multiple ip addresses on eth0

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multiple ip addresses on eth0

Postby tuurtnt » 2012/04/18 11:50:34

Hi guys,

I have a centos 6.2 server (vps). Now I ordered an extra (public) ip address. I tried a lot of manuals on configuring this, but it does not work for me... Can anyone help?

These are my config scripts:

file: ifcfg-eth0
Code: Select all
DEVICE=eth0
BOOTPROTO=none
ONBOOT=yes
TYPE=Ethernet
USERCTL=no
IPV6INIT=no
IPV6FORWARDING=no
HWADDR=52:54:00:33:9e:d9
IPADDR=141.138.136.xx
NETMASK=255.255.255.0
GATEWAY=141.138.136.1


file: ifcfg-eth0:0
Code: Select all
DEVICE=eth0:0
BOOTPROTO=static
ONBOOT=no
TYPE=Ethernet
USERCTL=no
IPV6INIT=no
IPV6FORWARDING=no
IPADDR=141.138.141.xxx
NETMASK=255.255.255.0
GATEWAY=141.138.141.1
BROADCAST=141.138.141.255
ONPARENT=yes
NM_CONTROLLED=no


if I run ifconfig:

Code: Select all
eth0      Link encap:Ethernet  HWaddr 52:54:00:33:9E:D9 
          inet addr:141.138.136.xx  Bcast:141.138.136.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:22162 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6004 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:4326381 (4.1 MiB)  TX bytes:1886162 (1.7 MiB)

eth0:0    Link encap:Ethernet  HWaddr 52:54:00:33:9E:D9 
          inet addr:141.138.141.xxx  Bcast:141.138.141.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:677 errors:0 dropped:0 overruns:0 frame:0
          TX packets:677 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:778370 (760.1 KiB)  TX bytes:778370 (760.1 KiB)



It creates eth0:0 but I cannot ping the gateway of eth0:0 (eth0 gateway does work). Also I cannot ping the eth0:0 ipaddress (I can ping eth0 ip address)

Can anybody help me?
tuurtnt
 
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Joined: 2011/02/08 10:31:50

Re: multiple ip addresses on eth0

Postby tuurtnt » 2012/04/18 14:22:12

I want this because of an SSL connection for a website...
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Re: multiple ip addresses on eth0

Postby jlehtone » 2012/04/18 14:40:44

tuurtnt wrote:
I want this because of an SSL connection for a website...

Why would SSL require an additional IP?
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Re: multiple ip addresses on eth0

Postby tuurtnt » 2012/04/18 15:46:48

Because SNI is not an option for me....
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Re: multiple ip addresses on eth0

Postby tuurtnt » 2012/04/18 20:57:59

anyone an idea?
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multiple ip addresses on eth0

Postby pschaff » 2012/04/18 21:11:55

Still no idea why you need a second IP address to use SSL. See the upstream Deployment Guide Section 14.1.8. Setting Up an SSL Server.

P.S.:
Readme First:

12. What to do if no one answers

Please wait for at least 24 hours. The volunteers on this forum live all over the world. If it's day time where you live, it's going to be night time somewhere else and the person able to answer your question may be sleeping, so give everyone a chance to read your question. Be sure that you have refreshed the page if you left it open - new messages do not cause an auto-refresh. Also, be sure to check your Notification Method - at the bottom of each page when logged in - as it defaults to "Private Message", not email as many people seem to expect.

[color=000080]If after 24 hours you haven't received any answers, then you may bump your thread by posting more information. By more information, we mean what you have tried during the last 24 hours to fix the problem. You have been trying to fix your problem, haven't you and not just waiting for someone else to fix it for you?[/color]
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Re: multiple ip addresses on eth0

Postby TrevorH » 2012/04/18 22:39:55

Reading between the lines I think the OP wants to run multiple SSL sites using the same Apache instance and have them use separate certificates.
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Re: multiple ip addresses on eth0

Postby tuurtnt » 2012/04/19 08:03:03

TrevorH wrote:
Reading between the lines I think the OP wants to run multiple SSL sites using the same Apache instance and have them use separate certificates.


yes I have multiple vhosts with ssl... (but don't want to use SNI (lot of people still use XP... :-(
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Re: multiple ip addresses on eth0

Postby jlehtone » 2012/04/19 08:43:31

So, you will need multiple IP's then.

getinfo.sh network could help. You have not shown all details of your configuration yet.
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Re: multiple ip addresses on eth0

Postby tuurtnt » 2012/04/19 09:55:40

Here you go...

Information for network problems.
Code: Select all
== BEGIN uname -rmi ==
2.6.32-220.13.1.el6.x86_64 x86_64 x86_64
== END   uname -rmi ==

== BEGIN rpm -qa \*-release\* ==
epel-release-6-5.noarch
nginx-release-centos-6-0.el6.ngx.noarch
remi-release-6-1.el6.remi.noarch
centos-release-6-2.el6.centos.7.x86_64
centalt-release-6-1.noarch
== END   rpm -qa \*-release\* ==

== BEGIN cat /etc/redhat-release ==
CentOS release 6.2 (Final)
== END   cat /etc/redhat-release ==

== BEGIN getenforce ==
Disabled
== END   getenforce ==

== BEGIN free -m ==
             total       used       free     shared    buffers     cached
Mem:          3831        404       3426          0         28        180
-/+ buffers/cache:        195       3635
Swap:         6015          0       6015
== END   free -m ==

== BEGIN lspci -nn ==
00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02)
00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000]
00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010]
00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01)
00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03)
00:02.0 VGA compatible controller [0300]: Technical Corp. Device [1234:1111]
00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000]
00:04.0 Multimedia audio controller [0401]: Ensoniq ES1370 [AudioPCI] [1274:5000]
00:05.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001]
00:06.0 RAM memory [0500]: Red Hat, Inc Virtio memory balloon [1af4:1002]
== END   lspci -nn ==

== BEGIN lsusb ==
./getinfo.sh: line 89: lsusb: command not found
== END   lsusb ==

== BEGIN rpm -qa kmod\* kmdl\* ==
== END   rpm -qa kmod\* kmdl\* ==

== BEGIN ifconfig -a ==
eth0      Link encap:Ethernet  HWaddr 52:54:00:33:9E:D9 
          inet addr:141.138.136.xx  Bcast:141.138.136.255  Mask:255.255.255.0
          inet6 addr: fe80::5054:ff:fe33:9ed9/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:114480 errors:0 dropped:0 overruns:0 frame:0
          TX packets:19805 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:26521971 (25.2 MiB)  TX bytes:5544610 (5.2 MiB)

eth0:0    Link encap:Ethernet  HWaddr 52:54:00:33:9E:D9 
          inet addr:141.138.141.xxx  Bcast:141.138.141.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:3082 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3082 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:1863905 (1.7 MiB)  TX bytes:1863905 (1.7 MiB)

== END   ifconfig -a ==

== BEGIN brctl show ==
bridge name   bridge id      STP enabled   interfaces
== END   brctl show ==

== BEGIN route -n ==
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
141.138.141.0   0.0.0.0         255.255.255.0   U     0      0        0 eth0
141.138.136.0   0.0.0.0         255.255.255.0   U     0      0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 eth0
0.0.0.0         141.138.141.1   0.0.0.0         UG    0      0        0 eth0
0.0.0.0         141.138.136.1   0.0.0.0         UG    0      0        0 eth0
== END   route -n ==

== BEGIN cat /etc/resolv.conf ==
; generated by /sbin/dhclient-script
nameserver 80.69.67.66
nameserver 80.69.66.67
== END   cat /etc/resolv.conf ==

== BEGIN grep net /etc/nsswitch.conf ==
#networks:   nisplus [NOTFOUND=return] files
#netmasks:   nisplus [NOTFOUND=return] files     
netmasks:   files
networks:   files
netgroup:   nisplus
== END   grep net /etc/nsswitch.conf ==

== BEGIN chkconfig --list | grep -Ei 'network|wpa' ==
network           0:off   1:off   2:on   3:on   4:on   5:on   6:off
== END   chkconfig --list | grep -Ei 'network|wpa' ==

tuurtnt
 
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Joined: 2011/02/08 10:31:50

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