Upgrade SVN in Ubuntu 12.04

Follow below steps to Upgrade svn from 1.6 to 1.7

# echo "deb http://opensource.wandisco.com/ubuntu lucid svn17" | sudo tee /etc/apt/sources.list.d/svn.list
# sudo wget -q http://opensource.wandisco.com/wandisco-debian.gpg -O- | sudo apt-key add -
# sudo apt-get update
# sudo apt-get install subversion

That should do the trick!!

Append shell commands to history immediately

 When working with multiple terminals you can always face ssh timeout which will result in loss of command history of the particular session.

To prevent this, Add below line in "/etc/bash.bashrc" file

export PROMPT_COMMAND='history -a'

After logoff login, every time a shell command runs it will be immediately stored in history file.

That should do the trick!!!

Enable Timestamp in bash history for all users

Time Stamp in Linux history can save you from many tight corners.

To enable this, please add below line to "/etc/bash.bashrc" file

HISTTIMEFORMAT="%d-%h-%Y %T "

Logoff login will enable time stamp in history like below example

57  03-Jan-2013 07:15:22 history

That should do the trick!!!

FTP Users with /bin/false shell not able to login to ftp site

It is common to have user shell under "/bin/false" to restrict ftp users from logging through SSH

It also prevents the user from logging in to ftp also. This can be solved by following below steps.

# vi /etc/pam.d/vsftpd

auth   required        pam_shells.so (Comment this line by adding a "#" in the front)

That should do the trick!!!

How to disable Ctrl+Alt+Del restarting in Ubuntu

In Ubuntu, the action taken when Ctrl+Alt+Del pressed is based on the configuration file located in "/etc/event.d/control-alt-delete"
Just disable the line which specifies the restart action.

sudo vi /etc/event.d/control-alt-delete

comment the line

#exec /sbin/shutdown -r now “Control-Alt-Delete pressed”

:wq (save and exit)

that should do the trick!!!