LXC chattr and ulimit - Operation not permitted

May 26, 2018
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We decided to try proxmox ve 5.1 for hosting lxc containers.
We use unprivileged containers.
Faced a number of problems. Several of them were able to decide on their own.
Please tell me how to solve this:

chattr: Operation not permitted
ulimit: error setting limit

The problem occurs even under the root user inside the container.
This does not allow you to work even the simplest things.

For example, the control panel Vestacp on install script vestacp.com
chattr: Operation not permitted while setting flags on /home/admin/conf

/usr/sbin/apachectl: 87: ulimit: error setting limit (Operation not permitted)

OS Debian 8 from the proxmox template
 

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