11:57 a.m.
I know it's a Very Dumb Question; I just can't find a general
answer that works.
I want to stop calling all the machines on my LAN
localhost.localdomain, and give them distinctive names. I have found two
or three ways of doing so; but they don't stick.
The only way that really works, for me at least, is to think of
it (and be ready) while doing a fresh install. When anaconda asks me
whether to use dhcp, I can click on manual, type in a name, click back to
using dhcp, and that name lasts.
I'm not even sure now whether it's mere logging out and back in,
or just actual reboots that do it, but in a location subject to longer
power failures than the UPSs I can afford will ride out, I get enough
reboots, too (alas!).
One other way that I've tried is to use system-config-network,
and edit the configuration of eth0; but that seems to be little more than
a pacifier. I want something that shows up in the prompts, and that I can
use in ssh and scp, without having to look up IP numbers on the router
all the time -- especially since not all LAN machines are on one floor.
Clue, please? Pretty please?
--
Beartooth Staffwright, PhD, Neo-Redneck Linux Convert
Fedora 8 & 9; Alpine 1.10, Pan 0.132; Privoxy 3.0.6;
Dillo 0.8.6, Galeon 2, Epiphany 2, Opera 9, Firefox 2 & 3
Remember I know precious little of what I am talking about.
12:06 p.m.
Beartooth wrote:
I know it's a Very Dumb Question; I just can't find a
general
answer that works.
I want to stop calling all the machines on my LAN
localhost.localdomain, and give them distinctive names. I have found two
or three ways of doing so; but they don't stick.
The only way that really works, for me at least, is to think of
it (and be ready) while doing a fresh install. When anaconda asks me
whether to use dhcp, I can click on manual, type in a name, click back to
using dhcp, and that name lasts.
I'm not even sure now whether it's mere logging out and back in,
or just actual reboots that do it, but in a location subject to longer
power failures than the UPSs I can afford will ride out, I get enough
reboots, too (alas!).
One other way that I've tried is to use system-config-network,
and edit the configuration of eth0; but that seems to be little more than
a pacifier. I want something that shows up in the prompts, and that I can
use in ssh and scp, without having to look up IP numbers on the router
all the time -- especially since not all LAN machines are on one floor.
Clue, please? Pretty please?
Hi Beartooth,
I don't use dhcp so this answer may not apply; however, all of my
machines set their hostnames in /etc/sysconfig/network:
HOSTNAME=box1.example.com
hth,
:m)
12:07 p.m.
Hi,
On Mon, Sep 29, 2008 at 10:27 PM, Beartooth <Beartooth(a)swva.net> wrote:
I know it's a Very Dumb Question; I just can't find a general
answer that works.
I want to stop calling all the machines on my LAN
localhost.localdomain, and give them distinctive names. I have found two
or three ways of doing so; but they don't stick.
The only way that really works, for me at least, is to think of
it (and be ready) while doing a fresh install. When anaconda asks me
whether to use dhcp, I can click on manual, type in a name, click back to
using dhcp, and that name lasts.
I'm not even sure now whether it's mere logging out and back in,
or just actual reboots that do it, but in a location subject to longer
power failures than the UPSs I can afford will ride out, I get enough
reboots, too (alas!).
One other way that I've tried is to use system-config-network,
and edit the configuration of eth0; but that seems to be little more than
a pacifier. I want something that shows up in the prompts, and that I can
use in ssh and scp, without having to look up IP numbers on the router
all the time -- especially since not all LAN machines are on one floor.
From above description, I guess you want a hostname resolution to IP address.
That
you can do by editing '/etc/hosts'. After adding hotname/IP pair
you can use host names.
Not sure you want something else.
Thanks,
Anoop
Clue, please? Pretty please?
--
Beartooth Staffwright, PhD, Neo-Redneck Linux Convert
Fedora 8 & 9; Alpine 1.10, Pan 0.132; Privoxy 3.0.6;
Dillo 0.8.6, Galeon 2, Epiphany 2, Opera 9, Firefox 2 & 3
Remember I know precious little of what I am talking about.
--
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12:19 p.m.
Beartooth wrote:
I know it's a Very Dumb Question; I just can't find a
general
answer that works.
I want to stop calling all the machines on my LAN
localhost.localdomain, and give them distinctive names. I have found two
or three ways of doing so; but they don't stick.
The only way that really works, for me at least, is to think of
it (and be ready) while doing a fresh install. When anaconda asks me
whether to use dhcp, I can click on manual, type in a name, click back to
using dhcp, and that name lasts.
I'm not even sure now whether it's mere logging out and back in,
or just actual reboots that do it, but in a location subject to longer
power failures than the UPSs I can afford will ride out, I get enough
reboots, too (alas!).
One other way that I've tried is to use system-config-network,
and edit the configuration of eth0; but that seems to be little more than
a pacifier. I want something that shows up in the prompts, and that I can
use in ssh and scp, without having to look up IP numbers on the router
all the time -- especially since not all LAN machines are on one floor.
Clue, please? Pretty please?
Three files can affect the system name.
The name seen in the prompt is from the hostname command, which gets set
from:
/etc/sysconfig/network
HOSTNAME=
When your system connects to the network, it can tell the network which
name it wants to be known as. This name, which dynamic DNS servers can
receive from the DHCP service, are configured in the network
configuration script, such as:
/etc/sysconfig/network-scripts/ifcfg-eth0
DHCP_HOSTNAME=
Programs on your local system use a consistent method to look up IP
addresses and associated host names. In most cases, the local
/etc/hosts file is consulted first, and then DNS or other services.
Therefore, some applications on your system, like sendmail, can get
hostname from:
/etc/hosts
These three files/methods cover %99 of user systems, and are very likely
all you would need to look at.
Good Luck!
4:21 p.m.
On Mon, 29 Sep 2008 11:19:54 -0600, Phil Meyer wrote:
I Beartooth wrote:
> I know it's a Very Dumb Question; I just can't find a general
> answer that works.
[....]
> Clue, please? Pretty please?
>
>
Three files can affect the system name.
The name seen in the prompt is from the hostname command, which gets set
from:
/etc/sysconfig/network
HOSTNAME=
OK, I changed that one on this machine.
When your system connects to the network, it can tell the network
which
name it wants to be known as. This name, which dynamic DNS servers can
receive from the DHCP service, are configured in the network
configuration script, such as:
/etc/sysconfig/network-scripts/ifcfg-eth0 DHCP_HOSTNAME=
That one already had the name I wanted.
Programs on your local system use a consistent method to look up IP
addresses and associated host names. In most cases, the local
/etc/hosts file is consulted first, and then DNS or other services.
Therefore, some applications on your system, like sendmail, can get
hostname from:
/etc/hosts
Two very odd things. First nano -w doesn't make it obvious to me
(though perhaps it should) how much is one line, how much another :
GNU nano 2.0.6 File: /etc/
hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost localhost
::1 localhost6.localdomain6 localhost6
I have no idea where that 6 comes from, nor what it's doing there.
Second, if I open Computer > Filesystem > /etc with nautilus, I
don't see hosts at all! The search button or search tool on my panel
finds 81 files whose name contains "hosts", one of which is indeed /etc/
hosts; but clicking on that does get it in gedit, which looks much the
same :
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost localhost
::1 localhost6.localdomain6 localhost6
Is what begins with "::1" really a different line, then, than the
127.0.0.1 line?
Also, it doesn't say not to edit that line, just not to delete
it. Do I want to change "localhost" (without the 6) there??
These three files/methods cover %99 of user systems, and are very
likely
all you would need to look at.
Good Luck!
Thanks! I've got a feelin' I'm gonna need it ...
--
Beartooth Staffwright, PhD, Neo-Redneck Linux Convert
Fedora 8 & 9; Alpine 1.10, Pan 0.132; Privoxy 3.0.6;
Dillo 0.8.6, Galeon 2, Epiphany 2, Opera 9, Firefox 2 & 3
Remember I know precious little of what I am talking about.
5:35 p.m.
Beartooth wrote:
On Mon, 29 Sep 2008 11:19:54 -0600, Phil Meyer wrote:
> I Beartooth wrote:
>
>> I know it's a Very Dumb Question; I just can't find a general
>> answer that works.
>>
[....]
>> Clue, please? Pretty please?
>>
>>
>>
> Three files can affect the system name.
>
> The name seen in the prompt is from the hostname command, which gets set
> from:
> /etc/sysconfig/network
> HOSTNAME=
>
OK, I changed that one on this machine.
The change will take effect upon the next reboot.
> When your system connects to the network, it can tell the network
which
> name it wants to be known as. This name, which dynamic DNS servers can
> receive from the DHCP service, are configured in the network
> configuration script, such as:
> /etc/sysconfig/network-scripts/ifcfg-eth0 DHCP_HOSTNAME=
>
That one already had the name I wanted.
> Programs on your local system use a consistent method to look up IP
> addresses and associated host names. In most cases, the local
> /etc/hosts file is consulted first, and then DNS or other services.
> Therefore, some applications on your system, like sendmail, can get
> hostname from:
> /etc/hosts
>
Two very odd things. First nano -w doesn't make it obvious to me
(though perhaps it should) how much is one line, how much another :
GNU nano 2.0.6 File: /etc/
hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost localhost
::1 localhost6.localdomain6 localhost6
I have no idea where that 6 comes from, nor what it's doing there.
Second, if I open Computer > Filesystem > /etc with nautilus, I
don't see hosts at all! The search button or search tool on my panel
finds 81 files whose name contains "hosts", one of which is indeed /etc/
hosts; but clicking on that does get it in gedit, which looks much the
same :
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost localhost
::1 localhost6.localdomain6 localhost6
Is what begins with "::1" really a different line, then, than the
127.0.0.1 line?
Also, it doesn't say not to edit that line, just not to delete
it. Do I want to change "localhost" (without the 6) there??
> These three files/methods cover %99 of user systems, and are very likely
> all you would need to look at.
>
> Good Luck!
>
Thanks! I've got a feelin' I'm gonna need it ...
It looks like your 'hostname' was not in /etc/hosts, so don't change it. :)
Mostly folks with fixed IPs or servers mess with /etc/hosts and then
forget they did it. :)
Yes, those two localhost lines are required:
1 for IPv4 and 2 for IPv6
Good luck!
5:50 p.m.
--- On Mon, 9/29/08, Beartooth <Beartooth(a)swva.net> wrote:
From: Beartooth <Beartooth(a)swva.net>
Subject: Re: VDQ : machine names??
To: fedora-list(a)redhat.com
Date: Monday, September 29, 2008, 9:21 PM
On Mon, 29 Sep 2008 11:19:54 -0600, Phil Meyer wrote:
> I Beartooth wrote:
>> I know it's a Very Dumb Question; I just
can't find a general
>> answer that works.
[....]
>> Clue, please? Pretty please?
>>
>>
> Three files can affect the system name.
>
> The name seen in the prompt is from the hostname
command, which gets set
> from:
> /etc/sysconfig/network
> HOSTNAME=
OK, I changed that one on this machine.
> When your system connects to the network, it can tell
the network which
> name it wants to be known as. This name, which
dynamic DNS servers can
> receive from the DHCP service, are configured in the
network
> configuration script, such as:
> /etc/sysconfig/network-scripts/ifcfg-eth0
DHCP_HOSTNAME=
That one already had the name I wanted.
> Programs on your local system use a consistent method
to look up IP
> addresses and associated host names. In most cases,
the local
> /etc/hosts file is consulted first, and then DNS or
other services.
> Therefore, some applications on your system, like
sendmail, can get
> hostname from:
> /etc/hosts
Two very odd things. First nano -w doesn't make it
obvious to me
(though perhaps it should) how much is one line, how much
another :
GNU nano 2.0.6 File: /etc/
hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
localhost
::1 localhost6.localdomain6 localhost6
I have no idea where that 6 comes from, nor what it's
doing there.
Second, if I open Computer > Filesystem > /etc with
nautilus, I
don't see hosts at all! The search button or search
tool on my panel
finds 81 files whose name contains "hosts", one
of which is indeed /etc/
hosts; but clicking on that does get it in gedit, which
looks much the
same :
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost localhost
::1 localhost6.localdomain6 localhost6
Is what begins with "::1" really a different
line, then, than the
127.0.0.1 line?
Also, it doesn't say not to edit that line, just not
to delete
it. Do I want to change "localhost" (without the
6) there??
> These three files/methods cover %99 of user systems,
and are very likely
> all you would need to look at.
>
> Good Luck!
Thanks! I've got a feelin' I'm gonna need it
...
--
Beartooth Staffwright, PhD, Neo-Redneck Linux Convert
Fedora 8 & 9; Alpine 1.10, Pan 0.132; Privoxy 3.0.6;
Dillo 0.8.6, Galeon 2, Epiphany 2, Opera 9, Firefox 2 &
3
Remember I know precious little of what I am talking about.
--
as I remember, MySQL had a mind of its own and remembered localhost.localdomain
There is a place in network configuration to change the machine name.
I'll follow your posts and learn!
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5:09 a.m.
On Mon, 2008-09-29 at 21:21 +0000, Beartooth wrote:
Two very odd things. First nano -w doesn't make it obvious to me
(though perhaps it should) how much is one line, how much another :
GNU nano 2.0.6
File: /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost localhost
::1 localhost6.localdomain6 localhost6
I have no idea where that 6 comes from, nor what it's doing there.
The 6 is for IPv6 addresses.
The instructions that came at the top of the hosts file were always
crap. Quite often, the system had modified the hosts file before you
ever read it, so the instructions were just plain wrong. And now, since
IPv6 is being accommodated, there's *two* lines that ought to be left
alone.
Your hosts file should have the following two lines in it, without
anything else in them:
127.0.0.1 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
And if you do have your machine hostname and domain name in the hosts
file, then it should *NOT* be stuck into either of those lines. It
should be separate, and with the LAN IP address you associate with it.
e.g. 192.168.1.20 twenty.localdomain twenty mailserver
The format is numerical IP address, white space, full domain name, white
space, then any aliases for that domain name (such as the short machine
name, and any alternative names you use for it, all separated by white
space).
Second, if I open Computer > Filesystem > /etc with nautilus, I
don't see hosts at all! The search button or search tool on my panel
finds 81 files whose name contains "hosts", one of which is
indeed /etc/hosts; but clicking on that does get it in gedit, which
looks much the same :
I can't imagine why Nautilus doesn't display it, unless it is displaying
it and not where you're looking (e.g. perhaps the sorting order of the
list isn't by filename).
--
[tim@localhost ~]$ uname -r
2.6.25.14-108.fc9.i686
Don't send private replies to my address, the mailbox is ignored. I
read messages from the public lists.
10:23 a.m.
Beartooth
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost localhost
::1 localhost6.localdomain6 localhost6
The line beginning ::1 is the equivalent to 127.0.0.1 for the migration to internet
protocol version 6. Forward looking but not applicable to most networks at the moment.
Robert McBroom
--
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5686
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5690
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8 comments
7 participants
participants (7)
-
Anoop -
Beartooth -
Fred Silsbee -
Mike Wright -
Phil Meyer -
potat0 -
Tim