ChocolateFrostedSugarBombs

joined 1 year ago
sorted by: new top controversial old
Network topology and some questions. in c/homelab@lemmy.ml
[–] ChocolateFrostedSugarBombs@lemmy.world 1 points 18 hours ago

Ohhh that's interesting, I forgot about those DAC cables. Although I don't know if that would work in this case because the LAN ports in the Netgate are already RJ45 ports not a SFP port. Unless they make a DAC that is SFP+ on one side and RJ45 on the other...

Network topology and some questions. in c/homelab@lemmy.ml
[–] ChocolateFrostedSugarBombs@lemmy.world 1 points 18 hours ago

Ah yeah I see. I didn't design the diagram to a specific layer but if I had to choose one after the fact I guess this would be Layer 1 honestly. I'm really just looking for the physical interconnection of devices and making sure I don't have a path out of the network that doesn't go through the Netgate.

But more specifically, I was looking for information on if the C1300 and the Netgate can communicate on the ports I've put in the diagram or if the mistmatch in speed ratings for the ports would be a problem. As well as if the SFP+ port on the C1300 can even be used as a connection like that. In their documentation, Cisco has an example of use for those ports as stacking ports to other switches. I'll only have the one and won't need to stack any other so I was looking to see if the SFP+ ports can be used for non-stacking purposes.

11
Network topology and some questions. (lemmy.world)
 

Hey all,

I have some questions and this community has been great with my other ones, I'm hoping you can help me out with these too.

This is the diagram of how I think I want my physical network laid out.

Hardware:

The patch panel has LAN cables I installed in the walls on ports 1-20. The ISP feed comes into the patch panel on port 21.

I was looking at getting a Cisco CBS-220 but I found out that those are EOS/EOL and the Catalyst 1200/1300 replaces them. Also that the C1200/1300's aren't actual Catalyst switches but that's beside the point. I couldn't find exact stencils for the C1300 but just know the Catalyst in the picture is supposed to be a 48 port C1300 with 10G SFP+ ports on the right side.

The Netgate is an 8200. According to Netgate's specs, the 8200 LAN ports operate at 2.5G and if I wanted faster, I'd have to upgrade to the 8300 plus some expansion cards. No need for that.

Questions:

  1. Does this diagram make sense? I want everything in my LAN to be protected and controlled by the Netgate. By connecting the switch to the LAN port of the Netgate and then the WAN of the Netgate to the internet feed, I feel like that accomplishes that goal.

  2. Can the C1300 be connected like this? I would need to get a 10G SFP+ for ethernet, not fibre, which I haven't looked for yet. I know with fiber you have to be careful to match both sides of the connection with the same speed otherwise they won't work. Does the same hold true for ethernet SFP's? Meaning, if I find a 10G ethernet SFP+ (since that's what the Catalyst port is rated for) and plug it into a cable going to the 2.5G LAN port on the Netgate, will they communicate properly?

Do I understand UPS power correctly? in c/homelab@lemmy.ml
Do I understand UPS power correctly? in c/homelab@lemmy.ml
[–] ChocolateFrostedSugarBombs@lemmy.world 3 points 1 week ago (4 children)

Yeah so that's kinda what I was getting at. If I put in three NUCs that pull 330 watts, that's 990 watts to the NUCs by itself. If the UPS can only provide 900 watts, then pulling more than that just wouldn't work right? The UPS would essentially discharge in seconds right?

Do I understand UPS power correctly? in c/homelab@lemmy.ml
[–] ChocolateFrostedSugarBombs@lemmy.world 1 points 1 week ago (1 children)

I was looking at a ROG NUC like this one:

https://www.microcenter.com/product/683299/asus-rog-nuc-970-rn14srku9189aui-full-system-mini-pc_Hatchfeed

It states 330 watts under the power rating. And to be clear, this part of the build isn't going to happen for a while so I was just looking up some NUC examples. I was also looking at full 1U servers too.

But to the maximum ratings portion of your response. Even if 330 is the max, don't you want to base your predictions off of that to make sure it can handle things at max draw? Totally get that if you plan for less, chances are you won't ever hit 330 but you're banking on the possibility that you won't instead of planning for if you do?

21
Do I understand UPS power correctly? (lemmy.world)
 

Hey all,

Building out my lab, I was going to get a rackmount UPS. The one I'm looking at is a Cyberpower OR1500LCDRM1U. It says it offers:

1500 VA, 900 W, 120 V

Do I understand correctly that all I need to do is find the Wattage rating for each of the components I want to plug in and add them up? My components right now are pretty light, only about 120 watts total. But soon I'm going to expand and build out a Nutanix CE cluster with 3 nodes and a rack of drives. I was looking at using some NUCs but they are each rated at 330W.

So that would mean even the NUCs by themselves would over-provision the UPS right? Then on top of that I would still need all the other equipment in the rack to be powered.

Am I understanding this correctly or is there something I'm missing?

Choice between Cisco Catalyst 1200 and Cisco Business 220? in c/homelab@lemmy.ml
[–] ChocolateFrostedSugarBombs@lemmy.world 2 points 1 week ago

Yeah that's kinda where I'm coming down too. They both also do IPv6 Multicast which I'll use briefly later on when I start setting up the Nutanix CE section of the build but I mean...they look so similar I may as well save the $45.

2
Choice between Cisco Catalyst 1200 and Cisco Business 220? (lemmy.world)
 

Hey everyone,

I'm back with another question. I'm looking at switches and have it narrowed down to two options:

Cisco Catalyst 1200-24T-4X

Cisco Business CBS220-24T-4X

I'm going to have a Netgate as my main router in the house but I am also going to have a dev environment that I don't necessarily want interacting with my regular network. Originally I was thinking of just getting an unmanaged switch but I might like having some light VLAN capabilities of a managed switch that I can have the option of using.

I don't have any use right now for PoE devices so I don't need the switch to do that. I'm having a hard time figuring out exactly what the differences are between the CBS model and the Catalyst model.

It's a difference of about $45. As far as I can tell, the main benefit to the Catalyst is Cisco's Cloud dashboard. I don't need or want that. I'll handle everything through a VPN connection back to the house and honestly, I don't see myself needing to interface with the switch much after I get it set up. If the cloud dashboard is the only difference then I'll just save the $45 and get the CBS model.

But I wanted to ask you all if there's something else I'm missing that might make the Catalyst a better choice?

Thanks!--

1
What planning tool do you use? (lemmy.world)
 

Hey all,

I'm looking to build a small half rack server set in my house and was wondering if there were any tools that let me build out a solution? I'm worried I'm going to forget something and just wanted it all listed out as I think of things.

Yeah I can probably build it out and keep track of it in Obsidian or Excel or something, I was just curious if there were server builder tools like there are PC builder tools?

I mainly want to make sure I get a rack big enough for the few pieces I want to put in it as well as I want to try to calculate the power draw and BTU output which I imagine will be pretty minimal. I just would like hard numbers to know for sure.

Thanks!

If there was any TV show that was cancelled or cut short that you could see the planned continuation/ending of, which would you choose? in c/asklemmy@lemmy.world
1
[Help] Can't install MongoDB on RHEL 9 due to libssl, libcrypto, and GPG issues. (lemmy.world)
 

Hello all,

I'm deploying an Amazon EC2 instance of RHEL and attempting to install MongoDB via yum.

Following the guide provided by MongoDB, if I place only the repo file for either mongodb 7 or 8, the install fails. If I place both repo files, it still fails.

If only 7's repo file is present, it fails with 7's GPG key.

MongoDB Repository                                                                      434  B/s | 1.6 kB     00:03
Importing GPG key 0x1785BA38:
 Userid     : ""
 Fingerprint: E588 3020 1F7D D82C D808 AA84 160D 26BB 1785 BA38
 From       : https://pgp.mongodb.com/server-7.0.asc
error: Certificate 160D26BB1785BA38:
  Policy rejects 160D26BB1785BA38: No binding signature at time 2025-05-28T14:23:03Z
Key import failed (code 2). Failing package is: mongodb-database-tools-100.12.1-1.x86_64
 GPG Keys are configured as: https://pgp.mongodb.com/server-7.0.asc
Public key for mongodb-mongosh-2.5.1.x86_64.rpm is not installed. Failing package is: mongodb-mongosh-2.5.1-1.el8.x86_64
 GPG Keys are configured as: https://pgp.mongodb.com/server-7.0.asc
Public key for mongodb-org-mongos-7.0.20-1.el9.x86_64.rpm is not installed. Failing package is: mongodb-org-mongos-7.0.20-1.el9.x86_64
 GPG Keys are configured as: https://pgp.mongodb.com/server-7.0.asc
Public key for mongodb-org-server-7.0.20-1.el9.x86_64.rpm is not installed. Failing package is: mongodb-org-server-7.0.20-1.el9.x86_64
 GPG Keys are configured as: https://pgp.mongodb.com/server-7.0.asc
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'yum clean packages'.
Error: GPG check FAILED

If only 8's repo file is present, it fails with libssl and libcrypto errors:

Excerpt:

[...]
 - cannot install the best candidate for the job
  - nothing provides libcrypto.so.1.1()(64bit) needed by mongodb-org-server-8.0.0-1.el8.x86_64 from mongodb-org-8.0
  - nothing provides libcrypto.so.1.1(OPENSSL_1_1_0)(64bit) needed by mongodb-org-server-8.0.0-1.el8.x86_64 from mongodb-org-8.0
[...]

If both 7 and 8's repo file is present, it fails on 7's GPG key again.

I've tried manually importing both 7 and 8's GPG keys with:

rpm --import "https://pgp.mongodb.com/server-8.0.asc"

and

rpm --import "https://pgp.mongodb.com/server-7.0.asc"

The 8 import seems to work but the 7 import fails.

The thing is, last week, I successfully installed MongoDB on RHEL 9 using these exact same steps. I'm just doing it again now to capture documentation for work and it's failing.

So my questions are: What the hell?

Seriously though, what can I do to fix this? Is this a problem with MongoDB? Do they need to update their keys?

Thanks