Network configuration from the gentoo handbook?

orion777

Good day. The problem is that gentoo system has NetworkManager. NetworkManager starts dhclient (if required) and stores its configuration in the /etc/NetworkManager/system-connections (if you do it through, for example, nmtui).
However, network configuration file /etc/conf.d/net , as required by the handbook https://wiki.gentoo.org/wiki/Handbook:X86/Full/Networking#Using_the_old-style_kernel_naming , does not exists at all (whereas /etc/init.d contains some scripts inside and I don't know does the commands like ln -s net.lo net.eth0 were implemented).

I wish to build my own router as per https://wiki.gentoo.org/wiki/Ethernet_plus_WiFi_Bridge_Router_and_Firewall . This handbook also use /etc/conf.d/net (which does not exists in my system) instead of NetworkManager conf files.

So, what I have to do in order to implement instruction? Delete NetworkManager at first and then implement this https://wiki.gentoo.org/wiki/Handbook:X86/Full/Networking#Using_the_old-style_kernel_naming and finally this https://wiki.gentoo.org/wiki/Ethernet_plus_WiFi_Bridge_Router_and_Firewall ?

NeddySeagoon · Posted: Sat Jul 21, 2018 9:55 am Post subject:

orion777,

Choose NetwerkManger or the init scrips. Trying to use both will get you in a mess as they are unaware of each other.

The interface names are not important. Discover what they are and use them consistently everywhere.
I prefer the kernel naming because that's what I learned a long time ago.

The "Persistent Device Naming" has just swapped one set of corner cases for another. Its just different rather than an improvement.

Both ways work and are equally correct.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

orion777 · Posted: Sun Jul 22, 2018 5:56 am Post subject:

So I can use eth0 / wlan0 names in the scripts, right?
I will try to use your gentoo on rpi3 to build the router with MPTCP implementation, want to see will it work or not.

charles17 · Advocate Joined: 02 Mar 2008 Posts: 3686

NeddySeagoon · Posted: Sun Jul 22, 2018 9:53 am Post subject:

orion777,

To get the old names add

orion777 · Posted: Mon Jul 23, 2018 5:34 pm Post subject:

NeddySeagoon · Posted: Mon Jul 23, 2018 7:02 pm Post subject:

orion777,

It would go in /boot/cmdline.txt on a Pi but its not required.
There is nowhere to get the Persistent Interface names from so you will always have ethX and wlanY style names anyway.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

krinn · Watchman Joined: 02 May 2003 Posts: 7471

Ok so it's not need for that user, but for the story:

orion777 · Posted: Tue Jul 24, 2018 8:37 am Post subject:

Good day! Now I can't force name server to work.. Static or DHCP configuration returns same result (NetworkManager has been removed from rc)

younggeorge · Posted: Wed Jul 25, 2018 12:04 pm Post subject: Gento Handbook

Gentoo's RC system now knows about that interface. All the network interfaces are configured in /etc/conf.d/net. Below is a sample configuration for DHCP and static addresses.

freke · Posted: Wed Jul 25, 2018 1:28 pm Post subject:

NeddySeagoon · Posted: Wed Jul 25, 2018 5:51 pm Post subject:

orion777,

One step at a time. What does

orion777 · Posted: Thu Jul 26, 2018 7:15 pm Post subject:

So, I put back NetworkManager into autostart. As can be seen, the ping is able to ping google.lv even after NetworkManager has been stopped, but the system was not rebooted.

NeddySeagoon · Posted: Thu Jul 26, 2018 9:31 pm Post subject:

orion777,

orion777 · Posted: Fri Jul 27, 2018 7:36 am Post subject:

krinn · Watchman Joined: 02 May 2003 Posts: 7471

you lack loopback in boot runlevel?
you should have localhost route define in route too.

you should define your nameserver in /etc/resolv.conf ; and this only for the reason to see if someone is affecting your name servers definition (if you set them in resolv.conf you will see easy if someone alter its content).

orion777 · Posted: Sun Jul 29, 2018 6:37 am Post subject:

Since the target was to implement router https://wiki.gentoo.org/wiki/Ethernet_plus_WiFi_Bridge_Router_and_Firewall , i was tune dnsmasq. This enables access to DNS servers both for the LAN and local system itself.
I understand that the use of dnsmasq does not solve problem "tuning system out of the box per https://wiki.gentoo.org/wiki/Handbook:X86/Full/Networking#Using_the_old-style_kernel_naming"