# Sidux/System and packages management, applications intallation
## Packages management
### In Terminal

    You have to softwares for packages management : "dpkg" and "apt-get".
    1. If you want to install new software/package from repositories just type in Terminal as root:
    2. If you want to install a package "deb" downloaded from other site:
       a. If a package needs additional dependences and installation has been stoped, then:
       b. If a package has been not configurated correctly, fix it:
    3. Removing packages:
    4. Removing package with it's dependences:
    5. Removing old versions of installation packages:
    6. If you don't know a package name look for it using:
    7. If you want to install "bin" package, make:
    If the package doesn't have execute rights, change it:

### Packages installation with Synaptic

    sidux developers suggest to install packages using "apt-get" command only.
    But you can do it with "apt-get" GUI called Synaptic, if you prefer:
    Run Synaptic from: Menu-> System-> Synaptic Package Manager-> type your root password.
    1. First icon "Reload" will refresh packages list.
    2. "Search" icon will help you to find exec software.
    3. When you receive the package list mark your one clicking on "Mark for installation" and "Apply".
    4. Confirm it and wait for completion, then close Synaptic down.

### System upgrading

    1. sidux developers suggest to make system upgrade using only "apt-get" command:
    2. If you want to keep older version of a package (upgrading will not be made), just block it:
       a. To check blocked packages agains upgrading:
       b. If you want unblock blocked package for upgrading it:

### Other repositories and public key

    If you want to install a package from other server, just add an address to repositories list
    using any text editor as a root to file:
    2. Then refresh package list with command:
    2. If you recive a missing public key message so install it:
       a. Software makers have public key sometimes to download so take it.
       b. If not add a key using command:

## System management
### Removing old system kernel

    sidux makers upgrade system kernel often but they have given a small script to help removing old one easy.
    1. Menu-> System-> kernel-remover
    2. Mark a kernel version with lower number-> then OK.
    3. Should I remove this kernel? -> OK.
    The software doesn't show present version of kernel for removing just old ones but I suggest to not
    removing all of theme, keep one old just in a case.

### System administration

    If you want to make any system changes just run: Menu-> Settings-> Xfce4 Settings Manager.
    I'll show you the most important only.
    1. Preferred Applications.
       a. If you want to change any application for your one choose it from the list or "Other".
       b. If you've selected "Other" choose an execute script from "/usr/bin" or your own folder.
    2. Removable Drives and Media.
       a. Storage tab: I suggest to not mark "Auto-run" and "Auto-open" programs and files on new drives.
       b. Multimedia tab: Play audio or video CD's - choose any media player or do not mark it,
          so you will run CD's files manually.
       c. Cameras tab: Import digital photos when connected - use one of theme: gThumb, F-spot or DigiKam.
    3. File Manager: Bahavior tab - Single or Double click to activate items to choose.
    4. Workspaces: choose one or more.
    5. Desktop: choose a wallpaper, icon size or media mounting on Desktop.
    6. Display: choose a screen if you have more than one, its resolution and refresh rate.
    7. Window Manager.
       a. Style tab: choose a theme.
       b. Keyboard tab: shortcut to manage.
    8. Session and Startup.
       a. Splash tab: choose any.
       b. Application Autostart: you may add any application to start it when system starts.
    9. Panel: customize the panel settings - size, position, autohide or add new one.
    10. Appearance: change windows style, icons theme or fonts.

### Working on files
#### Midnight Commander

    Sometimes you have to work on files and folders (often as a root).
    One of the best way is using terminal's Midnight Commander:
       a. To copy a file/folder mark it in one window and click F5 key, it do that to a folder in second window.
       b. To move a file/folder use F6 key.
       c. If you want to delete a file/folder use F8.
       d. F7 key creates new folder.
       e. If you want to make a view for a file use F3 key, to edit it F4.

#### In Terminal

    2. Another way to make all the works is typing a command in Terminal:
       a. To create a file:
       b. To create folder:
       c. To copy a file:
       d. To copy a folder:
       e. To remove a file:
       f. To remove folder:
       g. If a folder is not empty:
       h. To check files in a folder:
       i. To go to a folder one level lower:
       j. To go to a folder one level upper:
       k. To go to other folder:

#### Thunar

    Another way to do that with graphic application is using Thunar File Manager with mouse helps menu.

### GRUB boot loader

    GRUB (GRand Unified Bootloader) is a boot loader package installed in main drive sector.
    It can run many operating systems.
    There is Grub version 2 provided with sidux.
    1. If you can't find all installed systems on your hard drive on boot loader list, type in Terminal as root:
    Changes will be effective after reboot system.
    2. If you want to change system startup delay (it's normally 5 sec.) just edit the file as root:
    and change the line: GRUB_TIMEOUT=5 for any you'd like and save the file.
    More about GRUB2 read on the project page: http://www.gnu.org/software/grub/grub-2.en.html
    And on Wikipedia: http://en.wikipedia.org/wiki/GNU_GRUB

### Time zone

    If your system's clock doesn't display exect time, just reconfigure it:
    Terminal as root:
    Choose a continent first and a town after.

### Default system language

    To change it just type in Terminal as root:
    Depending of "locales" package version mark your language or choose from a list (I suggest UTF8).

## Personalization
### Adding new entry to Menu

    Most applications installers have scripts adding entry to Menu but sometimes you have to do it yourself.
    Terminal as a root:
    And type it in the new file:
    Save the file and close Mousepad down. There is en example for "Touchepad" application below:
    The icon file patch can be different.

### Desktop theme changing

    1. Wallpaper: download new one from: gnome-look.org for example or use any picture.
       a. Right click on your picture and choose: "Set as wallpaper"
    2. Icons: download a set of icons from the same website.
       a. Extract it.
       b. Open Terminal as root and run "mc" then move extracted new icon folder to: "/usr/share/icons".
       c. Choose new icon theme from: Menu-> Settings-> Appearance-> Icons tab-> choose the new one or any.
       d. Icon size changing: Menu-> Settings-> Desktop-> Icons tab-> Icon size.
    3. Style: Menu-> Settings-> Appearance-> Style tab-> choose any.
    4. Login window: download new one from the same website from DGM Themes department.
       a. Open: Menu-> Settings-> Login Window-> Local tab.
       b. Click on "Add" and choose downloaded package.
       c. Mark it and close the window down, the new login style will be working after next log in.

### Panel castomize

    Panel applets make faster access to many system and personal functions. I'll show you a few only.
    1. Action Buttons lets you block desktop or shut system down in quick way.
    2. DateTime adds a clock, date and calendar.
    3. Weather Update brings temperature, atmosphere pressure, humidity, wind speed, etc.
    4. Mail Watcher checks all your e-mail boxes on "pop3, imap, gmail" servers.
    5. Network Monitor shows incoming and outgoing speed trafic.
    6. Mixer Plugin lets you control the sound level for speakers and microphones.
    7. Xfce4 Stopper just let you set a timer up.

## Users and groups
### User account changes

    1. To add new user type in Terminal as root:
    2. If you want to change your password type in Terminal (not as root):
    3. Removing an user:
    4. Removing an user with its home folder and all files:

### Root account changes

    1. To change root password make (if you know it):
    2. To change root password (if you forgot or don't know it):
       a. Run computer from sidux LiveCD or any Linux Live distribution.
       b. Open Terminal as root:
         * check root "/" partition name (it's "/dev/sda6" on my computer):
         * create new folder "sid_temp" for example in "media" folder:
         * mount root "/" partition of hard drive file system in Live system:
         * check has been it mounted correctly:
         * and change unknown root password for new one:

### Operations on groups

    1. To create a new group:
    2. To remove a group:
    3. To add an user to a group:

## Security
### Basic informations

    1. The main system security thing is the system itself becouse the system is locked with root password;
       demaging it is very difficult.
    2. Linux file system is virus-proof for most known malwares.
    3. Regular updating remove mistakes and provides new applications functions.

### Firewall

    The firewall keeps out incoming access to your computer from outside.
    So the first thing after system installation is the firewall activation.
    You can do that in a few ways, just have a look: Sidux/Post-installation work/Firewall

### Antivirus application

    Sincerely - you don't need it at all but you can use it for outgoing e-mails scanning
    - most our friends use different operating system; and for external drives scanning befor
    connecting theme to the different OS.
    If you'd like try an antivirus application available from Debian's repositories ClamAV with KlamAV GUI:
    More about ClamAV here: clamav.net and on Wikipedia: Clam AntiVirus
    Try others antivirus applications for Linux:
* avast!
* f-prot
* Panda
* AVG
* Dr.Web

### Rootkits

    Rootkit is a dangerous tool hidding processes with can take control of your computer over.
    A tool for looking for and removing rootkits from linux system is chkrootkit.
    Install it in Terminal:
    To scan your operating system run the command:
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