two dsl connections, two routers, dual nics on linux box , want to run two websites

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  • 1. add route pass traffic
    Hello All, I have 2 servers, server A and B and I would like to add a route to serverA that will pass all traffic from serverB to one if serverA's interfaces ? Not sure of the syntax though...Any suggestions please... Thanks,
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two dsl connections, two routers, dual nics on linux box , want to run two websites

Postby laitkor » Mon, 21 Jun 2004 03:58:19 GMT

Hello,

I have two dsl connections, with one public ip on each. I have a linux
box with two nic cards.

xx.xx.xx.xx(WAN)---ROUTER(LAN23.123.45.110) ---- MYLINUX
(23.123.45.107) eth1
yy.yy.yy.yy(WAN)---ROUTER(LAN192.182.1.1)   ---- MYLINUX
(192.168.1.100) eth0

I have apache listening on both interfaces. 

Problem:

1. How do I make the packets route back to the gateway from which they
originate.

Currently the gateway marked as "default" is able to serve content
from the apache. The other one cannot.

I tried adding static routes, but that didn't work.

Any help is appreciated.

Thanks
Jay

---------------------------------------------------------------------
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref   
Use Iface
adsl-23-123-45- adsl-23-123-45- 255.255.255.255 UGH   0      0       
0 eth1
23.123.45.0     *               255.255.255.0   U     0      0       
0 eth1
192.168.1.0     *               255.255.255.0   U     0      0       
0 eth0
loopback        *               255.0.0.0       U     0      0       
0 lo
default         192.168.1.1     0.0.0.0         UG    1      0       
0 eth0


eth0      Link encap:Ethernet  HWaddr 00:0D:87:57:A0:DE
          inet addr:192.168.1.100  Bcast:192.168.1.255 
Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3060612 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3577217 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:1566982235 (1494.3 Mb)  TX bytes:1126616733 (1074.4
Mb)
          Interrupt:11 Base address:0xe000

eth1      Link encap:Ethernet  HWaddr 00:40:05:39:0E:EA
          inet addr:23.123.45.107  Bcast:68.123.24.255 
Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:90635 errors:0 dropped:0 overruns:0 frame:0
          TX packets:31082 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:23017102 (21.9 Mb)  TX bytes:13283751 (12.6 Mb)
          Interrupt:11 Base address:0xe000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:11888 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11888 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:6920794 (6.6 Mb)  TX bytes:6920794 (6.6 Mb)

Re: two dsl connections, two routers, dual nics on linux box , want to run two websites

Postby Snowbat » Mon, 21 Jun 2004 04:27:49 GMT





 http://www.**--****.com/ 

Similar Threads:

1.Two NICs, Two networks, secure websites

Hi!

I have a Cisco router (provided by the ISP) that offers 29 usable IP's.
 One of the public IP's is set to be the WAN IP of a simple SOHO
Linksys router that then creates a private network 192.168.1.0.  There
is a Linux server with Apache on the private network.  Port forwarding
on the Linksys router allows SSL access to secure web pages,
unencrypted HTTP, SSH, etc. to the Linux server.  This all is working
OK.

I need to have a 2nd SSL site running on the same Linux server.  So, I
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of the available public IP's.  I cannot connect to the new public IP
(via the new NIC), but can still connect to everything described in the
1st paragraph above.

I can ping out each of the interfaces (e.g. ping -I eth0 yahoo.com  and
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Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
AAA.BBB.CCC.160 *               255.255.255.224 U     0      0        0
eth1
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On the server, I can do   lynx https://192.168.1.2 and lynx
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>From outside of the server, https://AAA.BBB.CCC.163 works now, but
https://AAA.BBB.CCC.164 does not.  What needs to be done to allow
https://AAA.BBB.CCC.164 to work?  And/or, what can I do to troubleshoot
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eth0      Link encap:Ethernet  HWaddr 00:40:F4:E9:3F:3D
          inet addr:192.168.1.2  Bcast:192.168.1.255
Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:6335 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5026 errors:0 dropped:0 overruns:0 carrier:0
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          RX bytes:1373872 (1.3 Mb)  TX bytes:2199390 (2.0 Mb)
          Interrupt:16 Base address:0xf000

eth1      Link encap:Ethernet  HWaddr 00:0C:76:B4:CA:82
          inet addr:AAA.BBB.CCC.164  Bcast:AAA.BBB.CCC.191
Mask:255.255.255.224
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
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          TX packets:2133 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:100305 (97.9 Kb)  TX bytes:166007 (162.1 Kb)
          Interrupt:21 Base address:0x1000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:209 errors:0 dropped:0 overruns:0 frame:0
          TX packets:209 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:22394 (21.8 Kb)  TX bytes:22394 (21.8 Kb)


Thanks!

2.Forwarding of multicast packets between two subnets with two NICS - Does not work

WHY DO I NOT GET ANY REPLY FROM A DIFFERENT SUBNET? WHY ARENT
IGMP/MULTICAST PACKETS BEING FORWARDED THROUGH THE LINUX BOX?

Here is my setup:

                               Linux Box with two NICS
PC1         router          NIC(eth0)---NIC(eth1)          router
 PC2
192.168.1.100 192.168.1.1 192.168.1.111 192.168.4.114 192.168.4.1
192.168.4.100


Linux Box:
---------
/proc/sys/net/ipv4/ip_forward


PC1
----
ping 192.168.4.1 - works
ping 224.0.0.1 - only get reply from 192.168.1.1 and 192.168.1.111


PC2
----
ping 192.168.4.1 - works
ping 224.0.0.1 - only get reply from 192.168.4.1 and 192.168.1.114

WHY DO I NOT GET ANY REPLY FROM A DIFFERENT SUBNET? WHY ARENT
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3.Connecting two networks with two linux boxes.

I have 2 networks each with a linux box as the gateway to the internet.

At the moment they are VPN'd together, but are close enough to get a 
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so each linux box will have 3 nics in it.

My question is possibly a dumb one! But what should the IP for the 3rd 
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The networks are:
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Box 1) 10.0.12.x/24 	- 	10.0.12.1
Box 2) 192.168.12.x/24 - 	192.168.12.1

Should the 3rd NIC in the box 1 be on the 192.168.12.x range, and vice 
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Should they both be on a different range althogether? And then set the 
routing up on each.

ie 3 NICS in each
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Box2
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If it was 2 networks with one linux box it would be easy, just not sure 
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Any advice appreciated!

Cheers

Mark

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