set FQDN for hostname

[Thufir Hawat]

On Thu, 04 Nov 2010 23:22:01 -0400, Ric Moore wrote:


> Can't just edit /etc/hosts?? Always works for me.
> 
> wayward4now at iam:~$ more /etc/hosts
> 127.0.0.1       linux.local     localhost.localdomain   localhost
> 192.168.0.2     iam.wayward4now.net     iam


Hmm, doesn't seem to work for me.   After a restart:

thufir at arrakis:~$ 
thufir at arrakis:~$ 
thufir at arrakis:~$ hostname
arrakis
thufir at arrakis:~$ 
thufir at arrakis:~$ nl /etc/hosts
     1	127.0.0.1	localhost
     2	127.0.1.1	tleilax.servebeer.com 		tleilax
     3	#127.0.1.1	arrakis.vs.shawcable.net	arrakis
       
       
     4	# The following lines are desirable for IPv6 capable hosts
     5	::1     localhost ip6-localhost ip6-loopback
     6	fe00::0 ip6-localnet
     7	ff00::0 ip6-mcastprefix
     8	ff02::1 ip6-allnodes
     9	ff02::2 ip6-allrouters
thufir at arrakis:~$ 
thufir at arrakis:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:0d:88:37:fa:22  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:17 Base address:0xc800 

eth1      Link encap:Ethernet  HWaddr 00:16:ec:23:af:88  
          inet addr:192.168.1.5  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::216:ecff:fe23:af88/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:5527 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5377 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:5151009 (5.1 MB)  TX bytes:658471 (658.4 KB)
          Interrupt:19 Base address:0xb000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:14 errors:0 dropped:0 overruns:0 frame:0
          TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:820 (820.0 B)  TX bytes:820 (820.0 B)

thufir at arrakis:~$ 
thufir at arrakis:~$ 


Can I just restart the networking service to get the new hostname to take 
effect?  Does my IP address matter?  Will it break things to take the FQDN 
from my ISP out of the mix?


-Thufir