Few Things to Remember

Add users -- useradd <username> 

Add password to the users -- passwd <username> ... then enter the new password and confirm password when asked for it

Login as diff user -- su -- <username> ... then enter the password when asked for it

List all users -- 

cat /etc/passwd more /etc/passwd less /etc/passwd

List all groups --

cat /etc/group more /etc/group less /etc/group

Adding existing user to existing group

groups -a -G <group-name> <username>

- a -- append... keeps other group membership intact

- G -- secondary group

Deleting an existing user from a group

groups -G <all-groups-except-the-one-to-remove-the-user-from> <username>

Deleting the user account

userdel [options] <username>

Config / Env variables -- /etc/apache2/envvars

1. Add the following plugin to the pom.xml file

<plugin> <artifactId>maven-assembly-plugin</artifactId> <configuration> <archive> <manifest> <mainClass><<fully.qualified.MainClass>></mainClass> </manifest> </archive> <descriptorRefs> <descriptorRef>jar-with-dependencies</descriptorRef> </descriptorRefs> </configuration> </plugin>

2. Create jars with dependency using:

       - creates only 1 JAR file and with dependencies

mvn clean compile assembly:single

       - creates 2 JAR files... one with dependencies and one without dependencies.jar

mvn clean package assembly:single

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Following plugin has "assembly:single" bound to the package phase so no need to run "assembly:single 

<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-assembly-plugin</artifactId> <configuration> <archive> <manifest> <mainClass>com.subodh.App</mainClass> </manifest> </archive> <descriptorRefs> <descriptorRef>jar-with-dependencies</descriptorRef> </descriptorRefs> </configuration> <executions> <execution> <phase>package</phase> <goals> <goal>single</goal> </goals> </execution> </executions> </plugin>

mvn clean package 

1. Download the latest version of Maven from here...

http://maven.apache.org/download.cgi

2. Once you have downloaded the zip file, unzip the file.

3. Add the bin folder to your path

sudo nano /etc/environment

PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$MAVEN_HOME/bin" JAVA_HOME="/usr/lib/jvm/java-8-oracle" CLASSPATH=".:/usr/lib/jvm/java-8-oracle/lib" MAVEN_HOME="/home/<user>/Documents/Softwares/apache-maven-3.1.1"

4. To test the installation, run --> mvn -v

$ mvn -v Apache Maven 3.0.4 Maven home: /usr/share/maven Java version: 1.8.0-ea, vendor: Oracle Corporation Java home: /usr/lib/jvm/java-8-oracle/jre Default locale: en_US, platform encoding: UTF-8 OS name: "linux", version: "3.2.0-57-generic", arch: "amd64", family: "unix"

To install using apt, check this blog - 

Installing

1. First, install all the dependencies

sudo apt-get update sudo apt-get install build-essential -y sudo apt-get install git -y sudo apt-get install python libssl-dev -y

2. Clone the repository in this dir - usr/local/src

cd /usr/local/src sudo git clone git://github.com/joyent/node.git

3. configure script -- this script checks whether all the dependencies are installed or not... furthermore, by default, it ensures that node.js is installed globally for the whole system...

sudo ./configure

4. make command is used to compile and install node.js

sudo make sudo make install

Upgrading

1. Go to cloned repository and pull down the latest source code

cd /usr/local/src/node sudo git checkout master sudo git pull origin master

2. checkout the latest stable version branch. (Use git tag command to check for all the available versions)

sudo git checkout vx.x.x sudo ./configure sudo make sudo make install

1. Download the fortify installer (an .iso file) from HP software center. Follow the instructions provided by HP.

2. Mount the iso file on /media/fortify directory sudo mkdir /media/fortify sudo mount -o loop <fortify installer file>.iso /media/fortify OR To mount the image so that it can be written to, use the following mount command instead: sudo mount -o rw,loop <fortify installer file>.iso /media/fortify 3. Goto Linux directory

4. Run the executable file -> for eg: HP_Fortify_SCA_and_Apps_3.70_linux_x64.run

5. Follow the normal installation process - license file, etc

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The “install oracle-java7-installer” package from “WEBUPD8″ will download the official binaries from Oracle and install the JAVA 7 JDK, JRE and browser plugins on your machine.

1. Add the “WEBUPD8″ PPA

sudo add-apt-repository ppa:webupd8team/java

2. Update your repositories

sudo apt-get update

3. Install JAVA 7 JDK

sudo apt-get install oracle-java7-installer

To uninstall

sudo apt-get remove oracle-java7-installer

Verify Java version

java -version

1. Install openconnect

- sudo apt-get update - sudo apt-get install openconnect - sudo apt-get install network-manager-openconnect - sudo apt-get install network-manager-vpnc

2. Run the following command in the Terminal

sudo openconnect -u <username> --authgroup <authgroup - eg remote.uk.test> --script /etc/vpnc/vpnc-script <remote url - eg connect.test.com/2fa>

2.1 Alternatively,  

- you could save the command in vpn.sh file - make the file executable and save the same in /home/bin - execute the command/file by typing vpn.sh in the Terminal

1. Run the following command in the Terminal:

gksudo gedit /etc/lightdm/lightdm.conf

2. Add the line --> allow-guest=false

Apache2 -------------- 1. Run the following command in the Terminal sudo apt-get install apache2 2. check the installation using following http://localhost 3. Restart / Stop sudo service apache2 restart / stop 4. In case of following error "apache2: Could not determine the server's fully qualified domain name, using 127.0.0.1 for ServerName" do the following 5. Run -> sudo gedit /etc/apache2/conf.d/fqdn 6. Enter - ServerName localhost - in the text file and save the same PHP -------- 1. Run the following command in the Terminal sudo apt-get install php5 libapache2-mod-php5 2. Create test.php file and save the same in /var/www directory

Run -> sudo gedit /var/www/test.php Paste the following code in the test.php <?php phpinfo(); ?> 3. Check PHP installation http://localhost/test.php

P.S. Credit:

https://help.ubuntu.com/community/ApacheMySQLPHP

1. Download the latest MySQL Workbench

2. Download a .deb file for libzip1 as it is not available in the 12.04 repos.     - 32 bit version - https://launchpad.net/ubuntu/+archive/primary/+files/libzip1_0.9.3-1_i386.deb     - 64 bit version - https://launchpad.net/ubuntu/+source/libzip/0.9.3-1/+build/1728114/+files/libzip1_0.9.3-1_amd64.deb

3. Double click on .deb file (for libzip1) to install using software centre

4. Download libmysqlclient16 package as it was removed from the 12.04 repos and install the same (see step 3)     - 32 bit version - http://launchpadlibrarian.net/94563300/libmysqlclient16_5.1.58-1ubuntu5_i386.deb     - 64 bit version - http://launchpadlibrarian.net/94808408/libmysqlclient16_5.1.58-1ubuntu5_amd64.deb

5. Install following packages using Terminal:     - sudo apt-get install libzip1 python-paramiko python-pysqlite2 libctemplate0 libgtkmm-2.4-1c2a libmysqlclient16

6. Then cd to the directory where you have downloaded the mysql workbench deb file and run:     - sudo dpkg -i mysql-workbench-gpl-5.2.38-1ubu1104-i386.deb

7. If it works, then great else run -> sudo apt-get upgrade... This will display all the dependencies and install the same for you. My terminal output below as it did not work the first time for me...

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~$ sudo apt-get upgrade Reading package lists... Done Building dependency tree       Reading state information... Done You might want to run 'apt-get -f install' to correct these. The following packages have unmet dependencies:  mysql-workbench-gpl : Depends: libmysqlclient18 (>= 5.5.13-1) but it is not installed                        Depends: libzip2 (>= 0.10) but it is not installed                        Depends: mysql-client E: Unmet dependencies. Try using -f.

~$ sudo apt-get -f install Reading package lists... Done Building dependency tree       Reading state information... Done Correcting dependencies... Done The following extra packages will be installed:   libdbd-mysql-perl libdbi-perl libmysqlclient18 libnet-daemon-perl libplrpc-perl libzip2 mysql-client   mysql-client-5.5 mysql-client-core-5.5 Suggested packages:   libterm-readkey-perl The following NEW packages will be installed:   libdbd-mysql-perl libdbi-perl libmysqlclient18 libnet-daemon-perl libplrpc-perl libzip2 mysql-client   mysql-client-5.5 mysql-client-core-5.5 0 upgraded, 9 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. Need to get 12.2 MB of archives. After this operation, 44.0 MB of additional disk space will be used. Do you want to continue [Y/n]? Y