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Closed 9 years ago.
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I am trying to run a command that needs to write to the / folder. I added myself as user to sudoers file using sudo visudo. Added the following line at the end of file.
yedg ALL=(ALL) NOPASSWD: ALL
The command still fails complaining about permissions. Now this makes me wonder does adding to sudoers file allow me to run as root or does it give me privileges similar to root? Looks like the former. Am I right or did I miss something?
After you are added to sudoers file, you have permission to execute commands as root through sudo command.
Something like this:
sudo apt-get install skype
sudo rm -rf protectedDirectory
Actually sudo means substitute user do.
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Closed last year.
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"/etc/docker/daemon.json"
"/etc/docker/daemon.json" E212: Can't open file for writing
I’m currently trying to set up a Loki server, Promtail, and Grafana as docker images
I installed all the plugins needed however when I tried editing the docker daemon config file with this command
sudo nano /etc/docker/daemon.json
It does not allow me to write due to permissions so I tried using
sudo vi chmod 666 /etc/docker/daemon.json
but this only creates a new file in my directory called chmod
The docker containers are up but I can't see the Loki metrics on my web browser when I try to use localhost:3100/metrics neither can it can be added as a Datasource
Please can you help?
It should be sudo chmod 666 /etc/docker/daemon.json.
What you are doing is running vi against 3 files, chmod, 666, /etc/docker/daemon.json.
The directory /etc/docker must also exist as a directory, and not as a file.
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Closed 4 years ago.
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I've got a shell script which is supposed to install some packages from the Arch User Repository. The shell script is as follows:
#!/bin/sh
pacaur -S google-chrome --noconfirm # install google-chrome
The problem is, if I run this script using sudo sh script.sh, it'll just return: "you cannot perform this operation as root". If I run it without sudo, it'll ask for sudo later on when installing.
My question is, how can I avoid it asking me. I'd like this script to take care of installing all my packages just as is, without requiring me to actually give access manually. Would there be a way?
If you run sudo -v before calling the pacaur, this will ask you for your credentials and cache them for the next 15 minutes. You don't need to call sudo with pacaur anymore. As long as pacaur finishes running within the next 15 minutes, it will not have to ask for credentials again.
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Closed 6 years ago.
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I am sorry if this is something obvious but I am new to Linux.
I was trying to set a git bare directory and for this I installed ACL on Ubuntu. Then I ran the following commands:
adduser git
mkdir /repositories
chmod 700 /repositories
setfacl -m defaut:user::rwx /repositories
sudo chown git:git /repositories
Everything was fine until I rebooted the machine. Now I am unable to execute sudo anymore. Everytime I do it as myself I get following message:
[[sudo]] password for Andre:
Sorry, try again
The password I enter is the same I always used, and I don't have any problem to SSH with these account credentials.
Does anyone knows what happened and how to fix it?
I think that the issue was with setfacl. I should have used 'repositories' instead of '/repositories'. In that way I set acl across the root. I ended up reinstalling Linux.
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Closed 5 years ago.
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I'm new to Ubuntu.
I ran the following commands to save files in htdocs folder (to conveniently use XAMPP for programming) without understanding its security consequences:
sudo chown username:groupname /opt/lampp/htdocs
sudo chmod 700 /opt/lampp/htdocs
I would like to undo the file permissions (on the htdocs folder) to what it was before I ran the above commands.
Any help is much appreciated, thanks.
I think there is no way undo chown and chmod. But you can see default permission of these folder in any other machine which has fresh installation or you can install lampp again in different folder. Then change chown and chmod permissions of /opt/lampp/htdocs to default.
For the second one run this command
sudo chmod 777 /opt/lampp/htdocs
I solved the same problem by using this
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Closed 9 years ago.
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I recently changed the permissions around for the /var/www/ directory on my Ubuntu 12.04 machine. Now my user can save to the directory but I get an error whenever I try to run the sudo command stating that my user is not in the sudoers file. I booted up grub to take a look and have tried to run "sudo usermod -G sudo kevin" a few times and get the error cannot lock /etc/passwd/; try again later. Is there any way to re add myself to that group without re-installing Ubuntu?
It sounds like your problem stems from the file system being mounted read-only as it is by default in recovery mode. Try remounting the filesystem in read-write mode using
"mount -o remount,rw /"
Are you sure your system is mounted in read/write mode when you're using GRUB? This can be achieved through the mount -o remount,rw / command.