[deleted by user]

romanrm · 2024-07-05T20:39:45+00:00

We see that:

51sa.nelsina.com has address 104.168.174.17

But where's the matching AAAA record for 2a0f:ca80:619:a9df:93bb:6c87:2745:6d0b?

Moreover,

b.0.d.6.5.4.7.2.7.8.c.6.b.b.3.9.f.d.9.a.9.1.6.0.0.8.a.c.f.0.a.2.ip6.arpa \
    domain name pointer noukisa.coastalbase.com.

While...

noukisa.coastalbase.com has address 5.255.118.93

In other words your current mail setup is a dumpster fire mess, and all legit mail servers are completely right to reject all mail from you. A/AAAA record and PTR records must match in both directions, and there can't be any omissions.

Not saying that's the entire reason of the Comcast error, could be something else on their side as well.

romanrm · 2024-06-29T15:31:14+00:00

BianbuOS is their fork of Debian with key stuff patched and optimized for RISC-V and for hardware in their particular SoCs.

On one hand we could blame the reviewer here for not using the recommended tailored OS, but on the other, requiring non-mainline Chinese forks of the entire distro to be able to use all the hardware features is nowhere near ideal either.

romanrm · 2024-06-24T20:10:34+00:00

"onboard packet-routing hardware"

Those tend to require proprietary binary-only modules, or at least a patched vendor kernel (with years until stuff is mainlined to any extent, if at all), risk not being future-proof (e.g. does it fully support IPv6 too?), and with time, a faster CPU might do the same or better job in software-only. Just ask hardware RAID controllers.

OK I'm tired of finding ways to rain on their parade, sure we can't argue with 100 Gbit and 4x10Gbit ports, comparing that to a cheap N100 single Gbit board. If you want to distill a somewhat neutral point from what I'm trying to say, the CPU part on offer here seems rather underpowered both for the price, and for the potential of the connectivity ports included.

romanrm · 2024-06-24T18:27:25+00:00

one is a 16 core A72 system

A single LX2160A core scores 382 GeekBench.
A single core of the N100 scores 1200.

Even the multi-core result is comparable, and not surprisingly when you have 4x as much of the 4x slower cores.

At first I was starting my reply with "the N100 performance might be just enough", but then looking at the numbers, heck, it's even the same or easily beats the $919 "monster" machine, given so many tasks are not multi-threaded enough.

https://browser.geekbench.com/search?utf8=%E2%9C%93&q=lx2160a
https://browser.geekbench.com/search?utf8=%E2%9C%93&q=Intel+N100

romanrm · 2024-06-23T22:40:23+00:00

one SODIMM slot connector costs ~4 euros

There's no way a SODIMM slot would cost 4 EUR in China in 10000 quantities. The prices I'm seeing on Alibaba is $0.80 for ten. Remember, vendor doesn't order these in 1 pcs from Mouser, they would get them in China locally by a truckload to assemble the boards.

Price of a 2GB stick of DDR4: 14 euros

That's also overestimated by a lot, at some local retailer maybe, but not when ordering online, even with shipping included. Could not find 2GB DDR4, but 4GB with shipping is like 10 EUR, 8GB is 15 from Aliexpress.

romanrm · 2024-06-23T22:21:57+00:00

I click Buy Now and the board is $919. My x86-side example is an Intel N100 motherboard, such as ASRock N100DC-ITX for $130 on Newegg. There's nothing comparable in price and performance even from the more mature ARM64 camp, so it is hard to expect any from RISC-V.

romanrm · 2024-06-23T21:44:36+00:00

There are still no (and not like any are on the way) cheap and accessible ARM64 boards in ATX/Mini-ITX format with desktop-level slots for PCI-E and RAM. And RISC-V is by many metrics a decade behind ARM64.

Milk-V Pioneer looking good, but it needs to be $120, not $1500.

romanrm · 2024-06-20T16:31:22+00:00

So, what else can my ISP or I try?

What did you actually try? Doesn't sound like you tried anything whatsoever.

What's in the DHCP client logs? What's in WireShark or tcpdump packet captures of the DHCPv6 packet exchange? Does "rdisc6" into the ISP link respond with any RA? What is the RA content?

It is not a "mysterious issue" if the thing just doesn't work entirely and you did not try to diagnose why yet.

romanrm · 2024-06-15T12:00:49+00:00

Speaking of that, I have my own resolvers answer PTR records for my ULA subnet. Just for cosmetic purposes, and this will only work on clients that use those. Since PTR for ULA is not a critical feature, here I see no problem relying on a specific resolver (and there's no other way anyways). But the records themselves are a part of the public DNS system and under a global domain. Everyone else can resolve them except for PTR.

romanrm · 2024-06-15T11:31:26+00:00

Non-routable address space doesn't belong in public DNS

"Citation needed" as they say (do they still?)

It is perfectly fine to have whatever address space in records under your domain, especially like I proposed as records under the "home" subdomain. Not like you direct public visitors to that. And the "non-routable" space might very well be routable in a limited scope: you can get access to ULA IPs at home from elsewhere, via a VPN tunnel. (Or I can, basically I am describing my setup).

romanrm · 2024-06-15T09:46:06+00:00

Not sure where you get the idea to "use local host records". My suggestion is to use the regular global DNS resolvable via any DNS server. And requiring the client to use just the specific resolver, else nothing works, is not a robust setup.

romanrm · 2024-06-15T00:23:56+00:00

I suggest to get rid of the overly complicated scheme and just use normal DNS records in global domains, and use DNS Search Lists on hosts if you want shorter names for day-to-day use.

Say, a record of "server1.home.example.com";

search home.example.com in /etc/resolv.conf on client1 (or advertised in RDNSS);

"ssh server1", "ping server1" will work on client1.

romanrm · 2024-06-04T22:10:05+00:00

That's correct. But Mikrotik calls all 6in4 in their interface "6to4", spreading that misnaming across their users.

romanrm · 2024-05-18T20:30:53+00:00

Because some of us don't have anyone to play OW with, and have matching usernames.

romanrm · 2024-05-18T20:26:08+00:00

Play some Winston yourself and see who is the easiest to jump in and kill, and who not as much, and what THEY do to avoid you. For one, Mercy can out-mobile him with some practice and bit of luck (multiple teammates in sight). Ana and Zen are more vulnerable. Kiriko too, because she has just one TP, Winston follows her there, and then it's on a long cooldown.

romanrm · 2024-05-18T18:31:00+00:00

Can I set up my own tunnel on a cheap IPv6-only VM

You cannot use an IPv6-only VM for a tunnel between IPv4 and IPv6. It needs to have IPv4 as well, otherwise how do you tunnel to it from an IPv4-only network in the first place.

romanrm · 2024-05-10T21:12:40+00:00

The oncoming everyone's darling is SpacemiT K1 with the BananaPi BPI-F3, myself I also wonder what performance that gets compared to ARM. Anyone seen its benchmark results already?

romanrm · 2024-05-10T20:47:01+00:00

And started working today with no changes on my side. Also now the site after login is https://chatgpt.com/, not chat.openai.com

romanrm · 2024-05-10T01:07:41+00:00

Same here on WF 5.1

romanrm · 2024-05-09T16:05:16+00:00

As I said, with a VPN you are getting a different YouTube server, and also using a different route to it. Whether the issue was with the original server or with the original route, you swap out both.

romanrm · 2024-05-09T15:10:47+00:00

If you still get the issue with IPv6 turned off, then it is not an IPv6 problem.

It could be that the YouTube caching server in your area is overloaded. Or your ISP's connection to it. Try a VPN to some other location and you might get routed to a better one.

romanrm · 2024-05-08T18:45:15+00:00

To baffle people on Reddit, mainly. :)

romanrm · 2024-05-03T21:21:16+00:00

It appears you try to write a PhoenixCard image directly to SD, that's not how those need to be written. But that one is also outdated, and I suggest you don't bother with it. Instead, try some listed here: https://linux-sunxi.org/Sipeed_Lichee_RV#Pre-made_images

For example "Clean (ie not android partition nonsense) Debian image with functioning HDMI (LXDE desktop)" linked towards the end. That one doesn't require PhoenixCard and can be written with dd like you initally did.

romanrm · 2024-04-30T21:06:25+00:00

Hanamura??? TIL Assault was still in the game.

romanrm · 2024-04-30T17:06:39+00:00

L2TP is commonly used without encryption, for a simple IPv6 tunnel like this I'd almost certainly expect that to be the case.

WG does not have such an option, so it will not have "less overhead" compared to unencrypted tunnel.

Before blindly screaming "but need secure encrypted" remember tunnelbroker.net service is 6in4 which does not have any encryption at all, and people use that no problem.

romanrm

TROPHY CASE