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Cake day: December 27th, 2023

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  • i once had to look at a firefall appliance cluster, (discovered, it could not do any failover in its current state but somehow the decider was ok with that) but when looking at its logs, i discovered an rsh and rcp access from an ip address that belonged to a military organisation from a different continent. i had to make it a security incident. later the vendor said that this was only the cluster internal routing (over the dedicated crosslink), used for synchronisation (the thing that did not work) and was only used by a separate routing table only for clustersync and that could never be used for real traffic. but why not simply use an ip that you “own” by yourself and PTR it with a hint about what this ip is used for? instead of customers scratching their head why military still uses rcp and rsh. i guess because no company reads firewall logs anyway XD

    someone elses ip? yes! becuase they’ll never find out !!1!

    i really appreciate that ipv6 has things like a dedicated documentation address range and that fc00:/7 is nicely short.


  • ipv6 in companies… ipv6 is not hard, but for internal networking no company (really) “needs” more than rfc1918 address space. thus any decision in that direction is always “less” needed than any bonus for (da)magement personnel is crucial for the whole companies survival…

    for companies services to be reachable from outside/ipv6 mostly “only” the loadbalancers/revproxies etc need to be ipv6 ready but … this i.e. also produces logs that possibly break decades old regexes that no one understands any more (as the good engineers left due to too many boni payed to damagement personnel) while other access/deny rules that could break or worse let through where they should block (remember that 192.168. could the local part of ipv6 IF sone genious used a matching mech that treats the dot “.” as a wildcard as overpayed damagement personnel made them rush too fast), could be hidden “somewhere”. altogether technical debt is a huge blocker for everything, especially company growth, and if no customer “demands” ipv6, then it stays on the damagement personnels list as “fulfilling the whishes of engineers to keep them happy” instead of on the always deleted “cleaning up technical debt caused by damagement personnel” list.

    setting up firewalls for ipv6 is quite easy and if you go the finegrained “whitelisted or drop/block” approach from the beginning it might take a bit for ipv6 specials to be known to you, but the much bigger thing is IMHO the then current state of firewall rules. and who knows every existing rule? what rules should be removed already and must not be ported to ipv6? usually firewalls and their rules are a big mess due to … again too many boni payed to damagement personnel, hindering the company from the needed steps forward…

    ipv6 adoption is slow for reasons that are driving huge cars that in turn speed up other problems ;-|


  • maybe start with an adjustable setup:

    • rent a cheap vm, i got one for 1€/month (for the first year,cancel monthly) from ovh currently
    • setup 3 openvpn instances to redirect all routes through the tunnel, one with ipv4 only, one with ipv6 only and one with both
    • setup the client on your mobile phone and your laptop both with all three vpns to choose from
    • have the option to choose now and try out ipv6, standalone or dualstack depending on what vpn you switch on
    • use this setup to blame services that don’t support ipv6 yet or maybe are broken with dualstack 🤣
    • rise from under-the-stone (disabling ipv6 only) to in-sunlight (to a well-above-industry-standart-level !!! “quick” new network technologies adopting “genious”) 🤣
    • improve your openvpn setup from above to be reachable “by” ipv6 too if you haven’t done it from the beginning, done: reach the pro-level of the-late-adopter-noob-group

    (if you want, ask for config snippets)

    btw i prefer to wait for ipv8😁 before “demanding” ipv6 from services i use 🤣


  • smb@lemmy.mltoPrivacy@lemmy.mlDoes MATRIX recipients know my IP?
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    8 days ago

    a public room is public. anyone could and should be able to enter it at any moment start recording and uploading everything to $terrorist@/or$three-letter-agency or such. The idea that someone else could also get the same already public data later is not threatening, as that data is already considered public as in “everyone in the world could have it a second after the data came into existance”. and also as removing from the public is not considered possible, uploading that already intentionally published data again does not pose a greater threat than its first publication, but uses just a bit of bandwidth, not more. if you are very sensitive about visibility of who you talk with, maybe don’t enter “public” rooms in the first place.

    if you join a private room, you already want to share with the other participants that you are f***ing talking to them, including when and who you exactly encrypted the data for, when, and to which servers they have to be forwarded. i expect the server of all participants to forward messages to the recipients. for this the server needs to know this type of information. Of course awareness, which data is used to make i.e. routing decisions is a good thing, but a “nightmare” would be teams zoom icq, whatsapp and similar. i am sure that messengers exist that could be less traceable for participants, but full anonymity to who you are communicating with so that even the servers know nothing about what happens in a room is imho not even a goal of matrix for the future.

    Not a “nightmare”, but what a nightmare it must be to find out that a system that looked so promising did not fulfill “every” dreamexpectation one had with options that are even the opposite of ones dreamexpectation like “public rooms”. that are meant to be public! how horrible!!!(lol)

    by the way -as it seems possibly noteworthy here - if you exchange emails with someones @gmail address, then google has all of your mail histories metadata, as well as the server of your provider has. just to mention, do not send emails to @gmail.com if you dislike google knowing about it. and if you share a document with edit history, then the edit history is likely also shared ;-) As “rooms” in matrix are meant to have a state that changes from the beginning sometimes possibly with every message and one can answer to a message which would reveal the existance of that message later when answered on, including at least a hint of what it was about, such information is imho meant to to be rather complete than hidden. maybe 1:1 chat solves this issue for you, as every chat with a new other person would start empty.

    i might be wrong, but matrix already is one of the most robust systems when it comes to “compromised servers”. so very far away from a nightmare. that is unless you are either a true criminal bastard or a true world saving hero, then every leaked byte might be the deadly one, that is true.

    So in case you are a true world saving hero: Maybe use a self build raspberry pi mesh proxy chain mounted on rooftops delivered by drones at night to proxy the signal of an in-memory-only-tasks-raspi to a free wifi, where the raspi that has its orders is using battery (like the rooftop proxy chain) but is hidden in a public transport to reach the proxy mesh by the transportations timetable. just to give a paranoic one some ideas and some work to do ;-) If you’ve build everything, then upload the code to github and designs to thingiverse so that “anyone” could have placed the proxy mesh to a free wifi on the rooftops, so you be more secure from beeing suspected ;-) lol btw a mesh system to accomplish this already exists, i think they named it b.a.t.m.a.n. (no joke) protocol, so the main struggle should be handling of solar power vs wifi signal strength, distances, humidity and windproof mount design beeing able to be deployed by manually controlled quadrocopters. good luck!


    • The good’ol cursing seemed to work without radio or someone actually listening
    • it seems boeing was already cursed with parasites in high positions. not sure if additional cursing could actually increase a long painful death curse by anything other than its duration.
    • The “pick them up” they’ld rather want, does not work through radio yet, rescue missions for biological personnel sadly still need to be made of/by solids.
    • unfortunately radio is a bit flawed during the plasma phase of reentry, while i think the plasma phase ‘is’ the reentry, before is only getting closer, after its basically flying or gliding/falling down, maybe parachuting. the plasma is a bit of a barrier for radio signals they said long ago. however i was quite surprised to see a new "documentation’ lately about the columbia shuttle during reentry where i was sure the original documentation said that they were in the no-radio phase due to plasma while the new ‘documentation’ said they could communicate through radio even seconds before the destruction of the shuttle, the new documentation even showed they had sensor metrics about first sensors to measure high temp while afaik those sensors were initially later installed only “because” of the aftermath for this very nasa failure … so could be that also the informations we got from tha liers about the plasma phase is also a bit “flawed”.
    • last, i’ld guess that they don’t have equipment for amateur radio frequencies on board, all involved are picky about overall rather “deadly” leaking of informations important for the public.

    so to answer your question: my guess is no one will.


  • the “news” i “know” about india is little, some historical “facts” written mostly by uncivilized brutish invaders compacted to youtube videos by part or fulltime streamers. Some other “facts” which sound often bad i sometims mostly have from official media known to promote any “nice” propaganda - that is, depicting other countries worse than the own one so that people do not hunt their own gov with garden forks just to stop the crimes. Well i really “know” nothing about India.

    But beeing proud of culture usually is a good thing, but that is only if it is culture and as such does not(!) base on abuse or similar.

    Maybe what you experience could be a crowd effect that protects the people from seeing what they (group, society) do wrong while at the same time it protects the worst wrongdoers from punishment or at least from getting stopped. Such as it could be a self-sustaining downwards spiral taking more and more and everything down with it slowly increaaing pace. At least what you wrote sounded a slight bit chilling like that.

    It could be hormones and how culture tells you to act or not act on them, or a lack of culture about such, maybe a combination of culture to “support your group” while that support does not always protect integrity of the overall concept of what that culture was meant for. A group of people cheering to each other how good they are might not want to stop cheering for “minor reasons” because it just feels good. While doing wrong things they could “help” each other (which is supposedly a good thing but can do lot of harm too) with arguments that this wrongdoing would be ok or even "good’ in this specific moment because of <insert_bullshit_here>. alltogether spiralling downwards doing so more often every day. So all of them can go on wrongdoing while feeling well supported or even falsely feel superior in general.

    however a figure (real/not real?) well known in india once said something like “it is better to calm down and just do your thing than to overreact”. (this is the shortes version i’ve ever tried to compact it to but maybe you get the idea anyway).

    I know for a fact that this is not true,

    i don’t know the underlying things that make it a fact, plz share.


  • smb@lemmy.mltoProgrammer Humor@programming.dev"prompt engineering"
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    3 months ago

    that a moderately clever human can talk them into doing pretty much anything.

    besides that LLMs are good enough to let moderately clever humans believe that they actually got an answer that was more than guessing and probabilities based on millions of trolls messages, advertising lies, fantasy books, scammer webpages, fake news, astroturfing, propaganda of the past centuries including the current made up narratives and a quite long prompt invisible to that human.

    cheerio!


    1. i am sure you won’t pay for it if my laptop disappears this way (if yes, lets make a contract with a lifetime “fee” of 0$ i pay you whilst you pay for everything that got stolen from me in a plane)
    2. ppl with kleptomania do travel too
    3. how could you know? you are not talking about you and your colleagues or such?
    4. such statistics were made by those who benefit from planes looking more safe.
    5. “work and travel” vs “steal and travel”, which is more likely be done by a thiev?
    6. not all theives “need” to steal, some just do so because they can, others maybe because its family tradition.
    7. sometimes it could be more important that nobody could possibly put something into(!) your bag (and remove it later) to let you get it through customs for them, those arguably “would” buy such tickets to do so, as it’s probably part of their income, but i guess thats only a problem when flying in or out of countries with big illegal drug imports.
    8. <something i forgot>



  • smb@lemmy.mltoAsklemmy@lemmy.mlWhy stand in line to board an airplane?
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    3 months ago

    I see only one reason, why i would want to be early at the seat. its bcs if i am not, my backpack might be placed above but multiple seats away by the crew, where it is then uneasy for me to have an eye on it whilst easy for theives to take and open them, especially on long flights there would be plenty of opportunity like when everyone is sleeping.

    but for this case i use locks on the backpack anyway, so that anyone who wants to open it, either opens it where nothing of value is in it thus no lock, or at least has a much harder time than when trying the very same with other bags…

    also on longer flights i usually did not have that problem, but that could also have been just luck


  • hm you have a point that it might not have been removed completely, but the problem with that point that i personally have is that this reached me too late to just believe it was really never removed. For some reasons i would not believe blindly in “evidences” that are in control of the one that is in question and could manipulate it later for such claims and also was experienced to not be trustworthy for what they say…

    saying that, there are ways to check if something was there at a time or not. the one source i know that could help here only seems to store records from 29th jun 2023 18:44:33 onwards which is too late for this.

    https://web.archive.org/web/20240000000000*/https://abc.xyz/investor/google-code-of-conduct/

    you are right, it does not make a difference in if they can be trusted, but it makes a difference in why not and what to expect if you do so despite the red flags or -as a gov- just let things go on. A person who by accident was speeding should maybe be treated differenrly than a person who intentionally(!) does so while risking others lifes. and what would be more proof of intention than a written statement or removed canary? thus such a statement does make a difference in terms of they just cannot handle their stuff, don’t care at all or maybe even have evil intentions.

    examples:

    some kids making a fire in the forest cause they don’t know the risks

    vs.

    some young adults making a fire in the woods cause they just don’t care despite knowing the risks

    vs.

    a company making fire in the woods because its cheaper to do stuff there and they lack the resouces to do it safe and someone else will pay the firefighters anyway.

    vs.

    a company stating to want to do so cause they like it despite they could afford doing it secure but just no one could or would sue them anyway.

    while i don’t want to say google is like no.4 here, to me these examples all make huge differences, no matter if the woods actually cought fire or not.


  • my idea currently is to finish some projects that have priority and afterwards then look for lineage os on raspberry pi, combined with gsm modem and maybe a gps module, all powered by a slim powerbank. might make up a huge bulky phone but i almost want to start building it now. On the other hand if i wait until my other projects are finished, the whole thing might be ready made available for self assembly…


  • smb@lemmy.mltoPrivacy@lemmy.mlWhat are the risks of sharing DNA?
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    3 months ago

    All who could have an idea of what to do with it could seek a way to get that data out of every company or gov that have it for their specific reasons, no matter if data was collected lawful or not, or if access to the data is then lawful or not.

    1. search for source of evidences on crime scenes: if one of your relatives happened to have been (related to crime or just bad luck) at a place where later on some evidence was collected, you might cause trouble for them bcs your data is very similar to theirs and that is obvious to laboratories. depending on the the “later on” current state of technology it could affect relatives more than two or three steps away from you. if you live in a country where law enforcement gives a shit about truth and just seeks for one argument to punish just anyone they can point a finger at, that could become a huge problem for the whole family then just because there was data that could have been abused.
    2. illegal organ traders could - once they have access to your data - think you or your relatives could be a source of nice income if a client of theirs happen to pay enough. however you will probably never know as the illegal organ traders are unlikely to ring the doorbell to ask nicely for a contract. How much do you think would a richie in personal needs pay for “spare parts” if those who deliver them wants him to just never ask where it came from ? does it matter if such organ teaders could know a “compatible match” by data only? maybe not because they might know tomorrow or someone might put up an AI to do the matching (does it matter if that matching by AI is correct then? i guess such traders don’t really care and their customers probably, but wouldn’t that be possibly too late then?)

    For me the latter is actually enough to not willingly give my DNA data to anyone. for no reason. gov might already have it (covid probes had been collected and frozen at least) but actively pushing your data out inzo the world would be insane IMHO.

    Laboratories often use Microsoft Windows, Microsoft Active Directory and Microsoft Exchange, thus i personally see no reason to NOT believe that any data they have received once in time would - sooner or later - end up rotating uncontrolled in the hands of uncountable criminals waiting for any chance to make quick or huge money out of it.



  • there was a study saying that there is not “the” best way of learning, but it is best to combine multiple ways, like with an app, by book, listening to audio only (i listened to radio stations via internet and got some exercise for free), a bit of talking, visiting a country that only speaks that language and so on. trying everything a bit in parallel.

    that is because of our brain learns better when given more different types of “connections” to learn.

    i started with duolingo (website only, not the app and only the free parts) 4 years ago and now i speak quite fluently. but i also partly read a book about grammatics, visited a spanish speaking country (more than once), viewed movies with only subtitle in my language and did lots of phone calls in spanish only.

    my advice is:

    look at free apps, whatever pleases you, take chances, listen to the sound (movies, radio), try to speak, and read easy books or go through exercise books.

    duolingo is good to keep on going while not really motivated as the shortest thing that counts are really only minutes and one can choose to do something that is already easy. this way at least continuation is kept even if pace is down for a while. and it is much easier to go on with pace when not having really stopped.


  • smb@lemmy.mltolinuxmemes@lemmy.worldRussian delete
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    3 months ago
     HISTCONTROL=ignorespace
     unset RANDOM
     RANDOM=4
     clear
    ...
    

    If RANDOM is unset, it loses its special properties, even if it is subsequently reset.

    HISTCONTROL If the list of values includes ignorespace, lines which begin with a space character are not saved in the history list.

    RTFM can save your server AND your bet ;-)

    it is cheating of course if the predefined rules tell us about such requirements and if these are not met any more when unsetting RANDOM ahead of it.


  • smb@lemmy.mltolinuxmemes@lemmy.worldThat's why we need two ssds for dual boot
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    3 months ago

    i have two other possibilities at hand, that do not involve two SSDs:

    1. don’t use intentionally broken software in the first place ;-)
    2. use another device for bootloader, could be a readonly CD or a usb drive, PXE/bootp could also do it.

    And if your company wants you to use rotten software, they also want you to give them the delays, downtimes and annoyances that naturally come with rotten decisions, just keep that in mind.

    Here is one thing to remember and why i call it rotten software and rotten decisions:

    Microsoft offers a free “blame the ransomware people” to any CTO who just wants to receive money without working at all or not having to “think” during work. That same CTO can get a bonus after “solving” the ransomware issue and then: “look how ‘invaluable’ that CTO is to the company” he “worked” for month ( yelling at engineers he previously told to install rotten software???) and resolved the ransomware issue!! This is same to those who work. no law has ever given people that many payed breaks from work as “rotten software” vendors did. and if you made a mistake and did not get trained before, you could blame bot beeing trained.

    Look at it from a “fingerpointer” point of view, one cloud always blame someone else for everything and the only one to blame is too big to fail and also untouchable due to their army of darkness lawyers. thus anything happened? no one could be guilty AND be held responsible. Also if one is slow at work, and so is his OS, obviously easy to blame someone else again.

    so microsoft offers a “solution” to “boss wants you to work more and quicker” but remember, that same boss only “needs” a cover for his own ass to be able to point to someone else and the ones creating the rotten software do deliver that ;-)

    i do not know any better wording for such a situation than “rotten” thus i name it so.


  • i am happy to have a raspberry pi setup connected to a VLAN switch, internet is behind a modem (like bridged mode) connected with ethernet to one switchport while the raspi routes everything through one tagged physical GB switchport. the setup works fine with two raspi’s and failover without tcp disconnections during an actual failover, only few seconds delay when that happens, so basically voip calls recover after seconds, streaming is not affected, while in a game a second off might be too much already, however as such hardware failures happen rarely, i am running only one of them anyway.

    for firewall i am using shorewall, while for some special routing i also use unbound dns resolver (one can easily configure static results for any record) and haproxy with sni inspection for specific https routing for the rather specialized setup i have.

    my wifi is done by an openwrt but i only use it for having separate wifis bridged to their own vlans.

    thus this setup allows for multi-zone networks at home like a wifi for visitors with daily changing passwords and another fror chromecast or home automation, each with their own rules, hardware redundancy, special tweaking, everything that runs on gnu/linux is possible including pihole, wireguard, ddns solutions, traffic statistics, traffic shaping/QOS, traffic dumps or even SSL interception if you really want to import your own CA into your phone and see what data your phones apps (those that don’t use certificate pinning) are transfering when calling home, and much more.

    however regarding ddns it sometimes feels more safe and reliable to have a somehow reserved IP that would not change. some providers offer rather cheap tunnels for this purpose. i once had a free (ipv6) tunnel at hurricane electronic (besides another one for IPv4) but now i use VMs in data centers.

    i do not see any ready product to be that flexible. however to me the best ready router system seems to be openwrt, you are not bound to a hardware vendor, get security updates longer than with any commercial product, can 1:1 copy your config to a new device even if the hardware changes and has the possibility to add packages with special features to it.

    “openwrt” is IMHO the most flexible ready solution for longtime use. same as “pfsense” is also very worth looking at and has some similarities to openwrt while beeing different.