IRC Logs for #crux Friday, 2017-10-06

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cruxbot[opt.git/3.3]: iperf: 2.0.9 -> 2.0.1007:28
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pedjaso, I was wrong. I know, shocker.09:09
pedjait's not qpdfview that it's broken, it's one of its pdf rendering backends09:10
frinnstlooks OK here fwiw09:11
pedjafrinnst, Arthur is broken, Splash works fine09:18
frinnsti was testing with qpdfview09:18
frinnstarthur? splash?09:18
pedjaSettings/Graphics/PDF/Backend :)09:20
frinnstah09:20
frinnstarthur looks ok too09:21
frinnstnot as good, but still09:21
pedjareally? looks atrocious here for most pdfs. hm09:21
frinnstdont have many pdfs to test with. Complete_NGINX_Cookbook.pdf & nProbe-UsersGuide.pdf looks ok09:22
pedjathat's the thing, some look OK, some...not09:28
pedjalike this https://imgur.com/3NipE3h09:35
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frinnstseems I have yet another novelty twitter account to follow: https://twitter.com/devops_borat/status/41587168870797312?lang=en13:46
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SiFuhhttps://www.rt.com/usa/405883-uber-app-iphone-backdoor/15:55
SiFuhHahaha  Uber has root access ;-)15:55
joacimim sure someone figures out how to use that to gain root access for themselves16:18
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SiFuhjohn_cephalopoda: ping16:28
john_cephalopodaHi16:29
SiFuhhi16:30
john_cephalopodaWhy did you ping me?16:32
SiFuhWhy didn't you pong me?16:32
SiFuhI was just reading your last two sentences from yesterday16:33
SiFuhIn OpenBSD if your kernel has no modular access. It loads and can't be changed. The reason for this, is because if a system boots with a modular kernel, you can load and unload possible modules that can infect your system.16:35
john_cephalopodaYeah. You have to make sure, that the modules you load are safe.16:36
SiFuhAnd if someone has physical access to your computer they could load these modules, or if they hack in remotely they could load these modules16:37
SiFuhroot user cannot change a running kernel (or should not) unless that running kernel allows modules.16:37
john_cephalopodaAs long as they got root rights, yes. They would have more available functionality than when only using userland tools.16:38
john_cephalopodaThe question is, if that difference in functionality is significant or not.16:38
SiFuhYeah but we are talking much deeper than messing around with programs and commands.16:39
john_cephalopodaPrograms and commands can change pretty much everything in a system.16:39
SiFuhIf I manage to hide a code deep inside a kernel module that is loaded on boot everytime. It is much harder to detect than if you were to modify a basic program or command or script.16:40
SiFuhCIA/NSA style hacking16:40
john_cephalopodaWhen you got the power to change a module, you can also modify the kernel, which will give the same effect after a reboot.16:41
SiFuhYeah suppose.. You wouldn't want to compile it on their machine though16:41
john_cephalopodaRight, that's an advantage for using modules. A module can be compiled in a few seconds and can stay hidden in network traffic, while a whole kernel being compiled or transferred is more work.16:42
john_cephalopoda*Advantage for hacking modules16:43
SiFuhAnd DOSing an lpt printer is like a neon light  'you have been hacked'16:43
SiFuhyour intial login is recorded16:43
SiFuhand I don't have my logs print everything. I just print login's and alerts and other important stuff..16:44
SiFuhSo if I am disturbed by a printer going psycho, and I find 1 ream of paper with what-not printed on it. I am sure, someone is hacking me.16:45
john_cephalopodaOr at least (D)DOSing you.16:45
SiFuhI find DOS quite messy16:45
john_cephalopodaDOS and DDOSes are annoying.16:47
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SiFuhFor me, in a perfect world, Plan9 would be the system used world wide, and advanced far ahead of any other OS16:49
SiFuhUnfortunately I live in hell. Every where is Windows and OSX16:49
SiFuhpedja: episode 5 of Orville was weirdly funny16:51
SiFuhand Lethal Weapon episode 2 has already been released16:52
pedjahttps://www.kernel.org/doc/html/latest/admin-guide/module-signing.html16:53
SiFuhI think we should call pedja 'little google'16:53
pedjahardly, anyone who has built the kernel in the last couple of years(?) knows about a option to sign modules17:07
SiFuhpedja: pretty cool17:09
SiFuhI just backup and diff my system daily17:09
SiFuhI will look into this signing17:10
pedjaSiFuh, are you using something like AIDE?17:11
SiFuhno17:11
SiFuhcron rsync md5sum17:12
SiFuhI am old dude I don't even know what AIDE is17:12
pedjayou've heard of Tripwire?17:13
SiFuhyes17:13
SiFuhand I also use OSSEC17:13
pedjaAIDE is open source version of Tripwire17:14
SiFuhI haven't used tripwire since early 200117:14
SiFuharound that time17:14
SiFuhWell I have OSSEC and I don't like it17:14
SiFuhI prefer my cron rsync md5sum17:14
pedjaI'd suggest you move to something like sha256 :)17:17
SiFuhWhat's that?17:17
SiFuh*joke*17:17
SiFuhI am not that old17:17
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pedjacool, next qemu version will add EPYC as a vCPU17:54
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john_cephalopodaRomster: Thanks for updating xscreensaver!22:38
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