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On Wed, 11 Oct 2000, Shaun McCullagh wrote:
> Hi,
>
> I'm trying a very simple LVS/NAT config with one LVS Router and one Real
> Server.
nanny etc are RedHat products. They use LVS which is what this mailing
list is about. Some people here have tried the RH programs and may be able
to help you. The best people to go to are RH
Joe
>
> Pulse starts up fine, and nanny gets the output from uptime on the real
> server. The client browser can ping all the interfaces on both router
> and the real server.
>
> The problem is the client browser cannot retrieve any data from the
> virtual server.
>
> Tcpdump shows some data is exchanged, but nothing shows up in the apache
> log on the real server when the client requests a page via the virtual
> server running on the LVS router.
>
> The client browser can access the real server directly.
>
> Any help would be greatly appreciated
>
> TIA
>
> ________
> | |
> | client | 192.168.31.101/24
> |________|
> |
> |
> |
> |
> vs1 192.168.31.157/24 (eth0:1)
> 192.168.31.148/24 (eth0)
> __________
> | |
> | lvsmain | VA Linux 2130, 2.2.14
> |__________|
> 192.168.100.1(eth1)
> NAT Router 192.168.100.254 (eth1:1)
> |
> (switch)
> |
> |
> s3 = 192.168.100.5 (eth0)
> ____________
> | |
> | realserver | VA Linux, 2.2.14.
> |____________| default gw, 192.168.100.254
>
> ========================== lvs.cf
> ============================================
>
> primary = 192.168.31.148
> service = lvs
> rsh_command = ssh
> keepalive = 2
> deadtime = 10
> network = nat
> nat_router = 192.168.100.254 eth1:1
> virtual vs1 {
> active = 1
> address = 192.168.31.157 eth0:1
> port = 80
> load_monitor = uptime
> scheduler = wlc
> protocol = tcp
> timeout = 10
> reentry = 180
>
> server s3 {
> address = 192.168.100.5
> active = 1
> weight = 1000
> }
> }
> =======================================================================
>
> Output from netstat, ipchains and ipvsadm
>
> [root@fizz /root]# /sbin/ipvsadm
> IP Virtual Server version 0.9.8 (size=4096)
> Prot LocalAddress:Port Scheduler Flags
> -> RemoteAddress:Port Forward Weight ActiveConn InActConn
> TCP C0A81F9D:0050 wlc
> -> C0A86405:0050 Masq 10000 0 0
>
> [root@fizz /root]# ipchains -L -n
> Chain input (policy ACCEPT):
> Chain forward (policy ACCEPT):
> target prot opt source destination
> ports
> MASQ all ------ 192.168.100.0/24 0.0.0.0 n/a
> Chain output (policy ACCEPT):
>
> [root@fizz /root]# netstat -M
> IP masquerading entries
> prot expire source destination ports
> tcp 0:55.93 s3.information-innovation.com
> io.information-innovation.com www -> 1344 (www)
>
> [root@fizz /root]# lsmod
> Module Size Used by
> ip_vs_wlc 1012 1 (autoclean)
>
> ========================================================================
>
> --
> Shaun McCullagh
> Senior Unix Administrator
> Information Innovation B.V.
> Amstelveenseweg 88 - 90
> 1075 XJ Amsterdam
> tel: +31 20 589 5595
> fax: +31 20 589 5566
> email: smccullagh@xxxxxxxxxxxxx
> url: http://www.goldridge.net/
>
>
>
--
Joseph Mack mack@xxxxxxxxxxx
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