Hi. First of all i suggest to update the haproxy via rpm https://haproxy.hongens.nl/.
I don't think think that's possible but I can be wrong on this. Can't you use dns for this as a name is possible as server address. Regards Aleks -------- Ursprüngliche Nachricht -------- Von: Phani Gopal Achanta <phani.acha...@gmail.com> Gesendet: 23. August 2018 22:10:18 MESZ An: haproxy@formilux.org Betreff: HAProxy dynamic server address based off of variable I want to dynamically route to a server by making use of a request variable ssl_fc_sni. Is it possible to configure haproxy server statement to use a variable for server address and/or port? Example backend citest3bk_spice_default server compute1 %[ssl_fc_sni] ssl verify required crt server.pem ca-file ca.pem force-tlsv12 weight 0 Currently, I get an error parsing [/etc/haproxy/haproxy.cfg:157] : 'server compute1' : invalid address: '%[ssl_fc_sni]' in '%[ssl_fc_sni]' I am running on Centos 7.5 with HAProxy 1.5.18 Thanks Phani