Questions tagged [uid]
The uid tag has no summary.
85 questions
4 votes
1 answer
425 views
On Debian, XFS, I can edit a file of another user with permissions 644 without ACL
today to my surprise I have noticed that I may delete a file that was created by a user with UID 100024 while being logged to my normal user (UID 1000) shell. The UID 100024 is a subuid, it is how the ...
- 153
3 votes
0 answers
195 views
Why can't root bypass permissions in an ID-mapped mount?
Why does global root (root in the initial user namespace) not have the ability to read all files regardless of permission when ID-mapped mounts (see "ID-mapped mounts" under man 2 ...
1 vote
2 answers
508 views
What should the group of a user in Linux be to access samba?
I have a friend who works at a business where the IT guy has passed away and I am trying to help them until they can hire someone else. It is a workgroup networked with a Linux server. They recently ...
1 vote
0 answers
580 views
What causes `newuidmap` to be dissallowed in new user namespace?
I expected uid=0(root) gid=0(root) groups=0(root) to be the output of both $ rootlesskit id $ unshare -U bash -c 'newuidmap $$ 0 '"$(id -u)"' 1; id' however the somewhat more verbose -x ...
- 15.3k
0 votes
1 answer
567 views
Which UID/GID is free for new package
After reading https://unix.stackexchange.com/a/222376/246754 How rpm ensure that no uid/gid clash with each other ? What I am looking is similar to https://github.com/NixOS/nixpkgs/blob/...
- 103
0 votes
2 answers
154 views
Loop over users problem
I am struggling with a loop over users id, i want to list all the users in /etc/passwd whose id are greater than 999, it doesn't recognize my if .. fi sentence and it is important to say that I am ...
11 votes
2 answers
4k views
Is there a file besides /etc/passwd that contains/defines my UID?
Trying to learn about UIDs and GIDs. Various online reading led me to believe that my UID is saved in /etc/passwd, but this doesn't appear to be the case on a server where I work: $ whoami user1 $ cat ...
- 1,957
0 votes
0 answers
1k views
undo usermod for root?
At some point where I wanted to do sudo usermod -v 1000-1000 USER sudo usermod -w 1000-1000 USER I accidentally applied both these commands to root. According to the documentation I can undo these ...
- 579