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Lynis – Security Tool for Audit Linux / Unix Systems

GIT – System administrator must have known about the importance of security. Maintaining servers are not just make the server is up and running but it should be secure too. Security is not coming by default. We need to tune-up the systems to fit our needs. Since security has a wide coverage, sometimes its easy […]

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Find / Patch Shellshock Bash Bug in RedHat / CentOS, Fedora & Ubuntu

GIT – Stephane Schazelas has recently discovered a very serious security bug in GNU Bourne Again Shell (Bash) that allows attackers to exploit a machine by executing remote code. Shellshock (the name for this security bug) can cause serious problems to your system because it makes possible to trick bash into running a program that […]

Góc Bảo Mật Góc Linux - Unix Góc Redhat - CentOS

Firewalld – How to Dynamically Manage Firewall in RHEL/CentOS 7.0

Fedora 17/RHEL/CentOS 7 introduces a new firewall daemon called FirewallD, a dynamically managed firewall that supports zones to define the trust level of network connections or interfaces. Because FirewallD runs as a daemon it also allows rules to be added instantly without the need of a complete firewall (iptables) restart that can cause breaking stateful firewalling […]