Posted inHow tos Linux Miscellaneous
Linux – run a scheduled job once
Linux - run a scheduled command once When we think of running scheduled tasks in Linux, the first…
Posted inContainers How tos Linux
Ansible non standard ssh port
How to run playbooks against a host running ssh on a port other than port 22. Ansible is…
VMware – add scsi virtual disk on a running Linux VM without rebooting
How to add a disk to a running VM This tutorial will show you how to make Vmware…
Restore original files from RPM package
How to get the original file from an RPM. You might have accidentally deleted a configuration or binary…
tcpdump – capture output in real time
tcpdump - how to grep or save output in real time Tcpdump is a handy tool for capturing…
Redhat satellite / Spacewalk – automatically patch clients
Redhat satellite or Spacewalk - real time push to clients. By default, a client waits for a set…
Logical volume management – shrink an LVM
Reduce or shrink the size of non root LVM mount. In a system with limited disk size, you…
SSL certificate expiration date for a site or domain
When will the SSL certificate for a site expire or in how many days will an SSL certificate…
Posted inLinux Miscellaneous
yum : show all yum directives
yum - dump all yum repos configuration directives Per the man page, the yum-config-manager is "a program that…
Posted inContainers How tos Linux
Docker – quick introduction. Part 2
In part 1 of this series, we saw how to pull Docker images from Docker Hub and launch…