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Linux

Customizing your user environment

symbolic links The Z Shell aliases, including -s types in zsh. variables • PATH prompts Terminal transparency adding things to your X startup
TRINITY TECHNOLOGIES

Final Test

For the final test, I will present a badly beaten Linux machine. It's got numerous problems on it, and they need to be fixed. Here are some problems you will run up against: ***You don't know the root password. (Pay attention to how single user mode works, and how to change users passwords) ***You don't know the MySQL root password, but need to get access to the database. You will need to use Google to research the answer to this one. ***The settings in XFree86 are not right for the current monitor, so it is not starting up. ***The /var partition is full.
TRINITY TECHNOLOGIES

X: Networking Tools

ping - check if a host is online traceroute - see your hops between hosts telnet - diagnostics nmap - seeing what ports are open on a host xinetd - the "internet super server". TCP/IP service manager. lsof - list open ports and files ethereal - Packet Sniffer Extraordinaire.
TRINITY TECHNOLOGIES

System Administration II

Mounting disks Killing processes with kill Where to find software: freshmeat.net Fetching files with wget Compiling software: configure, make, make install Reviewing find and du for finding out where your disk space went to Single user mode
TRINITY TECHNOLOGIES

Automation

cut - cutting out the good parts of your input sort - sorting files uniq - finding the unique lines in a set of input sed - searching and replacing, tail, head find -exec - running a command on a large set of files Writing a shell script Scheduling tasks with cron.
TRINITY TECHNOLOGIES

Windows Integration

Connecting to your Linux machine from Windows using PuTTY and WinSCP. WINE - free Windows API compatibility layer, for running Windows applications in Linux. We will use mIRC as a sample application. Samba basics. Configuring Samba to authenticate using ADS rdesktop - Windows Terminal Server Client. smbclient - an FTP-like client for SMB shares smbmount - Mounting samba shares to a local directory (explain mount) smb4k (unless Konqueror decides to work)
TRINITY TECHNOLOGIES

Apache and MySQL administration

About the Apache webserver. About the MySQL database engine. About the PHP scripting language. Enabling the Apache with PHP and MySQL services Using MySQL Administrator PHPMyAdmin - web based administration and query console for MySQL. Adding a MySQL user in phpmyadmin Installing WordPress - a popular blogging software that uses MySQL. Installing Coppermine - a popular photo gallery software that uses MySQL.
TRINITY TECHNOLOGIES

System Administration

logfiles. Using tail -f to watch /var/log/messages Configuring Kerberos authentication Explaining file permissions, including setuid. How to enable and disable services ntp - Setting up time synchronization Setting DNS settings by editing /etc/resolv.conf Changing XFree86 settings in /etc/XFree86/XFree86.conf
TRINITY TECHNOLOGIES

Basic Administration

Adding users, groups su - the obsoleted way to become the root user. sudo - the modern way to run processes as another user. Changing users passwords with the passwd command. Printing with CUPS. Installing new software with yum (if Fedora) or YaST (if SUSE) Installing new software with rpm • Installing webmin for easy web based systems administration
TRINITY TECHNOLOGIES

The command-line

The command-line (shells, tab completion, cd, ls) file management: cd, df, find, locate nano, the text editor that replaces pico. man pages - the help system ssh - secure text-based connectivity to other machines. Demonstrate X-Forwarding. Handling compressed archives with zip and tar. GNU screen - The ability to resume command-line sessions from anywhere.
TRINITY TECHNOLOGIES

User Software

• GNOME Basics. Changing the desktop background, adding menu items, plugins. Changing the screen resolution Evolution - the default e-mail client in Fedora. Mozilla - Web browser OpenOffice - Productivity tools. Word processor, spreadsheet, presentation software. gaim - Chat application XScreensaver How user preferences are stored in your home directory Updating your system with up2date / yum. How to restart X11: Ctrl-Alt-Backspace
TRINITY TECHNOLOGIES

The following are explained while installing Linux or during the first bootup

History Distributions Devices and Drives in Linux Filesystem Hierarchy Components: Kernel, Distribution, XFree86, Sawfish, Gnome.
TRINITY TECHNOLOGIES

The following are explained while installing Linux or during the first bootup

History Distributions Devices and Drives in Linux Filesystem Hierarchy Components: Kernel, Distribution, XFree86, Sawfish, Gnome.

User Software

• GNOME Basics. Changing the desktop background, adding menu items, plugins. Changing the screen resolution Evolution - the default e-mail client in Fedora. Mozilla - Web browser OpenOffice - Productivity tools. Word processor, spreadsheet, presentation software. gaim - Chat application XScreensaver How user preferences are stored in your home directory Updating your system with up2date / yum. How to restart X11: Ctrl-Alt-Backspace

The command-line

The command-line (shells, tab completion, cd, ls) file management: cd, df, find, locate nano, the text editor that replaces pico. man pages - the help system ssh - secure text-based connectivity to other machines. Demonstrate X-Forwarding. Handling compressed archives with zip and tar. GNU screen - The ability to resume command-line sessions from anywhere.

Basic Administration

Adding users, groups su - the obsoleted way to become the root user. sudo - the modern way to run processes as another user. Changing users passwords with the passwd command. Printing with CUPS. Installing new software with yum (if Fedora) or YaST (if SUSE) Installing new software with rpm • Installing webmin for easy web based systems administration

System Administration

logfiles. Using tail -f to watch /var/log/messages Configuring Kerberos authentication Explaining file permissions, including setuid. How to enable and disable services ntp - Setting up time synchronization Setting DNS settings by editing /etc/resolv.conf Changing XFree86 settings in /etc/XFree86/XFree86.conf

Apache and MySQL administration

About the Apache webserver. About the MySQL database engine. About the PHP scripting language. Enabling the Apache with PHP and MySQL services Using MySQL Administrator PHPMyAdmin - web based administration and query console for MySQL. Adding a MySQL user in phpmyadmin Installing WordPress - a popular blogging software that uses MySQL. Installing Coppermine - a popular photo gallery software that uses MySQL.

Windows Integration

Connecting to your Linux machine from Windows using PuTTY and WinSCP. WINE - free Windows API compatibility layer, for running Windows applications in Linux. We will use mIRC as a sample application. Samba basics. Configuring Samba to authenticate using ADS rdesktop - Windows Terminal Server Client. smbclient - an FTP-like client for SMB shares smbmount - Mounting samba shares to a local directory (explain mount) smb4k (unless Konqueror decides to work)

Automation

cut - cutting out the good parts of your input sort - sorting files uniq - finding the unique lines in a set of input sed - searching and replacing, tail, head find -exec - running a command on a large set of files Writing a shell script Scheduling tasks with cron.

System Administration II

Mounting disks Killing processes with kill Where to find software: freshmeat.net Fetching files with wget Compiling software: configure, make, make install Reviewing find and du for finding out where your disk space went to Single user mode

X: Networking Tools

ping - check if a host is online traceroute - see your hops between hosts telnet - diagnostics nmap - seeing what ports are open on a host xinetd - the "internet super server". TCP/IP service manager. lsof - list open ports and files ethereal - Packet Sniffer Extraordinaire.

Final Test

For the final test, I will present a badly beaten Linux machine. It's got numerous problems on it, and they need to be fixed. Here are some problems you will run up against: ***You don't know the root password. (Pay attention to how single user mode works, and how to change users passwords) ***You don't know the MySQL root password, but need to get access to the database. You will need to use Google to research the answer to this one. ***The settings in XFree86 are not right for the current monitor, so it is not starting up. ***The /var partition is full.

Customizing your user environment

symbolic links The Z Shell aliases, including -s types in zsh. variables • PATH prompts Terminal transparency adding things to your X startup