setting /bin/hostname [failed]

tulsi · 11-28-2009, 06:55 AM

In my system(Centos) has setting /bin/hostname [failed] while at the booting time.
machine name has "localhost " both the /bin/hostname and /etc/hostname have localhost.
I enter the command line but like
>/bin/hostname
/bin/hostname: line 1: localhost: command not found

please help me.

repo · 11-28-2009, 07:03 AM

What is the output from

Code:

cat /etc/hostname

tommylovell · 11-28-2009, 08:15 AM

I was under the impression that CentOS was like RHEL. If that is the case, /etc/sysconfig/network should contain a HOSTNAME= entry that is used by /etc/rc.d/sysinit to set the hostname at boot time.

Code:

[root@athlonz ~]# cat /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=athlonz.tomlovell.com

[root@athlonz rc.d]# hostname
athlonz.tomlovell.com
[root@athlonz rc.d]#

/bin/hostname is an executable

Code:

[root@athlonz ~]# file /bin/hostname
/bin/hostname: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, stripped

Also, I have an entry in /etc/hosts so that reverse lookups will work, but I don't think that is necessary or even related to setting the hostname.

Code:

[root@athlonz rc.d]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1       localhost.localdomain localhost
192.168.1.94    athlonz.tomlovell.com athlonz
[root@athlonz rc.d]#

If this is not the case on CentOS, my apologies for adding to the confusion.

tulsi · 11-29-2009, 05:29 AM

>file /bin/hostname
output is

ASCII output

cat /bin/hostname
/bin/hostname line 1: localhost command not found

I have no backup for /bin/hostname.
and I set the the hostname in /etc/sysconfig/network and /etc/hostname is localhost. but nothing change. while system startup got like

/bin/hostname line 1: localhost command not found

please help me.

repo · 11-29-2009, 05:36 AM

Quote:

Originally Posted by tulsi

>file /bin/hostname
output is

ASCII output

cat /bin/hostname
/bin/hostname line 1: localhost command not found

Seems to me you have altered the file.
You need to set the hostname in

Code:

/etc/hostname

Do you have a backup from

Quote:

/bin/hostname

centosboy · 11-29-2009, 06:18 AM

Quote:

Originally Posted by repo

Seems to me you have altered the file.
You need to set the hostname in

Code:

/etc/hostname

Do you have a backup from

nah...there isnt a file called /etc/hostname.
there used to be /etc/HOSTNAME on older versions, but like tommylovell says...
hostname is set on the command line & in /etc/sysconfig/network

eth1 · 11-29-2009, 06:36 AM

Try setting the hostname in /etc/sysconfig/network, restarting/quitting the shell and then checking the hostname.