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Category Archives: architecture
Client IP persistence OR source IP hash load-balancing?
Client or Source IP ??? Well, this is roughly the same! Depends on people, environment, products, etc… I may use both of them in this article, but be aware that both of them points to the IP that is being … Continue reading
Microsoft Remote Desktop Services (RDS) Load-Balancing and protection
RDS, RDP, TSE, remoteapp Whatever you call it, it’s the remote desktop protocol from Microsoft, which has been renamed during the product life. Basically, it allows users to get connected on remote server and run an application or a full … Continue reading
Posted in Aloha, architecture, security, Virtual Desktop Infrastructure
Tagged dos, infrastructure, rds, vdi
4 Comments
SSL offloading impact on web applications
SSL Offloading Nowadays, it is common (and convenient) to use the Load-Balancer SSL capabilities to cypher/uncypher traffic from clients to the web application platform. Performing SSL at the Load-Balancer Layer is called “SSL offloading“, because you offload this process from … Continue reading
Posted in Aloha, architecture, HAProxy, ssl
Tagged layer7, reverse-proxy, rewrite rule, ssl
4 Comments
Microsoft Exchange 2013 architectures
Introduction to Microsoft Exchange 2013 There are 2 types of server in Exchange 2013: * Mailbox server * Client Access server Definitions from Microsoft Technet website: * The Client Access server provides authentication, limited redirection, and proxy services, and offers … Continue reading
Posted in Aloha, architecture, exchange, Exchange 2013, layer4, layer7
Tagged exchange 2010, exchange 2013, high-availability, infrastructure, layer4, layer7, reverse-proxy
3 Comments
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 content switching, ddos, dos, ecommerce, haproxy, high-availability, infrastructure, layer7, naxsi, nginx, performance, reverse-proxy, scalability
3 Comments
