Hi I m Cisco certified network and security engineer hands on experience on firewall as well proxies devices Namely Cisco asa checkpoint palo alto to name few.
Server Solutions:
-Experienced in installing, configuring, and administering all Linux and Windows Ldap CentOS, Redhat, Debian, Ubuntu Servers
-Expert in Apache, Nginx, DNS, Shell Scripting, WHMCS, Puppet, Vmware,mail, ftp, proxy, socks -Specialist in Migration of servers without any down time.
Clients worked for HCL, Electorlux, Direct Energy, TEN, Oxford University Press,Accenture,IBM to name few.
As per your requirement Setting Up A High-Availability Load Balancer (With Failover and Session Support) With HAProxy/Heartbeat On Debian) Steps are below
Preparing The Backend Web Servers
Installing HAProxy
Configuring The Load Balancers
and then there will be load balancing configuration like
Setting the cookie name
Address of the dispatch server (deprecated)
Connections expiration time
HTTP mode
Autonomous load balancer
There will be lot of configuration which i cannot explain however if we can do a little chat we can understand and proceed further.