Which is the default env _ reset in sudoers file?

Which is the default env _ reset in sudoers file?

With the default env_reset all sudo sessions will invoke a shell with minimum shell variables, including those set in /etc/profile and some others if specified in sudoers file (using the env_keep option). So this will make a more controlled sudo access without bypassing sudo security restrictions.

Why is my username not in the sudo file?

A broken sudo may be caused by any of the following: A user should not have been removed from the sudo or admin group. The /etc/sudoers file was altered to prevent users in sudo or admin group from elevating their privileges to that of root using sudo command.

What are the variables in the sudoers file?

The new environment contains the TERM, PATH, HOME, MAIL, SHELL, LOGNAME, USER, USERNAME and SUDO_* variables in addition to variables from the invoking process permitted by the env_check and env_keep options. This is effectively a whitelist for environment variables.

Why do I get an error when running tcpdump on Sudo?

When running tcpdump via sudo, you may encounter the following error message: tcpdump: bpf_load: genmajor failed: A file or directory in the path name does not exist. In this case, tcpdump is known to require the ODMDIR environment variable to be set.

How to keep environment variables when using sudo..?

-E, –preserve-env Indicates to the security policy that the user wishes to preserve their existing environment variables. The security policy may return an error if the user does not have permission to preserve the environment. The trick is to add environment variables to sudoers file via sudo visudo command and add these lines:

Why do I put sudoers after the sudo group?

Here is /etc/sudoers. You should put that line after the line with the rule for the sudo group, because, as the sudoers man page states: When multiple entries match for a user, they are applied in order. Where there are multiple matches, the last match is used (which is not necessarily the most specific match).

How to allow a user to run a sudo command?

First, you’ll need to use the visudo utility… This command safely opens up the /etc/sudoers file for you in your default editor. Let’s say you want to allow a user named “joe” to run a given command. You just need to add a line like this below (customize for your needs)

How to fix sudoers file with incorrect syntax?

(which will prevent you from saving a sudoers file with incorrect syntax). Always use visudo to edit your sudoers file, never edit it directly yourself. It will prevent you saving it to disk unless it validates. It should solve your problem.

What happens if you don’t know the password for Sudo?

Just remove that line. If the problem is that you don’t know the password for ec2-user, then you must find some other way to get root access. The line ec2-user ALL= (ALL) ALL means that sudo will ask for a password, because you didn’t specify NOPASSWD.

How to remove a corrupted file from / etc / sudoers?

If you want to remove a corrupted file in sudoers.d directory, use this: If you want to recover the default /etc/sudoers, you can use this gist to copy the default configurations, putting it in a non-root accessed place (e.g. your $HOME ).