• Proper configuration
• Updates
• Reading materials
• Frequent penetration tests
• Monitoring and logging
• Experience with advanced configurations

Zone-h archives

All operating systems have vulnerabilities.  And yes Apple, Microsoft and Linux is only as safe as the end user.

You’ll end up with a file called installed-software. Copy the file to a usb key and copy it to a location on your backtrack machine.
Run: “dpkg –set-selections < installed-software” in the directory where you copied the file installed-software.
Finally the “sudo apt-get dselect-upgrade” commands completes all of this. Be aware that is might take while until the installtion finishes.

If the above doesn’t work, you probably do not have dselect installed.
In that case, run “apt-get install deselect”
The above instructions also work on BackTrack 5

1. First download apache tomcat 7 linux version zipped file, then extract it.

2. now u place the tomcat wherever you like using following command

sudo mv apachetomcat /usr/local/tomcat

3. make *.sh file executable inside /usr/local/tomcat/bin folder

sudo chmod +x *.sh

make sure you are inside the /usr/local/tomcat/bin folder..

4. you can install open jdk and jre or sun jdk and jre.

define JAVA_HOME path in .bashrc file or /etc/environment file

export JAVA_HOME=/usr/lib/jvm/sun-java-jdk…in my case..check yours

5. now write the script to run the tomcat at startup..

by creating a file tomcat in /etc/init.d directory

sudo nano /etc/init.d/tomcat

after that

in tomcat script file..

write script to start stop and restart

case “$1″ in

start)

sh /etc/local/tomcat/bin/startup.sh

;;

stop)

sh /etc/local/tomcat/bin/shutdown.sh

;;

restart)

sh /etc/local/tomcat/bin/shutdown.sh

sh /etc/local/tomcat/bin/startup.sh

;;

esac

exit 0

6. to run this tomcat script at startup, you can run this script in rc.local script which runs at startup or rc0 which is run at rebooting or rc6 which runs at shutdown..

for automatic handling by ubuntu,you can run following command

sudo update-rc.d tomcat defaults

it may show some warning message like LSB ..but you can ignore it because it is just a comment to write in any script in standard pattern.

reboot you computer or just login logout, you are ready to run your apache tomcat 7..

issue:: http://localhost:8080

for manager and host manager application of tomcat 7, you need to write following code..

sudo nano /usr/local/tomcat/conf/tomcat-users.xml

That’s all done..

For check..some commands can be useful..

echo $JAVA_HOME

sudo update-alternatives –config java

sudo update-alternatives –config javac

To free pagecache:
echo 1 > /proc/sys/vm/drop_caches

To free dentries and inodes:
echo 2 > /proc/sys/vm/drop_caches

To free pagecache, dentries and inodes:
echo 3 > /proc/sys/vm/drop_caches

useradd

The useradd command will let you add a new user easily from the command line:

useradd

This command adds the user, but without any extra options your user won’t have a password or a home directory.

You can use the -d option to set the home directory for the user. The -m option will force useradd to create the home directory. We’ll try creating a user account with those options, and then use the passwd command to set the password for the account. You can alternatively set a password using -p on the useradd command, but I prefer to set the password using passwd.

sudo useradd -d /home/testuser -m testuser
sudo passwd testuser

adduser

The adduser command is even easier than the useradd command, because it prompts you for each piece of information. I find it slightly funny that there are two virtually identically named commands that do the same thing, but that’s linux for you. Here’s the syntax:

adduser

chown username /var/www/username

or chown username /var/www

How to make a new folder ?
sudo mkdir /home/namhuy/foler

How to delete a file/folder ?
sudo rm /media/disk/file.extension
sudo rm -rf /media/disk/directory

How to to copy files ?
sudo cp /usr/local/base/..

How to to move files ?
sudo mv /usr/local/base/..

To shutdown / poweroff Ubuntu Linux
Type the command:
sudo halt
OR
sudo shutdown -h now

To reboot Ubuntu Linux
Type the command:
sudo reboot

More information can be found about these two commands by typing following commands (man page):
man reboot
man shutdown

$ wget http://97.74.56.125/free/xephem-3.7.4.tar.gz

$ tar -xvf xephem-3.7.4.tar.gz

Before compiling, we need these packages installed.

$ sudo apt-get install libmotif3 libmotif-dev x11proto-print-dev libxp-dev libxmu-dev

If you don’t install these packages, you’ll get errors during compilation from various files, like aavso.c

Now let’s compile!

$ cd xephem-3.7.4/GUI/xephem

$ make MOTIF=../../libXm/linux86

(NOTE : If you’re using an x86_64 system, use MOTIF=/usr/lib as make the option since the libXm delivered with xephem won’t do any good for you)
The rest is as stated in the INSTALL file.

1. Create root password
2. Install multimedia codecs to play songs and other files
3. Install VLC and Mplayer
4. Install new graphic and sound drivers if available
5. Install new version of Mozilla Firefox
6. Install Gimp (Ubuntu 10.04 LTS)
7. Install Mozilla Thunderbird
8. Install Microsoft Windows Fonts
9. Install Skype
10. Install Xorg-edit
11. Install TeamViewer