How do I enable FirewallD logging for denied packets on Linux operating systems so that I can view all dropped packets information? How can I view a log of the traffic blocked by FirewallD under a CentOS/RHEL (Red Hat Enterprise Linux)/Suse/OpenSUSE Linux?
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I am getting the following warning on both CentOS 7 and RHEL (Red Hat) 7 when I run
yum command:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.What is delta RPM (DRPM) and how does it differ from RPM? How do I fix this issue on a CentOS or RHEL 7 server/desktop?
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I need to disable SELinux on CentOS 7. How can I disable SELinux from the command line over ssh based session?
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I have image.qcow2 file. How do I install the qcow2 image provided in the qcow2 format? How do I create Linux KVM VM from provided image (say image.qcow2) file?
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I want to run a shell script or other program immediately after my network interface goes up on a CentOS 7 / RHEL 7 server. I created /sbin/ifup-local, but it is not working on a CentOS 7 box but works perfectly on CentOS 6. I am using NetworkManager with CentOS 7. How do I run ifup-post or ifup-pre scripts?
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How do I install and configure KVM (Kernel-based Virtual Machine) on a CentOS 7 or RHEL (Red Hat Enterprise Linux) 7 server? How can I setup KVM on a CentOS 7 and use cloud images/cloud-init for installing guest VM?
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How do I secure my Nginx web server with Let’s Encrypt free ssl certificate on my CentOS 7 or RHEL 7 server? How to configure Nginx with Let’s Encrypt on CentOS 7 server?
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