Tag Archives: haproxy

Configure syslog-ng to log readable HTTP URL from HAProxy

This tips is provided by Exosec, ex Exceliance mother company. Exosec provides a very good monitoring product called POM, based on Nagios with very strong value added such as very simple administration, application monitoring, etc… For some of their project, … Continue reading

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Mitigating the SSL Beast attack using the ALOHA Load-Balancer / HAProxy

The beast attack on SSL isn’t new, but we have not yet published an article to explain how to mitigate it with the ALOHA or HAProxy. First of all, to mitigate this attack, you must use the Load-Balancer as the … Continue reading

Posted in Aloha, exchange 2010, Exchange 2013, HAProxy, security, ssl | Tagged , , , | Leave a comment

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

HAProxy log customization

Synopsis One of the strength of HAProxy is its logging system. It is very verbose and provides many information. HAProxy HTTP log line is briefly explained in an Exceliance memo. It’s a must have document when you have to analyze … Continue reading

Posted in HAProxy, layer7, performance | Tagged , , , , , , | 2 Comments