On Sun, May 18, 2025 at 10:35:37 -0500, Nicholas Geovanis wrote: > If you mean "what file contains the IP address and hostname of my own > server?": It depends whether you use NetworkManager to configure networking > or the older style. > > In the older style the config file goes in /etc/sysconfig/network-scripts > and contains the NIC name as part of the filename. With NetworkManager the > file has a different format and name and goes in > /etc/NetworkManager/connection-scripts. > There are command-line tools to configure NetworkManager-style like nmtui > and nmcli if you reject GUIs ;-) You may need to install one of them if not > already.
You're thinking of Red Hat, perhaps. Or some other non-Debian distribution. Debian doesn't use /etc/sysconfig/. The standard method of configuring interfaces in Debian uses the ifupdown package, and its configuration files are in /etc/network/. Specifically, see "man 5 interfaces" for details of the /etc/network/interfaces file, or files placed in the /etc/network/interfaces.d/ subdirectory. Debian also offers Network Manager, which presumably works the same as it does in your other distributions. Debian also offers systemd-networkd(8) as a third option. Any given Debian system may use any one of these means of configuring network interfaces. A system may also use a combination of them; for example, it's not uncommon to configure the loopback interface in /etc/network/interfaces, but to configure the wireless interface in NM. Or, one may use systemd.link(5) files to configure the names of the interfaces, and then use /etc/network/interfaces to configure their IP addresses. Lots of options are available, to suit the needs of Debian's extremely wide and diverse user base.
