TokkNet

Linux

YaST2 allegedly without root rights

Tokk DE 318 Wörter ~2 Min.

From time to time I have the dubious pleasure of working with SLES systems. Of course, I also have to interact with yast or yast2 to configure the system and some services. You can think what you like about the philosophy of hiding the actual configuration files behind a GUI, I don’t think much of it - but that’s just a side note.

During my last excursion into the world of this enterprise distribution, I noticed a curious error. I logged into the system, changed my user context to root and started YaST2. I was greeted by the following message:

Kommentare yast2, Error messages, SLES Linux

Deactivate password login via SSH under Ubuntu

Tokk DE 208 Wörter ~1 Min.
Canonical has once again introduced a "great" feature in Ubuntu that overrides the password login settings in the sshd_config if you don’t disable it
Kommentare network, sshd, ubuntu Linux, IT-Security

Unprivileged Binding to Privileged Ports

Tokk DE 180 Wörter ~1 Min.
Normally, only processes running with root privileges can bind to ports smaller than 1024. However, Systemd also allows this for unprivileged processes
Kommentare network, systemd, port Linux, IT-Security

Systemd-Overrides: Customization of system services via drop-in

Tokk DE 522 Wörter ~3 Min.
Systemd offers the possibility to overwrite values from the service files with individual settings, so that the customizations are retained even after updates to the original configuration
Kommentare systemd, Customization Linux