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Set Hostname Entry

Keep in mind we are trying to imitate a real-world scenario to demonstrate fundamental security concepts. In a production environment we'd be using DNS.

Instructions to add hostname to /etc/hosts on target machine

If SSL connectivity is to occur between a client and server residing on separate machines, the public key's common name must match the hostname set here.
  1. Determine IP address of target machine: 
                
    
# /sbin/ifconfig
    Example output contains 192.168.1.101: 
                
    
eth0      Link encap:Ethernet  HWaddr 00:0c:29:43:94:0c
inet addr:192.168.1.101  Bcast:192.168.1.255  Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe43:940c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:408641 errors:0 dropped:0 overruns:0 frame:0
TX packets:134769 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:458268505 (458.2 MB)  TX bytes:28361917 (28.3 MB)
  2. Add new hostname entry using current IP address:

    1. Edit the hosts file 
                  
      
# sudo vi /etc/hosts
    2. Use your IP address for new host entry: 
                  
      
192.168.1.101     fortressdemo2.com
    3. Save and exit

  3. Ping hostname: 
                
    
# ping fortressdemo2.com
    Verify results: 
                
    
PING fortressdemo2.com (192.168.1.101) 56(84) bytes of data.
64 bytes from fortressdemo2.com (192.168.1.101): icmp_req=1 ttl=64 time=0.106 ms
64 bytes from fortressdemo2.com (192.168.1.101): icmp_req=2 ttl=64 time=0.052 ms
64 bytes from fortressdemo2.com (192.168.1.101): icmp_req=3 ttl=64 time=0.055 ms
64 bytes from fortressdemo2.com (192.168.1.101): icmp_req=4 ttl=64 time=0.068 ms

This is free and unencumbered software released into the public domain.