Category : Network

 

 Kerberos is the protocol most used in modern authentication system. Active Directory and other Identity management (like freeipa) use it for offer a single sign-on authentication method. Of course a good kerberos understanding is necessary by system administrator. Give an answer to this need is the scope of this article. All the examples have been implemented in ..

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 In this article I show three different reverse proxy architectures based on nginx for implementing a high availability reverse proxy environment. As load balancer two different solutions are proposed: one with haproxy, an application load balancer; another with keepalived, a layer 3 load balancer. Before starting, let me explain what is a reverse proxy. Reverse proxy is a proxy ..

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 TCP protocol is the heart of internet. Good tcp understanding is basic requirement for system and network administrators for resolving fastly network problems. Why do we receive RST? Why is the connection in time out? The server is down or the traffic is blocked by firewall? Is there some routing asymmetric? We can fastly answer with ..

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