Hi,
I teach a CS course, and I was wondering if there is a practical way in which to setup a server that would accept student's tar files, run some tests, and show them the results.

I could go "full unix mode" and roll up some accounts let them ssh into a server, scp their their files.... but I was wondering if there is a prepacked solution for this that is nicer to the eye. And I thought maybe you know some.

Edit: Yay, with MTU < 1280 the client seems to just disable IPv6, including the ::/0 in AllowedIPs.
Disabling IPv6 also fixed the low upload speed (probably getting a better route over Wireguard).
That also explains why the differences didn't present themselves with iperf3, as that absolutely had to use Wireguard.
What remains now is why TCP download takes such a huge hit, while it doesn't on laptop.

Not asking for support (anymore). I tried the official Wireguard client, and the issue doesn't present itself there.
So likely a bug, but a bit interesting.
Welp, few hours of playing around and searching wasted.
~~At least you might not waste time with it too, like I did, and I already wrote this...~~

App used: github.com/wgtunnel/wgtunnel

So, this seems like a bit of a magic.
"Server" has MTU of 1420, its connection is 1500. The now-limited ifconfig in Termux shows 1500 for data interface.
I've seen a few people mention the 80 bytes is overhead of WG.

I've had issues with far slower download speed (half expected), so I switched MTU to 1280 (minimum for IPv6) which worked for me in the past for Mullvad. No luck.
I've got an idea, that perhaps if my data interface is 1280, then I should try 1200. That worked... for download. Now upload got significantly slower. I also tried matching MTU on "server" but that made no difference. I also tried some fairly low values like 500, which worked for download, but further killed upload. So far that testing was done using speedtest.net and fast.com.

Through trial and error I've found:
if MTU >= 1280 then upload speed is normal, but download slower
if MTU <= 1279 then download speed is normal, but upload slower

Tailscale is using 1280, and is fine in both directions. Moving to iperf3 (seemingly unaffected by MTU changes):

Plain wireguard

Download (TCP)
```<>
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-20.12 sec 33.2 MBytes 13.9 Mbits/sec 117 sender
[ 5] 0.00-20.00 sec 32.2 MBytes 13.5 Mbits/sec receiver

Upload (TCP)
```<>
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-20.00  sec   101 MBytes  42.4 Mbits/sec  401            sender
[  5]   0.00-20.17  sec   100 MBytes  41.6 Mbits/sec                  receiver

Upload (UDP)
```<>
[ ID] Interval           Transfer     Bitrate         Jitter    Lost/Total Datagrams
[  5]   0.00-20.00  sec   477 MBytes   200 Mbits/sec  0.000 ms  0/407504 (0%)  sender
[  5]   0.00-20.54  sec   119 MBytes  48.5 Mbits/sec  0.201 ms  305999/407495 (75%)  receiver

Tailscale

Download (TCP)
```<>
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-20.12 sec 236 MBytes 98.6 Mbits/sec 2 sender
[ 5] 0.00-20.00 sec 233 MBytes 97.7 Mbits/sec receiver

Upload (TCP)
```<>
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-20.00  sec   120 MBytes  50.2 Mbits/sec  625            sender
[  5]   0.00-20.15  sec   119 MBytes  49.6 Mbits/sec                  receiver

Upload (UDP)
```<>
[ ID] Interval           Transfer     Bitrate         Jitter    Lost/Total Datagrams
[  5]   0.00-20.00  sec   477 MBytes   200 Mbits/sec  0.000 ms  0/407167 (0%)  sender
[  5]   0.00-20.29  sec   138 MBytes  57.2 Mbits/sec  0.196 ms  289036/407167 (71%)  receiver

Note: 200 Mbits/sec in UDP tests refers to my pre-set limit, as higher speeds wouldn't be achieved anyway. Otherwise it keeps spraying out at full speed if no limit is set.

And now for the biggest oddity: My laptop speeds are fine even with default 1420 MTU, even though it runs over hostpot.

What magic is going on in here?

Also, the VPS doesn't have IPv6, so it's probably not that being routed slower in one direction (as IPv6 requires 1280).

The International Federation of the Red Cross said up to 1.5 million people in Jamaica—roughly half the island’s population—are expected to be directly affected by Hurricane Melissa, one of the most powerful hurricanes ever recorded in the Atlantic Basin and the strongest storm on Earth this year.

“We are okay at the moment but bracing ourselves for the worst,” Jamaican climate activist Tracey Edwards said Tuesday. “I’ve grown weary of these threats, and I do not want to face the next hurricane.”

The International Organization for Migration warned that “the risk of flooding, landslides, and widespread damage is extremely high,” meaning that “many people are likely to be displaced from their homes and in urgent need of shelter and relief.”

'The Stuff of Nightmares': Hurricane Melissa Makes Catastrophic Landfall in Jamaica

"This is an extremely dangerous and life-threatening situation," said the National Hurricane Center.

<sup>jake-johnson (Common Dreams)</sup>

• Hurricane Melissa is set to make landfall in Jamaica any time.
• The Category 5 storm is the strongest to lash the island since record-keeping began 174 years ago.
• It is expected to slice diagonally across the island, from south to north, before hitting Cuba.
• "There is no infrastructure in the region that can withstand a Category 5," said Jamaican Prime Minister Andrew Holness.
• Jamaican officials warned residents that conditions will soon worsen, despite heavy rains already battering the island before the storm’s landfall.
• The Category 5 storm is headed for the Caribbean, packing winds of up to 295 km/h (183 mph)

https://apnews.com/article/spain-drone-airport-closure-tourism-958acf71f4f73763ab5563d3f057e987

so my partner is a harry potter fan, from back when What's Her Face wasn't obviously a trashy person. i would just like to preface this by stating that i don't condone the ideas that What's Her Face espouses, we don't buy the merch, we pirated the movies and any of her books in my library had been bought from a used book store which resells donated books.

So in the books, there's a reference to a "butter beer" the kids drink. I'm thinking that this is non-alcoholic as in a ginger beer, or at least not super strong. I wanted to try to make a batch for my partner as a special surprise.

I'm planning on making a batch of this next in the style of an american cream ale with vienna malt as the base, 10% oat and 10% corn flakes, to give it a heavy mouth feel, and adding some vanilla extract and nutmeg for the flavor.

Has anyone here made this before, and if so, how did it go? Any pitfalls to watch out for?

https://kagi.com/

https://apnews.com/article/myanmar-scam-centers-cybercrime-thailand-border-daa90f481ea4207e7d7a891dda1161c8

Malaysia handed over the chairmanship of Southeast Asia's regional bloc to the Philippines on Tuesday (Oct 28), with territorial disputes in the South China Sea set to dominate its agenda when Manila takes charge in 2026.

Prime Minister Anwar Ibrahim, who will remain chair of the Association of Southeast Asian Nations (ASEAN) until the end of the year, symbolically passed the gavel to Filipino President Ferdinand Marcos at the close of a summit in Kuala Lumpur.

"On the first day of 2026, ASEAN will begin a new chapter," Anwar said.

Philippines to take ASEAN chair with focus on South China Sea

ASEAN and China have been negotiating a code of conduct to regulate behaviour in the South China Sea, aiming to secure an agreement by 2026.

<sup>CNA (Channel NewsAsia)</sup>

Sorry if I'm mistaken on this, but I'm still new to self-hosting.

Currently I use SyncThing and I love it. My files are accessible to me wherever I am in the world, and it costs me nothing.

I'd like to move more of my life to self-hosted servers. I'm looking at leaving Spotify for Funkwhale. But if I'm reading the materials correctly, I'll need to set up a domain and pay some upfront costs to make my library accessible outside my home.

Why is that? Is there a way to make my costs 0, the way they are with SyncThing?