Ask Ubuntu General Room

IanC

12:00 AM

@NathanOsman you did mathematics on college? :O

@edwinksl I'll try to invite him to chat

but I'm going have to rely on analogies

edwinksl

i would just suggest OP to read a book to understand the basics

it is clear he's not ready to understand what you wrote

IanC

I'm looking for one of those "spheres colliding" reaction gifs, maybe it gives him an idea

Nathan Osman

@IanC Nope.

But I did develop a personal interest in mathematics.

Twiddles thumbs...

edwinksl

lol

how long should that take

Ubuntu Questions on U&L

0

Q: Create LXD containers on machine with no internet connection

Server: Ubuntu 16.04 Server, x64, no internet connection I have LXD installed but am having trouble getting an image to that server to use as a baseline for containers. I have tried two options so far, with failed results. 1) Export image (Xenial)(meta.tar and rootfs.tar) from machine with ...

edwinksl

12:06 AM

@IanC the real answer requires the use of pKa's :)

Nathan Osman

@edwinksl It's Apple, so at least we can expect some level of competence.

Probably hear back within a day or two.

IanC

@edwinksl, yeah, chemical equilibrium math can get nasty on those complicated "shared" ion cases

I did find this video, which I think I'll link the OP youtube.com/watch?v=dUMmoPdwBy4

(what does OP stand for btw?)

edwinksl

original poster

whoever asked the question

Nathan Osman

Welp.

edwinksl

?

Nathan Osman

12:08 AM

I don't think that's a good thing.

edwinksl

obviously he was going to get it :P

Nathan Osman

Yes, but now the finality is sinking in...

edwinksl

there is no secret we don't learn until s*** happens

perhaps this is something this country simply needs to go through

Nathan Osman

I... I guess I would have to agree.

IanC

@edwinksl the OP could at least accept or upvote my answer after all my effort :'(

Nathan Osman

12:11 AM

Some folks gotta learn the hard way.

edwinksl

yeah this country hasn't seen anyone quite like trump yet

plenty of other european countries have though

@IanC i am not sure why the other answer has a downvote

IanC

it's sad how hate has been a effective crowd controller in the past, how it's easier to make lots of people hate something/someone than embrace something :/

Serg

I'm about to go mad , wall command pisses me off so freakin much

edwinksl

@Serg patch it? :)

Serg

@edwinksl my skills are not good enough to patch it

IanC

12:16 AM

@edwinksl, the other answer is right, it says mostly the same. Probably downvoted because it was hard for the OP to understand? not sure too

edwinksl

@Serg git gud xD

@IanC yeah that's probably it...

Serg

Some how I suspect it has something to do with systemd , and oh boy . . .

edwinksl

when in doubt, blame systemd :)

Serg

WTF Python pics.onsizzle.com/…

edwinksl

that's the classic misuse of is though

and that python caches -5 to 256 or something like that

Serg

12:22 AM

still fails with ==

2*1000000 == 2*100000
False

edwinksl

number of zeros is different though

6 on left, 5 on right

Serg

hmm , missed one

Quill

is is for object reference, not value equality

IanC

you guys have a good notion of TCP/IP protocols?

Serg

Yup , know that

Still funny

And

2*10 is 2*10
True

Why is the objects the same in this specific case anyway ?

>>> 2*10 is 2*10
True
>>> 2*100 is 2*100
True
>>> 2*1000 is 2*1000
False
>>>

Does it cross some kind of limit ?

edwinksl

12:26 AM

@Serg stackoverflow.com/questions/15171695/…

Nathan Osman

is compares objects.

So the interpreter reuses small numbers.

edwinksl

>>> a = 256
>>> b = 256
>>> a is b
True
>>> a = 257
>>> b = 257
>>> a is b
False

Nathan Osman

From the docs:

> "The current implementation keeps an array of integer objects for all integers between -5 and 256, when you create an int in that range you actually just get back a reference to the existing object. So it should be possible to change the value of 1. I suspect the behaviour of Python in this case is undefined. :-)"

docs.python.org/2/c-api/int.html

Granted, that's for Python 2.x but I doubt that changed in Python 3.

edwinksl

still the same, i did my example in python 3

Nathan Osman

So there's your explanation, @Serg.

edwinksl

12:28 AM

dat :-) doe

Serg

When typing in the Python shell each line is a completely different statement, parsed in a different moment, thus:

>>> a = 257
>>> b = 257
>>> a is b
False

But if you put the same code into a file:

$ echo 'a = 257
> b = 257
> print a is b' > testing.py
$ python testing.py
True

/facepalm . . .

so objects also depend on time of compilation ?

Nathan Osman

Or you could just do:

a = 257 ; b = 257 ; a is b

Same result.

Serg

Sigh . . . . even python has its problems

edwinksl

the problem here is the misuse of is

Nathan Osman

@Serg It's not a problem when used correctly.

Quill

12:34 AM

lol what do you expect when you try to use an object reference operator for value equality

Serg

well, everything in python apparently was supposed to be an object , but nobody mentioned that there's a catch to it as well

edwinksl

not sure if i follow

Serg

* at least nobody mentioned it to me while i was starting to learn it

edwinksl

is and == do totally different things, if you use them for unintended uses, then you can't reasonably expect things to work as you expect

Nathan Osman

^--- this

@Serg Everything is an object. But what you were trying to do isn't what you were doing (comparing objects instead of values).

a = 256 is basically saying "the variable 'a' is a name that will refer to an object with a value of 256".

So comparing against a with the is operator is saying "compare [object] to the [object] that a refers to".

The == operator, on the other hand, compares the objects' values.

Serg

12:41 AM

I know it's comparing objects. I know what "is" does. But wouldn't 257 is 257 temporarily create an object ? of the same value ? Instead we're greeted with a limit

Nathan Osman

It's not a limit. You're using it for the wrong purpose.

Whenever you write a program, you are implicitly entering into a contract. You (the programmer) are agreeing to use the language as the documentation describes and the compiler (or interpreter or whatever) is agreeing to operate according to the documentation. Only then can a programmer expect an application to work as intended.

Without this agreement, programming would not exist.

Serg

that's is true

CodeX

@lanC what about it

IanC

@CodeX nothing specific so far, just been reading a book and was wondering what approach you suggest to study it?

@CodeX Should I read each protocol RFC?

CodeX

12:59 AM

what is your goal @lanC

IanC

@CodeX I always been curious about some network security issues, I just want to be able to understand things better

CodeX

@lanC you can start from basic .. IP subnetting .. OSI model ..then how tcp and udp connection works ..

IanC

I'm reading a book I found online, so far so good, but last time I tried to read a TCP/IP book I was understanding good until page 200-300 where things started getting a little too complicated haha

CodeX

haha

it becomes more boring if you read about routing and other stuff

IanC

btw, I have a small doubt

Serg

1:07 AM

CodeX

what is it

Serg

@CodeX you can't see the image ?

CodeX

Wikileaks : 294,548 emails from Turkey's ruling political party, Erdoğan's AKP

oh sorry I was asking LanC @Serg

IanC

@CodeX the book says that packages that goes out in the internet (as opposed to internal networks) need to have an IP approved by InterNIC (for obvious reasons). What happens if a manipulated package with a spoofed IP runs out the internet? Does the internet provider readily sees the anomaly and adress the issue to the source computer?

CodeX

between I was really not able to see the image and post the message for sometime .. because of this DNS thing

IanC

1:11 AM

I just imagine if it was the case, hackers would be easily tracked

the internet provider would just look for some spoofed packages and check which subnet it's coming from

CodeX

@lanC I dont know the technicality of it .. but from what I know .. it is possible to spoof IP .. and it can be stopped at ISP level .. since I work for ISP I have seen issues with spoofed IP from other countries

Packages = Packets I believe ?

ƎpᴉʇʎXD

i'm sick of pokemon go..

Serg

Having a unity laucher item that can dim screen brightness, with just one click - man that was a good idea

Maybe I should post it as Q&A ?

CodeX

me too .. I have that launcher .. full bright and very dim xD

ƎpᴉʇʎXD

@Serg go for it

TheXed

1:15 AM

High?

Serg

@CodeX shakes hands virtually

@TheXed low ?

ƎpᴉʇʎXD

hololens confirmed ?

TheXed

@Serg Middle?

CodeX

@Serg says "nice to meet you " xD

Serg

lol @TheXed I see you're in good humor today

TheXed

1:17 AM

@Serg eh...not really...it's just that it is all I have...

Serg

I need more pillows . . . .this one is so comfy but too small

TheXed

/me smacks @Serg with a rainbow trout pillow

Serg

pukes rainbows

CodeX

watches all this while enjoying my tea at 4 AM

TheXed

/me smacks @CodeX with a rainbow trout pillow also (now you are a willful combatant)

Serg

1:20 AM

And why are you still awake at 4 AM ??? ( and why am I also awake at those hours ? )

CodeX

I I sir

because I can't sleep

I slept whole day

Serg

Fish fight ? Time to take out my . . . . canned tuna machine gun

IanC

@CodeX Sorry, was putting washed clothes to dry! Yeah, I mean't packets, my bad :p
However I was thinking here, the ISP have lots of computers connected to a subnet, which them hops to another one, so if a hacker chooses an IP of another machine on his subnet the ISP wouldn't be able to find out the packets IP is spoofed

CodeX

are we having a girly pillow fight Lol

Serg

@CodeX Welp , at least I'm not the only one who goes to bed at 5 am and wakes at 2 pm

TheXed

1:22 AM

/me runs for cover and gets his rainbow fish fillet cannon gun...

Serg

No, we're having manly fish fight

Nathan Osman

CodeX

yeah @Serg

Nathan Osman

Loading up the tuna cannon...

edwinksl

how does nathan find all these gifs

TheXed

1:22 AM

@NathanOsman yes that is it!

IanC

@CodeX But if the IP was completely out of the subnet possible IPs, the router could easily check on the registered hosts and see the packet doesn't belong to any machine there and discard it

CodeX

though I have to go out at 10

Serg

@NathanOsman that image is still loading for me

Nathan Osman

@Serg Give it a few seconds...

Serg

dammit

TheXed

1:24 AM

Nice...

Serg

Ultimate Pillow Fighting Championship

CodeX

yes but for some reason during my experiment I wasnt able to spoof anything .. packets were dropped at my adsl router level .. @lanC

Seth

@KazWolfe nope

CodeX

either it has something to do with adsl router or MPLS

IanC

@CodeX your own router would discard the packets before sending them??

CodeX

1:26 AM

@lanC yeah it did

Serg

0

Q: how can I view dot bit websites in Linux?

I would like to browse .bit websites, using Firefox, or some other browser in Linux. How can I do this? I was looking at instructions on FreespeachME, but the website says it is currently now working. can some one help me get dot bit domains as being recognized in Ubuntu?

networking firefox

Anybody knows what he's talking about ?

Is .bit site same as .onion ?

CodeX

.bit

.bit is a top-level domain that was created outside the most commonly used Domain Name System (DNS) of the Internet, and is not sanctioned by the Internet Corporation for Assigned Names and Numbers (ICANN). The .bit domain is served via the cryptocurrency, Namecoin infrastructure, which acts as an alternative, decentralized domain name system. Use of the .bit domain requires a copy of the Namecoin blockchain, a supporting public DNS server, or a web browser plug-in. In February 2014, a beta version of a Windows/Linux Firefox plug-in called FreeSpeechMe was released that allows automated resolution...

not sure what IP's they will be using for .bit

ƎpᴉʇʎXD

@Serg suggested edit on that post

IanC

well, going to try to finish reading the first pages on link layer and get some rest

want to wake up early tomorrow to go surfing :)

ƎpᴉʇʎXD

@IanC ok,see you later

IanC

1:34 AM

have a good night you all!

CodeX

@lanC enjoyyy

Seth

I'm sure I have told you this before.. Don't ask people to review your edits.

It will happen in good time.

ƎpᴉʇʎXD

yep

Serg

mkay, me be watching youtubez , but still be lurking here

ƎpᴉʇʎXD

@Seth What do you think? NAA? askubuntu.com/questions/800682/…

CodeX

1:37 AM

OpenNIC

OpenNIC is an alternative network information center/alternative DNS root which lists itself as an alternative to ICANN and its registries. As of 2006 users of the OpenNIC DNS servers are able to resolve all existing ICANN top-level domains as well as their own. Like all alternative root DNS systems, OpenNIC-hosted domains are unreachable to the vast majority of the Internet. Only specific configuration in one's DNS resolver makes these reachable, and very few Internet service providers have this configuration. == History == On June 1, 2000, an article was posted on kuro5hin.org advocatin...

ƎpᴉʇʎXD

I want to try to get ubuntu (old) then upgrade to ubntu (new)

Seth

@ƎpᴉʇʎXD Seems like your question is off-topic.. Windows problem.

ƎpᴉʇʎXD

I know :P

Seth

Search on Super User.

ƎpᴉʇʎXD

@Seth Feel free to hammer down the question

Upgrading From Windows 1.0 to Windows 8 On Actual Hardware

►

Kinda like this guy did but on Ubuntu ^

I saw some more people on the road... playing Pokemon GO..

The earth is r.i.p

TheXed

1:48 AM

@ƎpᴉʇʎXD I play Pokemon GO...

But I haven't been hit by any motor vehicles yet...

ƎpᴉʇʎXD

(Sorry)

the earth turned into a pokeball

TheXed

I figured the world is screwed I might as well join in on the fun...

ƎpᴉʇʎXD

thanks a lot NYANtic...

TheXed

@ƎpᴉʇʎXD You mean Niantic?

ƎpᴉʇʎXD

its a pun :P

TheXed

1:52 AM

Wait...it is a pun on the whaling ship thing?

Android Dev

@Zacharee1 - You online?

ƎpᴉʇʎXD

wish there was a armed riot going over to their servers and blowing them up..

@TheXed Faillwhale?

Android Dev

@KazWolfe Yes

TheXed

I don't even know how to ping you, how do I ping you?

ƎpᴉʇʎXD

me?

TheXed

1:54 AM

Yes...

Journeyman Geek

@CodeX same IPs. In theory you can use hosts files to do that.

Android Dev

@ƎpᴉʇʎXD Were you previously Edity?

TheXed

How to I type your name?

ƎpᴉʇʎXD

yes

Journeyman Geek

@TheXed try @ tab

TheXed

1:54 AM

@ƎpᴉʇʎXD ahhh

@JourneymanGeek thanks...

Journeyman Geek

@ƎpᴉʇʎXD might actually get pinged a lot by accident

Android Dev

@ƎpᴉʇʎXD Hey, that's edityXD upside down!!

ƎpᴉʇʎXD

:P

XD

Journeyman Geek

@ e tab also seems to work for pinging @ƎpᴉʇʎXD

and if @ƎpᴉʇʎXD gets fed up with all the pings...

ƎpᴉʇʎXD

im cool

TheXed

1:56 AM

@ƎpᴉʇʎXD then he can change his name...

ƎpᴉʇʎXD

MUTE DEM PINGS

:D

Journeyman Geek

@TheXed he can't ;p

TheXed

you can mute pings?

Journeyman Geek

sure

ƎpᴉʇʎXD

i like my name being upside down

TheXed

1:56 AM

OH wait...

I see the button

Android Dev

@ƎpᴉʇʎXD Here's another :P

TheXed

I have never seen that before...

Journeyman Geek

of course I use my old phone for notifications so sometimes I get notifications on two phones with a slight delay

and my notifications go CHOO CHOO

CodeX

has anyone tried Github chat ?

ƎpᴉʇʎXD

yet

Journeyman Geek

1:57 AM

@CodeX yeah, the root access weekend gaming group uses it ;p

ƎpᴉʇʎXD

@CodeX gitter?

Android Dev

Does everyone know @Zacharee1's meta post about misspellings?

Zacharee1

@AndroidDev no

CodeX

yeah gitter .. looks pretty

Journeyman Geek

linkie?

CodeX

1:58 AM

they even have linux app for chat

Journeyman Geek

@CodeX been toying with miaou and matrix

Android Dev

@Zacharee1 Are you ready for the picture I'm about to post?

TheXed

Github has a chat? I must know more...

Journeyman Geek

miaou has a better feature set now for actual chatting, matrix is more flexible and more mindshare.

@TheXed gitter

ƎpᴉʇʎXD

@TheXed gitter

Android Dev

1:59 AM

CodeX

gitter.im

Android Dev

@Zacharee1 ^^^^^^^^^^^^^^^^^^^

TheXed

Okay I signed in, what now?

ƎpᴉʇʎXD

if you want to pingme in gitter it's @boomytechy

gitter.im/nitroshare/nitroshare-desktop

Android Dev

35

Q: Ubuntu misspellings

It seems people just can't figure out how to spell the word "Ubuntu." I've personally seen Ubantu, Ubunut and some others, and others have reported seeing Unubtu and even Uboontu. Because of this, I have been working on something I think you will all enjoy. No, it isn't a way to prevent these s...

discussion fun

@Zacharee1 - Wanna add that screenshot to your meta post?

Zacharee1

2:04 AM

You're welcome to edit it in

TheXed

I think it should be ubuntwo...

because of the two feet...

ƎpᴉʇʎXD

uboatu

Nathan Osman

@James aha! I finally found that container proxy I was telling you about: github.com/containous/traefik

Android Dev

@Zacharee1 Done.

Asme Just

Hello :)

Android Dev

2:12 AM

@AsmeJust Hi!

Asme Just

Anyone knows where the theme folder is located in Kubuntu.

edwinksl

maybe /usr/share/themes?

Asme Just

@edwinksl THanks!

Android Dev

2:27 AM

EFI and Linux: the future is here, and it's awful - Matthew Garrett

►

Glad I'm not the only one :)

Zacharee1

wai u no liek efi

TheXed

Ugh where are my headphones...

Wait... how long has it been possible to type apt as opposed to apt-get?

edwinksl

2:43 AM

since 15.10 i believe

TheXed

@edwinksl how come this is the first I have heard of it.

edwinksl

lol not sure

i have been writing my answers here using apt if i am sure OP uses 16.04

spread the news around :)

if you come to chat more often, you would have known about it earlier xD

TheXed

@edwinksl I come to chat as often as my life/wife allows me too.

Nathan Osman

2:59 AM

@Serg around?

TheXed

@NathanOsman can't say I have seen him since I came back...

Nathan Osman

It's okay, I figured it out.

I was wondering how to read user input in a Bash script.

TheXed

I usually put on a pair of glasses on...that helps me read.

Serg

@NathanOsman just woke up

Nathan Osman

It's okay. I've got it now.

read -p "Hostname: " HOSTNAME

Seems to do the trick.

I do have another question though...

If I do this:

read -d '' JSON <<- EOD
    $HOSTNAME
EOF

The variable isn't expanding.

Oh wait. It is.

Serg

3:16 AM

looks like null string , probably it just grabs first space

edwinksl

@Serg just woke up???

Serg

yup

i passed out

TheXed

@edwinksl its like 5 am or something there...

edwinksl

oh where is serg

TheXed

Canada...

Just joking

edwinksl

3:17 AM

is serg not in colorado

Serg

Denver, 9 17pm

TheXed

Washington state I think.

edwinksl

rip sleep schedule

Serg

it's ok, it

it's not like it was fixed anyway

TheXed

I am thinking about just moving in at work...so much to do...and not enough time...

Serg

3:19 AM

or maybe yoiu should find a job that moves in with you

i.e. work from home

TheXed

@Serg but my family hates me too...

So it might be easier with my plan...

Serg

yeah, could be . . . .

edwinksl

dis script doe reddit.com/r/Ubuntu/comments/4taa35/…

i fail to see a real need for the script

Guilherme Nascimento

3:35 AM

Hello guys! Can I promote my addon here in the chat?

TheXed

Anyone have a bag they throw all their tech crap in?

like extra cables and crimpers and troubleshooting crap?

Or maybe I am the only person that has to be a nomad for their job.

Terrance

@TheXed I used to back when I was doing onsite technical repairs.

TheXed

I was looking at this but it seems kind of expensive...

newegg.com/Product/Product.aspx?Item=N82E16834997362

Terrance

But SwissGear makes hands down some of the best backpacks ever. I love mine!! :D

TheXed

Or maybe I just feel guilty to spend tax payers money...

edwinksl

4:03 AM

don't be

taxpayers' money has been used on way worse things

TheXed

@edwinksl some of have to be responsible :-P

@edwinksl just because we work for the government doesn't make us all politicians :-P

Nathan Osman

4:21 AM

Hrm. I have a 3D model here with 800k faces. Time to decimate the mesh a bit.

SmokeDetector

4:34 AM

[ SmokeDetector ] Bad keyword in body, link at end of body, pattern-matching website in body: day in all areas the sector. Nevertheless most commonly the patro by owellonida on askubuntu.com …

Nathan Osman

342,993 vertices. Whistles.

I've got 8 GB of RAM and it's nearly all in use.

It may be time for me to consider a RAM upgrade...

edwinksl

4:51 AM

not sure why you need to buy... you can simply download it :)

SmokeDetector

5:03 AM

[ SmokeDetector ] Bad keyword in body, link at end of body, pattern-matching website in body: its real extraordinary provide of remarkably muscl by artnerjurim on askubuntu.com …

[ SmokeDetector ] Bad keyword in title, link at end of body, pattern-matching website in body: Muscle Building For Skinny Guys by lindolwe on askubuntu.com …

Nathan Osman

5:36 AM

Ta-da: gfycat.com/AmusedCriminalBorzoi

@ParanoidPanda you might get a kick out of that ---^

SmokeDetector

6:02 AM

[ SmokeDetector ] Link following arrow in body, pattern-matching website in body: Your Teeth Can Be Actually Damaged By Some Teeth Whitening Methods by muuhehivejere on askubuntu.com …

George the Dev

6:14 AM

@NathanOsman Hey, that's me!

Nathan Osman

So it is.

Zanna

blender <333

Journeyman Geek

@TheXed I use a cheap army style rucksack

laptops typically go into sleeves anyway, and I throw random stuff into little padded sleeves from a local dollar store

ƎpᴉʇʎXD

6:35 AM

@GeorgetheDev ping google.com

?!?

@GeorgetheDev what time is it?

oh. the bot is off-line.

i'm stupid

Zanna

is this off-topic? askubuntu.com/review/first-posts/593343

ƎpᴉʇʎXD

@Zanna YAS

IT'S AFF TOPIC

edwinksl

i flagged it as off-topic

it belongs to SO or android SE

ƎpᴉʇʎXD

vote to merge to android enthusiasts

Zanna

migrate you mean?

but AE is not for devs... it would be OT there

ƎpᴉʇʎXD

6:47 AM

umm

stack overflow?

Zanna

yeah... thanks folks, I voted to close it

ƎpᴉʇʎXD

Welcome To ubuntuSE! This is off topic here, we only do Ubuntu-related posts here. perhaps try AndroidSE? android.stackexchange.com — ƎpᴉʇʎXD 1 min ago

SE

vote to migrate to Stack Overflow

┬──┬ ¯\_(ツ)

edwinksl

7:07 AM

@Zanna ah you are right the question is still OT at android SE. SO is probably the best place

ƎpᴉʇʎXD

stack overflowed

CollDue96

yes it did

ƎpᴉʇʎXD

it overflowed

@CollDue96, are you actully a user

Nathan Osman

7:31 AM

George packs on some pounds:

(Pardon my lack of sculpting skills.)

Zanna

looks like he's been spending too much time sitting in front of a screen eating crisps... I can relate.

ƎpᴉʇʎXD

:P

┬──┬ ¯_(ツ)

@NathanOsman It looks like he ate stones

but nice actually

ubashu

7:59 AM

@ƎpᴉʇʎXD yes i am a user. I am real now. See mu parent user

ƎpᴉʇʎXD

8:21 AM

:P

Ionică Bizău

8:39 AM

Hi there! Can you guys take a look at my question? I have no idea what the fox will be:

0

Q: Internet on Ubuntu server connected to modem is not working

I'm experimenting to connect my desktop machine running Ubuntu server to the modem. There are two eth outputs. One goes to the router and I used the other one for my desktop computer. The Internet is not working when connected this way. Tho, it works if I connect it to the router eth output. ...

networking internet modem router troubleshooting

ƎpᴉʇʎXD

@IonicăBizău network drivers?

Ionică Bizău

@ƎpᴉʇʎXD I don't think so. But how can I check?

I have iface eth0 inet dhcp in the interfaces file. Could that be the issue?

ƎpᴉʇʎXD

8:57 AM

that could

Ionică Bizău

How to change it?

Transcript for