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I am testing a basic lvs/ipvsadm implementation.

  1. 192.168.1.200 is the Loadbalance Director (Master LB), At the moment I am not testing a VIP.

1.1 enabled sysctl -w net.ipv4.ip_forward=1 in the Loadbalance Director

1.2 firewall-cmd --permanent --add-port=80/tcp

1.3

ipvsadm -A -t 192.168.1.200:80 -s rr

ipvsadm -a -t 192.168.1.200:80 -r 192.168.1.201:80 -g

ipvsadm -a -t 192.168.1.200:80 -r 192.168.1.202:80 -g

Test Results

[root@lb ~]# ipvsadm -Lnc IPVS connection entries pro expire state source virtual destination TCP 00:53 SYN_RECV 192.168.1.200:35416 192.168.1.200:80 192.168.1.201:80 TCP 00:42 SYN_RECV 192.168.1.200:35410 192.168.1.200:80 192.168.1.202:80

  1. 192.168.1.201 - Real Server 1 --> Apache server is running on port 80

2.1 firewall-cmd --permanent --add-port=80/tcp

2.2 echo 2 > /proc/sys/net/ipv4/conf/enp0s3/rp_filter

  1. 192.168.1.202 - Real Server 2 --> Apache server is running on port 80

3.1 firewall-cmd --permanent --add-port=80/tcp

3.2 echo 2 > /proc/sys/net/ipv4/conf/enp0s3/rp_filter

However when I am testing from a external client and the LB director itself, I don't get the real servers pages. curl request is hang.

May I check with you, what I have done wrongly or what configurations i have not done to achieve the basic implementation?

Thanks in Advance Luke

0 Answers0