docker/docker-install

Could not find records for the current user my_user from /etc/subuid

frederico-klein opened this issue · 1 comments

frederico-klein commented

This issue is related to : #120

I am aware of the instructions that say to add the line

my_user:100000:65536

to /etc/subuid and to /etc/subgid

However I am using a system with Kerberos authentication have no root access and need to request for this to be done for me.

I already have 3 entries in this file which are not me like:

some_user1:100000:65536
some_user2:165536:65536
some_user3:231072:65536

Is the line that I should add then 231072+65536:65536 so:

my_user:296608:65536

I wanted to know what exactly this is doing, if there is a security implication (in which case the sysadmin will likely say no), and if I need to change anything since my authentication is done in a different way. Thank you!

AkihiroSuda commented

Is the line that I should add then 231072+65536:65536 so:

my_user:296608:65536

Yes.
This means my_user can behave as UID 296608 - 362143.
So you will have to ask your admin to confirm that nobody on your system is using UID in this range.

Same applies to GID too.

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