Correctly changing IP address on Solaris 8
Michael Schloh von Bennewitz
found me answer regardless.
I want to change the IP Address of my x86 box with Solaris 8. I tried
the manual way, modifying /etc/inet/hosts, netmasks, and any DNS configs
I have. Then strange network behavior began that led me to believe that
this is not all I have to do. I am missing something or maybe even going
about it totatlly wrong.
How would a professional (without a script) change the IP Address of a
server machine or workstation machine. I have an isolated network with
only two or three computers.
Thank you.
Paul Hermans
After the reboot you will be asked for the new config again.
Take notice that some files return to system-default again, like
/etc/defaultrouter
/etc/vfstab
"Michael Schloh von Bennewitz" <msc...@netscape.net> wrote in message
news:3B6FAC86...@netscape.net...
Michael Schloh von Bennewitz
One of the machines has no video card, and during the sys config phase
of Solaris 8 this presents a problem, no? I can't possibly be in on a
telnet session on that machine while while running the sysconfig utility
*before* bootup.
I may be getting something wrong here, but please forgive because I
can't really 'try this out' without risking a complete reinstall if I
can't boot later due to an unconfigurable system.
An idea - can I connect a normal RS-232 cable between computers? I once
saw a technician installing Solaris in this way on a big Sparc server.
Thanks,
Michael
--mouse--
edit /etc/hosts and alter IP address as per your server name defined in
/etc/hostname.<device>
ifconfig <device> down
ifconfig <device> <new ip> up (or any other switches you might need like
netmask etc - man ifconfig)
you may need to alter
/etc/inet/networks
/etc/inet/netmasks
/etc/defaultrouter
and any static routes you have put in any rc scripts
"Paul Hermans" <p.he...@opentsp.com> wrote in message
news:9kobbe$2u4$1...@news1.xs4all.nl...
Joe Bloggs
"Michael Schloh von Bennewitz" <msc...@netscape.net> wrote in message
news:3B6FB5D5...@netscape.net...
Mathew Kirsch
> Sure this topic has probably been addressed (too much), but I haven't
> found me answer regardless.
You couldn't have looked terribly hard.
> I want to change the IP Address of my x86 box with Solaris 8. I tried
> the manual way, modifying /etc/inet/hosts, netmasks, and any DNS configs
> I have. Then strange network behavior began that led me to believe that
> this is not all I have to do. I am missing something or maybe even going
> about it totatlly wrong.
What's the strange behaviour?
> How would a professional (without a script) change the IP Address of a
> server machine or workstation machine. I have an isolated network with
> only two or three computers.
All you need to do to change the IP on a Sun is edit /etc/hosts, add the
appropriate netmask to /etc/netmasks, and change /etc/defaultrouter if
necessary. Then reboot.
John Davis
I built dozens of machines like this at my desk using that Windoze
Hyperterminal a couple years back...
"--mouse--" <mo...@NO-SPAM.com> wrote in message news:<CAOb7.3246$da2....@news11-gui.server.ntli.net>...
Joe Bloggs
/etc/net/ticlts/hosts
/etc/net/ticots/hosts
/etc/net/ticotsord/hosts
"--mouse--" <mo...@NO-SPAM.com> wrote in message
news:CAOb7.3246$da2....@news11-gui.server.ntli.net...
bo...@jumpspace.net
> I want to change the IP Address of my x86 box with Solaris 8. I tried
> the manual way, modifying /etc/inet/hosts, netmasks, and any DNS configs
> I have. Then strange network behavior began that led me to believe that
> this is not all I have to do. I am missing something or maybe even going
> about it totatlly wrong.
> How would a professional (without a script) change the IP Address of a
> server machine or workstation machine. I have an isolated network with
> only two or three computers.
Edit /etc/hosts to have the correct name->ip mappings
Edit hostname.xxx (xxx is an interface) to have the
correct name. If it has multiple interfaces modify
all of them.
Edit /etc/defaultrouter
Edit /etc/defaultdomain
Edit /etc/resolv.conf
Edit /etc/nodename
This should cover about everything.
Roger Books
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Michael Schloh von Bennewitz
I tried yours and Joe Bloggs' approach. Actually, I've now gotten past
my original problem. However, I can't make a serial connection between
computers, and find this troubling.
I am poor eneough to only have Intel-based machines at home, so I am
dealing with the COM1 and COM2 ports of both machines running Solaris 8.
My /etc/remote file has a line for 'hardwire' as standard connecting to
the ttyterm b device. When I type 'tip hardwire' I receive the error
message, 'All ports busy.' Also, when running admintool to run a login
service on a serial port, the admintool reports 'unable to list serial
devices' after I select the serial drop down menu.
Looking through Anserbook2 docs, online, and manpages I have not yet
found my answer. I even tried connecting to the headless machine with a
Windoze machine, and nothing came back from the serial session. The BIOS
settings are correct, so that's not the problem. I have a null-modem 9
pin cable, plugged in to (either) one of the COM ports wired to the ASUS
motherboard.
Any ideas?
Michael
Dave Marquardt
Michael> I want to change the IP Address of my x86 box with Solaris 8. I tried
Michael> the manual way, modifying /etc/inet/hosts, netmasks, and any DNS
Michael> configs I have. Then strange network behavior began that led me to
Michael> believe that this is not all I have to do. I am missing something or
Michael> maybe even going about it totatlly wrong.
Michael> How would a professional (without a script) change the IP Address of a
Michael> server machine or workstation machine. I have an isolated network with
Michael> only two or three computers.
Try running
sys-unconfig
--
Dave Marquardt
Sun Microsystems, Inc.
Austin, TX
+1 512 401-1077
Philip Brown
>no thats the overkill way
>
>edit /etc/hosts and alter IP address as per your server name defined in
>/etc/hostname.<device>
>
>ifconfig <device> down
>ifconfig <device> <new ip> up
personally, I'd use
ifconfig <dev>:1 <newip> netmask + broadcast + up
and have both active until I could schedule official downtime.
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The word of the day is mispergitude
Michael Schloh von Bennewitz
I solved my problem (which was a little misguided - not IP address change.)
However, you bring up an interesting topic. Is this how one can have
multiple IP addresses assigned to one machine, without having a
multi-port NIC?
Could I do
ifconfig dev:1
ifconfig dev:2
...
ifconfig dev:4
without having just a 'ifconfig dev ip netmask' in a startup file? Would
all incoming packets addressed to these four IP addresses be served in
this case? Cool.
Michael
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--mouse--
> multiple IP addresses assigned to one machine, without having a
> multi-port NIC?
>
> Could I do
>
> ifconfig dev:1
> ifconfig dev:2
> ...
> ifconfig dev:4
Yes, create a /etc/hostname.hme0:1, /etc/hostname.hme0:2 etc
In there put a name for each virtual interface
In /etc/hosts, put an ip address to correspond to the hostnames.
This will ensure it is retained across reboots
To do it on the fly do:
ifconfig hme0:1 plumb
ifconfig hme0:1 <ip address> netmask <netmask> up