Fix the tilde not working on MacBookAir 6,2 model on Ubuntu 14.04

Just add the following to /etc/rc.local and reboot

echo 0 > /sys/module/hid_apple/parameters/iso_layout

likewise-open (pbis open, power broker) install samba interop

Using the

net -U <username> ads join

will break PowerBrokers connection to AD. For example, you may find that your AD accounts may longer be able to SUDO.

The proper way to link SAMBA to AD via PowerBroker is this:

samba-interop-install --install

Follow the official documentation from

http://download1.beyondtrust.com/Technical-Support/Downloads/files/pbise/Manuals/PBIS_Samba_Integration_Guide_V8.0.pdf

Install Apache Maven 3.2 on Ubuntu

sudo add-apt-repository ppa:natecarlson/maven3
sudo apt-get update
sudo apt-get install -y maven3

echo "export PATH='/usr/share/maven3/bin':$PATH " >> ~/.bashrc
echo "export JAVA_HOME=/usr/lib/jvm/java-7-oracle " >> ~/.bashrc

Install Eclipse Luna on Ubuntu 12.04

Download latest Eclipse from

https://www.eclipse.org/downloads/

tar xvzf eclipse-java-luna-SR1-linux-gtk-x86_64.tar.gz

sudo mv eclipse /opt

sudo vi  /usr/share/applications/eclipse.desktop

[Desktop Entry]
Name=Eclipse 
Type=Application
Exec=/opt/eclipse/eclipse
Terminal=false
Icon=/opt/eclipse/icon.xpm
Comment=Integrated Development Environment
NoDisplay=false
Categories=Development;IDE;
Name[en]=Eclipse Luna

Delete all files matching certain text

# Delete all .desktop files matching pattern pycharm

sudo find / -iname '*.desktop' -exec grep -l pycharm \{\} \; | xargs rm

fixing installation of udf in firebird 2.5

We need to uncomment the line with value 'Restrict UDF'

For some reason it is supposed to be the default but it is not.

Toggle between keyboard layouts in Debian Wheezy LXDE

 echo '@setxkbmap -option grp:alt_shift_toggle "us,es"' | sudo tee -a /etc/xdg/lxsession/LXDE/autostart

force remove a node from proxmox node tree

If you like me did not follow the rule of shuting down a server before removing the node from proxmox cluster, you will get a broken node in your node tree, to force remove it just do the following

# rm -rf /etc/pve/nodes/HOSTNAME

From

http://undefinederror.org/how-to-reset-cluster-configuration-in-proxmox-2/

Solving problems with python-dev package installing hplip 3.14.6 on Ubuntu 12.04.4

I found that the latest update of Ubuntu 12.04.4 does not include precise-updates and this is necesary to install the latest hplip 3.14.6


Just add these lines to /etc/apt/sources.list

deb http://mx.archive.ubuntu.com/ubuntu/ precise-updates main restricted universe multiverse
deb-src http://mx.archive.ubuntu.com/ubuntu/ precise-updates main restricted universe multiverse

Solving problems with ncomputing in Ubuntu 12.04

Using synaptic package manager (sudo apt-get install synaptic) I was able to find the Xorg meta package which is listed as "Xorg" then by going to the "packages" menu at the top of synaptic, drop down, and select force version. I had my luck with the older version " 1:7.6 12ubuntu1 (precise) "
Synaptic will warn you that it is removing and installing a bunch of packages. That's just the downgrade of all the packages comprising the xorg meta. We end up with what's likely what the nc modules are built against, so everything seems to work fine.

Hopefully this helps until nc can update the installer.

from 

https://ncommunity.force.com/forum/?q=906500000000AcOAAU&

Installing a package from Jessie into Wheezy

http://tech.ebuddy.com/2013/10/29/taking-control-over-debian-and-its-package-repositories/

Remove AppArmor from Ubuntu

sudo /etc/init.d/apparmor stop
sudo update-rc.d -f apparmor remove
sudo apt-get -y --purge remove apparmor apparmor-utils libapparmor-perl libapparmor1

Install ruby plugin for netbeans 8.0

First download the plugin from here

http://plugins.netbeans.org/plugin/38549/ruby-and-rails

Then check out the instructions below

http://stackoverflow.com/questions/22573463/ruby-netbeans-plugin-cant-install

Join Lubuntu 14.04 to Active Directory using pbis open (before likewise-open)

#Download latest stable version

http://download1.beyondtrust.com/Technical-Support/Downloads/PowerBroker-Identity-Services-Open-Edition/?Pass=True

# Join via domainjoin-cli

sudo su -l

# Install openssh-server
apt-get install openssh-server

#Join 
domainjoin-cli join --assumeDefaultDomain yes --userDomainPrefix PREFIX prefix.mydomain.com username





#Change default shell to bash
/opt/pbis/bin/config LoginShellTemplate "/bin/bash"
/opt/pbis/bin/config Local_LoginShellTemplate "/bin/bash"

From a terminal:
sudo vi /etc/pam.d/common-session

Find the line that states the following:
session sufficient pam_lsass.so

Replace it with:
session [success=ok default=ignore] pam_lsass.so

fixing xrdp server with lubuntu 12.04

When accessing a lubuntu 12.04 machine via rdp with xfreerdp, I was getting the error 'failed to load session gnome'.

Found the following fix

echo lxsession -s Lubuntu -e LXDE > ~/.xsession

From

http://askubuntu.com/questions/247501/i-get-failed-to-load-session-ubuntu-2d-when-using-xrdp

fixing acroread on ubuntu 12.04 with likewise open

install nscd

http://ubuntuforums.org/showthread.php?t=1567183

change default shell in likewise open

http://michael.requeny.com/2011/02/11/likewise-open-change-default-shell/

Fix error when using wine

When getting error

err:module:attach_process_dlls "krnl386.exe16" failed to initialize,



Put the following in /etc/rc.d/rc.local:

Code:

echo 1 > /proc/sys/abi/ldt16

tweak ssd for performance

http://www.howtogeek.com/62761/how-to-tweak-your-ssd-in-ubuntu-for-better-performance/

create 7zip archive with password and encrypt file list too

7z a -p -t7z -mx0 -mhe=on ~/Documents.7z ~/Documents

Using opendns.com

apt-get install ddclient

#configure with your opendns credentials

#set the opendns.com network label as hostname

#add the line 
ssl=yes

#test with

 sudo ddclient -daemon=0 -debug -verbose -noquiet

Fix problems changing password on ubuntu openldap

Installed openldap from here

https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-a-basic-ldap-server-on-an-ubuntu-12-04-vps


root@srv013:/etc/pam.d# diff common-password common-password.bak
26c26
< password [success=1 user_unknown=ignore default=die] pam_ldap.so  try_first_pass
---
> password [success=1 user_unknown=ignore default=die] pam_ldap.so use_authtok try_first_pass

Install samba4 on ubuntu 12.04

http://www.matrix44.net/cms/notes/gnulinux/samba-4-ad-domain-with-ubuntu-12-04

Configuring logwatch

https://www.digitalocean.com/community/tutorials/how-to-install-and-use-logwatch-log-analyzer-and-reporter-on-a-vps

Configuring sendmail as an email relay through Gmail

http://linuxconfig.org/configuring-gmail-as-sendmail-email-relay

Switching keyboard layout between English and Spanish in Lubuntu 12.02

 echo '@setxkbmap -option grp:alt_shift_toggle "us,es"' | sudo tee -a /etc/xdg/lxsession/Lubuntu/autostart

Install Koha on Ubuntu 12.04 LTS

#Add the following apt repository

echo deb http://debian.koha-community.org/koha squeeze main | sudo tee /etc/apt/sources.list.d/koha.list

# Get The key
wget  http://debian.koha-community.org/koha/gpg.asc
apt-key add gpg.asc

apt-get update

# Install mysql server

apt-get install mysql-server

# Update and install

apt-get update

apt-get install koha-common

Install latest netbeans and oracle java on ubuntu 12.04

sudo su -l

#install oracle java 7

add-apt-repository ppa:webupd8team/java
apt-get update
apt-get install oracle-java7-installer

# install latest netbeans
download from https://netbeans.org/downloads/

Make Ubuntu faster with tmpfs and swappiness

# If you have enough RAM you want to turn off swappiness and turn on tmpfs

 vi /etc/fstab

 # add the line

tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0


 vi /etc/sysctl.conf

 # add the line

 vm.swappiness = 0

Bing the windows key to the lubuntu start menu (lxpanel menu)

vi ~/.config/openbox/lxde-rc.xml

 # add the following entry inside the keyboard xml element lxpanelctl menu

<keybind key="Super_L">
  <action name="Execute">
    <command>lxpanelctl menu</command>
  </action>
</keybind>

Integrating Thunderbird with Google Mail, Calendar, Contacts

First install thunderbird (if not already installed)

sudo apt-get install thunderbird

Then add your existing gmail account

File->Existing Email Account

Now add support for syncing contacts

Tools->Addons

Search for 'google contacts'

Choose 'Google Contacts 0.7.12'

Now add support for calendar:

Search for Lightning, install it

Search for 'Provider for Google Calendar', install it

Follow this tutorial to add your calendar to Thunderbird

https://support.mozilla.org/en-US/kb/using-lightning-google-calendar

No password Kerberos authentication (gssapi) with Samba Active Directory

After you have setup your workstation and server to join your samba4 Active Directory DC, you can setup Kerberos authentication to ssh into the server without needing to retype your password (single sign-in)

Just add these lines to the /etc/ssh/sshd_config on the server

KerberosAuthentication yes
GSSAPIAuthentication yes
GSSAPICleanupCredentials yes
UsePAM no

And add these lines to the /etc/ssh/ssh_config on the client

 GSSAPIAuthentication yes
 GSSAPIDelegateCredentials yes

Credential delegation is the magic that passes your password to the server. Voila!

Installing Active Directory client bridge likewise-open on Debian Wheezy

# Grab the Ubuntu source package
wget http://archive.ubuntu.com/ubuntu/pool/main/l/likewise-open/likewise-open_6.1.0.406.orig.tar.gz

# Extract
tar xvzf likewise-open_6.1.0.406.orig.tar.gz
cd likewise-open_6.1.0.406

# Get dependencies
apt-get install -y build-essential  fakeroot  devscripts  debhelper \
    autoconf automake libtool libncurses5-dev  uuid-dev \
    flex bison libpam0g-dev  libssl-dev  libxml2-dev  libpopt-dev pkg-config

mkdir debug
cd debug
../configure
make package

Samba4 Active Directory Domain Controller on Debian Wheezy

#We will use BIND9_DLZ as backend, we need to add a compile flag to bind9

sudo su -l

apt-get install build-essential fakeroot devscripts

#download bind9 src

apt-get source bind9

cd bind9-9.8.4.dfsg.P1

vi debian/rules

#add the following line after  ./configure
--dl-open=yes \

# get the dependencies
apt-get build-dep bind9

#build
fakeroot debian/rules binary

#install
dpkg -i ../bind9-9.8.4.dfsg.P1_<your arch>.deb

#add backports repo

vi /etc/apt/sources.lst

#add the following line to sources.list
deb http://ftp.us.debian.org/debian wheezy-backports main

#install samba from backports (version 4)
apt-get install -t wheezy-backports samba

#check your samba version is 4
samba -V

# provision domain
/usr/local/samba/bin/samba-tool domain provision --use-rfc2307 --interactive

service samba start
apt-get install chkconfig
chkconfig samba on

#setup bind,kerberos, etc
http://wiki.samba.org/index.php/Dns-backend_bind
http://wiki.samba.org/index.php/Samba_AD_DC_HOWTO

Installing ltsp-server in Linux Mint 13 LTS

sudo su -l
apt-get install ltsp-server-standalone

# You need to make a link from Ubunto to LinuxMint since ltsp does not know about Mint
cd /usr/share/ltsp/plugins/ltsp-build-client/
ln -s Ubuntu LinuxMint
ln -s Debian-functions LinuxMint-functions

# You need to tell explicitly which release you are using, you can change the architecture to something #else
ltsp-build-client --arch=i386 --dist=precise


# Follow the rest of the tutorial here
http://www.thefanclub.co.za/how-to/how-create-ubuntu-1104-x64-ltsp-server-32bit-thin-clients

Script to turn apt-cache search into apt-get install list

apt-cache search <search-term> | cut -f1 -d ' ' | sed 's/$/ \\/g' -

Boostrap a Debian OpenVZ container in ProxMox

# Setup bridged networking
vi /etc/network/interfaces

# Add the following lines
auto eth0
    iface eth0 inet static
        address 192.0.2.7
        netmask 255.255.255.0
        gateway 192.0.2.254

# Setup proxy for apt-get
vi /etc/apt/apt.conf.d/70debconf

# Add the following line

 Acquire::http::Proxy "http://proxy:8080";

How to remove the nag dialog in Proxmox

Blog post on how to remove the annoying Proxmox nag dialog

http://www.jamescoyle.net/how-to/614-remove-the-proxmox-no-subscription-message