Re: [gentoo-user] Handbook and question about manual network setup

[Michael <confabulate@kintzios.com>]

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On Friday, 19 April 2024 17:26:43 BST Dale wrote:
> Michael wrote:
> > On Friday, 19 April 2024 15:05:47 BST Dale wrote:
> >> Anyway, while investigating this, I realized the network setup is not
> >> like on my old rig.  Heck, I couldn't even figure out how to restart it
> >> other than switching to the boot runlevel and back to default, or
> >> rebooting.  After a bit, I think I can restart DHCP and it restart the
> >> network.  I figured out the cable was unplugged before trying that.  I'm
> >> wanting to set up the NAS box network the same way as my main rig.
> >> That's the old manual way.  I went back to the install handbook, that's
> >> what I followed when installing on my main rig.  Thing is, it has been
> >> updated and the old way isn't all there.  I followed what little bit is
> >> there but it defaults back to the new way.  I'm sure I'm missing some
> >> file I need to edit but I can't figure out which one it is.  So, is
> >> there a way to get the old instructions again?  The ones I followed
> >> several years ago for my main rig?  I tried searching but it seems they
> >> all gone.  Maybe there is a place I'm not aware of tho.  Basically, I
> >> want to be able to start/stop/restart enp3s0 as a service and have it in
> >> a runlevel.
> > 
> > Without knowing what you refer to as 'The Old Way' Vs 'The New Way', or
> > how
> > your 'main rig', Vs your 'old rig' may have been configured, I'll try to
> > make a guess, or two:
> > 
> > 1. Old Way = netifrc
> > 
> > You configure /etc/conf.d/net using the well commented example provided
> > in:
> > 
> > /usr/share/doc/netifrc-*/net.example.bz2
> > 
> > You symlink your interface enp3s0 to the net.lo netifrc init script and
> > add it to the default runlevel:
> > 
> > ln -s /etc/init.d/net.lo /etc/init.d/net.enp3s0
> > rc-update add net.enp3s0 default
> > 
> > then (re)start, check the status, or stop your newly configured interface,
> > e.g.:
> > 
> > rc-service -v net.enp3s0 status
> > rc-service -v net.enp3s0 restart
> > 
> > More detailed info than you should ever need and all on one page, is
> > provided here:
> > 
> > https://wiki.gentoo.org/wiki/Netifrc
> > 
> > 
> > 2. New Way = DHCP (?)
> > 
> > Although dhcp can be configured as a fallback option within
> > /etc/conf.d/net in addition to static addresses, gateways, etc., it can
> > also be set up as a standalone service without netifrc.  Emerge dhcpcd
> > and add it to the default runlevel.
> > 
> > If you have set static IP address(es) at your home router for the old box
> > and its MAC address, then that's all you need to do before you run:
> > 
> > rc-service -v dhcpcd restart
> > 
> > If you prefer to not set up a configuration for your old rig on the
> > router,
> > then you can add a static IP address in your /etc/dhcpcd.conf.
> > 
> > Again, more  info than you should need is provided here:
> > 
> > https://wiki.gentoo.org/wiki/Dhcpcd
> > 
> > HTH, otherwise ask if you get stuck.
> 
> Rebooting the NAS box improved things.  See reply to Matt.  By old way,
> I mean using a symlink to net.lo with the interface/card name such as
> enp3s0 to start/stop/restart the service.  It still uses DHCP to get
> connection info but I'd also like to specify the IP address if I can.  I
> like to set those so that they don't change even if I move cables
> around.  Main rig, NAS box, cell phone and printer.  The printer really
> gets upset when something changes. 
> 
> I think I should have used the word "older" instead of "old".  ROFL  :-D 
> 
> Dale
> 
> :-)  :-) 

OKey, dOKey, you can:

Configure static IP addresses for all your LAN devices on your home router.  
Then set your devices to use DHCP to obtain an address from the router when 
they come up.  With a large number of devices which often change (e.g. guests 
in a hotel) this is inadvisable, but with a home LAN with a handful of devices 
this is not too much of a chore.

Alternatively, you can configure each of your devices with static IP 
addresses.  The URLs I sent you explain how to do this.  For a couple of PCs 
this should take less than 5 minutes, inc. restarting the NIC service, or a 
reboot to make sure all works as intended on statup.

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