Franske CNT-2311 SU11 Labs - Revision history

BenFranske at 16:47, 13 July 2011

2011-07-13T16:47:14Z

← Older revision		Revision as of 16:47, 13 July 2011
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	# Install and configure POP3 and IMAP server software on your Ubuntu server system. Courier is the suggested server software but you are free to use others such as UW-IMAP, Dovecot or Cyrus		# Install and configure POP3 and IMAP server software on your Ubuntu server system. Courier is the suggested server software but you are free to use others such as UW-IMAP, Dovecot or Cyrus
	# Setup a MUA (mail client) on either your host system or one of your desktop Linux installs to connect to your Ubuntu server and send and receive messages from various accounts on the system. Example MUA software includes Mozilla Thunderbird, Evolution, etc.		# Setup a MUA (mail client) on either your host system or one of your desktop Linux installs to connect to your Ubuntu server and send and receive messages from various accounts on the system. Example MUA software includes Mozilla Thunderbird, Evolution, etc.

			= Session 9 =
			== DHCP ==
			# Install the ISC DHCP Server version 3 on your Ubuntu Server system
			# Configure the DHCP server either directly or through Webmin to hand out addresses to clients on the internal network adapter from the same private IP address range as you have set for the adapter. You should also provide the address of your internal network interface as the default gateway and DNS server.
			# Modify the settings of your desktop OS VMs to get an address from the DHCP server. Make sure the clients are getting correct IP addresses and are still able to ping the server.
			== DNS ==
			# Install the BIND DNS server on your Ubuntu Server system to provide caching DNS service to internal clients
			# Verify DNS service is working from a client system and that internal clients can resolve names correctly
			# If you have time, as a challenge, try to create a DNS zone for example.com with at least one A record for example.com and try looking up the IP address from one of your client systems.

BenFranske at 04:49, 12 July 2011

2011-07-12T04:49:25Z

← Older revision		Revision as of 04:49, 12 July 2011
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	## Download and install (following instructions included in the download) the [http://www.wordpress.org WordPress] or [http://www.mybb.com MyBB] software on your webserver. Note that this will involve creating a MySQL database which you can either do though the command line or through the Webmin MySQL module. Do ''NOT'' try to install these via the package management system (apt) which will cause problems!		## Download and install (following instructions included in the download) the [http://www.wordpress.org WordPress] or [http://www.mybb.com MyBB] software on your webserver. Note that this will involve creating a MySQL database which you can either do though the command line or through the Webmin MySQL module. Do ''NOT'' try to install these via the package management system (apt) which will cause problems!
	## Make sure that you can access and use your web application through a browser on your host system accessing http://your-ubuntu-server-ip-address		## Make sure that you can access and use your web application through a browser on your host system accessing http://your-ubuntu-server-ip-address

			= Session 8 =
			== Simple Local Mail Delivery ==
			* NOTE: This lab is extra credit and worth up to 10 points if you submit a lab report
			# Install and configure Postfix for local mail delivery on your Ubuntu server system
			## Make sure the Postfix package is installed on your system
			## Use the dpkg utility to "reconfigure" the postfix program for local mail delivery
			## Try creating some mail ''aliases'' for users, don't forget to run the program to load the new aliases
			## Try sending and receiving mail between user accounts (and to aliases) on your system (either leave off the @ part of the email address entirely or do user@localhost) using the '''mail''' program. You may also want to install '''alpine''' and see how that can be used to send and receive mail from a text only environment as well.
			== POP3, IMAP and SMTP Delivery ==
			* NOTE: This lab is extra credit and worth up to 10 points if you submit a lab report
			# Install and configure POP3 and IMAP server software on your Ubuntu server system. Courier is the suggested server software but you are free to use others such as UW-IMAP, Dovecot or Cyrus
			# Setup a MUA (mail client) on either your host system or one of your desktop Linux installs to connect to your Ubuntu server and send and receive messages from various accounts on the system. Example MUA software includes Mozilla Thunderbird, Evolution, etc.

BenFranske: /* Apache Webserver */

2011-07-11T22:15:58Z

Apache Webserver

← Older revision		Revision as of 22:15, 11 July 2011
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	## Explore the Webmin interface including the Apache and MySQL modules. If the modules are not showing up you may have installed Apache or MySQL after Webmin. If you do this you can click the "Refresh Modules" link to search your system for software which can be configured with Webmin.		## Explore the Webmin interface including the Apache and MySQL modules. If the modules are not showing up you may have installed Apache or MySQL after Webmin. If you do this you can click the "Refresh Modules" link to search your system for software which can be configured with Webmin.
	# '''THIS PART OF THE LAB IS OPTIONAL EXTRA CREDIT:''' Install a WordPress blog or a MyBB bulletin board		# '''THIS PART OF THE LAB IS OPTIONAL EXTRA CREDIT:''' Install a WordPress blog or a MyBB bulletin board
	## Download and install (following instructions included in the download) the [http://www.wordpress.org WordPress] or [http://www.mybb.com MyBB] software on your webserver. Note that this will involve creating a MySQL database which you can either do though the command line or through the Webmin MySQL module.		## Download and install (following instructions included in the download) the [http://www.wordpress.org WordPress] or [http://www.mybb.com MyBB] software on your webserver. Note that this will involve creating a MySQL database which you can either do though the command line or through the Webmin MySQL module. Do ''NOT'' try to install these via the package management system (apt) which will cause problems!
	## Make sure that you can access and use your web application through a browser on your host system accessing http://your-ubuntu-server-ip-address		## Make sure that you can access and use your web application through a browser on your host system accessing http://your-ubuntu-server-ip-address

BenFranske: /* Apache Webserver */

2011-07-11T22:14:44Z

Apache Webserver

← Older revision		Revision as of 22:14, 11 July 2011
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	## Apply the changes to your configuration files and verify the new page is showing up in your web browser.		## Apply the changes to your configuration files and verify the new page is showing up in your web browser.
	## Explore the Webmin interface including the Apache and MySQL modules. If the modules are not showing up you may have installed Apache or MySQL after Webmin. If you do this you can click the "Refresh Modules" link to search your system for software which can be configured with Webmin.		## Explore the Webmin interface including the Apache and MySQL modules. If the modules are not showing up you may have installed Apache or MySQL after Webmin. If you do this you can click the "Refresh Modules" link to search your system for software which can be configured with Webmin.
	# Install a WordPress blog or a MyBB bulletin board		# '''THIS PART OF THE LAB IS OPTIONAL EXTRA CREDIT:''' Install a WordPress blog or a MyBB bulletin board
	## Download and install (following instructions included in the download) the [http://www.wordpress.org WordPress] or [http://www.mybb.com MyBB] software on your webserver. Note that this will involve creating a MySQL database which you can either do though the command line or through the Webmin MySQL module.		## Download and install (following instructions included in the download) the [http://www.wordpress.org WordPress] or [http://www.mybb.com MyBB] software on your webserver. Note that this will involve creating a MySQL database which you can either do though the command line or through the Webmin MySQL module.
	## Make sure that you can access and use your web application through a browser on your host system accessing http://your-ubuntu-server-ip-address		## Make sure that you can access and use your web application through a browser on your host system accessing http://your-ubuntu-server-ip-address

BenFranske at 16:12, 6 July 2011

2011-07-06T16:12:04Z

← Older revision		Revision as of 16:12, 6 July 2011
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	== Shell Scripting ==		== Shell Scripting ==
	# Using your Ubuntu Server system try to work your way through the [http://linuxconfig.org/Bash_scripting_Tutorial LinuxConfig.org BASH Scripting Tutorial]. When doing this make sure you try to understand what you're doing at each stage of the tutorial. Remember that scripts must be marked as executable by your user or group in order to run them.		# Using your Ubuntu Server system try to work your way through the [http://linuxconfig.org/Bash_scripting_Tutorial LinuxConfig.org BASH Scripting Tutorial]. When doing this make sure you try to understand what you're doing at each stage of the tutorial. Remember that scripts must be marked as executable by your user or group in order to run them.

			= Session 7 =
			== Setup ==
			# Start VirtualBox and modify the network settings of your VMs
			## Your Ubuntu Server system should have two network cards. The first bridged to the outside network adapter and the second connected to an internal network.
			## Your Ubuntu Desktop and Fedora systems should both have their network cards attached to the same internal network as the server.
			== Firewall/NAT Configuration ==
			## Start your Ubuntu Server VM
			## Assign a private IP address in the 192.168.x.x range to the NIC on the ''internal'' network, keep the NIC on the campus network receiving it's address from DHCP. You do not need to set a gateway on this internal NIC.
			## Start one of your desktop systems and statically assign an address in the same range to it. On this system you will need to set a gateway, make it the internal address of your server system. Make sure the two systems can communicate with each other.
			# Using either Webmin or the command line configure the system firewall on the server as a masquerading NAT setup to allow clients on the internal network to reach outside sites and secure your system from unwanted outside packets.
			## The main NAT rule must exist in the postrouting chain of the NAT table and should take the action of masquerading all traffic leaving the outside interface of the system.
			## Don't forget to enable IP forwarding (routing) in your kernel settings!
			## Securing your system would also include limiting all inbound traffic from the outside interface to the local system and traffic being routed to other systems to traffic which has been requested (established, related)
			## You should be sure to continue to allow access to your Webmin interface as well!
			## Verify your firewall is working properly by attempting to ping an Internet IP address such as 8.8.8.8 from one of the dekstop systems. If you do a traceroute you should see the traffic hopping through the server on it's way to the Internet.
			== Apache Webserver ==
			# Install the Apache 2 webserver as well as the '''mysql-server php5 php5-mysql''' packages which will be used later on.
			## Check the IP address of your server and then try visiting that IP address from the web browser of your host system to make sure that the Apache software has been installed. Remember you now have a firewall active and will need to allow web traffic through the firewall before you'll be able to reach the site!
			## Try finding (remember how to find files on the system?) and editing the index.html page which is being served by your server and verify that you can see the changes by refreshing the page in the web browser on your host
			## Create a new directory inside your user's home directory to hold website files.
			## Create a new index.html file inside of that directory
			## Find and edit the configuration file for this "default site" on Apache to use that new directory as the root of the website meaning that your new index.html page from your home directory should show up when you visit http://x.x.x.x from the host computer.
			## Apply the changes to your configuration files and verify the new page is showing up in your web browser.
			## Explore the Webmin interface including the Apache and MySQL modules. If the modules are not showing up you may have installed Apache or MySQL after Webmin. If you do this you can click the "Refresh Modules" link to search your system for software which can be configured with Webmin.
			# Install a WordPress blog or a MyBB bulletin board
			## Download and install (following instructions included in the download) the [http://www.wordpress.org WordPress] or [http://www.mybb.com MyBB] software on your webserver. Note that this will involve creating a MySQL database which you can either do though the command line or through the Webmin MySQL module.
			## Make sure that you can access and use your web application through a browser on your host system accessing http://your-ubuntu-server-ip-address

BenFranske at 15:13, 22 June 2011

2011-06-22T15:13:11Z

← Older revision		Revision as of 15:13, 22 June 2011
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	# Setup a new directory on your Ubuntu server which can be used by multiple users and add it as a new Samba share.		# Setup a new directory on your Ubuntu server which can be used by multiple users and add it as a new Samba share.
	# Verify you can access and use the new share with multiple user accounts. Because Windows caches your credentials you may need to ask your neighbor to try logging into your Samba server from their computer as a different user.		# Verify you can access and use the new share with multiple user accounts. Because Windows caches your credentials you may need to ask your neighbor to try logging into your Samba server from their computer as a different user.

			= Session 6 =
			== Text Processing ==
			# On your Ubuntu Server system create a new folder in your home directory. Inside of that folder create a few new text files which can demonstrate the use of text processing commands including '''uniq, sort, nl, cut, join, paste, head, tail,''' and '''grep'''
			== Shell Scripting ==
			# Using your Ubuntu Server system try to work your way through the [http://linuxconfig.org/Bash_scripting_Tutorial LinuxConfig.org BASH Scripting Tutorial]. When doing this make sure you try to understand what you're doing at each stage of the tutorial. Remember that scripts must be marked as executable by your user or group in order to run them.

BenFranske at 17:27, 20 June 2011

2011-06-20T17:27:33Z

← Older revision		Revision as of 17:27, 20 June 2011
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	## Restore your Ubuntu system to DHCP addressing		## Restore your Ubuntu system to DHCP addressing
	## Test system connectivity to the Internet by pinging and tracing the route to google.com		## Test system connectivity to the Internet by pinging and tracing the route to google.com

			= Session 5 =
			== SSH ==
			# Start up and log in to both your Ubuntu Server and Fedora systems
			# Create a new user account on each system which we will use to test remote access
			# Install the SSH server on your Ubuntu server system using '''apt''' tools and try SSHing from your Fedora system to the Ubuntu system. Also try SSHing from your host computer to your Ubuntu server.
			#* NOTE: Although PuTTY is a very popular SSH client for Windows others, such as TerraTerm, exist as well. TerraTerm is pre-installed on CNT lab systems.
			# Try copying files to and from your Ubuntu system securely from your Fedora system using the '''scp''' utility
			# Try to implement key based authentication for SSH between your Fedora and Ubuntu system. Google this or check the course references if you need some extra help.
			== Webmin ==
			# Start and log in to your Ubuntu Server system
			# Start the links web browser, press "G" to GO to a URL, and browse around on the Internet until SafeConnect asks for a username and password. Authenticate with SafeConnect using your campus username and password. If you have problems with SafeConnect working with links try using lynx instead.
			# Use the links web browser to download the webmin Debian package from webmin.com
			# Attempt to install the Webmin package to your system, note the names of the missing dependencies
			#* Note: You will install Webmin on your Ubuntu Server System using the '''dpkg''' program instead of the '''apt''' tools because you have manually downloaded the package
			# Install the dependencies using the '''apt''' tools and then complete the installation of the Webmin program
			# Login to the Webmin interface from the web browser of your host system, remember to use SSL and the correct port number
			# Change the port Webmin is operating on to 1109
			# Explore the Webmin interface and settings
			== Samba ==
			# Start your Ubuntu Server VM
			# Install the Samba Server on your system and re-scan installed programs with Webmin so that Samba can be configured there
			# Set the workgroup for your server to be the CNTLINUX workgroup
			# Set the name of your Samba server to your name (without spaces)
			# Configure sharing of user home directories and allow users to write to them as well as read from them
			# Verify that you can access the home directory of a user on your Ubuntu server system from a Windows computer, either a Windows VM or your host computer. Try creating a new file and moving an existing file as well.
			# Setup a new directory on your Ubuntu server which can be used by multiple users and add it as a new Samba share.
			# Verify you can access and use the new share with multiple user accounts. Because Windows caches your credentials you may need to ask your neighbor to try logging into your Samba server from their computer as a different user.

BenFranske at 20:42, 15 June 2011

2011-06-15T20:42:03Z

← Older revision		Revision as of 20:42, 15 June 2011
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	## Start your Fedora desktop virtual machine and login as a standard user.		## Start your Fedora desktop virtual machine and login as a standard user.
	### Use web browser software on the system to download an RPM package		### Use web browser software on the system to download an RPM package
	###* RPM packages are not centrally managed so there are many websites you can go to and find RPM packages for download. The site to use for this lab is the [http://www.rpmfind.net rpmfind.net] site. Once you get there do a search for '''~~lybx~~''' which is a text-only web browser. You'll want to download the most current version for your distribution and version of Linux. If you're using Fedora Core 15 this will be something like lynx-2.8.7-7.fc15.i686.rpm this file should download to the '''Downloads''' directory inside your home directory.		###* RPM packages are not centrally managed so there are many websites you can go to and find RPM packages for download. The site to use for this lab is the [http://www.rpmfind.net rpmfind.net] site. Once you get there do a search for '''lynx''' which is a text-only web browser. You'll want to download the most current version for your distribution and version of Linux. If you're using Fedora Core 15 this will be something like lynx-2.8.7-7.fc15.i686.rpm this file should download to the '''Downloads''' directory inside your home directory.
	### Open a command line (terminal) window. Because package management must be done by an administrator and you are logged in as a regular system user you will need to switch to the root user. When the '''sudo''' program is installed and configured, something that is automatically setup in Ubuntu, you can just put '''sudo''' in front of any command to run it as the root user. Sudo is not installed and configured on Fedora by default, instead they have you pick a password for the root user during the installation process. You can then switch to the root user account in any shell (in this case our terminal window) using the '''su''' command. You will need to enter the root account password to complete the switch. You will now be in a root shell (indicated by the prompt ending in a '''#''') and any command you enter until you '''exit''' from the shell will be run as root.		### Open a command line (terminal) window. Because package management must be done by an administrator and you are logged in as a regular system user you will need to switch to the root user. When the '''sudo''' program is installed and configured, something that is automatically setup in Ubuntu, you can just put '''sudo''' in front of any command to run it as the root user. Sudo is not installed and configured on Fedora by default, instead they have you pick a password for the root user during the installation process. You can then switch to the root user account in any shell (in this case our terminal window) using the '''su''' command. You will need to enter the root account password to complete the switch. You will now be in a root shell (indicated by the prompt ending in a '''#''') and any command you enter until you '''exit''' from the shell will be run as root.
	### Work through the ''Managing Software Using RPM'' section of your textbook on page 48 all the way through the installation of lynx on page 52.		### Work through the ''Managing Software Using RPM'' section of your textbook on page 48 all the way through the installation of lynx on page 52.

BenFranske at 18:15, 15 June 2011

2011-06-15T18:15:27Z

← Older revision		Revision as of 18:15, 15 June 2011
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	## Edit the /etc/fstab file so that your partitions are automatically mounted when the system reboots. Reboot the system and verifyu the partitions mounted correctly.		## Edit the /etc/fstab file so that your partitions are automatically mounted when the system reboots. Reboot the system and verifyu the partitions mounted correctly.
	# Don't forget to shut down your VM properly!		# Don't forget to shut down your VM properly!

			= Session 4 =
			# Package Management
			## Start your Fedora desktop virtual machine and login as a standard user.
			### Use web browser software on the system to download an RPM package
			###* RPM packages are not centrally managed so there are many websites you can go to and find RPM packages for download. The site to use for this lab is the [http://www.rpmfind.net rpmfind.net] site. Once you get there do a search for '''lybx''' which is a text-only web browser. You'll want to download the most current version for your distribution and version of Linux. If you're using Fedora Core 15 this will be something like lynx-2.8.7-7.fc15.i686.rpm this file should download to the '''Downloads''' directory inside your home directory.
			### Open a command line (terminal) window. Because package management must be done by an administrator and you are logged in as a regular system user you will need to switch to the root user. When the '''sudo''' program is installed and configured, something that is automatically setup in Ubuntu, you can just put '''sudo''' in front of any command to run it as the root user. Sudo is not installed and configured on Fedora by default, instead they have you pick a password for the root user during the installation process. You can then switch to the root user account in any shell (in this case our terminal window) using the '''su''' command. You will need to enter the root account password to complete the switch. You will now be in a root shell (indicated by the prompt ending in a '''#''') and any command you enter until you '''exit''' from the shell will be run as root.
			### Work through the ''Managing Software Using RPM'' section of your textbook on page 48 all the way through the installation of lynx on page 52.
			### Try running the lynx program and browsing to a web site in it then uninstall the lynx program following the instructions on page 54.
			### Work through the ''Other Things You Can Do with RPM'' section from page 55 through ''Yum'' on page 57.
			### Use yum to check which packages installed on your system have updates available using the '''yum check-update''' command
			### Try using the appropriate yum command to update one of those packages to the latest version. You may need to check the manual page for '''yum''' or do some online research about this.
			## Start your Ubuntu Server VM and login
			### Use a text editor to edit your /etc/apt/sources.list file and change the repository from '''us.archive.ubuntu.com''' to '''mirror.rit.edu''' (HINT: You can use the search and replace function of your text editor to do this quickly! Also, I suggest making a backup copy of your original /etc/apt/sources.list file before making any changes)
			### Use the '''apt-get update''' or '''aptitude update''' command to download the latest package lists from the repository
			### Use the '''apt-get install''' or '''aptitude install''' commands to download and install the '''links''' and '''lynx''' text-only web browser programs.
			# Scheduled Jobs
			## In this section you will be creating several different types of scheduled jobs. The suggested job is to run the '''touch''' command to create a new file somewhere on your system. You can then verify at what time the command ran by checking the timestamp on the new file. When running scheduled jobs it is generally best to put the full path in for any files being accessed, created or modified so you know where to find the files.
			## Try creating two different ''system wide'' cronjobs in the '''/etc/crontab''' file. Set the scheduled time so they will run in the next 10 minutes or less. Run the jobs as two different users (do not specify the user for one job) and check to see who owns the files you created.
			## Log in to your system as two different users and use the '''crontab''' ''program'' to create two ''user'' cronjobs.
			## Try using the '''at''' command (check the manual page) to schedule a ''one time'' job five or less minutes in the future.
			## Verify that all your scheduled tasks ran as the correct user at the correct time.
			## Remove all of the user and system cronjobs you created so that they won't run again.
			# Networking with Linux
			## On your Ubuntu Server system
			### Check the current IP address and subnet mask with both the '''ifconfig''' and '''ip''' programs
			### Check the default gateway by checking the system route table with the '''route''' and the '''ip route''' commands.
			### Check the default name servers used by your system by viewing the '''/etc/resolv.conf''' file
			### Determine the IP address of '''google.com''' using all three of the DNS/hostname resolution tools ('''nslookup''', '''dig''' and '''host''') and see how the output differs. If you are on campus you may need to log in to safeconnect using the links or lynx web browser before you will be able to reach off campus locations.
			### Change the IP configuration of your system to have a private static IP address of 192.168.1.XX where XX is the number of your computer (check the label on the front). Don't forget to apply the changes. Use a subnet mask of 255.255.255.0 there is no default gateway needed.
			### Verify the IP address changes took effect
			## Switch back to your Fedora VM (do not turn off the Ubuntu Server VM)
			### Change the IP configuration of your system (using the command line) to have a private static IP address of 192.168.1.1XX where XX is the number of your computer (note the 1 in front of the computer number this time so as to avoid an IP address conflict). Use a subnet mask of 255.255.255.0 there is no default gateway needed.
			### Verify the IP address changes took effect.
			### Test connectivity between the systems using the ping command both with the addresses and the names you have set.
			### Restore your Fedora system to DHCP addressing
			### Shutdown your Fedora system and return to your Ubuntu Server VM
			## Restore your Ubuntu system to DHCP addressing
			## Test system connectivity to the Internet by pinging and tracing the route to google.com

BenFranske at 16:01, 13 June 2011

2011-06-13T16:01:15Z

@@ Line 10: / Line 10: @@
 = Session 2 =
-# Startup and login to your Ubuntu Server VM.  Remember that your user account is not an administrator (root) but that some of these commands need to be run as the root user. This can be done several ways but the best practice is to stay logged in as your regular user account and put '''sudo''' in front of any command that requires administrative privileges. The first time you do this in a session or if enough time goes by you will be prompted to enter your regular password as verification of your account.
+# Startup and login to your Ubuntu Server VM. Remember that your user account is not an administrator (root) but that some of these commands need to be run as the root user. This can be done several ways but the best practice is to stay logged in as your regular user account and put '''sudo''' in front of any command that requires administrative privileges. The first time you do this in a session or if enough time goes by you will be prompted to enter your regular password as verification of your account.
 # Review of work with files and directories
 ## Use the ls command to list ''all'' files in your current (home) directory
@@ Line 40: / Line 40: @@
 ## Use the chmod command to change the permissions on a file or directory somewhere within the '''~/linuxlabs/''' directory hierarchy using both octal and symbolic modes
 #Try using the locate, find, whereis, which and type commands to try finding various files on your system. Remember that some of these utilities use a database of files on your system which needs to be updated from time to time. Some of the filenames you can try searching for are: syslog, interfaces, ls, bash, more, nano, sources.list