Ask Ubuntu General Room

user136984

18:36

What would happen if I ping flooded my own router while connected to it? Would it do anything bad to my router? Or would it be just like an external attack (the router would just discard the packets)?

user136984

@Fabby: Do you know? And yep, I am thinking about doing this to my home router! >:D :P

user136984

Well, the thought entered my head, but I decided that it could go wrong and so as not to do it... But I am just curious what would happen if I did do that.

Fabby

Depending on your router config, it will:

accept and reply

crash

reject

It's your own router: go for it!

The worst you'll have to do is to unplug/replug

user136984

Could I cause any damage? Or would it juts shutdown or something?

Fabby

just crash...

Well, the REALLY worst that could happen is that the crash erases your flash storage, but that's really unlikely!

>:)

Normally it will just reply

user136984

18:40

Hmm... I think I'll do it to someone else's router when I'm connected to it... >:P Don't want to cause any possibly damage to mine...

Fabby

as most ping ignores are on the outside NIC

Nah!

Just do it!

Whose property is it?

yours or the ISP's?

user136984

I have no idea...

user136984

Well, we've got a home router which we bought, so I assume that that is ours.

Fabby

What do you mean???

ah! YES!

Still under warranty?

user136984

But I'm not too sure what my parents will think of me killing the router... I already contributed to the death of the last one... :D

user136984

18:42

I don't know about the warranty.

Fabby

What did you do to contribute to its death???

How long ago did your parents buy the last one?

user136984

I don't know... Probably about a year ago...

Fabby

more then a year or less then a year?

user136984

Well, I used to be sat next to the old one, and the wire went next to my char and each time I sat down it would fall on the floor... And eventually the PCB smashed...

user136984

Let me think, if my memory serves me well, probably under a year, but it could have been more...

Fabby

18:45

Look up the warranty card...

user136984

Oh dear, first I spelt it as "flaw", then "flour", and then finally released that it was "floor"... :P

Fabby

If it's still under warranty: go for it

if not: definitely don't do it to someone else's router!

(smug smile)

user136984

It's very odd, when I press the letter "B" the letter "D" keeps on getting printed... :D

Fabby

Don't come crying like a girl if you don't listen to me!

That's called dyslexia

You've got a dyslectic computer!

user136984

:D

Fabby

18:47

:D :D :D

user136984

Maybe I should ping flood my website instead...

Fabby

That has to go through your router! :D Dummy! >:)

user136984

Although I remember that the hosting space clearly said that I would not be allowed to DOS attack it...

Fabby

indeed!

user136984

Oh, so even if I ping flood someone through my router my router still crashes...?

user136984

18:48

So how do people DOS attack then if their routers will just crash? :D

Fabby

if you want to test it, test your own router or stop nagging me about it

No, you use a botnet

every single bot has low network usage, but in a swarm...

just like killer bees

One is no issue, 10 neither, but a 100 or a 1000...

user136984

Hmm... Ok, I remember reading about how to make those at some point... :D Although that was because I thought that I had one and wanted to know more about it! :D

Fabby

If you want to be part of a botnet,

user136984

But the site which gave information about it actually gave me one so... :P

Fabby

just install XP on a machine

don't install any patches

and hook it up directly to the Internet!

(no router, no nothing!)

user136984

18:51

Ok...

Fabby

It's a zombie within 5 minutes!

>:)

have a look here:

user136984

If your computer becomes a bot, will the hackers be nice and just leave it at that, or will they also do something bad to you? Well, I suppose that that depends on the hacker... :D

Fabby

53

A: My server is constantly being attacked

Welcome to the wonderful world of the Internet... Have you: put your server behind a hardware firewall? activated the software firewall? (just in case the HW firewall glitches) hardened your server? installed rkhunter before putting it online? activated automatic daily security updates? change...

user136984

@Fabby: Anyway, it is more likely that I will get one, than I will developing one or start DDOSing or DOSing people! :D :P

ByteCommander

0

Q: I can't open software updater and unity tweak tool [Ubuntu14.04]

i have a notification nearly time. That note 'An error occurred while checking for updates => [TR Language] Güncellemeler denetlenirken bir sorun oluştu.' I can't open software updater, languages, Unity tweak tool. $ sudo unity-tweak-tool enter code here Traceback (most recent call last): ...

Can anybody help this poor guy ^? I have compassion for people suffering from python problems...

Ubuntu Questions on U&L

19:21

0

Q: Shell script to find number of vowels in script

This is the script: clear echo read str len=`expr length $str` count=0 while [ $len -gt 0 ] do ch=`echo $str | cut -c $len` case $ch [(aeiouAEIOU)] count=`expr $count + 1` echo $ch ;; len=`expr $len - 1` done echo $count Error: prog6: line 12: syntax error: unexpected newline (expecting ")")

ubuntu

Fabby

@ByteCommander Then we need Karel! ;-)

ByteCommander

Karel? Do I know him?

Fabby

@ByteCommander Jacob Vlijm is who I was referring to...

He's a Python guru

But this is a dbus problem...

I've added the correct tag.

ByteCommander

19:37

@Fabby Ah, the guy with a script for everything! :-)

Fabby

Yup!

ByteCommander

Is he ever in chat? I've never seen him in here...

Fabby

Yup!

ByteCommander

Only got in contact with him on a few questions where usually others tried to describe some GUI approaches a s answers and he just -wham!- dumps a cryptic script...

Which normally works, of course! :)

SmokeDetector

[ SmokeDetector ] Blacklisted user: I think my PC is being hacked. What should I do? by Douglas Jones on askubuntu.com

Fabby

19:50

Why was the above user blacklisted?

(I'm guilty of starring that, as I don't want to call in a mod)

(answer whenever you see this)

ByteCommander

@Fabby That was the whining paranoid who wrote essays about the FBI and his father-in-law.

Probably because is Q got -9?

Fabby

I remember that... I answered his Q

ByteCommander

Off to eat something. brb

Fabby

is that why you get blacklisted? I've had Questions with -4 already (deleted in the mean time)

Guten Appetit

Nathan Osman

Gonna give OSMC a try.

Nathan Osman

20:15

ByteCommander

@NathanOsman Nice computer desk. Am I counting 1 keyboard, 2 monitors, 3 mice, 1.5m cable and a Pi?

Nathan Osman

No, there's two keyboards in the picture.

And only two mice. And two ethernet cables, though one is disconnected.

Oh wait.

I forgot about the wireless mouse sitting on the Mac.

Yeah, there's three :P

ByteCommander

Ah, missed the keyboard in the drawer.

But I can add a smartphone and two mignon cells.

plus an SD card and something that looks like an USB wireless dongle to me - or simply a stick.

It's somehow interesting how people manage to fill up their desks... ;)

Nathan Osman

There's more there than meets the eye.

There's a NAS hiding behind the monitor on the right.

The "envelope" is actually a USB LED that can light up.

The "smartphone" is an old Android device for testing.

It's sitting on a 12,000 mAh lithium battery.

ByteCommander

@NathanOsman Looked like a pack of butter to me actually. That's why I thought better not to mention it ;)

Nathan Osman

20:26

That USB device is actually a flash drive.

Oh, and there's also a speaker behind the other side of the monitor on the right.

ByteCommander

\o/ Speakers!

;D The most important device.

Nathan Osman

I wish they weren't behind the monitors.

But there's no room anywhere else.

hbdgaf

How do features compare between something like an xmbc-raspi and osmc? Or is it a moral/ethical conflict with using closed source codecs?

Nathan Osman

I only ever used XBMC (Kodi) on Raspbian before.

That way I could easily SSH into the device to manually fix things up.

(SMB works horribly in userspace on the Pi, but works alright when mounted as a CIFS fileystem.)

Weird, I took the microSD card out of the Pi and manually added entries to /etc/fstab to mount a couple of shares from my NAS. However, they didn't auto-mount until I SSH-ed into the device and manually mounted them...

Weird.

Mateo

@NathanOsman cleaner than my desk right now, mine looks more like Linus's right now but sans the 3d-printer and treadmill :p

Nathan Osman

20:41

Mine is pretty messy... you only saw the right half of it... :P

Mateo

pushes everything to otherside of desk...

ByteCommander

Thank god my laptop doesn't have a webcam...

Mateo

@ByteCommander oh, I didn't downboat that one yet so now -10

I setup a win7 computer once really awesome, first removed internet explorer from the features, then set up a new user that didn't have any privilidges, and then setup parental controls to only whitelist one program - then removed all the other accounts...

ByteCommander

And why?

Mateo

Sometimes the only answer is "because you can"

ByteCommander

20:56

What would happen if you misuse cacls to set the permissions of the windows directory to nobody?

You could try that too...

Mateo

But it was epic, you couldn't login to admin, and you didn't have a account to enter a password to authorize anything even if you wanted

ByteCommander

1440

Q: Why does Windows think that my wireless keyboard is a toaster?

I've inherited an old PC from my girlfriend's dad and when setting up the printer I got a bit of a surprise: Two questions spring to mind here: Why does Windows think my wireless keyboard is a toaster? Why does Windows even have an icon for a toaster in the devices menu?

windows-7 device-manager

^ :D Unbelievable funny!

@Mateo Did you also nuke the hidden Administrator?

Mateo

Yep

ByteCommander

Could you still have modified the accessibility (Win+U) exe and replace it with cmd to get a system permission console?

Mateo

Hm...

ByteCommander

21:03

I mean you would have to do it from a live system as it's a system file, but would be a chance to get it back to normal, no?

Mateo

Small chance, I suppose

Didn't investigate what would make it past the whitelist...

So accessibility might have been one the let you launch

ByteCommander

The Win+U accessibility tools should do. You should even be able to run them (or replaced by cmd) from the login screen, without having logged in.

I suppose whitelist only is user-specific, so does not apply to the login-screen

<-- Can't believe this answer was worth 1400 upvotes and a +100 bounty:

1403

A: Why does Windows think that my wireless keyboard is a toaster?

Reason 1 Because Microsoft made a toaster driver sample. In the sample there is the line <DeviceIconFile>Toaster.ico</DeviceIconFile> and there is a chance that your keyboard manufacturer took that sample. Reason 2 Look at the back of the keyboard for some place to insert a slice of bread…

Mateo

Lol, lazy device manufactures just reused the example driver...

Nathan Osman

Argh... left-click stopped working again...

ByteCommander

Mouse needs a cleaning?

Nathan Osman

21:11

No, mouse works fine. X11/Unity just goes crazy.

ByteCommander

:P Poor penguin...

Nathan Osman

Hey cool - AirPlay works in Kodi.

I can stream from iTunes directly to Kodi.

Mateo

iTunes?

Nathan Osman

On the Mac.

No idea if there is a Linux app that can do the same thing.

Mateo

Oh like from a Mac - to the pi

Nathan Osman