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alias network interface (consolidating 3 interfaces on a server)

Posted on 2008-11-08
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Last Modified: 2013-12-27
I inherited a Solaris 8 server from the previous administrator & this server has
3 active NIC interfaces with following IP addresses :

hostname.qfe0 : 10.51.1.41
hostname.qfe1 : 10.51.1.42
hostname.hme0: 10.51.1.23

All of them has the same network mask 255.255.255.0      &
the same gateway 10.51.1.254.

This setup doesn't look right as there are 3 physical cables connected up
& all 3 NICs are active/Up.

I'll need to reduce them to one NIC but users/scripts should still be able to access
all 3 IP addresses.  I heard this can be achieved by defining alias.

How do I go about doing this?  Appreciate step by step instruction (eg, which
/etc/hostname.xxx file to remove/create/modify)

Suppose this should not be too difficult as all the IP addresses are in the same
subnet
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Question by:sunhux
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woolmilkporc earned 400 total points
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by:Saranyakkali
Saranyakkali earned 400 total points
ID: 22912034
it is very simple.  Add the hostnames in hostname.xxx mention same in /etc/hostnames and if any changes in netmasks or default router change it.... Final steps bring down interfaces ifconfig xxx down re up the interfaces it pike up new ip and new name.,,
Ifconfig -a shows ip and host name for each interface
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by:omarfarid
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Author Comment

by:sunhux
ID: 22919581
Anyone foresee any possible issues that I may have overlooked,
example any scripts/applications that may have hardcoded IP addr
or interface names?
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by:omarfarid
omarfarid earned 600 total points
ID: 22921240
do you have any monitoring tools / scripts on the system?
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Author Closing Comment

by:sunhux
ID: 31514637
Ok, thanks Omar, I'll take care of the CA Unicentre monitoring tool in case it triggered alarm.  As for scripts, I'm not sure .....  this system was set up by the administrator who is 3 generations earlier than me in 2001
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