[NTLUG:Discuss] eth0:0 on CentOS

Burton Strauss Burton_Strauss at comcast.net
Tue Sep 13 09:37:52 CDT 2005


Check inside  ifcfg-eth0 ... If the device there is eth0:0, that would cause
what you are seeing.

-----Burton

-----Original Message-----
From: discuss-bounces at ntlug.org [mailto:discuss-bounces at ntlug.org] On Behalf
Of David Simmons
Sent: Tuesday, September 13, 2005 8:54 AM
To: discuss at ntlug.org
Subject: [NTLUG:Discuss] eth0:0 on CentOS

Guys,

I have a system that used to have two IP address' running on a CentOS system
(it's a server, so it's only running command-line, no gui - that's
important, as the CentOS Docs only show GUI).  It did this by having an
alias file eth0:0 in /etc/sysconfig/network-scripts/ifcfg-eth0:0

Want to change this system, so that it now only has one IP address.....so I
erased the above mentioned ifcfg-eth0:0 file and rebooted...but I got:

[root at mail root]# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:50:DA:80:72:42
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2047 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2098 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:319114 (311.6 Kb)  TX bytes:851785 (831.8 Kb)
          Interrupt:10 Base address:0xc800

eth0:0    Link encap:Ethernet  HWaddr 00:50:DA:80:72:42
          inet addr:67.14.219.111  Bcast:67.14.219.255  Mask:255.255.255.248
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:10 Base address:0xc800

so I did:

[root at mail /]# find / -name "*eth0*" -print /proc/sys/net/ipv4/conf/eth0
/proc/sys/net/ipv4/neigh/eth0 /var/lib/dhcp/dhclient-eth0.leases
/etc/sysconfig/network-scripts/ifcfg-eth0
/etc/sysconfig/network-scripts/ORIGINAL_ifcfg-eth0
/etc/sysconfig/network-scripts/WAS_NS2_ifcfg-eth0
/etc/sysconfig/networking/devices/ifcfg-eth0
/etc/sysconfig/networking/devices/ifcfg-eth0:0
/etc/sysconfig/networking/profiles/default/ifcfg-eth0
/etc/sysconfig/networking/profiles/default/ifcfg-eth0:0

and erased all of these other ifcfg-eth0:0 files....and rebooted...but still
continue to have the second eth0:0 appearing and my main 'eth0' now doesn't
have an IP address.

HELP...any way, from command-line, to get rid of this?  What am I missing?

Thanks in advance - Dave


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