After spending a few hours on developing some scripts, I hastily fat-fingered a command and removed my entire scripts directory on my RHEL 7 server.……
Synergy is a popular software that shares one mouse and one keyboard between multiple computers. The set up is straightforward, but recently I had a……
A couple of months ago, I had a requirement to gather diagnostic data from Palo Alto Networks (PAN) firewalls every few seconds for the PAN……
Fail2Ban is an intrusion-prevention software that scans log files and takes action as directed. Hence, it may be used to scan SSH logs for invalid……
While various software such as browsers and security software try to prevent such user data extraction and targeted ads, pi-hole is freeware that is easy……
FIGlet (Frank, Ian and Glenn’s letters) is a handy program that makes large characters from small characters provided as input. This is useful for banners……
Problem: BlackBerry Exchange Server (BES) 5 users experience intermittent issues with their devices. For example, they receive some emails promptly whereas others after a delay……
Problem: The sendmail service takes a while (more than a minute) to start and emails sent via sendmail take a couple of minutes to get……
Problem: The logrotate process caused high CPU utilization, ran for about 5-6 hours and finally exited with a non-zero (failure) exit code. Background & Analysis:……
In trying to make my team aware of what’s in our team’s wiki (based on Mediawiki), I wanted a simple notification to go out to……
There are PHP applications which use MSSQL as the back-end database and such applications require FreeTDS to enable PHP code interface with MSSQL. This article……
Installing software on RHEL platforms using yum is straightforward. However, based on your environment, there could be a few more steps to get there. So,……
Pluggable Authentication Modules (PAM) is a framework used for authentication. Typically, most Linux distros come with PAM installed by default. PAM can be powerful if……
Problem: Cannot connect to a MySQL database on a remote host (port 3306) Firewalls aren’t blocking traffic and network connectivity is available. The MySQL database……
Typically, building a LAMP system on RHEL may be performed by yum installs. However, I wanted specific options built-in for my AMP and I wanted……