|
> > In the lvs_nat.conf, I had put in the alias eth0:1(I though
> the script
> > would do an ifconfig on the director to set-up the aliased
> interface).
>
> it should.
>
If the VIP is configured, then the script fails because it doesn't know
if it is a director or a realserver.
> > Is NOT using aliases a problem?
>
> this is probably it. I always have the VIP on an alias as I
> need an already
> functioning network to test connections before I set up the LVS. I've
> never tested it with the VIP on a non-alias.
>
> Is it OK to have an LVS with the VIP on an alias (at least in
> principle)?
>
OK. I'm using aliases now (configured in network-scripts and in the
lvs_nat.conf), but I'm still having 2 problems:
1) my default GW goes away when I run the rc.lvs_nat.
2) connections initiated from the realserver to clients outside the LVS
see the realsever's address and not the VIP.
> Can you tell me again what goes wrong if the VIP is on
> eth0:1? The rc.lvs_out file
> shows me that there is no aliased IP (eg eth0:1) in the
> output of ifconfig.
> It appears I don't have the whole picture yet.
>
I haven't sent you any files (rc.lvs_out)? I think Matthew sent you
files on Friday. But I am willing to at this point :-)
One of the original problems was that I configured interface eth1 with
address 10.136.60.121 and
set "VIP=eth1:121 10.139.60.121" in the lvs_nat.conf. This caused a
problem in the rc.lvs_nat because function remove_old_vip() compares the
device found in ifconfig for address 10.139.60.121 with the eth1:121 in
the config file. Since "eth1" != "eth1:121" then vip_warning...exit!
OK I think was my mistake, I shouldn't use eth1:121 in the config file
if my ifconfig for my VIP address is not an alias.
So I switched to use aliases, since that's what your used to.
Starting from scratch (and using aliases to mimic what you are used to):
My configuration is:
(LVS-NAT/ RH7.1 (ifconfig/route) / Kernel 2.4.17+IPVS 2.0.8 patches /
Configure 0.9.2)
This time I am using aliases for my VIP/DIP. Here is the ifconfig
(editted to omit stats) and netstat -rn after a clean reboot.
$ifconfig
eth0 Link encap:Ethernet HWaddr 00:D0:B7:B9:F9:7F
inet addr:192.168.1.10 Bcast:192.168.1.255
Mask:255.255.255.0
eth0:1 Link encap:Ethernet HWaddr 00:D0:B7:B9:F9:7F
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
eth1 Link encap:Ethernet HWaddr 00:D0:B7:B9:F9:7E
inet addr:10.139.60.127 Bcast:10.139.63.255
Mask:255.255.252.0
eth1:121 Link encap:Ethernet HWaddr 00:D0:B7:B9:F9:7E
inet addr:10.139.60.121 Bcast:10.139.63.255
Mask:255.255.252.0
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
$netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt
Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 40 0 0
eth0
10.139.60.0 0.0.0.0 255.255.252.0 U 40 0 0
eth1
127.0.0.0 0.0.0.0 255.0.0.0 U 40 0 0
lo
0.0.0.0 10.139.60.1 0.0.0.0 UG 40 0 0
eth1
NOTICE THE DEFAULT GW (it will soon disappear :-)
Network set-up (same as before):
# ________
# | |
# | client |
# |________|
# | clients in the 10.139.64 space
# |
# ________
# | |
# | router |
# |________|
# CIP=eth0 10.139.60.1 (this is actually a router)
# |
# |
# VIP=eth1:121 10.139.60.121/22
# __________
# | |
# | director | penguin1
# |__________|
# DIP=eth0:1 192.168.1.1
# |
# |
# |
# --------------------------------------------------
# | | | |
# | | | |
# RIP1=eth0 RIP2=eth0 RIP3=eth0 RIP4=eth0
# 192.168.1.2 192.168.1.3 192.168.1.4 192.168.1.5
# ______________ ______________ ___________ ___________
# | | | | | | | |
# | realserver1 | | realserver2 | | rs3 | | rs4 |
# |______________| |______________| |___________| |___________|
# penguin2 penguin3 penguin4 penguin5
########################
#/etc/hosts file:
########################
#VIP, the IP the clients connect to
10.139.60.121 penguin1
#
#DIP is the IP on the director in the real-server network
192.168.1.1 dip
#
#GW, my test client (actually a router to my clients)
10.139.60.1 client2
#
#real-servers
192.168.1.2 penguin2
192.168.1.3 penguin3
192.168.1.4 penguin4
192.168.1.5 penguin5
####################
#lvs_nat.conf file:
####################
LVSCONF_FORMAT=1.1
LVS_TYPE=VS_NAT
INITIAL_STATE=on
CLEAR_IPVS_TABLES=yes
VIP=eth1:121 penguin1 255.255.252.0 penguin1
DIP=eth0:1 dip 192.168.1.0 255.255.255.0 192.168.1.255
DIRECTOR_GW=client2
SERVICE=t 4300 rr penguin2:4300,1 penguin3:4300,1 penguin4:4300,1
penguin5:4300,1
SERVER_NET_DEVICE=eth0
#### end of lvs_nat.conf ####
Any ideas why I'm having the problems 1) and 2) as mentioned above?
smime.p7s
Description: S/MIME cryptographic signature
|
