← | Results 251 ... 351 found in all logged channels for 'tcp f:asc'
(trilema) asciilifeform: tcp over old slave banjo.
(trilema) asciilifeform: trinque: tcpdump plox.
(trilema) asciilifeform: i did not include the tcp module for ts either
(trilema) asciilifeform: tcpdump -nnXSs 0 port 8333
(trilema) asciilifeform: i spent a good spell watching tcpdump with eyeballs
(trilema) asciilifeform: PeterL: it is supposed to be a generic cipherator for tcp tunnel
(trilema) asciilifeform: i've experimented with tcp replay for testing
(trilema) ascii_butugychag: but even then, a debugger that listens on tcp is a dangerous thing to have around
(trilema) ascii_butugychag: the latter enciphers a plain tcp tunnel.
(trilema) ascii_butugychag: phf: i have a patch for adding actual tcp to ts
(trilema) ascii_butugychag: here's a riddle. why no straight tcp ddos against any of'em ?
(trilema) asciilifeform: it can run in one of two modes, '-connect' where it services a fixed list of peers, AND NOBODY ELSE (no incoming tcp)
(trilema) asciilifeform: incidentally a gossipd which conducts tcp pipes would at least threaten to begin to formalize the hierarchy.
(trilema) ascii_field: that tcp is retarded ?
(trilema) ascii_field: whoever accepts tcp connections is ddosable.
(trilema) ascii_field: http://log.bitcoin-assets.com/?date=28-11-2015#1333236 << if you use tcp or any other protocol where an enemy gets to hog so much as a byte of ram JUST FOR SHOWING UP, you're ddosable
(trilema) asciilifeform: (or tcpdump+perl)
(trilema) ascii_field: i am deliberately not even mentioning gpu, because it is possible to have a useful computer with no vga board (e.g., you can speak x11 over tcp)
(trilema) asciilifeform: anyway i'll be the last to cry for tcp.
(trilema) asciilifeform: bitcoin as presently existing rides on top of tcp.
(trilema) asciilifeform: the smallest known tcp stack is that swedish one
(trilema) asciilifeform: adding tcp would prolly double or triple the mass, though.
(trilema) asciilifeform: http://log.bitcoin-assets.com/?date=04-11-2015#1315773 << have you (or anyone else) considered writing a simple tcp proxy for this ?
(trilema) ascii_field: FUCK this-replaces-x11-but-won't-pipe-over-tcp
(trilema) ascii_field: http://log.bitcoin-assets.com/?date=08-09-2015#1266672 << mongolia has what, tcp-over-dead-goat modem ?
(trilema) ascii_field: this drew my attention to the asinine tcp socket handling in therealbitcoin
(trilema) ascii_field: might need to tcpdump, 'wireshark' it.
(trilema) asciilifeform: mircea_popescu: gotta have at least a minimal scheduler for tcp/ip
(trilema) asciilifeform: iirc tcp as originally proposed had a second channel for virtual 'out of band' ! but was never used.
(trilema) asciilifeform: ben_vulpes: if you want raw packet payloads, tcpdump will disgorge'em.
(trilema) asciilifeform: i have a box where some sniveling fucker has been lifting payloads out of tcp, for ~9+ hours now.
(trilema) ascii_field: now we also need a tcp crud pipe for every access to the blockchain ????!!
(trilema) asciilifeform: after which we get to write gossipd with tcp syn instead of udp
(trilema) asciilifeform: mircea_popescu: if it's tcp, you are serving jam to folks for showing up
(trilema) asciilifeform: to filter tcp syn vs empty udp
(trilema) asciilifeform: mircea_popescu: so then you get flooded with TCP SYNs. same difference.
(trilema) asciilifeform: it is relevant to having created this bizarre situation where mircea_popescu thinks that tcp somehow solves ANY of the problems discussed earlier
(trilema) asciilifeform: as tcp forces.
(trilema) asciilifeform: it is tcp which is the ultimate braindamage.
(trilema) asciilifeform: routing tcp no-questions-asked while filtering packets that could be signature-authed without storing state is braindamaged.
(trilema) asciilifeform: mircea_popescu prefers to be ddosed with tcp ?
(trilema) asciilifeform: as for that one, you could, conceivably, look at sequence numbers and learn when a severely broken tcp/ip stack is in use
(trilema) asciilifeform: tcpdump -s 0 port 8333 -w turd.pcap
(trilema) ascii_field: 'Trend Micro Threat Intelligence Manager installs a secure web interface (httpd.exe, tcp port 443/https) which listens for incoming requests. Several vulnerabilities have been found in the product that would allow a remote attacker to cause the product to execute arbitrary code.'
(trilema) asciilifeform: or does it open ordinary sockets and expect a tcp stack
(trilema) ascii_field: there are ~working~ tcp stacks for 'bare bios'
(trilema) ascii_field: and not, as naive might suppose, the tcp/ip !
(trilema) asciilifeform: because literate folks, heard of 'tcpdump', 'wireshark', etc
(trilema) asciilifeform: tcp without threads?
(trilema) asciilifeform sends warm hello to the nice folks at ft meade sending us tcp FIN's
(trilema) ascii_field: until you want to do something like tcp
(trilema) asciilifeform: once a tcp socket is opened, there is two-way communication.
(trilema) asciilifeform: (how tcp? over slip/rs232, of course)
(trilema) asciilifeform: tor is this thing where tcp is bounced via three machines, selected by shitgnomiferous mega-turd of a client, over ssl (ditto)
(trilema) ascii_field: 'When we tried wget, it detected errors, retried, and finally succeeded. It said the error was a bad length field in a TLS packet. That didn't make sense at first because we thought TLS packets were error corrected by TCP.' << incidentally, i am not certain that i agree with the author's conclusion ('reverse heartbleed'.) it may very well be an attempt to exploit other braindamage in http stack
(trilema) asciilifeform: ~50MHz 32-bit (oddball architecture) cpu, tcp/ip implemented in hardware, can address via spi (as in sd card) external eeprom.
(trilema) asciilifeform: i humbly request a copy of r. stevens's 'tcp/ip' bound in his skin.
(trilema) asciilifeform: decimation: almost certainly the cheapest crystal (if any! might well have rc oscillator!) - given as the thing only works with iPnohe, which has always-on tcp
(trilema) asciilifeform: it should ask for only a tcp stack and a place to park bytes in some nonvolatile way
(trilema) asciilifeform: PeterL: most 'alternatives for x11' dispense with the everything-can-be-piped-over-tcp
(trilema) asciilifeform: may as well also be said about tcp over lan, where no packet ought to ever drop unless the place is on fire...
(trilema) asciilifeform: and tcp/ip stack...
(trilema) asciilifeform: the_scourge: the 'open' in 'opengenera' is an archaic 1980s usg-ism. it simply refers to the fact that a product features industry-standard protocols like tcp/ip and does not require you to buy the entire universe you live in from one particular vendor.
(trilema) asciilifeform: the telco drops anything at all coming your way that isn't part of a tcp connection you established earlier
(trilema) asciilifeform: or are we to believe that a protocol carried 100% in cleartext, on unique tcp port - is not being molested ?
(trilema) asciilifeform: (it uses custom tcp stack)
(trilema) asciilifeform: interestingly, there is, afaik, no support for any of the spiffy bells & whistles (hardware tcp/ip, queueing, packet inspection, etc.) in any civilized os.
(trilema) asciilifeform: because tcp establishes a connection
(trilema) asciilifeform: mircea_popescu: nope. does not work on tcp.
(trilema) asciilifeform: console can be connected to tcp or to radio set on valves
(trilema) asciilifeform: you will -never- get single-packet friend-or-foe with tcp or tcp-like apparatus.
(trilema) asciilifeform: artifexd: for sufficiently simple quanta, it is very easy to 'verify received' without duplicating all the cruft of tcp.
(trilema) asciilifeform: i wouldn't bother arguing the udp/tcp point were it not for the fact that this is not a decision that can be easily re-visited.
(trilema) asciilifeform: the connection-tracking apparatus of tcp is really half the force behind the sting of 'ddos'
(trilema) asciilifeform: decimation: he means, i think, generic tcp stream (vs. store-and-forward, which is more or less the only way to even begin resisting elementary traffic analysis)
(trilema) asciilifeform: someone probably wonders 'wtf, why fountain code'. answer: getting rid of tcp.
(trilema) asciilifeform: kakobrekla: if you can be bothered, try the experiment again, with tcpdump log. and post or send privately (i only need packet payloads and originator ip)
(trilema) asciilifeform: ;;google tcp sequence number vulnerability
(trilema) asciilifeform: who recalls the tcp sequence number bugs ?
(trilema) asciilifeform: nothing stops anyone reading this from firing up 'tcpdump', logging uncloaked into #b-a a few hundred times, grabbing a dump similar to my own but more complete, and pointing the idiot boxes at, e.g., 'reddit' 24/7/365.
(trilema) asciilifeform: decimation: in point of fact, you can get by without either tcp or the proverbial 'bad reimplementation' of it
(trilema) asciilifeform: people act as if tcp/ip were a moon rocket
(trilema) asciilifeform: BingoBoingo: given that tcp/ip lets you fuck with ordering, that trivially parallelizes. at least, as fast as you can physically clock the bits off the wire to individual comparison registers, and then back on
(trilema) asciilifeform: dignork: tcpdump...
(trilema) asciilifeform: but instead an entity which simulates the behaviour of one where possible (in much the same way a tcp/ip telephone attempts to behave like a traditional electric telephone.)
(trilema) asciilifeform: say he grows a brain, and starts 'tcpdump'ing. finds that the proxy just connects to another just like it. rsa on both ends.
(trilema) asciilifeform: 'rewrite the tcp/ip stack so that all traffic is encrypted' << doesn't solve the problem described in the 'enforcement' article.
(trilema) asciilifeform: jborkl: 'tcpdump', 'wireshark', etc
(trilema) asciilifeform: large, and often changing, standards: TCP/IP, HTTP, HTML,
(trilema) asciilifeform: BingoBoingo: real time tcp/ip, over 1000s of km, for millions of people - is a luxury.
(trilema) asciilifeform: arsenet is coming, because the average luser doesn't really insist on being able to open an arbitrary tcp connection from wherever to wherever
(trilema) asciilifeform: perhaps we can win a tcpipy. or something.
(trilema) asciilifeform: BingoBoingo: If you've managed to write a working TCP/IP stack for your TI, go for it.
(trilema) asciilifeform: I have an FPGA board right here on my desk, with a completely verifiable TCP/IP stack
← |
Download hourly DB snapshot | Get Source Code