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Why is newgrp asking for a password?
newgrp is a vestigial command from the days when the kernel would only keep track of one group at a time, so if you were a member in more than one, you had to use this command to switch groups. If you are not listed as being a member of the group, the group may be assigned a password that you can enter to switch to it.
What does newgrp mean in linux?
current group ID
newgrp is used to change the current group ID during a login session. If the optional – flag is given, the user’s environment will be reinitialized as though the user had logged in, otherwise the current environment, including current working directory, remains unchanged.
What does Newgrp Docker do?
When the docker daemon starts, it makes the ownership of the Unix socket read/writable by the docker group. Either do a newgrp docker or log out/in to activate the changes to groups. to check if you can run docker without sudo.
What is root password in Docker container?
The password is ‘ubuntu’ for the ‘ubuntu’ user (at least in docker for ubuntu :14.04. 03).
Should docker run as root?
Most containerized processes are application services and therefore don’t require root access. While Docker requires root to run, containers themselves do not. Well written, secure and reusable Docker images should not expect to be run as root and should provide a predictable and easy method to limit access.
Why do I need sudo for docker?
By default, when you install docker, the only user that is added to it is root . You can add your own user to this group if you want to run docker containers from it. That is, anyone who can run Docker commands is all but root already. Requiring sudo-level access to get access to Docker is a sound security restriction.
Why does newgrp root ask for a password?
If a user uses the newgrp command but is not a member of the target group, the shell prompts for the group password. After you enter the correct group pass- word, the new effective primary group is set. i dont understand this,”a user has to be a member of that group” isnt that the point of this command to add a member to the root group?
Where do I enter the group password for newgrp?
Location: Somewhere in my head. To be able to use the newgrp command, a user has to be a member of that group. mand. If a user uses the newgrp command but is not a member of the target group, the shell prompts for the group password. After you enter the correct group pass- word, the new effective primary group is set.
What does newgrp mean in CentOS 6.3?
My system is centos 6.3. newgrp is a vestigial command from the days when the kernel would only keep track of one group at a time, so if you were a member in more than one, you had to use this command to switch groups. If you are not listed as being a member of the group, the group may be assigned a password that you can enter to switch to it.
What happens if there is no group password in Linux?
If the user is not root, he or she is prompted for a group password if: the user is not listed as a group member, and the group has a password. If there is no group password set, and the user is not listed as a member of the group, the user is denied access.