defaults:%sudo env_keep += "SSH_AGENT_PID SSH_AUTH_SOCK"
 
# Ditto for GPG agent
#Defaults:%sudo env_keep += "GPG_AGENT_INFO"
 
# Host alias specification
 
# User alias specification
 
# Cmnd alias specification
 
# User privilege specification
root ALL=(ALL:ALL) ALL
 
# Allow members of group sudo to execute any command
%sudo ALL=(ALL:ALL) ALL
 
# See sudoers(5) for more information on "@include" directives:
 
brendan ALL = (root) NOPASSWD: /usr/bin/firefox-esr
 
@includedir /etc/sudoers.d</nowiki>

Revision as of 19:18, 2 May 2024

Sudoers

I mentioned the Sudoers file briefly in the main Linux write up, but here we will go more in depth about it. Here is a typical Sudoers file:

#!/bin/bash
if [ "$1" == "password" ]; then
    echo "correct";
else
    echo "wrong";
fi