OPS235 Lab 7 - Fedora17
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Contents
Setup and Configure Secure Shell Services (ssh) Using Virtual Machines
Objectives
- To set up, configure Secure Shell Services (ssh/sshd)
- To use the ssh, scp, and sftp clients to access another host securely
- Use ssh to tunnel X applications
- Use ssh to tunnel other traffic
- To customize sshd to create a more private, secure system
Reference
- man pages for ssh, ssh-keygen, sshd_config, ssh_config, scp, netstat, sftp, ifconfig, ping, arp, netstat, service
- A good ssh tutorial
- A good HOW-TO to make ssh more secure
Required materials
- Fedora 12 Live CD or a classmate on the same pod
- One SATA hard disk in a removable drive tray with Fedora host and 3 Fedora Virtual Machines installed
- Completion of Lab 6
Lab Preparation
Lab Investigations
Investigation 1: How do you enable the sshd service.
- OpenSSH should have been installed by default. Lets confirm this by issuing the command:
-
rpm -qa | grep ssh
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- You should see a number of packages installed including
openssh-clients
andopenssh-server
-
openssh-server<code> installs a service called <code>sshd
, confirm this service is running by issuing the command:-
service sshd status
-
- Now check that the sshd service is configured to start for runlevels 2, 3, 4, & 5, by issuing the command:
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chkconfig --list sshd
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- If the service is not configured correctly fix it by issuing the command:
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chkconfig --level 2345 sshd on
-