Ask Ubuntu General Room

Q: Is there a way to prevent files to be create or uploaded beyond 8mb

4:21 AM

I just want to make sure my students to be uploading files not bigger than 8MB in our file repository. Is it possible for me to do it in ubuntu linux?

Nathan Osman

Why is the Gimp linking against libjson-c.so.2...

Nathan Osman

4:40 AM

#LooksLegit

Seth

#TinderOverflow

Nathan Osman

Lol

Q: Ask Ubuntu to pick debians from directory instead of from repo

5:07 AM

I need some assistance with informing Ubuntu to pick debians from the folder (provided) instead of picking from its own repository. The case that I am trying is as follows: 1. We install Ubuntu 16.04 OS 2. Extract the package and install/extract debians to specific folder. 3. Reboot machine Now...

linux debian ubuntu repository

2 hours later…

Q: WRF.exe and tc.exe file is not generating after successfully installed the library in WRF model on linux platform.

7:17 AM

HDF5 not set in environment. Will configure WRF for use without. PHDF5 not set in environment. Will configure WRF for use without. Will use 'time' to report timing information $JASPERLIB or $JASPERINC not found in environment, configuring to build without grib2 I/O... Please select from amo...

linux ubuntu gcc fortran

3 hours later…

user136984

10:23 AM

I am developing an app for developers to use, as a part of the configuration, a user will have to set a format to use, in said format the configuration goes like this, you have to set variables with a "$" just before them and then the name. So for instance "$BigG" would be interpreted as a value when printed.

user136984

Is this fairly obvious?

user136984

That is, will most programmers understand that "$variable" is a variable just from the "$"? Or is this not a widely known programming concept?

user136984

It's just that I'm doing the documentation at the moment and I am wondering to what degree I need to explain this to people.

Sigil (computer programming)

10:40 AM

It's quite well known, yes. It's the standard shell format, and that should be enough already, but is also used in various other languages like Perl, Ruby, PHP, BASIC. . .

In computer programming, a sigil () is a symbol attached to a variable name, showing the variable's datatype or scope, usually a prefix, as in $foo, where $ is the sigil. Sigil, from the Latin sigillum, meaning a "little sign", means a sign or image supposedly having magical power. In 1999 Philip Gwyn adopted the term "to mean the funny character at the front of a Perl variable". == Historical context == The use of sigils was popularized by the BASIC programming language. The best known example of a sigil in BASIC is the dollar sign ("$") appended to the names of all strings. Many BASIC dialects...

morning guys

quick question

I've created a virtual box with ubuntu in it

I want the VB to be able to be reached with a domain name like www.miaou-test.com

issue is I do not have a fix Ip address

more of a dynamic one as I travel often and use the wifi that I can get

I tried to put in the /etc/hosts the ip address and the domain name

but as the ip address change each time, each time , I need to change the ip address in the file

is there a way to say to the host file, regardless of the ip address, use your current ip address for that domain name, www.miaou-test.com?

@AndyK do you need it to be reachable from the host machine only, or from any machine on the internet?

@terdon hi, more on the local network where I am

not any machine

a friend raised the idea of using dyndns.org

but that would prove a bit much for just some testing and developing

But from machines other than the host?

yes from other machines other than the host

10:54 AM

More to the point, does it need to be accessible via external IP or can you use the internal one?

only internal ones

Then use a static IP

You don't care about the external IP (which isn't static), just set the VM up to always take a specific local IP like 192.168.1.42 or something.

I put that on my hosts file

127.0.0.1       localhost
127.0.1.1       ubuntu1
127.0.1.1       www.miaou-one.com

issue is cannot reached www.miaou-one.com from another machine

would something like that work?

127.0.0.1 localhost
127.0.1.1 ubuntu1
127.0.1.1 192.168.2.42
192.168.2.42 www.miaou-one.com

Yes, but not in /etc/hosts.

Canonical, in their infinite wisdom, have apparently changed the standard approach of using /etc/network/interfaces and you now need to use something called "Netplan":

@terdon where?

10:57 AM

howtoforge.com/linux-basics-set-a-static-ip-on-ubuntu

@terdon you're the man

need to read that and implement it

was trying to explain it to some french mates and they did not get it

probably have issue with my french

The basic idea is that you just want to make sure your VM always gets the same internal IP. That shouldn't be too hard. And then you can modify your /etc/hosts so that www.miaou-one.com points to that IP.

@AndyK Ils sont fous ces Gaulois...

yes that's it @terdon

you hear me, loud and clear

@terdon trop fous... -_-

11:04 AM

user136984

11:24 AM

@terdon Great! Thanks! I thought it probably would be. :)

Byte Commander

11:41 AM

Anyone having an idea how I can find out why my system reports high load average (3.8 for 4 CPU threads) although CPU usage is around 20% and also only low disk or network I/O?

2 hours later…

TheWanderer

1:39 PM

',:)

2 hours later…