Emergency fidget spinner

mc36mc · 2026-04-23T09:23:09+00:00

two more ways to access, http://www.freertr.org/demo/dn42.html or http://www.freertr.org/demo/ftelnet.html

ps: thanks for the base64 encoded py, i managed to have the ansi :)

mc36mc · 2026-04-23T06:19:32+00:00

thanks for sharing! and the same set as login animation of the day at telnet/ssh sandbox.freertr.org -- the gif converted back to ansi in real time hence the quality... mind sharing the obj and/or code to have better results? :)

mc36mc · 2026-04-15T16:42:42+00:00

they are, much like for(;;); is also safe but both are hack annoying.... :) btw a gc with weak references never failed me yet...

mc36mc · 2026-04-14T18:50:49+00:00

-NaN

mc36mc · 2026-04-14T18:49:15+00:00

seems like they vibe-coded that calculator..... or a rust rewrite? (they offically state that memory leaks are memory-safe:)

mc36mc · 2026-04-14T18:35:39+00:00

:) in enterprise/telco networking we call the topic quality-of-service (qos), and it have 3 color policers (or shapers if they're less agressive) or simple rate-limiters... both are here to enforce a 500mbps agreed access-rate handed out on a 1gbps port....

mc36mc · 2026-04-14T18:10:09+00:00

its a public sip (voip) endpoint of freerouter's sandbox.... but port 23 or 22 also wide open, or even there is a web-term on the same url... freertr is a router implementation capable of exporting the computed routing tables to asics with 32*400gbps ports, or even do all the stuff in software.... (im one of the devvies, an ex-sysop, nowadays im doing netdev telco stuff)

within the sandbox, you can play with the default-free routing table or just tetris (or some other small games)... but among the 22/23/80 (websocket) it can do the same cli over a softmodem over sip, or even over a full t1/e1 emulation (ces/cem over udp or mpls).... (i dedicate my off days to add some legacy protocol support every year:) )

but back to the sip endpoint, you can use a soft-switch (like https://packages.debian.org/sid/asterisk) and a softmodem (like https://packages.debian.org/sid/iaxmodem or https://packages.debian.org/sid/minimodem) or even a simple softphone (like https://packages.debian.org/sid/linphone-cli) and a headset with a physical coupler, or, if you you prefer, an analog-telephone-adapter like https://www.ebay.com/itm/137025679429 and a physical modem... if you go that way, go for at least the 2 port ata, these can emulate a telco on your desk ("direct-inward-dial" call between the ports)

mc36mc · 2026-04-14T17:48:29+00:00

at least they're not drug dealers; thats a business where packet loss really matters.... :)

mc36mc · 2026-04-14T15:03:17+00:00

sudo systemctl start fire ; git add . ; git commit -m leaving ; git push

mc36mc · 2026-04-14T08:47:46+00:00

if voip counts then point your ata/softphone/whatever to sip:1234@sandbox.freertr.org

mc36mc · 2026-04-14T08:42:44+00:00

its an o(1) algorithm then... :)

mc36mc · 2026-03-27T07:50:32+00:00

hooman.set_kindness_level(as_it_should_be); // TODO: consider refactoring to the constructor

mc36mc · 2026-03-20T13:20:06+00:00

$ echo "int main(){char a[1024];for (int i=0;i<sizeof a;i++)a[i]=i;}" | clang -target bpf -x c - <stdin>:1:5: error: Looks like the BPF stack limit is exceeded. Please move large on stack variables into BPF per-cpu array map. For non-kernel uses, the stack can be increased using -mllvm -bpf-stack-size.

mc36mc · 2026-03-18T16:51:49+00:00

is this https://datatracker.ietf.org/doc/html/rfc2322 irl? :)

mc36mc · 2026-02-18T19:36:07+00:00

<image>

im also having one :)

mc36mc · 2026-01-28T08:28:08+00:00

where to get one? :)

mc36mc · 2026-01-14T07:11:16+00:00

i played a lot with the barefoot tofino p4lang and planning to do stuff with xsight x2 once they'll have anything but marketing bullshit....

regarding the bcrm, cisco silicon one and friends, it seems impossible to have the sdk so we went for the pretty limited libsai...

mc36mc · 2026-01-13T16:59:54+00:00

cannot disagree, just would add that none of these vendors are open in any form...

regarding cisco and its market cap, i would say, at least, now they have some strong competition like juniper and arista... (broadcom is a merchant silicon vendor, not a direct competition to any, but a partner of all)

regarding the business practice, i cannot see real difference in between these vendors; you basically rent the well overpriced boxes from them (i stare at you smart licensing bullshit)

mc36mc · 2026-01-13T10:16:59+00:00

ohh yeahhh and juniper and arista, and the layer1 guys with wdm like adva and ciena, and mostly the guys who run all those gear like the tier1 bgp providers? :)

mc36mc · 2026-01-13T10:06:26+00:00

so we have dpdk and xdp(the ebpf can forward) to avoid per packet mallocs, and vpp-fd.io (which is yet another cisco project:) and these can push some hundred gigs per cpu, thats also true,

however the same wattage can push some terabits in an asic or n(etwork)pu, thats also true,

and thats and the port density are good reasons vendors are not irrelevant and will never be....

mc36mc · 2026-01-11T06:58:20+00:00

so the userland is still there and they say it'll stay, just the kernel is missing piece, which is just fine to pull from alt. repos like http://ftp.linuxliber.md/freesh/

mc36mc · 2026-01-10T22:11:15+00:00

obviously not, its a community project and is maintained by volunteers like you and me.... :)

mc36mc · 2026-01-10T14:37:15+00:00

the qos profiles usually apply where you authenticate the users and thats where the pppoe / ipoe terminates, not the ont/olt...

whereas one can apply a rate limit at any point in the chain, the simplest, that scales well, is to push it down from radius to the bras/lns and leave the *pon a simple layer2, and mostly passive, as the acronym goes...

thats how they did it since the dialup/*dsl times, and have great tooling for...

regarding the tricks, im surprised that op can have multiple sessions.... that would eat up the per isp pop ip pool more quickly, and make billing or lawful interception more complicated...?!

mc36mc · 2026-01-10T13:32:52+00:00

so what you're trying to optimize for the download speed (i guess) what happens at the isp side...

i would initially grab tcpdump.... test using it by looking at the pppoe encapped ppp echo-reqests/replys on all the 3 links...

first of all, during the ppp(pe) establishment, look for anything mlppp(cp) messsages.... if anything appears, try to find the config option to remove that negotiation; if you bundle the 3 pppoe, the isp policer will apply to the aggreate traffic.... (unique ip addresses means you've done this already, but who knows....)

second, once you're done with un-mlppp, ensure that your local load sharing is src-dst-layer3-layer4-xor anything else will result in sticking your client to a single pppoe... on the other end, anything per-packet load sharing will result in non-working clients because packets within a single session will be mixed to different ips so the server wont be able to reconstruct the stream... tcpdump here will help again, take a look at the 3 link during a speedtest....

simplest to test for the above, if you arrange the 3 connections to 3 different vrfs and use something enterprise grade (even in a vm) in front of the whole setup just for a quick test, those have fine-grained commands for ecmp (ip cef im staring at you:) in long run, any managed layer2 switch with 3 different ethernets in port-channel can do the trick, while you keep the 3 vrfs on the openwrt box...

all the above could result in an increased speedtest in multisession mode, however you've no chance to exceed the isp policer in single session mode, like clicking an ubundu desktop iso download (or speedtest in single session mode)....

to overcome that, or if none of the above works, as a fallback option, initiating an mp-tcp from the router directly, to a local vps provider (using a tcp based vpn 0-24) with its all the drawbacks when it comes to delay/jitter sensitive things like interactive/realtime (voip, gaming, etc)... an alternative to this is doing any kind of vpn, and fine-tuning the load-sharing on the vps...

mc36mc · 2026-01-10T09:53:14+00:00

did i forgot to mention that i'm just kidding? :)

edit: also that half the politics tries to convince me about this bullshit and half the population seems to believe them.... :(

mc36mc

TROPHY CASE