Security


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SELinux Security

SELinux is a set of security rules using which we can control the processes that can access specific files, folders and ports. These processes, files, folders and ports has a special security label called SELinux…


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Recover a Redhat 7 or CentOS 7 root password

There can be instances where you would had lost your root user’s passwords and thus cannot perform certain activities allowed only to the root user. The process of recovering the root password in Redhat/CentOS 7…


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Basic ACLs in Linux

ACL — Access Control List is a wonderful feature in linux that enables system administrators to add additional permissions on a linux folder or file. These permissions can be assigned to a user or group…



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Enabling security using .htaccess file

When working with web servers, and displaying contents, you may wish to restrict access to certain pages to only authenticated users. Which means one will require a password to view these restricted pages. Though there…


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Linux iptables as a Router

Netfilter : The actual filtering in a Linux box is done using Netfilter. Iptables : is the tool used to create this filters. Iptables maintain state-full firewall. Ipchains does not maintain state-full firewall The module…