I have configured LVS on cent os using piranha tool .I am using vip of internal n/w as gateway for real server we have two NIC one having exteranl Ip and other for internal n/w which is on 192.168.3.0/24 network.
But I am not able to connect from client it shows connection refused error
. Please suggest iptables rules for private n public n/w to communicate. May be I am missing this . Iptables rules that we have added are :
iptables -t nat -A POSTROUTING -p tcp -s 192.168.3.0/24 --sport 5000 -j MASQUERADE
this is my ipconfig:
eth0 Link encap:Ethernet HWaddr 00:00:E8:F6:74:DA
inet addr:122.166.233.133 Bcast:122.166.233.255 Mask:255.255.255.0
inet6 addr: fe80::200:e8ff:fef6:74da/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:94433 errors:0 dropped:0 overruns:0 frame:0
TX packets:130966 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:9469972 (9.0 MiB) TX bytes:19929308 (19.0 MiB)
Interrupt:16 Base address:0x2000
eth0:1 Link encap:Ethernet HWaddr 00:00:E8:F6:74:DA
inet addr:122.166.233.136 Bcast:122.166.233.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:16 Base address:0x2000
eth1 Link encap:Ethernet HWaddr 00:E0:20:14:F9:2D
inet addr:192.168.3.1 Bcast:192.168.3.255 Mask:255.255.255.0
inet6 addr: fe80::2e0:20ff:fe14:f92d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:123718 errors:0 dropped:0 overruns:0 frame:0
TX packets:148856 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:18738556 (17.8 MiB) TX bytes:11697153 (11.1 MiB)
Interrupt:17 Memory:60000400-600004ff
eth1:1 Link encap:Ethernet HWaddr 00:E0:20:14:F9:2D
inet addr:192.168.3.10 Bcast:192.168.3.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:17 Memory:60000400-600004ff
eth2 Link encap:Ethernet HWaddr 00:16:76:6E:D1:D2
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:21 Base address:0xa500
and ipvsadm -ln command
[root@abts-kk-static-133 ~]# ipvsadm -ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 122.166.233.136:5000 wlc
TCP 122.166.233.136:5004 wlc
lvs server routing table
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.3.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
122.166.233.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
169.254.0.0 0.0.0.0 255.255.0.0 U 1003 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 1004 0 0 eth1
0.0.0.0 122.166.233.1 0.0.0.0 UG 0 0 0 eth0
real 1
real 2
we have configured various ports from 5000:5008 .
Do we need to this iptables for all ports?
Suggest me how should I solve this issue.