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1500 questions
107
votes
12 answers

How to remove the Mail icon indicator applet?

I'm wondering how it's possible to remove the little mail indicator applet in the global menu. I've uninstalled all the programs that use it, like Thunderbird, Empathy, and Gwibber, since I don't use any of them, but the icon is still there. Any…
Icedrake
  • 3,695
107
votes
6 answers

Unable to mount NTFS external hard drive

I am having trouble mounting my external hard drive, every time I try and do so I get the following message: "Error mounting /dev/sdb1 at /media/fuzzy27/My Book: Command-line `mount -t "ntfs" -o…
user307687
  • 1,071
107
votes
5 answers

ntpdate: no server suitable for synchronization found

My clock is off, so I would like to synchronize it using ntpdate. I tried several different NTP servers, but for some reason I always get the following error message: $ sudo ntpdate ntp.ubuntu.com 4 Mar 12:27:35 ntpdate[1258]: no server suitable for…
Malte Skoruppa
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107
votes
12 answers

List all MAC addresses and their associated IP addresses in my local network (LAN)

How can I list all MAC addresses and their associated IP addresses of the machines connected to my local network (LAN)?
Maythux
  • 84,289
107
votes
5 answers

When installing I'm given the option of encrypting my home folder -- what does this do?

Does encrypting my home folder make my computer more secure? Do I have to enter my password more if my home folder is encrypted? What else should I know about encrypting my home folder?
David Siegel
  • 8,932
107
votes
13 answers

Some fast way to save and restore tabs of Terminal?

I have a Terminal window with a dozen named tabs open. I would like to save the current configuration and have it restored with names and directories. Is there a way to do this?
false
  • 1,852
107
votes
8 answers

How do I install Python 3.3?

I have downloaded Python 3.3 from the official site but no idea how to install it. I'm using Ubuntu 12.04
gonewild
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107
votes
17 answers

Beep in shell script not working?

I'd like to use a beep sound in a shell script. Unfortunately none of the methods I found via Google work for me. I tried echo -e '\a' echo -ne '\007' and the command beep after I installed it via apt. What could be the reason?
NES
  • 33,195
107
votes
9 answers

How to search for strings inside files in a folder?

Is there any utility to make searches for a string inside ASCII files to avoid command line searches? How to make a command line search, for example for the string "test" inside all files in the directory /var/x/?
Nuno
  • 1,187
107
votes
8 answers

How to use the Adobe Source Code Pro font?

Adobe released an open source font family called "Source Code Pro" (download here, Slashdot article here). How do I install it?
January
  • 35,952
107
votes
17 answers

How to configure extra buttons in Logitech Mouse

Can anyone tell me how to configure all the buttons on a Logitech MX 620 mouse under Ubuntu 12.04? Specifically, I like to make one of them just the Ctrl key (for control clicking webpages) and another one Ctrl+W to close tabs. I also normally make…
Rick
  • 1,481
107
votes
5 answers

How do I boot into single-user mode from GRUB?

After changing a few lines in xorg.conf, I can no longer boot Ubuntu (I assume it breaks when trying to load up X), so I need a way to boot into a single-user mode. However, there seems to be zero guides on the Internet how to do it, because they…
Aleksei Averchenko
  • 1,273
107
votes
3 answers

What is the NVIDIA Server Driver?

In the Software & Updates app in Ubuntu 20.04, in the Additional Drivers tab, there is an NVIDIA Server Driver option that I don't remember seeing in previous Ubuntu releases. The package name is nvidia-driver-440-server. What are the differences…
acl
  • 1,171
107
votes
7 answers

How can I install on a non-PAE CPU? (error "Kernel requires features not present on the CPU: PAE")

After burning Ubuntu 12.04 to a CD, I tried booting and got the message: This kernel requires the following features not present on the CPU: pae Unable to boot - please use a kernel appropriate for your CPU. What does this mean?
oshirowanen
  • 3,977
107
votes
19 answers

apt-get update failed because certificate verification failed because handshake failed on nodesource

Running sudo apt-get update on my AWS EC2 Ubuntu 18.04.01 LTS instance fails: Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown when trying to access the deb.nodesource.com/node_10.x bionic…
Joe
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