ssh and ping is not working on both real_server machines. I can't do
"ping 192.168.0.4" or ssh into real_server machines. I haven't turn
on the linux_director yet. After I followed the instructions on
http://www.ultramonkey.org/3/topologies/hc-ha-lb-eg.html, and rebooted
the real_server machine, and tried ssh, and got this:
[me@localhost ~]$ ssh me@xxxxxxxxxxx
ssh: connect to host 192.168.0.4 port 22: No route to host
Right now I have omitted setup info on linux_director.
My setup for High Capacity High Availability and Load Balancing:
Gateway_IP_Address: 192.168.0.1
virtual_IP_Address: 192.168.0.240
Linux_Director_1: 192.168.0.2
Real_Server_1: 192.168.0.4
Real_Server_2: 192.168.0.5
On my real servers, my setup is like this:
Real Server1 (for Real_server2, I replace below content that have
192.168.0.4 with 192.168.0.5):
[root@localhost me]# /sbin/arptables -L -v -n
Chain IN (policy ACCEPT 9 packets, 252 bytes)
pkts bytes target in out source-ip
destination-ip source-hw destination-hw hlen op
hrd pro
0 0 DROP * * 0.0.0.0/0
192.168.0.240 00/00 00/00 any
0000/0000 0000/0000 0000/0000
Chain OUT (policy ACCEPT 18 packets, 504 bytes)
pkts bytes target in out source-ip
destination-ip source-hw destination-hw hlen op
hrd pro
0 0 mangle * eth0 192.168.0.240 0.0.0.0/0
00/00 00/00 any 0000/0000
0000/0000 0000/0000 --mangle-ip-s 192.168.0.4
Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target in out source-ip
destination-ip source-hw destination-hw hlen op
hrd pro
Configured Loopback Interface:
/etc/sysconfig/network-scripts/ifcfg-lo:0:
DEVICE=lo:0
IPADDR=192.168.0.240
NETMASK=255.255.255.255
NETWORK=192.168.0.0
BROADCAST=192.168.0.255
ONBOOT=yes
NAME=loopback
Default Route:
/etc/sysconfig/network-scripts/ifcfg-eth0:
DEVICE=eth0
BOOTPROTO=static
IPADDR=192.168.0.4
NETMASK=255.255.255.0
NETWORK=192.168.0.0
BOARDCAST=192.168.0.255
#GATEWAY=192.168.0.3
GATEWAY=192.168.0.1
HWADDR=00:45:25:24:46:EF
ONBOOT=yes
If I do ifconfig, I get the following:
[root@localhost me]# /sbin/ifconfig
eth0 Link encap:Ethernet HWaddr 00:45:25:24:46:ef
inet addr:192.168.0.4 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: ee80::203:25ad:cc42:46da/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:50 errors:0 dropped:0 overruns:0 frame:0
TX packets:72 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:13486 (13.1 KiB) TX bytes:10340 (10.0 KiB)
Interrupt:17
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:9590 errors:0 dropped:0 overruns:0 frame:0
TX packets:9590 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:69607264 (66.3 MiB) TX bytes:69607264 (66.3 MiB)
lo:0 Link encap:Local Loopback
inet addr:192.168.0.240 Mask:255.255.255.255
UP LOOPBACK RUNNING MTU:16436 Metric:1
Why does lo:0 has only three lines as comapred to other ones?
thanks.
|