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Network configuration problem with NAT and OpenVZ

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Hi !

I have a server with Proxmox. I have an OpenVZ configuration with many VE with NAT.
But I have a problem with my network configuration !

We have an Apache on a VE (prod-web-1) and I can't get access to a domain (tutu.fr for example) hosted on this VE (using the public IP A.B.C.D) from this VE :
Code:

root@prod-web-1:~# telnet tutu.fr 80
Trying A.B.C.D...

It's ok when we use localhost or private ip of the VE (192.168.0.101) :
Code:

root@prod-web-1:~# telnet localhost 80
Trying ::1...
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.

Code:

root@prod-web-1:~# telnet 192.168.0.101 80
Trying 192.168.0.101...
Connected to 192.168.0.101.
Escape character is '^]'.


It works from the node (tanenbaum) :
Code:

root@tanenbaum:~# telnet tutu.fr 80
Trying A.B.C.D...
Connected to tutu.fr.
Escape character is '^]'.

and from others VE (prod-bdd-1 for example) :
Code:

root@prod-bdd-1:~# telnet tutu.fr 80
Trying A.B.C.D...
Connected to tutu.fr.
Escape character is '^]'.

My configuration :

NAT :
Code:

root@tanenbaum:~# iptables -L -v -t nat
Chain PREROUTING (policy ACCEPT 69 packets, 4311 bytes)
 pkts bytes target    prot opt in    out    source              destination
  86  4584 DNAT      tcp  --  any    any    anywhere            srv1.toto.fr      tcp dpt:http to:192.168.0.101:80
    0    0 DNAT      tcp  --  eth0  any    anywhere            srv1.toto.fr      tcp dpt:ftp to:192.168.0.101:21
    0    0 DNAT      tcp  --  eth0  any    anywhere            srv1.toto.fr      tcp dpts:4242:4300 to:192.168.0.101

Chain POSTROUTING (policy ACCEPT 247 packets, 27946 bytes)
 pkts bytes target    prot opt in    out    source              destination
  13  819 SNAT      all  --  any    any    192.168.0.0/24      !192.168.0.0/24      to:A.B.C.D

Chain OUTPUT (policy ACCEPT 117 packets, 20722 bytes)
 pkts bytes target    prot opt in    out    source              destination
    0    0 DNAT      tcp  --  any    any    anywhere            srv1.toto.fr      tcp dpt:http to:192.168.0.101:80
    0    0 DNAT      tcp  --  any    any    anywhere            srv1.toto.fr      tcp dpt:ftp to:192.168.0.101:21
    0    0 DNAT      tcp  --  any    any    anywhere            srv1.toto.fr      tcp dpts:4242:4300 to:192.168.0.101

Filter :
Code:

root@tanenbaum:~# iptables -L -v
Chain INPUT (policy DROP 3 packets, 152 bytes)
 pkts bytes target    prot opt in    out    source              destination
  44  3710 ACCEPT    all  --  lo    any    anywhere            anywhere
  437 34317 ACCEPT    all  --  any    any    anywhere            anywhere            state RELATED,ESTABLISHED
    0    0 ACCEPT    tcp  --  any    any    anywhere            anywhere            tcp dpt:https state NEW
    0    0 ACCEPT    tcp  --  any    any    anywhere            anywhere            tcp dpt:6984 state NEW
    0    0 ACCEPT    tcp  --  eth0  any    cache.ovh.net        anywhere            tcp dpt:ssh
    0    0 ACCEPT    tcp  --  any    any    anywhere            anywhere            tcp dpt:8006 state NEW
  12  952 ACCEPT    icmp --  any    any    anywhere            anywhere
    0    0 ACCEPT    tcp  --  any    any    torvalds.toto.fr  anywhere            tcp dpt:mysql state NEW
    0    0 ACCEPT    all  --  any    any    192.168.0.0/24      anywhere

Chain FORWARD (policy DROP 0 packets, 0 bytes)
 pkts bytes target    prot opt in    out    source              destination
15265 9481K ACCEPT    all  --  any    any    192.168.0.0/24      anywhere
 1714  568K ACCEPT    all  --  any    any    anywhere            192.168.0.0/24

Chain OUTPUT (policy ACCEPT 156 packets, 26429 bytes)
 pkts bytes target    prot opt in    out    source              destination
  44  3710 ACCEPT    all  --  any    lo      anywhere            anywhere
  415  156K ACCEPT    all  --  any    any    anywhere            anywhere            state RELATED,ESTABLISHED


Ip forwarding is enabled :
Code:

root@tanenbaum:~# cat /proc/sys/net/ipv4/ip_forward
1

Network configuration :
Code:

root@tanenbaum:~# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
        address E.F.G.H
        netmask 255.255.255.0
        network E.F.G.0
        broadcast E.F.G.255
        gateway E.F.G.254
        # IP Failover
        post-up /sbin/ifconfig eth0:0 A.B.C.D netmask 255.255.255.255 broadcast A.B.C.D
        post-down /sbin/ifconfig eth0:0 down
        post-up /sbin/ifconfig eth0:1 192.168.0.1 netmask 255.255.255.0 broadcast 192.168.0.255
        post-down /sbin/ifconfig eth0:1 down

The routing table from the node :
Code:

root@tanenbaum:~# route
Table de routage IP du noyau
Destination    Passerelle      Genmask        Indic Metric Ref    Use Iface
prod-infra-1    *              255.255.255.255 UH    0      0        0 venet0
bck-bdd-1      *              255.255.255.255 UH    0      0        0 venet0
prod-bdd-1      *              255.255.255.255 UH    0      0        0 venet0
prod-mail-1    *              255.255.255.255 UH    0      0        0 venet0
prod-web-1      *              255.255.255.255 UH    0      0        0 venet0
E.F.G.0    *              255.255.255.0  U    0      0        0 eth0
default        E.F.G.254  0.0.0.0        UG    0      0        0 eth0

I tried a lot of things but I'm still not able to have a full access to my sites from my Apache VE (prod-web-1) :(
Do you have an idea ?

Thanks !
Romain

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