Google cloud platform – NEXT 2017
As of the beginning of 2017, Amazon Web Services(AWS) is the leader in Cloud based infrastructure as a service(IAS), followed by Microsoft. The cloud business is sti
1 min read↗
AUTHOR ARCHIVE
Articles by daniel.
Practical knowledge, one discovery at a time.
171 ARTICLES
92Linux
Linux – run a scheduled job once
When we think of running scheduled tasks in Linux, the first tool which comes to mind to most Linux users and admins is cron. Cron is very popular and useful when yo
3 min read↗
93Linux
Ansible non standard ssh port
How to run playbooks against a host running ssh on a port other than port 22.
2 min read↗
94Linux
VMware – add scsi virtual disk on a running Linux VM without rebooting
This tutorial will show you how to make Vmware autodetect a new virtual disk in a running Linux VM without rebooting it.
5 min read↗
95Linux
Restore original files from RPM package
You might have accidentally deleted a configuration or binary file which was installed as part of a package OR may be you modified the original file and you want to
3 min read↗
96Linux
tcpdump – capture output in real time
Tcpdump is a handy tool for capturing network packets. It will keep on capturing packets until it receives a SIGINT or SIGTERM signal, or the specified number of pac
2 min read↗
97Linux
Redhat satellite / Spacewalk – automatically patch clients
By default, a client waits for a set of interval (minutes) configured in /etc/sysconfig/rhn/rhnsd to pull scheduled tasks from satellite server. For instance, if a r
2 min read↗
98Linux
Logical volume management – shrink an LVM
In a system with limited disk size, you might run out of disk space in one LVM mount while having plenty of space in another mount. If both LVMs are in the same volu
2 min read↗
99Linux
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 expire?
3 min read↗
100Linux
yum : show all yum directives
Per the man page, the yum-config-manager is "a program that can manage main yum configuration options, toggle which repositories are enabled or disabled, and add new
3 min read↗