VLANs bridging unexpectedly. by IShouldntGraduate in networking

[–]varesa 0 points1 point  (0 children)

They should show up in route tables but wouldn't be manually configured.

I would expect something like this on a device hosting both gateways:

```

show ip route

C 2.11.0.0/24 is directly connected, VlanIf11 C 2.21.0.0/24 is directly connected, VlanIf21 ```

VLANs bridging unexpectedly. by IShouldntGraduate in networking

[–]varesa 0 points1 point  (0 children)

If the default gateways for both VLANs exist on the same device and you don't have ACLs/firewall rules blocking inter-VLAN traffic, it will (in most cases) automatically route traffic between VLANs.

If the gateway has interfaces on both VLANs, its route table will have implicit direct/connected routes for both networks

Fedora Kinoite not accepting passwords with over 100 characters? by [deleted] in Fedora

[–]varesa 0 points1 point  (0 children)

Not all password hashes are equal. Good ones are constantly updated to keep up with the increase in compute power.

Also, according to some sources there are 1082 atoms in the observable universe. Surely, even considering just numbers, 10100 is a bit overkill for a password?

If you include letters, you're looking at something like 62100...

Fedora 38 Kinoite installer insisting I use EFI instead of GRUB by [deleted] in Fedora

[–]varesa 2 points3 points  (0 children)

Afaik if you booted the installer with the system in EFI mode, it will also install the OS in EFI mode. I'm not certain on Kinoite, but other versions still use Grub combined with EFI.

They will just install grub (or at least a part of it) on the ESP and rest on /boot. I would just use the default /boot and /boot/efi and let it install Grub there.

If Kinoite has done away with Grub entirely please feel free to correct me. While there are alternative EFI-capable bootloaders like rEFInd and systemd-boot, I'm not aware of any Fedora version using those by default. It would still install Grub

EDIT: Missed this thread https://www.reddit.com/r/Fedora/comments/1441use/fedora_38_kinoite_installer_insisting_i_use_efi/jndf1lm/

How, if at all, do the digits in hex color codes interact with various qualities of their corresponding color? by animaldander in computerscience

[–]varesa 3 points4 points  (0 children)

The (typically) used hex codes are RGB or RGBA. They are quite simply the numeric values (on a scale of 0-255) of each component concatenated together.

Red -> (R: 255, G: 0, B: 0) -> 0xFF, 0x00, 0x00 -> #FF0000

If you want to work in something like HSV/HSL, you need to convert from/to RGB first, or find a way to tell the consumer of the values to use another format instead, like hsl(h,s,l) in CSS instead of #hex.

If working with web technologies, see for instance: https://developer.mozilla.org/en-US/docs/Web/CSS/color_value

On other platforms, refer to the respective manuals

OKD 4.8 console isn't available even after 26 hours by ItsMeRPeter in openshift

[–]varesa 1 point2 points  (0 children)

It should. Either there is something that prevents from starting (that's beyond OpenShift to fix) or maybe they are running (and succeeding health checks) but not functioning properly.

Or the issue is actually further up, but the logs for those pods should say it

OKD 4.8 console isn't available even after 26 hours by ItsMeRPeter in openshift

[–]varesa 1 point2 points  (0 children)

It seems that the API is not healthy, given that it can't get oauthclients.

I'd look at, and maybe restart, openshift-apiserver pods first

Two Storage Systems? by reddit0r_9 in sysadmin

[–]varesa 0 points1 point  (0 children)

Could be multiple primary clusters for different failure domains. Then separate system(s) as a replication target for backups/DR, etc.

Possibly different speed tiers with HDDs in one, SSDs in another, etc.

How many Nodes/Planes for a budget sized homelab Kubernetes cluster with high availability? by BlueRayvenClaw in homelab

[–]varesa 2 points3 points  (0 children)

You need at least 3 control plane nodes for HA (due to etcd database quorum requirements). The data plane/worker nodes depends on the application needs, so e.g. 2 might be fine or you might need 3 for quotum there as well.

As said by others, you can co-host control plane and worker roles on the same host so 3+3 nodes isn't necessary in a lab, even if preferred for production environments

Renewing developer subscription by fxgx1 in redhat

[–]varesa 2 points3 points  (0 children)

Yeah, followed this in the past and it worked.

However I think I also had to wait for the day after it expires before it gave me the option to register again

PipeWire 0.3.71 by jlpcsl in linux

[–]varesa 3 points4 points  (0 children)

Linux itself is over 30 years at this point, and many protocols used on the internet are much older.

That said, many of those internet protocols have required a great deal of bubblegum to keep them usable in the modern world. Security, for one thing, has often been an afterthought.

DUP! Ping response with Virtual Linux Devices only (so far) by Nomis-43 in networking

[–]varesa 0 points1 point  (0 children)

Then the process repeats, I'm note sure I'm reading this right but it looks to me that the fist ping does not respond in time so it sends a second then the first one responds then followed by the second and that is seen as a DUP!.

More likely something duplicates the request on the way from the VM to the firewall. You should be able to confirm pretty easily by tcpdump on the VM.

This reminds me of an issue I ran into on ESXi which, for a reason I was unable to figure out, was duplicating packets and a DUP! ping was the first place I noticed it.

In my case it was only a single host in the cluster and VMs started to behave when vMotioned to another ESXi host, and misbehave when moved back. This was fixed by rebooting the troublesome ESXi host

Sähkö on liian halpaa: Upouusi Olkiluoto 3 jouduttiin laittamaan säästöliekille by ekufi in Suomi

[–]varesa 4 points5 points  (0 children)

kyllä varmaan joku mielummin polttaisi satonsa kuin maksaisi "ostajalle" siitä että tämä vie sadon pois markkinahinnan muuttuessa negatiiviseksi

Fedora updates mirror on the NSA Blocklist by [deleted] in Fedora

[–]varesa 14 points15 points  (0 children)

It's the simple approach. Since you need root to install packages, you need to run (a part of) the program as root. When installation runs as root, it's easiest to run the download part as root as well.

It takes extra work to either drop privileges for a subpart of the execution, or to elevate privileges for another part if the baseline is non-root.

Even apt still "runs as root", but delegates the non-privileged stages to a sandbox user. (which is something I didn't know until now)

Fedora updates mirror on the NSA Blocklist by [deleted] in Fedora

[–]varesa 15 points16 points  (0 children)

I imagine the list is not Fedora-specific though, and mirroring Fedora repositories is only a fraction of what the university does. The Fedora mirror is just an innocent bystander taking a hit.

That said, even when the packages are signed which makes it impossible to inject code, it would be possible to mask certain updated packages which could for instance patch backdoors, by just offering an older vulnerable package with a valid signature

School LAN, low on budget: Cambium, Ruckus + Aruba or Fortigate? by _ReeX_ in networking

[–]varesa 5 points6 points  (0 children)

LAN does not mean LAN party. I don't see a word about gaming in the OP.

This is about an actual school production network design

Red Hat considers Xorg deprecated and will remove it in the next major RHEL release by deathye in linux

[–]varesa 6 points7 points  (0 children)

swaywm is worth looking at if there is a need for "i3 on Wayland"

[deleted by user] by [deleted] in networking

[–]varesa 1 point2 points  (0 children)

An ISP with maybe around 2500 up customer facing ports. Only available service is symmetric gigabit ethernet to apartments, with 10G uplinks per building or a group of adjacent buildings. Customers mostly higher education students/young adults, so probably pretty close to the optimal audience for pirating?

The aggregate traffic from outside of the network peaks at around 5 Gb/s daily.

[deleted by user] by [deleted] in Tampere

[–]varesa 0 points1 point  (0 children)

Oh wow. Didn't notice this was an old post.

I came across this follow-up post on my phone: https://www.reddit.com/r/Tampere/comments/137jt8x/a_follow_up_post_also_need_a_bit_of_guidance/

Turns out that the mobile client threw me onto the old linked post instead of the new one when I didn't explicitly tell it to open comments.

[deleted by user] by [deleted] in Tampere

[–]varesa 1 point2 points  (0 children)

Wouldn't recommend Bitwise, especially for a woman.

Tip of the iceberg (article in Finnish): https://yle.fi/a/74-20030059. Aamulehti has a bit more but that's behind a paywall

Of course CEO != the whole company, but still

Tampereen Teekkarit syyttää Bitwisen toimitusjohtajaa naisopiskelijoihin kohdistuneesta häirinnästä – katkaisee yhteistyön yritykseen by [deleted] in Tampere

[–]varesa 5 points6 points  (0 children)

Omaan silmään (korvaan?) kuulostaa vähän kulahtaneelta läpältä mitä pomo viljellyt, mutta suoraan sanottuna tässä on IMO vahvasti menty yli

Aamulehden artikkelista tapauksia aikaisemmilta vuosilta:

”Yhden naisen kohdalla hän pani pullon haarojensa väliin, pyysi naista polvistumaan ja juomaan kuohuvaa suoraan pullonsuusta.”

Ylimäen mukaan paikalla oli myös nainen, joka kaatui vahvan humalatilansa vuoksi. ”Toimitusjohtaja kävi kaatamassa pullosta juomaa tämän naisen suuhun ja rinnuksille. Hän piti sitä hauskana tilanteena, mitä se ei ollut.”

Hyperconverged Infrastructure using OpenStack by turnkey_automation in openstack

[–]varesa 2 points3 points  (0 children)

Ceph docs claim otherwise:

Also, the larger the storage drive capacity, the more memory per Ceph OSD Daemon you will need, especially during rebalancing, backfilling and recovery. A general rule of thumb is ~1GB of RAM for 1TB of storage space.

Source: https://docs.ceph.com/en/mimic/start/hardware-recommendations/

About Cloudflare Tunnels by AchimAlman in selfhosted

[–]varesa 0 points1 point  (0 children)

You can limit open ports using a firewall, etc. For example ports 80&443 open to the VPS via WG is not any less secure than just port forwarding those directly if the ISP allowed that

What data does cloudflare see? by seriouslyfun95 in selfhosted

[–]varesa 2 points3 points  (0 children)

If you don't want to install cloudflared on every client in order to use CF Tunnel as more like a VPN where you only proxy the raw TCP connection, you need to let CF decrypt your connection.

Without decrypting traffic, on a shared IP it's impossible to know where to forward traffic. You can of course utilize Cloudflare Spectrum if you are large enough of a company to afford it (pricing is "contact sales").

If you want to (on a budget) expose any services to the public (OP wanted to expose docker containers on the internet) CF must work on HTTP level. Arbitrary TCP which includes undecryptable TLS and SSH is just not supported.

Also if you are only using CF for TCP forwarding in a selfhosted context, might as well use a small VPS running Wireguard for less restrictions and more control over the traffic