computer name on a LAN

[Michael Klinosky]

Sam:
> Michael Klinosky writes:
> 
>> I have a 4-port router/dsl modem, and 4 machines connected. All of my 
>> linux units have F7. All of the machines have names (set in 
>> System>Admin>Network, in 'DNS'). E.g. d500.localdomain
>>
>> I'm trying to learn rsync. However, I decided that learning a less 
>> complex program would ease the learning curve. So I'm working with rcp.
>>
>> LQ has a small tutorial at   http://wiki.linuxquestions.org/wiki/Rcp
>> which states that I can give the computer name. However, it doesn't work:
>> [mpk at d500 documents]$ rcp info 5bw130:
>> 5bw130: Unknown host
>>
>> I also tried with its lan ip:
>> [mpk at d500 documents]$ rcp info 10.0.0.6:
>> 10.0.0.6: No route to host
>>
>> What's going on here?
> 
> 1) You do not have DNS or /etc/hosts set up
> 
> 2) You do not have routing set up correctly, most likely due to 
> incorrect network interface configuration. Check your network 
> interface's subnet mask.

I don't know how to set up either of them.

Also, for #2, is that stuff that I'd config on the computer or the router?

Mikkel:
> It is hard to say without more information. Please post the output of:
>
> /sbin/ifconfig

[root at d500 ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:08:02:40:94:68
           inet addr:10.0.0.50  Bcast:10.0.0.255  Mask:255.255.255.0
           inet6 addr: fe80::208:2ff:fe40:9468/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:4745074 errors:0 dropped:0 overruns:0 frame:0
           TX packets:2730043 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:2545830161 (2.3 GiB)  TX bytes:208370217 (198.7 MiB)

You don't need the loopback, do you?

>> /sbin/route -n

[root at d500 ~]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use 
Iface
10.0.0.0        0.0.0.0         255.255.255.0   U     0      0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 eth0
0.0.0.0         10.0.0.2        0.0.0.0         UG    0      0        0 eth0

>> cat /etc/resolv.conf

; generated by /sbin/dhclient-script
nameserver 10.0.0.2

10.0.0.2 is my router.

>> Also, can you ping 10.0.0.6?

[mpk at d500 documents]$ ping 10.0.0.6
PING 10.0.0.6 (10.0.0.6) 56(84) bytes of data.
64 bytes from 10.0.0.6: icmp_seq=1 ttl=64 time=1.22 ms