The Anaconda installation program's rescue mode is a minimal Linux environment that can be booted from the Red Hat Enterprise Linux 7 (RHEL/CentOS) DVD or other boot media. It contains command-line ut...
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I would recommend you to get an overview of PKI and Certificates before generating or revoking certificates. In this article I will share the steps to revoke certificate from keystone and generate CRL
Read MorePKI Public Key Infrastructure (PKI) provides the means to establish trust by binding public keys and identities, thus giving reasonable assurance that we’re communicating securely with who we think w
Read MoreOpenVPN is often called an SSL-based VPN, as it uses the SSL/TLS protocol to secure the connection. However, OpenVPN server also uses HMAC in combination with a digest (or hashing) algorithm for ensur
Read MoreIn my last article I shared the steps to securely transfer files between two machines using HTTPS. Now I will share the steps to configure secure remote logging with rsyslog using TLS certificates in
Read MoreHow to configure apache http server to transfer files? Steps to configure apache HTTP server over TLS/SSL to transfer files. How to configure Apache server using TLS/SSL to upload and transfer file us...
Read MoreHow to run a shell script for 5 minutes in a while loop? How to loop a function to run for certain minutes and then exit? How to run a command in a shell script for few minutes and exit? Time conditio
Read MoreKerberos is used for authentication and the idea is that within Kerberos, a set of credentials is kept hence we will configure a Kerberized NFS Server. Kerberos will know about the NFS server, Kerbero
Read MoreIn my last article I shared the steps to restrict root user to access and modify respective files/directories and steps to perform SSH local and remote port forwarding in Linux. Now in this article I
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