Docker is a software layer that permits to run linux application inside isolated containers on an only shared system operating. This type of virtualization is lighter, portable, scalable and easy to manage: it is an good alternative to classical virtualization approach, like xen, kvm, vmware, where every virtual machine run with its own kernel and ..
Nginx is a robust and fast reverse proxy. Haproxy is a fast application load balancer. Together can be used for publishing to internet web services in security way. For this reason this article has the objective to explain how to secure web services using nginx and haproxy. The haproxy, in addition to application load balancer functionality, has a ..
This page contains all security vulnerabilities, updates and bulletins of 2016. 2016 Security Vulnerability Bulletins GRIZZLY STEPPE – Russian Malicious Cyber Activity 29/12/2016 Mozilla Releases Security Update 29/12/2016 FTC Releases Alert on Fake Apps for Mobile Devices 23/12/2016 Cisco Releases Security Updates 22/12/2016 VMWare Releases Security Updates 20/12/2016 Apple Releases Security Updates 15/12/2016 Joomla! Releases Security Update for CMS 15/12/2016 Mozilla Releases Security ..
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 ..
Test online your network services by ping, dig, nmap, sslscan and curl. ..
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 ..
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 ..