hostname on FC is different over the network

[kp7qc]

Hi, I'm a total newbie here so please be patient with me.

I've just installed FC12 on my nettop and I've notice that when I go to "system -> network" the hostname is "Fedora001". When I ping its IP I get "new-host.home". What did I do or didn't do? How do I correct this? Do I need to change it in the "hostname" file?Also, can I leave "domain" field blank?

Thank you so much everyone!!!

[scott32746]

Hello,

Here is a website that should help you

http://jblevins.org/computing/linux/hostname

[jpollard]

Also--

You can ignore the X server issues unless you have enabled TCP connections to
the server. To do that calls for a manual intervention on the X configuration as the
X server will use a domain socket for all local connections.

If you must get remote X connections to work then I strongly recommend using
ssh to forward X connections (it is MUCH more secure than direct TCP connections
and in some cases is even faster)

[kp7qc]

Thanks guys...this is very helpful!!!

[kp7qc]

ok, so I've read that link and check my hostname according to it but I'm still seeing "new-host.home" over the network as the hostname. My F12 is connected wirelessly could that be the reason why? what else can I change to see "fedora001" as my hostname over the network? Thanks again!

[scott32746]

look in /etc/hosts , /etc/sysconfig/network-scripts/ethX , /etc/HOSTNAME , /etc/resolv.conf , /etc/sysconfig/network

[jpollard]

You will also have to check the name server configuration files /etc/named.conf.

In my case, I have a caching only server so no local names are supported. but
you may have a local zone defined which may have the name.

well, part of the name. When the system uses DNS for a lookup it appends
the domain specified in the /etc/resolv.conf to the hostname to find an IP number.

Because my /etc/resolv.conf file is configured via DHCP, my ISP specifies that
it contain:

domain myhome.westell.com
search myhome.westell.com
nameserver 192.168.1.1
nameserver 192.168.0.8

My addition is the 192.168.0.8 for my local server to access the local cache.

This means that any hostname being referenced will be <hostname>.myhome.westell.com.

It is possible to add another search entry to try a different domain (say for local
hosts).

[kp7qc]

Hey guys, I've looked at all the files that you have mention and I can't find hostname "new-host" anywhere. I really appreciate your patient and time. Any additional info would really help! THANK YOU

/etc/hosts
# hostname fedora001 added to /etc/hosts by anaconda
127.0.0.1 localhost.localdomain localhost fedora001
::1 localhost6.localdomain6 localhost6 fedora001

/etc/sysconfig/network-scripts/ethX: (there's no such file that starts with 'ethX')
ifcfg-eth0 ifdown-isdn ifup-eth ifup-ppp
ifcfg-lo ifdown-post ifup-ippp ifup-routes
ifcfg-wlan0 ifdown-ppp ifup-ipsec ifup-sit
ifdown ifdown-routes ifup-ipv6 ifup-tunnel
ifdown-bnep ifdown-sit ifup-ipx ifup-wireless
ifdown-eth ifdown-tunnel ifup-isdn init.ipv6-global
ifdown-ippp ifup ifup-plip net.hotplug
ifdown-ipsec ifup-aliases ifup-plusb network-functions
ifdown-ipv6 ifup-bnep ifup-post network-functions-ipv6

/etc/HOSTNAME:
no such file

/etc/resolv.conf:
# Generated by NetworkManager
domain home
search home
nameserver 192.168.1.1
nameserver x.x.x.x

/etc/sysconfig/network:
NETWORKING=yes
HOSTNAME=fedora001

[scott32746]

Under /etc/hosts
change this
127.0.0.1 localhost.localdomain localhost fedora001
TO
127.0.0.1 fedora001 localhost.localdomain localhost

/etc/resolv.conf
nameserver x.x.x.x
TO
nameserver 8.8.8.8



NOTE: 8.8.8.8 is google DNS servers

[kp7qc]

I've made the change and rebooted F12 but it still shows the same. This thing is driving crazy...this never happened when I had windows XP installed. :-p I can't see what else could it be. Thanks again Scott32746!

C:\Users\user1>ping -a 192.168.1.3

Pinging new-host.home [192.168.1.3] with 32 bytes of data:
Reply from 192.168.1.3: bytes=32 time=10ms TTL=64
Reply from 192.168.1.3: bytes=32 time=5ms TTL=64
Reply from 192.168.1.3: bytes=32 time=4ms TTL=64

[scott32746]

Do you think you have the ip being used by a different computer ?
In /etc/hosts what is 192.168.1.3 assigned to ?
Sorry in etc/sysconfig/network-scripts I made an error
look in /etc/sysconfig/network-scripts/ifcfg-eth0 and ifcfg-wlan0

[kp7qc]

I've check all my other PC and there are no duplicate IP. Should I assign a static IP for "fedora001"? but then there's no point of having my router giving out IP via DHCP.

/etc/hosts:
# hostname fedora001 added to /etc/hosts by anaconda
# 127.0.0.1 localhost.localdomain localhost fedora001
127.0.0.1 fedora001 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6 fedora001

/etc/sysconfig/network-scripts/ifcfg-eth0:
# Intel Corporation 82540EM Gigabit Ethernet Controller
DEVICE=eth0
HWADDR=00:08:74:01:AE:F0

/etc/sysconfig/network-scripts/ifcfg-wlan0:
# Manufacturer_Realtek RTL8187B_WLAN_Adapter
DEVICE=wlan0
HWADDR=00:131:0D:BF:AB

[zek]

Hi, don't despair

I had a similar problem on my system. In my case the cause was not Fedora but that the DNS name server did not support IPv6.

Disabling IPv6 allowed Fedora to set the hostname on the network. XP doesn't have that problem on my system because well I don't know maybe it's too old.

To disable IPv6, edit your
/etc/sysconfig/network-scripts/ifcfg-eth0
or
/etc/sysconfig/network-scripts/ifcfg-wlan0

And add the following

IPV6INIT=no
IPV6_AUTOCONF=no

Then reboot. (Well technically it's enough to restart the network service, but anyhow.)

[jpollard]

Since this is the name seen by other systems it MUST be in DNS somewhere.

What is the DNS server for your windows system?

[kp7qc]

Hi Zek, I've done what you've suggested and rebooted but no change. I'm running F12 at home so I do not have a DNS server.