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Alix Axel's questions

Martin Hope
Alix Axel
Asked: 2018-06-24 03:11:31 +0800 CST
  • 28

I've run ulimit -n 65536, added the following lines to /etc/security/limits.conf:

*    soft nofile 65536
*    hard nofile 65536
alix soft nofile 65536
alix hard nofile 65536
root soft nofile 65536
root hard nofile 65536

And added session required pam_limits.so to both:

  • /etc/pam.d/common-session
  • /etc/pam.d/common-session-noninteractive

And fs.file-max = 65536 to /etc/sysctl.d/60-file-max.conf.

Still, after restarting and running ulimit -n on my session, I only get 4096 (was 1024 before).

What am I missing?

system resource-limiting 18.04 ulimit
Martin Hope
Alix Axel
Asked: 2013-04-15 09:58:51 +0800 CST
  • 12

Is there any way to distinguish between Ubuntu Server and Ubuntu Desktop?

I have a Bash script (shameless plug) that I use to set up lightweight web servers, and I've noticed that when I run this script on my own computer, my Ubuntu (Desktop) install gets all messed up - I'm pretty sure the culprit are the following lines of code:

echo -e "\e[1;32mDave, I'm removing the bloatware.\e[0m"

for halBox_package in apache2 bind9 nscd php portmap rsyslog samba sendmail; do
    if [[ -f /etc/init.d/$halBox_package ]]; then
        ( service $halBox_package stop ) > /dev/null
    fi

    ( apt-get -qq -y remove --purge "$halBox_package*" ) > /dev/null 2>&1
done

What I would like to do, is to detect whether the script is being ran in a Server flavour or not, so I can decide whether to purge those packages or not. If it's not possible to tell the flavors apart, can you tell me which package is necessary for Ubuntu Desktop to work properly?

server
Martin Hope
Alix Axel
Asked: 2013-01-28 03:54:32 +0800 CST
  • 3

Say I have the following bash script:

#!/bin/bash

echo $( whoami )

This is what it outputs with and without sudo:

alix@netbook:~$ ./test.sh 
alix
alix@netbook:~$ sudo ./test.sh 
root

The script executes several commands that require superuser priviledges, but I also want to add the original executing user to a group. Is there any command that returns alix if I run sudo ./test.sh?

command-line
Martin Hope
Alix Axel
Asked: 2011-05-11 13:08:00 +0800 CST
  • 0

Possible Duplicate:
How do I use use the Classic GNOME Desktop?

I've recently upgraded my netbook to Ubuntu 11.04 and the new GUI interface looks somewhat nice (I specially enjoy the workspace switcher and the new applications finder) but I'm missing some widgets I had on my (now gone) taskbar, widgets like limiting the CPU usage or load monitor that I have no idea how to get back.

So, how can I use those widgets in this new interface (Unity, I think)? If that isn't possible how can I revert to the old interface without downgrading the operating system?

Thanks in advance!

11.04