Tag Archives: scalability

HAProxy, high mysql request rate and TCP source port exhaustion

Synopsys At Exceliance, we do provide professional services around HAPRoxy: this includes HAProxy itself, of course, but as well the underlying OS tuning, advice and recommendation about the architecture and sometimes we can also help customers troubleshooting application layer issues. … Continue reading

Posted in HAProxy, optimization, performance | Tagged , , , , | 1 Comment

Websockets load-balancing with HAProxy

Why Websocket ??? HTTP protocol is connection-less and only the client can request information from a server. In any case, a server can contact a client… HTTP is purely half-duplex. Furthermore, a server can answer only one time to a … Continue reading

Posted in Aloha, HAProxy, optimization | Tagged , , , , , , | 1 Comment

high performance WAF platform with Naxsi and HAProxy

Synopsis I’ve already described WAF in a previous article, where I spoke about WAF scalability with apache and modsecurity. One of the main issue with Apache and modsecurity is the performance. To address this issue, an alternative exists: naxsi, a … Continue reading

Posted in Aloha, architecture, HAProxy, security | Tagged , , , , , , , , , , , , | 3 Comments

Scalable WAF protection with HAProxy and Apache with modsecurity

Greeting to Thomas Heil, from our German partner Olanis, for his help in Apache and modsecurity configuration assistance. What is a Web Application Firewall (WAF)? Years ago, it was common to protect networks using a firewall… Well known devices which … Continue reading

Posted in Aloha, architecture, HAProxy, security | Tagged , , , , , , , , , | 6 Comments

How to get SSL with HAProxy getting rid of stunnel, stud, nginx or pound

Update: HAProxy can now handle SSL client certificate: SSL Client certificate management at application level History HAProxy is well know for its performance as a reverse-proxy and load-balancer and is widely deployed on web platforms where performance matters. It is sometimes … Continue reading

Posted in HAProxy, layer7, ssl | Tagged , , , , , , | 51 Comments