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On Tue, 21 Nov 2006, Davin Menhinck wrote:
Hi, I am having trouble getting LVS NAT to work on my OSS 10.0. When I
try to connect to my virtual webserver IP i get a timeout error.
what do you see when using the telnet client?
what's the output of `ipvsadm` immediately after you try to
connect?
Seems
like the problem is NAT because I can get it to work fine without it.
what's "it" and "it"?
I just followed this howto at
http://www.howtoforge.com/high_availability_loadbalanced_apache_cluster
and everthing works fine.
what does "everything works fine" mean?
Unfortunately I don't have enough public IPs
to spare, so I need to get NAT working.
the realservers shouldn't have public IPs at all. The only
public IP needed is the VIP. (This isn't one of our HOWTOs,
so I don't know what's in it). Have you gone through the
check list for non-working LVS's in the LVS-mini-HOWTO?
Joe
Software Info:
Suse OSS 10.0
Kernel 2.6.13
Heartbeat 2.0.0
Server IP info:
loadb1
IPaddr1 eth0 192.168.30.100/24
IPaddr2 eth1 XXX.XXX.XXX.189/28
loadb2
IPaddr1 eth0 192.168.30.101/24
IPaddr2 eth1 XXX.XXX.XXX.188/28
webserver1
IPaddr1 eth0 192.168.30.110/24
webserver2
IPaddr2 eth0 192.168.30.111/24
Config files
ha.cf:
logfacility local0
bcast eth0 # Linux
mcast eth0 225.0.0.1 694 1 0
auto_failback off
node loadb1
node loadb2
respawn hacluster /usr/lib/heartbeat/ipfail
apiauth ipfail gid=haclient uid=hacluster
haresourses:
loadb1 \
ldirectord::ldirectord.cf \
LVSSyncDaemonSwap::master \
IPaddr2::XXX.XXX.XXX.190/28/eth1 \
IPaddr2::192.168.30.105/24/eth0
ldirectord.cf:
checktimeout=10
checkinterval=2
autoreload=no
logfile="local0"
quiescent=yes
virtual=XXX.XXX.XXX.190:80
real=192.168.30.110:80 masq
real=192.168.30.111:80 masq
fallback=127.0.0.1:80
service=http
request="ldirector.html"
receive="Test Page"
scheduler=rr
protocol=tcp
checktype=negotiate
Output of tcpdump on webserver:
webserver1:~ # tcpdump host 41.240.84.137
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
16:38:12.894836 IP 41.240.84.137.sso-control > webserver1.site.http: S
2135481172:2135481172(0) win 65535 <mss 1440,nop,nop,sackOK>
16:38:27.908046 IP webserver1.site.http > 41.240.84.137.sso-control: S
311867283:311867283(0) ack 2135481173 win 5840 <mss
1460,nop,nop,sackOK>
16:38:15.736403 IP 41.240.84.137.sso-control > webserver1.site.http: S
2135481172:2135481172(0) win 65535 <mss 1440,nop,nop,sackOK>
16:38:15.736459 IP webserver1.site.http > 41.240.84.137.sso-control: S
311867283:311867283(0) ack 2135481173 win 5840 <mss
1460,nop,nop,sackOK>
16:38:16.895205 IP webserver1.site.http > 41.240.84.137.sso-control: S
311867283:311867283(0) ack 2135481173 win 5840 <mss
1460,nop,nop,sackOK>
16:38:21.770180 IP 41.240.84.137.sso-control > webserver1.site.http: S
2135481172:2135481172(0) win 65535 <mss 1440,nop,nop,sackOK>
16:38:21.770237 IP webserver1.site.http > 41.240.84.137.sso-control: S
311867283:311867283(0) ack 2135481173 win 5840 <mss
1460,nop,nop,sackOK>
16:38:22.895586 IP webserver1.site.http > 41.240.84.137.sso-control: S
311867283:311867283(0) ack 2135481173 win 5840 <mss
1460,nop,nop,sackOK>
16:38:34.896352 IP webserver1.site.http > 41.240.84.137.sso-control: S
311867283:311867283(0) ack 2135481173 win 5840 <mss
1460,nop,nop,sackOK>
16:38:59.097893 IP webserver1.site.http > 41.240.84.137.sso-control: S
311867283:311867283(0) ack 2135481173 win 5840 <mss
1460,nop,nop,sackOK>
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--
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!
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