71Linux
Sort IP addresses numerically
A novice user's first attempt to sort a list of IP addresses would be to use 'sort -n', that is a numeric-sort option for sort command. Unfortunately, this will sort
2 min read↗
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130 ARTICLES
72Linux
Setup your own self signed Certificate Authority (CA)
How to be your own Certificate Authority(CA) with self signed certificates
3 min read↗
73Linux
Server refused to allocate pty
Server refused to allocate pty : pseudoterminal in use reached maximum allowed limit.
2 min read↗
74Linux
AIDE installation and setup
AIDE is a host-based file and directory integrity checking tool, similar to Tripwire. It creates a snapshot of file details during initialization and stores them in
1 min read↗
75Linux
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↗
76Linux
Ansible non standard ssh port
How to run playbooks against a host running ssh on a port other than port 22.
2 min read↗
77Linux
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↗
78Linux
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↗
79Linux
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↗
80Linux
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↗