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2
votes
1answer
23 views

Ubuntu + PrtSc + AltGr = CRASH

On Ubuntu 15.10 and 15.04 on Lenovo t440p when I'm writing a code in Netbeans and accidently click button AltGr and PrtSc on same time it's crashed and reboot system. This not take action with fresh ...
-1
votes
0answers
15 views

Ssh disable password login

I wanted to ask since recently i have asked if ssh was secure enough to have port 22 open. I am working on getting the key ready but i have one thing. I have set passwordauthentication to no, and i ...
5
votes
1answer
47 views

How is the authenticity of Ubuntu updates verified?

I couldn't find much info on the security of Ubuntu (and Linux in general) update verification/security. The connection appears to be plain ftp. but the packages are signed using a private key and ...
5
votes
3answers
23k views

SSH public key authentication doesn't work

I'm having trouble setting up public key authentication for an SSH server on Ubuntu Server 12.04 (A) for authentication from an Ubuntu Server 13.04 (B). What I'm doing now (I'm trying to follow the ...
0
votes
0answers
15 views

Hotkey problem - some keys not working

Ok, so the problem WAS : I got a hp laptop with ubuntu (12.04) and out of the box everything worked fine...until one update that somehow interupted the wi-fi on/off togle which is located on the f12 ...
0
votes
0answers
44 views

Some keys not working properly on Ubuntu 14.04 LTS

I'm new here. I could not solve my problem with the threads I already found in this forum. The problem is as follows: Since recently, when I try to type in "n" or "b" (German keyboard: n is next to b) ...
3
votes
1answer
61 views

Why did Ubuntu source repository key signature fail with security warning?

Downloading Ubuntu source code gave a security warning: # apt-get source gedit Reading package lists... Done Building dependency tree Reading state information... Done NOTICE: 'gedit' ...
0
votes
1answer
19 views

ubuntu how to assign key to email address [duplicate]

I would like to assign a key combination to enter my email address I get tired of having to type it out.
2
votes
2answers
280 views

Happlink Plug-up FIDO U2F Security Key. Why it doesnt work immediately in Ubuntu

Ubuntu 12.04LTS Happlink Plug-up FIDO U2F Security Key. Why it doesn't work immediately in Ubuntu. http://sk.happlink.com/plugup/en/ What shall I do with it?
66
votes
5answers
133k views

How to disable strict host key checking in ssh?

I would like to disable strict host key checking in ssh for ubuntu 11.04. How to do it?
1
vote
1answer
41 views

Cannot delete expired key

While trying to manually get update I got a gpg error: W: GPG error: http://apt.freegeek.org precise Release: The following signatures were invalid: KEYEXPIRED 1422819173 W: Duplicate sources.list ...
0
votes
1answer
28 views

Unity launcher: combine click and modifier key (Shift, Alt, Ctrl, …)

In Unity launcher (icons on left side), is it possible to configure a .desktop file to, for instance, run something else if Control is pressed. For instance, Gimp below The file gimp.desktop in ...
1
vote
3answers
4k views

How to use rsync via ssh with rsa key passphrases?

How can I use rsync with passphrases? All googled "solutions" i found use passphrase-less keys which seems no real option. i am runnning 2 ubuntu servers 12.04.2 LTS.
1
vote
1answer
113 views

GPG Error Missing Signature [duplicate]

When I do the command below: sudo apt-get upgrade At the bottom I get an error saying W: GPG error: http://download.opensuse.org Release: The following signatures couldn't be verified because the ...
0
votes
1answer
30 views

Clients and a server connection by SSH with authentication key usage

What is the way to share a server's SSH key to clients to allow them connect by SSH to that server? In the every manual about SSH authentication a connection between clients and server through ...
1
vote
0answers
40 views

What is the use of modifier keys in Xmodmap?

I was following this question to do some remapping. In the question, there is: Additional information: The sequence of these mappings is Key, Shift+Key, mode_switch+Key, mode_switch+Shift+Key, ...
0
votes
0answers
53 views

Ubuntu Trusty Tahr Ctrl, Alt, Shift and Super (Windows) keys sticks

I have just installed a freshly downloaded .iso of Ubuntu Trusty Tahr. After installing I'm having some issues with my keyboard. Whenever I press any of the Ctrl, Alt, Shift or Super Windows key and ...
0
votes
1answer
102 views

Ways to identify a remote SSH servers Key Length

I am new to this SSH and Bash, I am trying to know a remote SSH servers configuration for debugging purposes for e.g. to know what ciphers, MAC's, Algorithms, and length of the key that is been used ...
0
votes
0answers
124 views

How to cleanly swap alt and ctrl keys in xubuntu?

I have found many answers to this question, but none worked for me. I'm using xubuntu 15.04. I'm trying to swap the ctrl and alt keys. I have tried that : How to swap Command and Control keys with ...
1
vote
1answer
294 views

Know my windows 8 product key

I have had several problems trying to install Ubuntu alongside my windows 8.1 so as it was booting in UEFI mode, as Im not that into pc games, I decided to format the hard drive and just install ...
4
votes
2answers
846 views

typing arrows in plain text?

In plain text (as opened in emacs, gedit, ...), how can I type up and down arrows? I type the up arrow in two lines, as "^" above "|", where aligning them is very inconvenient. I don't know how to ...
0
votes
0answers
73 views

How to Reassign/Replace a keyboard key with other one

My laptop's spacebar key is broken. You all know it's a very important key. So please tell me how do I reassign spacebar to any other key, e.g. capslock Please help, I am using Ubuntu 12.04 LTS i386 ...
0
votes
0answers
39 views

How can i modify AltGr with xmodmap?

Hi i have a little problem with the order of two keys in my keyboard, instead of being [AltGr] +[<>] like in most of the keyboards in my country, my keyboard comes with the keys this way: [<>] + ...
1
vote
2answers
73 views

Trying to import a friend's public OpenPGP key - but nothing happening and I cannot see the key

Strange issue: A friend of mine sent me his public OpenPGP key. I tried the following: Method 1 Pasted his OpenPGP key block into a .txt file Launched seahorse and clicked on File > Import ...
1
vote
2answers
115 views

How to share the public OpenPGP key using GnuPG?

I used GnuPG to generate a key. But looking at the GUI, I cannot tell where my public key is stored. I would like to share it with friends. I clicked on export, this exported a name.asc file, but ...
0
votes
1answer
422 views

OpenSSH .ppk file not working - host does not exist?

I have two machines: A server running Lubuntu (ragendbin) A PC running Windows 7 (farore) I have been using SSH to access the Lubuntu server from the Windows PC. However, until now I have been ...
0
votes
0answers
107 views

Change printscreen key to options key

Lenovo l440 has a pretty stupid key design, where options key(emulates a right click) is gone and we have a printscreen key in its place. Is there a way to get options key function on prtsc key ?
1
vote
1answer
119 views

Is there a GUI Keyboard Remapper App?

Running Ubuntu 15.02. Tried finding the keyboard layout tab and now I'm convinced it's gone missing with this latest release. Thus, I'm looking for a simple app that does the same thing... I'm a Mac ...
0
votes
0answers
53 views

How to set some key turbo pressing instead of usual middle mouse button behaviour?

There is a browser game. Sometimes I need to press a key on a keyboard very fast. How can I simulate turbo key pressing when middle mouse button is pushed and then recover it's behaviour after ...
0
votes
0answers
91 views

Issues entering letter “O”. Ubuntu 14.04, Lenovo ThinkPad S1 Yoga

I have problems entering the letter "o". I am running Ubuntu 14.04 in a Lenovo ThinkPad S1 Yoga (dual boot with pre-installed Windows 8) Sometimes right from the beginning of the session I have ...
0
votes
0answers
39 views

Seahorse: Does “file export” always just exports the public key?

Or in other words: is it always secure to do "File -> Export" in Seahorse and mail this file to a person you want to share data (safely via encryption) with? So Seahorse never includes any crucial / ...
1
vote
0answers
132 views

Can't SSH with Key Authentication

I created an RSA keypair using ssh-keygen on Ubuntu Desktop 14.04.2 LTS ssh-keygen -b 2048 -t rsa -f ~/.ssh/<keyname> -o Than I added the public key to the remote Ubuntu Server 14.04.2 LTS ...
4
votes
2answers
5k views

binding back/forward to mouse buttons

I have a basic logitech mouse with 5 buttons: left, right, wheel left, wheel, wheel right. I used to use wheel left and right for going back and forward in my browser or navigator. Now this doesn't ...
0
votes
0answers
66 views

Keyboard keys not working all of a sudden?

OK,I'm running Ubuntu in the 'Try without install' mode.The keyboard was responding alright for the few minutes.Then all of a sudden one by one the keys started losing functionality. Right now I'm ...
1
vote
0answers
33 views

Complete walk through on creating a new user +Key if nessecary

I am very new to all of this. I use PuTTY to access my WHM Minecraft server without any issue as root. I want to make a new account, I have googled for 2 days and nothing is working. ...
0
votes
2answers
4k views

Super Key doesn't work on Kubuntu 12.04

I have Kubuntu 12.04 installed on HP 430 Notebook PC. My problem is that when I press Super Key, nothing happened. Some of my Fn keys did not work either. I have changed the Keyboard Model in System ...
0
votes
0answers
25 views

Apt-Get missing keys and won't let me add new ones [duplicate]

APT gives me this when I run sudo apt-get update: W: GPG error: http://repository.spotify.com stable InRelease: The following signatures couldn't be verified because the public key is not ...
0
votes
0answers
141 views

Gaming macros on ubuntu

I've been able to run League of Legends on wine, and now i'm trying to associate macros to my mouse buttons. I've used xbindkeys+xte to simulate keystrokes. For example: # Press mouse button 1, will ...
1
vote
1answer
192 views

Double (different) key press detected

I have Windows 8 and Ubuntu 14.10 as dual boot. I have PS2 keyboard. Sometimes randomly (can't reproduce yet) Ubuntu detects multiple different key presses when I press specific buttons. Some buttons ...
0
votes
1answer
368 views

problem with using git using private key

sorry if this question seems so easy but I'm new with UBUNTU and I still couldn't figure that out. I've been given a private key with password to clone and install a software from a repository using ...
1
vote
0answers
198 views

The following signatures couldn't be verified because the public key is not available: NO_PUBKEY

When I look for my error key number 0429ACCAF7AA50B3, it is not in the database, thus I cannot receive or generate anything even none of this did not work: ...
0
votes
0answers
45 views

Generate decryption key for manual recovery

I'm new to Ubuntu. I'm just learning Linux now. I did try to find the answer first before posting, but could not. Got lots of stuff on encryption, but not the answer I needed. I installed Ubuntu ...
0
votes
1answer
94 views

How to change a specific third level character? [Ubuntu 14.10]

For example, pressing third level chooser (not compose key, as I posted earlier) + v = @. However, I want third level chooser + v to print #. Is there a way to accomplish this?
6
votes
1answer
416 views

Shell scripting bash: How to detect Alt+N keystroke?

I want to write a script that always listens in the background and execute a particular command when the user hits a specific key combination such as Alt + N. How this can be done?
2
votes
1answer
174 views

How to revoke old OpenPGP keys?

I've been foolish over the years and created a few OpenPGP keys for various reasons (mostly self teaching) and never revoked any of them or changed them etc before re-installs or whatnot. Anyhow I ...
1
vote
1answer
73 views

VirtualBox release key after a few seconds

I am using Ubuntu in VirtualBox and it works pretty fine, but there is a problem that I am having since I started using it. I use Emacs and therefore, I use a lot of combinations/shortcuts/bindings ...
3
votes
1answer
204 views

Ubuntu 13.10 duplicates my key presses

I have upgraded from Ubuntu 13.04 to 13.10 and it now constantly duplicates my key presses when I am in a browser, HUD or libreoffice. So if I type "ubuntu" it types "uubbuunnttuu". When I press ...
2
votes
1answer
1k views

custom hot key for terminal command

I want to hit F1 and have a string with return key to be typed automatically into the terminal I am in. I do not want to do it with bash_profile because I want it to be configured locally in once ...
2
votes
1answer
36 views

What key for Ubuntu option during pre boot (small twist)?

This question is close to others on the site but I still haven't found an answer. I have a Toshiba Satellite with Windows 7. Ubuntu has been installed on it and I have used it before. I haven't ...
0
votes
1answer
174 views

Override key binding

I use Inspiron 1460 which need to press Fn key to enter F4. This thus make my Alt+F4 more difficult because I need to press 3 keys instead two shorter key combination. I want to change the key binding ...