Questions tagged [sudoers]
177 questions
151
votes
12 answers
How to check if I have sudo access?
I recently got into trouble because of this.
$sudo vim /etc/motd
[sudo] password for bruce:
bruce is not in the sudoers file. This incident will be reported.
Is there a way to check if I have sudo access or not?
Bruce
- 3,237
96
votes
5 answers
Why does the system have /etc/sudoers.d? How should I edit it?
Last time, I asked about the risk of these (in /etc/sudoers):
user_name ALL=(ALL) /usr/bin/vim /etc/httpd/confs/httpd.conf
%group_name ALL=(ALL) /usr/bin/vim /etc/httpd/confs/httpd.conf
While I was thinking about this problem, I found…
aob
- 1,095
45
votes
2 answers
How to allow user to preserve environment with sudo?
I'm running into the following error trying to allow some environment variables to pass through to the new environment when running sudo:
sudo: sorry, you are not allowed to preserve the environment
Some information that may be helpful to…
Andy Shinn
- 573
30
votes
3 answers
sudo command trying to search for hostname
Recently, I have changed the sudoers file and the hostname through /etc/hostname. After changing this files, my sudo command is taking a lot of time. Also, it says sudo unable to resolve host kaagini(hostname of my machine).
Why does sudo have to…
23
votes
4 answers
How can I properly set sudo/visudo's editor?
I am using Ubuntu 10.04 Server and trying to set up sudoers to respect a user's EDITOR choice (within limits)
In my sudoers I have:
Defaults editor=/usr/bin/nano:/usr/bin/vim
Defaults env_reset
And in the user .bashrc:
export…
Mark C
- 343
22
votes
1 answer
What do the "ALL"s in the line " %admin ALL=(ALL) ALL " in Ubuntu's /etc/sudoers file stand for?
What does each ALL mean? I understand that the whole line indicates that the admin group members get admininstartive privileges, but would like to know more info about the position of the ALLS and if they each refer to a different set of permissions…
Sri Kadimisetty
- 379
19
votes
1 answer
What are the percentage signs for in the sudoers file?
In my sudoers file, there are lines that begin with #, lines that begin with % and lines that begin with neither. The # is definitely being used to comment out lines, but what does the % do? Is it a comment marker too?
Rich
- 2,241
18
votes
1 answer
Why there is no sudoers file: "/etc/sudoers: No such file or directory"?
I am trying to add a new admin user, but:
# adduser username admin
adduser: The user `username' does not exist.
# man sudoers
No manual entry for sudoers
# less /etc/sudoers
/etc/sudoers: No such file or directory
The system is Debian 7…
static
- 1,427
- 5
- 20
- 31
14
votes
2 answers
sorry, you must have a tty to run sudo
I had already asked this question in Stack Overflow, but I've been asked to post it here. So doing the same.
I ran this command using my java program-
sudo -u -S pwd
I got this output-
command=sudo -u -S pwd
exitCode=1
sudo:…
AlwaysALearner
- 423
11
votes
3 answers
localhost in sudoers
There is no chance of an internal attack, so I would like to give sudo privileges to users at the local computer using sudoers. I tried these lines separately:
%admin localhost=(ALL) NOPASSWD: ALL
%admin 127.0.0.1=(ALL) NOPASSWD: ALL
But sudoers…
Zaz
- 2,716
10
votes
8 answers
Add a sudoer non-interactively from command line
(On Centos through Docker)
I know that I can add a sudoer using visudo. Is there a way to add a user to the sudoer list straight from the command line, so I don't have to do it interactively?
I'm asking because I'm trying to provision my Docker…
Roy Truelove
- 332
9
votes
2 answers
Perrmission to run specific command by sudo as www-data users without password
I have a webserver that also plays internet radio. As www-data user I want to run some commands, for example I've made this in /etc/sudoers file:
www-data ALL=(ALL) NOPASSWD: /usr/bin/amixer
And form PHP I can manipulate volume without using…
Peter
8
votes
4 answers
Lost sudo/su on Amazon EC2 instance
I have an Amazon EC2 instance. I can login just fine, but neither "su"
nor "sudo" work now (they worked fine previously):
"su" requests a password, but I login using ssh keys, and I don't
think the root user even has a password.
"sudo…
user59328
8
votes
2 answers
Can someone explain what is ` ALL=(ALL) NOPASSWD:ALL` does in sudoers file?
I know that that line above allows to run sudo command without having to type in the password. But what does the syntax actually mean? If you can link to an article then that would be fine too. Thanks
Nabeel Parkar
- 217
8
votes
2 answers
Sudoers NOPASSWD for single executable but allowing others
Operating System: Arch Linux
Linux version: 4.16.11
Sudo version: 1.8.23
What I need:
be able to execute any executable with a sudo with a password prompt
be able to execute one executable, /home/username/script.sh, without a password prompt.
When…
Yaroslav Mytkalyk
- 257
- 1
- 3
- 9