โ RNS 1.4.2 released https://pypi.org/project/rns/
๐ฌค rns.recipes
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โ Packaging nsdand xmdon NixOS โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
Started by p1ld7a ยท 1mo ago ยท 8279b6a997b08071
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
post-1
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โ p1ld7a #1 โ
โ 8279b6a997b08071 โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 1mo ago
Hello,
I have been contributing to the [ NixOS/nixpkgs
](https://github.com/NixOS/nixpkgs) project as a maintainer for several years.
Although I only started exploring Reticulum properly about 2 weeks ago (spoiler: I love
it!), contributing support for the rnsd and lxmd services
to NixOS project felt like an obvious next step.
However, I have reached a roadblock, and I have not been able to find a clear answer in
the documentation.
My intention is to run rnsd and lxmd as 2 fully
independent systemd services, each with DynamicUser=true .
Running rnsd this way is straightforward, and I have encountered no
issues with it. However, I am unsure how lxmd should be configured so
that it can communicate with the existing rnsd daemon.
What is the minimal lxmd configuration required to connect to and use an
already-running rnsd instance?
I noticed that we could use a shared instance, using socket or TCP. In that case, what is
the minimal configuration of lxmd to use to connect using socket or TCP ?
Find my PR at https://github.com/NixOS/nixpkgs/pull/530406
Thank you in advance for your help !
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post-2
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โ falafool #2 โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 1mo ago
from my understanding:
--rnsconfig flag exists for the existing rns season or rnsd deamon
--config flag exists for additional programs that should connect to the session
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post-3
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โ falafool #3 โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 1mo ago
session* no season
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post-4
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โ falafool #4 โ
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โธ 1mo ago
https://reticulum.miraheze.org/wiki/RNS#Security_hardening
looks interesting
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post-5
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โ p1ld7a #5 โ
โ 8279b6a997b08071 โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 1mo ago
Thanks for the link. Using an additional BackboneInterface is indeed a
neat idea!
When hardening services with systemd using DynamicUser and
StateDirectory , each daemon runs under its own dynamically allocated, unprivileged
user and owns its dedicated state directory, typically /var/lib/<service>
.
As a result, the user running rnsd cannot access the state directory
owned by lxmd , and vice versa. Therefore, having lxmd use
--rnsconfig <path> to access the configuration or state of the
rnsd service is not really a viable option.
This is why I would like to understand precisely how lxmd can be
configured to use an existing, shared rnsd instance while keeping both
services properly isolated.
The more details I can gather about the expected communication mechanism and minimal
configuration, the better I can design the corresponding NixOS services instead of
relying on an ad hoc setup.
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post-6
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โ falafool #6 โ
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โธ 1mo ago
Cool although I'm not a NixOs user would be awesome for other distros (like arch) too...
Can't you use a shared directory like /etc/?
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post-7
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โ falafool #7 โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 1mo ago
BindPaths or BindReadOnlyPaths seem to be interesting in that regard. You can configure
it to only be allowed to read in the shared directory
But I think you're more knowledgeable in that regard.
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post-8
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โ p1ld7a #8 โ
โ 8279b6a997b08071 โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 1mo ago
> Can't you use a shared directory like /etc/?
I have been trying, sadly rnsd and lxmd need to have
write access to that directory, so this is not a viable option.
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post-9
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โ p1ld7a #9 โ
โ 8279b6a997b08071 โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 1mo ago
I have to admit that I don't really like the idea of "sharing" a directory between 2
services. If there's a better alternative, I will definitely use that.
When everything will be done, running rnsd and lxmd
services will boil down to adding:
{
services.rnsd = {
enable = true;
settings = {
reticulum = {
enable_transport = true;
share_instance = true;
instance_name = "default";
shared_instance_type = "unix";
};
interfaces = {
auto = {
type = "AutoInterface";
enabled = true;
};
};
};
transportIdentityFile = "<path-to-transport-identify-file>";
extraGroups = [ "dialout" ];
};
services.lxmd = {
enable = true;
settings = {
propagation-node = {
autopeer = true;
};
};
rnsd = {
settings = {
reticulum = {
is_shared_instance = true;
enable_transport = true;
instance_name = "default";
shared_instance_type = "unix";
};
interfaces = {
auto = {
type = "AutoInterface";
enabled = true;
};
};
};
transportIdentifyFile = "<path-to-transport-identity-file>";
};
identityFile = "<path-to-identity-file>";
};
networking.firewall.allowedTCPPorts = [
4242
];
}
This snippet is what I am already using on [my
server](https://github.com/drupol/infra/blob/master/modules/reticulum/reticulum-server.nix
) successfully so far... and you can see that the only way to get lxmd
use the shared rnsd instance is to use the same rnsd
config file in both services.
I am pretty sure there's a better way to do that.
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post-10
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โ p1ld7a #10 โ
โ 8279b6a997b08071 โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 1mo ago
I added some help on how to setup the services:
https://github.com/NixOS/nixpkgs/pull/530406
Rendered views:
โข rnsd:
https://github.com/drupol/nixpkgs/blob/push-mntwnvrylymq/nixos/modules/services/networking
/rnsd.md
โข lxmd:
https://github.com/drupol/nixpkgs/blob/push-mntwnvrylymq/nixos/modules/services/networking
/lxmd.md
Comments and feedback are more than welcome.
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