Add this to
~/.bashrc and be happy =):
# By saying PROXY I mean it is a host located in internal network.
# You can access any other internal hosts from it via SSH.
# Export some variables
export PROXY_KEY_PATH="~/.ssh/proxy/id_rsa" # path to locally stored private key from PROXY-server
export PROXY_USER="user" # user name to get access to PROXY via SSH
export PROXY_HOST="internal.host.foobar.com" # FQDN or IP of a proxy
export PROXY_AUTH="$PROXY_USER@$PROXY_HOST" # literally it is a string "firstname.lastname@example.org"
# Connect to PROXY via SSH
alias proxy="ssh $PROXY_AUTH"
# Connect to PROXY via SSH and attach to screen (P.S. don't do it inside a locally launched screen :))
alias proxy_screen="ssh -t $PROXY_AUTH screen -x"
# Forward some service's port which you can access only from PROXY to localhost:1234
# 1234 - local port with service
# ServiceHost - IP-address of a host with service
# ServicePort - Port of a service at ServiceHost
alias tunnel_service='ssh -L 1234:ServiceHost:ServicePort $PROXY_AUTH'
# Forward MySQL-connection which you can access only from some host inside enterprise network (no a PROXY-host) to localhost
# MySQLHost - IP-address of MySQL-server
# WebHost - IP-address of a host that can connect to MySQLHost
# WebUser - User name to access from PROXY to WebHost via SSH
alias tunnel_mysql='ssh -A -i $PROXY_KEY_PATH -L 3306:MySQLHost:3306 -o ProxyCommand="ssh $PROXY_AUTH nc WebHost 22" WebUser@WebHost'
# Run some command at remote server and disconnect
# TargetHost -IP-address of a host where you wanna execute your command
# TargetUser - User name to access from PROXY to TargetHost via SSH
# 'cd /srv/some/directory/; ls -al | wc -l)' - the command you are willing to run
alias remote_directory_count="ssh -i $PROXY_KEY_PATH -t -o ProxyCommand='ssh $PROXY_AUTH nc TargetHost 22' TargetUser@TargetHost 'cd /srv/some/directory/; ls -al | wc -l)'"
ssh-keygen -f ~/.ssh/id_rsa -o -c -C "here goes your comment"
Command options explained:
-f: private key file
-o: convert the private key from PEM to the new OpenSSH format
-c: change the comment in the private and public key files
-C: comment text
In kde plasma 5.8+ the super/win key is also used to trigger the launcher, when pressed and released without combining it with another key. To disable the feature, put
To fix this issue append to your ~/.config/fontconfig/fonts.conf file the following:
<match target="font" >
<edit name="embeddedbitmap" mode="assign">
After modifying font.conf logout and login back to your Ubuntu.
To update your kernel version run the following commands in your terminal:
sudo add-apt-repository ppa:kernel-ppa/ppa
sudo apt-get update
apt-cache showpkg linux-headers
You will see the list of available kernels. Choose the kernel version you want and run:
sudo apt-get install linux-headers-3.8.0-26 linux-headers-3.8.0-26-generic linux-image-3.8.0-26-generic --fix-missing
Everytime you establish ssh-connection or use git via ssh you will be asked for a password. I suggest to you a simple solution of that issue. Before connecting to remote machine run the following commands in your terminal:
Open your terminal and run:
Using dual or multiple monitors in Linux is relatively straightforward as most monitors are automatically detected on the major distributions. Continue reading
Install and configure wine
sudo add-apt-repository ppa:ubuntu-wine/ppa
sudo apt-get update
sudo apt-get install wine winetricks
winetricks settings fontsmooth=rgb
winetricks ie8 gdiplus
Run winecfg and check that all needed libraries presist:
Install and run 1C:Enterprise
wine ~/.wine/drive_c/Program Files (x86)/1cv82/common/1cestart.exe
Run in terminal:
To get list of all kernels installed on your system run
dpkg -l linux-image-\* | grep ^ii
Find out the oldest kernel by its version and remove it
sudo apt-get purge linux-image-x.x.x.x