Ask Ubuntu General Room

People at work teased me when I told them I was visiting this site a few months ago they said.... you'll never keep up those young people are too smart for you :p

Nathan Osman

That included a special BASIC dialect.

WinEunuuchs2Unix

The calculator @NathanOsman?

Nathan Osman

And if you could get your hands on Zilog's assembler, you could even write native code for it.

@WinEunuuchs2Unix yes.

The TI-84 had USB IIRC.

WinEunuuchs2Unix

The calculator was invented (or became mainstream) when I was in grade 6 but it was banned for exams until after grade 10 or 11.

Nathan Osman

12:10 AM

Some crazy dude wrote a USB driver stack for it so that it was possible to connect a USB flash drive to the calculator.

I remember my mind being blown.

usb8x.sourceforge.net

WinEunuuchs2Unix

I saw a video where a guy connected a raspberry pi via USB to computer and hacked it... that was an eye-opener.

not much bigger than a credit card in 2d size.

Well company chrimstmas party tonight... gotta go prep.... see ya's later.

Nathan Osman

Have a nice evening.

WinEunuuchs2Unix

Thanks... we have a great group at work... best blue collar job I've ever had... It'll be a good time :)

poof

TheXed

@WinEunuuchs2Unix you need to watch Mr. Robot...

Serg

12:47 AM

That's uh . . . very nice modem . . .

Journeyman Geek

headtilt

Serg

Maybe they misspelled it, model not modem . . . . and the rest of the stuff . . .

Edity

LOL

@Serg no, its CLICKBAIT

REPORT CISCO FOR CLICKBAITING XDDDDDD

edwinksl

1:15 AM

trippy codegolf.stackexchange.com/questions/101805/…

Serg

@_@

Edity

@__@__@__@__@__@__@___@___@___@___@___@___@___@____@

Nathan Osman

I am completely baffled. I have an element with a phantom margin. Chrome inspector can't even be consistent. The box model shows a margin but the "Computed" styles tab shows no margin.

Argh.

Edity

hmm

i wonder what happens if i mess with the coding on inspector?

lol

ooo

Serg

@edwinksl you know, some of those lined-up circle images make up for nice wallpapers

Edity

1:19 AM

i found a hidden fkey

i changed the value to 1311

i put serg's popup screen on the left

Serg

my popup screen ? I didn't know I had one

Edity

when you click a user's profile pic

Serg

oh

Edity

lol

im messing with the askubuntu chat code

i replaced your name with the kick-mute code.

did nothing :)

Nathan Osman

The fkey is unique to your session.

Edity

1:26 AM

oh

i replaced the value

lets refresh

?!?

Nathan Osman

You won't be able to do anything by changing it.

Edity

oh

every time you refresh, you get a new fkey?

?!?

Mateo

1:43 AM

@TheXed 20% less expensive?

Serg

2:00 AM

anxiety sets in . . . .

Serg

3:16 AM

Holly crap, theres bunch of police and emergency vehicles , someone had real nasty accident

Mark Yisri

3:46 AM

@Serg where?

Edity

4:35 AM

@Serg i've seen worse

Serg

5:14 AM

@MarkYisri that was next to my University. There's one intersection there that's super confusing, so no surprise there's accident

Serg

5:35 AM

well, I'm gonna go mess around with my router again. I doubt it will work, but meh

Edity

6:26 AM

@Serg don't spend like quarter of your money by messing with routers XD

Edity

6:57 AM

hi henry

Serg

@Edity technically I already have :/

Edity

@Serg did i read your mind?

Serg

@Edity does your mind run on 2.4 GHz frequency ? ;)

Edity

nah it runs Fibre

there is a 5G band that ~~I use~~ my brain uses

Takkat

9:26 AM

Jay Populist came over me

Edity

lol nice

Zanna

@Takkat congratulations :D

Takkat

thanks, one of those badges that come as a surprise \o/

totally unexpected.

Serg

gratz

Edity

woo, smokey rolled over API

askubuntu: 468 spam

Zanna

10:21 AM

ugh horrible answer I think askubuntu.com/a/845294/527764

Edity

night all

Zanna

goodnight :)

Zanna

10:37 AM

Are you using Ubuntu? — Anwar 3 mins ago

Journeyman Geek

... people need to stop installing kali linux

user136984

11:17 AM

Ooh... I am now both a Communist and a Socialist! And don't ask how! :P

Zanna

congratulations...

user136984

I am also an Anarchist and a Japanese Conservative (different meaning to what we have in England). They conserve the the culture and Japan rather than just being all about money.

Zanna

11:41 AM

awesome :)

yeah Japan has a lot of socio-political structures worth conserving :)

Zanna

12:03 PM

Or socio-economic I guess I mean... but what do I know...

terdon

1:33 PM

@Zanna are you sure there is any reason no to use sudo with GUI apps these days?

At least on my system, there's no longer a ~/.Xauthority file and sudo sets $HOME to /root by default.

$ sudo env | grep HOME
HOME=/root

Journeyman Geek

@ParanoidPanda those are vaguely related

terdon

$ ls ~/.Xauthority
ls: cannot access '/home/terdon/.Xauthority': No such file or directory
$ env | grep XAUTH
XAUTHORITY=/run/user/1000/gdm/Xauthority

Journeyman Geek

@ParanoidPanda seppaku is an option then

terdon

I know AU has always been a little ~~obsessed~~ against sudo and GUI apps but I've never quite understood why. It was only ever a problem if you chose to change the app's settings while running it as root or if you ran it for the first time and it created a conf file.

Journeyman Geek

@terdon its slightly snake oil.

terdon

1:37 PM

?

Journeyman Geek

help.ubuntu.com/community/RootSudo#Graphical_sudo

this is why

but.. there's very few times you need to use sudo in gui on its own

and when you do, well, it'll take care of it

terdon

@JourneymanGeek Yes, I know. And it's no longer relevant.

Journeyman Geek

ah, then someone should update that ;p

terdon

That's my point.

Journeyman Geek

and well I've never bothered cause I've never needed to use sudo in gui myself

So, why's it obsolete?

terdon

1:41 PM

It never was a big deal anyway. I've been using sudo emacs when necessary for years and never had an issue.

Journeyman Geek

sudo changed behaviour?

terdon

Certainly on my system, yes. Dunno if Ubuntu is lagging behind here.

Journeyman Geek

which is plausible

terdon

But my sudo sets HOME to /root and the .Xauthority file has been moved to /run/user/1000/gdm/Xauthority (that, I think, is not the case for Ubuntu)

Not to mention that Ubuntu stopped shipping with gksudo years ago.

edwinksl

$ sudo env | grep HOME
HOME=/home/edwinksl

terdon

1:43 PM

OK, so Ubuntu is being silly.

Still, 9 times out of 10 it's not an issue.

Just don't change gedit's settings when running it with sudo.

edwinksl

not an issue for people who know what is happening

terdon

Dunno, even for those who don't, I've never seen why it would be an issue. It's such a fringe case.

More to the point, since Ubuntu doesn't ship with gksu anymore, the advice is flat out wrong.

edwinksl

this can be a meta question

terdon

Dunno. More of a main site question, really.

edwinksl

sure

Journeyman Geek

2:19 PM

definitely a main site question

edwinksl

depends on what is actually being asked

jokerdino

@JourneymanGeek defiantly

irregardless

oh he fixed it.

but of course

2:33 PM

@edwinksl Ugh

edwinksl

literally ugh?

Journeyman Geek

literally literally?

edwinksl

literally is definately the worse word abused ever

Journeyman Geek

literally?

edwinksl

mayhap

terdon

2:35 PM

perchance

Journeyman Geek

verily

edwinksl

lulz

Videonauth

u all weird literally :p

Journeyman Geek

I resemble that remark

Zanna

3:48 PM

But >_< I swear like 3 months ago Kaz Wolfe got like 40 upvotes just for answering a question that was actually about something else with DON'T USE GUI APPS WITH SUDO... what meeting did I miss?

terdon

@Zanna That's what I'm wondering. I've never understood AU's thing about that.

It's just like the thing about Ubuntu users and sudo su.

They seem to be memes that have propagated for some reason that's really not clear to me.

Maybe the sudo GUI app thing is worse than I think, I dunno. I've just never understood the brouhaha over it.

Zanna

What's that thing about sudo su? I do sudo i for all these purposes

terdon

@Zanna Yep. But the various sites about Ubuntu are full of sudo su examples. Something I hadn't seen anywhere else. It's no big deal, it just bugs me 'cause it's inelegant to use two programs where one (either sudo -i or, if enabled, su) would do.

I even asked a question about it once.

52

Q: Is there ever a good reason to run sudo su?

To launch a root shell on machines where the root account is disabled, you can run one of: sudo -i : run an interactive login shell (reads /root/.bashrc and /root/.profile) sudo -s : run a non-login interactive shell (reads /root/.bashrc) In the Ubuntu world, I very often see sudo su suggeste...

askubuntu.com/search?q=%22sudo+su%22

Zanna

@terdon a popular question :)

terdon

Yeah, I think it made the HNQ at some point.

Zanna

4:04 PM

Well no surprise there... maybe the network used to be hotter though

Rinzwind

\o

Byte Commander

Rinzy!

Yowsup?

Rinzwind

won some money today :)
so all is good.

Byte Commander

Lying in bed with a cold...

Rinzwind

me too but not with a cold :=)

getting some food prepared and then it is 1 long FF15 gaming session :D

Byte Commander

4:18 PM

I'll try taking a nap. bye

Zanna

@edwinksl hahaha so much. Someone told me that literally has a new meaning in the dictionary like "2: metaphorically". I may have shot that messenger...

user136984

Anyone got any ideas on this?

user136984

0

Q: How to view live file system of QEMU/KVM VM externally?

I require to view the file system of a QEMU/KVM (with virt-manager as a GUI) Ubuntu VM with live updates to the information. Though I require to view this information externally from the VM (in the host). That is it would not be practice to view it from within the VM, but rather the host. Is ther...

filesystem virtualization kvm vm qemu

user136984

@JourneymanGeek Thank you... :P

user136984

4:34 PM

Although unlike most politicians, I have a sense of time when one thing will be good and another not. For instance, like with Communism in Russian (although they never really tried), it was all done at the wrong time and therefore fell to pieces only giving itself a bad name.

user136984

So with Anarchism, I believe that one day we will be ready for a leaderless society, however I do not believe that our society is currently ready for that so even if it's not ready for it in my entire lifetime, I will not push for it.

Mark Yisri

@Byte you have a cold too :(

Wait till @cl-netbox hears about this

IanC

4:53 PM

good afternoon!

edwinksl

5:11 PM

@Zanna literally shot? or literally literally shot? :\

Alex

5:23 PM

hello everyone

i'm trying to import a database. it has 40 MB so it will be faster to do it on ssh. however I have never done it and would like confirmation in the accuracy in the steps i found

first I need to upload the database to the server, correct?

and then enter this:
mysql -u <user> -p<password> <dbname> < file.sql

user136984

5:38 PM

Is anyone here running Debian and able to just quickly check something for me?

user136984

Actually, ever mind...

user136984

I figured it out.

Zacharee1

AU spazzed out

Byte Commander

What browser and version?

edwinksl

microsoft edge?

Byte Commander

5:43 PM

yikes

Zacharee1

lol

Chrome

I refreshed and it went back to normal

Byte Commander

Stable or a beta/dev version?

Zacharee1

Windows

so idk

Byte Commander

yikes again

IanC

6:07 PM

well, I bought the LP mp3 converter/player, let's hope it's good so my father can make good use of it with his old records :) @Zanna @Seth

Edity

mornin'

@Zacharee1 woah

user136984

@ByteCommander: Do you follow me on GitHub by the way?

user136984

Because I just created a new project there. :)

Edity

i never knew ^

@ParanoidPanda what is it?

user136984

6:28 PM

@Edity: It's a useful little script I really made for myself which check if a reboot is required after an update and also tells you which packages require the update.

Byte Commander

@ParanoidPanda I don't know, might be. But actually I never check the events of peoples I follow :P

Edity

oh :)

Alex

I have a vps on amazon web services and I use the ubuntu username to access ftp with FileZilla
is it possible to create another ftp user with access only to /var/www/html ?

user136984

@ByteCommander: I just checked and you are following me. I don't really check events of people I follow either. But please do have a look at my project. :)

Byte Commander

You placed your real name in that script?

Edity

6:37 PM

can i have a look too? @ParanoidPanda

Byte Commander

Actually it seems like your whole construction of dozens different online accounts is collapsing...

user136984

@ByteCommander: Yes, for copyright reasons.

Byte Commander

Who cares about (C)?

user136984

It's not like there's really any of my personal information or anything bad about me on the internet.

Byte Commander

It should work with a nickname as well, I think...

user136984

6:38 PM

So it's probably not such a big deal...

user136984

Anyhow, I have a different rule for sites which the 'real' me is represented on.

user136984

For instance on LaunchPad it is important for me to use my real name.

user136984

@Edity: Just search for CheckNOR on GitHub.

user136984

You get two results, the exact is mine. :)

Byte Commander

Don't make an option "-ji"

user136984

6:40 PM

@ByteCommander: Why not?

Byte Commander

short options should be one letter only.

user136984

Ah...

Byte Commander

And just use a proper argument parser.

Don't do it yourself.

Edity

,

user136984

@ByteCommander: Right, I've fixed the issue...

user136984

6:43 PM

A proper argument parser?

Byte Commander

You could also replace many of those y/n variables and ifs with functions

Zanna

@IanC awesome

Zacharee1

Byte Commander

That way you only need to check the condition once and call the funtion instead of checking the condition, setting a variable and then checking that variable later again.

Zacharee1

:D

Byte Commander

6:44 PM

@Zacharee1 Now jump over them on your bike

Zacharee1

lol

user136984

@ByteCommander: Right, well I guess I will have a look into that later...

user136984

Thanks for letting me know! :)

Edity

@Zacharee1 drop test all of them

Zacharee1

no

Alex

6:46 PM

I created a swap file some days ago. I just reboot the system and now have the memory problems again. I assume I have to activate the sawp file. how I do that?

Zanna

@edwinksl Haha >_< Actually I think I did a double facepalm and wailed nooooooooooo

@Zacharee1 !!!

Byte Commander

@Zacharee1 like that:

Zacharee1

Getting rid of the Note 4 on the right though :/

Byte Commander

just smaller

Zacharee1

heh

I'll get my hamster and a tiny bike

Byte Commander

6:48 PM

@Alex place an entry for it in /etc/fstab

Alex

I don't have that directory. am I missing something?

Byte Commander

It's a file.

26

Q: Adding a new swap file. How to edit fstab to enable swap after reboot?

I've deleted my existing swap partition due to some partitioning problem. I don't have a swap space now so I've created a swap file with: dd if=/dev/zero of=/root/myswapfile bs=1M count=1024 Here's after swapon -s: /root/myswapfile file 1048572 1320 -1 Now I want to edit my /etc...

swap fstab

And you must have it.

I think it is impossible to boot without one...

Alex

right, I thought it was a directory and didn't check the files. my bad

Zacharee1

7:04 PM

@Alex in Linux, we usually denote directories with a trailing slash: /usr/local/

since files don't always have extensions

Alex

yeah, I just looked at it too fast and assumed it was a directory

I opened the file and it has the following:
LABEL=cloudimg-rootfs / ext4 defaults,discard 0 0

is it correct? now i just add there:
/swapfile swap swap defaults 0 0

Byte Commander

7:24 PM

I have /swapfile none swap sw 0 0 in mine... not sure what's the difference.

Alex

took that from a tutorial. as long as both work, that's fine for me ^^

and you

edwinksl

7:47 PM

@Zanna ohhh 20k party soon

Zanna

@edwinksl ^_^ slow going at the moment though!

SmokeDetector

[ SmokeDetector | MS ] Pattern-matching website in answer: 'apt-get update' Error by Talha Ali on askubuntu.com

Zanna

I'm trying to learn about cron so I can fix something in cleanup... this should help me do lots of cool stuff and maybe answer a few questions, since a lot of folks seem to have troubles with cron

@SmokeDetector hmm that's not spam... but I'm not sure what we should do with it

Nathan Osman

8:07 PM

Er..... oops.

I was load-testing a website and forgot the HTTP host header.

And that's an error that triggers an email alert.

Zanna

oops haha

Nathan Osman

So, long story short, I just sent myself 200 emails.

It's a good thing I didn't try it with 1000 requests :D

I guess I ended up load-testing my email app too :P

Hmm... looks like it was 300.

Serg

finally on the new modem ! \ 0/

Not the speediest connection , but at least it works

$ ping -c 4 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=58 time=211 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=58 time=215 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=58 time=203 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=58 time=50.1 ms

--- 8.8.8.8 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3000ms
rtt min/avg/max/mdev = 50.114/170.142/215.215/69.429 ms

edwinksl

30.9
Mbps download
11.4
Mbps upload

1.28 seems pretty slow :/

Serg

eh, I'm on DSL connection, of course it's slow

well, at least it twerks :D

Nathan Osman

8:26 PM

Well, they were all delivered :P

Next time I'll be more careful.

Serg

8:45 PM

1080p60 youtube still lags

720p60 is kinda ok, if i pause and preload video

Nathan Osman

@Serg Due to Internet or processing capability?

1080p 60fps puts a pretty heavy load on the CPU unless you have GPU offloading.

Serg

9:01 PM

@NathanOsman yeah, my cheapo laptop doesn't have that great of a GPU

Nathan Osman

This is a long shot but... anyone familiar with uWSGI around?

I can't seem to get HTTP keepalive to work.

Seth

@terdon Even I've accidentally messed stuff up by running graphical apps with sudo, and I knew better!

it's not as hard as you think.

but I'd guess you don't do it for the same reason you don't parse ls ;)

Nathan Osman

<--- that special moment when you are using netcat and performing the server side of an HTTP connection by hand

edwinksl

The Last of Us Part II - PSX 2016: Reveal Trailer | PS4

►

holy shit

Serg

was measuring signal strength, look alright. about -40 - 38 dBm indoors, around -50 -60 outside

edwinksl

9:16 PM

see if you can play that on 4k :p

Serg

@edwinksl 4k on what ?

edwinksl

the video i posted

my toaster went nuts

6

Serg

Ha, i can't play 1080p without pre-loading it, same with 4k

looks amazing though, wish i could play on 4k

edwinksl

yeah my intel gpu couldn't do it without lag :/

Nathan Osman

I don't have a 4k display.

I used to have a phone with a 2k display.

Zacharee1

9:34 PM

ugh

the way my phone searches for service is so weird

it'll lose it, start roaming on AT&T or VZW, then it'll stay roaming until it goes out of service, only to reconnect to T-Mobile at full LTE.

Nathan Osman

* Connection #0 to host myhost left intact
* Found bundle for host myhost: 0x5640bb824630 [can pipeline]
* Connection 0 seems to be dead!
* Closing connection 0

O_o

Well, that confirms what I've been seeing but it does nothing to indicate the problem.

Seth