display name is changed - redhat , Server 3

Dear all,
I am new to linux.Whenever I login linux displayed'root@localhost' but
now it is
(E-Mail Removed) feel someonee would have worked in my computer .How to get
bach 'root@localhost'.How to completely delete info and other settings
of host9.What is this meanining(Host9).Is there anyway to protect the
pc from all these .
Thank you all.
Raam

On 24 Mar 2006 20:24:55 -0800, raam wrote:
> Dear all,
> I am new to linux.Whenever I login linux displayed'root@localhost'
> but now it is (E-Mail Removed) feel someonee would have worked in my
> computer .

Host name change can come via the dhcp server if you ask for it and it
supports the request.


> How to get bach 'root@localhost'.How to completely delete info and
> other settings of host9.What is this meanining(Host9).Is there
> anyway to protect the pc from all these .

I think localhost should not be the host name. I always name the host
and disable dhcp from changing the name. That can keep other apps happier.

You may want to read http://www.catb.org/~esr/faqs/smart-questions.html
There are 200+ linux distributions which have different config
files/locations and commands.

Do bookmark this very large, Frequently Asked Questions (faq) search engine
http://groups.google.com/advanced_group_search
key words(s) in the first box
*linux* in Newsgroup box. You need to use the two
asterisks around linux, pick English



On my Mandriva Linux 2006 Official I have

$ cat /etc/sysconfig/network
HOSTNAME=wb.home.invalid <==== sets hostname on boot
NETWORKING=yes
NETWORKING_IPV6=no
GATEWAYDEV=eth0
GATEWAY=192.168.2.1

$ head -4 /etc/hosts
127.0.0.1 localhost
192.168.2.1 fw.home.invalid fw
192.168.2.10 wb.home.invalid wb <=======
192.168.2.12 wb1.home.invalid wb1


Depending on release and dhcp client, adding
NEEDHOSTNAME=no
in the dhcp nic (/etc/sysconfig/network-scripts/ifcfg-ethX)
keeps the dhcp client from changing host name.

On 24 Mar 2006, in the Usenet newsgroup comp.os.linux.networking, in article
<(E-Mail Removed) .com>, raam wrote:

>I am new to linux.Whenever I login linux displayed'root@localhost' but
>now it is (E-Mail Removed) feel someonee would have worked in my computer .

First off, please don't log in as root unless you absolutely have to
for maintenance. The root account is not a user account, and has NO
protection against mistakes. What does your system think it's name
is? Look at the contents of /etc/sysconfig/network and the output of
the 'hostname' command.

>How to get bach 'root@localhost'.How to completely delete info and other
>settings of host9.What is this meanining(Host9).Is there anyway to
>protect the pc from all these .

How are you connecting to the network? If this is a dialin, the most
likely answer is you've set some "helper" tool like kppp to configure
the system to whatever IP your ISP hands out. I don't use that kind of
software, but postings have said:

Start Kppp, select SETUP, select ACCOUNTS, right click mouse on your
ISP' name to highlight it, select EDIT, select IP, select Dynamic IP
Address, _uncheck_ the Autoconfigure hostname from this ISP box, OK, OK,

If you are connecting via Ethernet, this is a configuration of your DHCP
client. See the man page for that client, and look at it's configuration
file.

Old guy