221
edits
Changes
→Adding a rule
* Now if you try to start lin1 - it will tell you that the network "default" is unavailable. Go into the lin1 VM settings and configure the NIC to use "network1" instead.
* After starting the VM you'll find that your network interface is not configured (try all the commands above again to see their output).
* Configure your wired interface by editing the file as described in the steps below.
* Change to the '''/etc/sysconfig/network-scripts''' directory.
* List the contents of this directory. You should see 2 different types of files, network config scripts and network configuration files.
* Install the Apache web server on lin1 (the package is called httpd).
* Enable and start that service.
* Install links elinks (a command-line web browser) and see if you can connect to http://localhost (it should work by default).
* Using Firefox on c7host, check whether you can view the same webpage in lin1 (by default you wont).
* Next, check the iptables rules in lin1 and try to figure out why Firefox could not connect from c7host by reading the output of <code>iptables -L</code> on lin1 carefully looking for clues whether lin1 is letting inbound http traffic (TCP port 80) through.
# lin1 will allow access to Apache from any source.
# c7host will allow access to SSH from hosts on the 192.168.210.* subnet and deny it from why any other source.
= Lab completion =