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Sysadmin tip: How to force a new Linux user account password change after...
Have you logged in through SSH to remote servers with the brand new given UNIX account in your company just to be prompted for your current Password immediately after logging and forced to change your...
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Make Laptop Sleep on LID (Monitor) close in Linux Debian and Ubuntu systemd...
I need to make my laptop automatically sleep on LID Screen close but it doesn't why? If have used your laptop for long years with Windows or any Windows user is used to the default beavrior of Windows...
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June 29 the Feast of The Glorious and First among Apostles Peter and Paul in...
Saint Apostle Peter and Paul are the most glorious of all Christ desciples thanks to whom by God's mercy and Grace the nations have received the good news of the Lord Jesus's Christ Crucifix for the...
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Linux: Howto Disable logging for all VirtualHosts on Apache and NGINX...
Did you happen to administer Apache Webservers or NGINX webservers whose logs start to grow so rapidly that are flooding the disk too quickly? Well this happens sometimes and it also happens that...
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Stop SSH Bruteforce authentication attempt Attacks with fail2ban
Most of webmasters today have some kind of SSH console remote access to the server and the OpenSSH Secure Shell service is usually not filtered for specific Networks but fully accessbible on the...
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Linux Send Monitoring Alert Emails without Mail Server via relay SMTP with...
If you have to setup a new Linux server where you need to do a certain local running daemons monitoring with a custom scripts on the local machine Nagios / Zabbix / Graphana etc. that should notify...
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How to check how many processor and volume groups IBM AIX eServer have
In daily sysadmin duties I have been usually administrating GNU / Linux or FreeBSD servers. However now in my daily sysadmin jobs I've been added to do some minor sysadmin activities on a few IBM AIX...
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Get daily E-Mail Reports statistics on postfix Linux mail server
I've had today a task at work to monitor a postfix mail send and received emails (MAIL FROM / RPCT TO) and get out a simple statistics on what kind of emails are coming and going out from the Postfix...
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How to install GUI on CentOS 7 Minimal and set Gnome Graphical Environment to...
I have installed CentOS 7.7 Minimal Server Linux on a VirtualBox Virtual Environment as a test bed machine. The system got installed easily succesfully with the standard CentOS python based graphical...
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Send TCP / UDP strings and commands to Local and Remote Applications without...
Did you ever needed to send TCP / UDP packets manually to send commands to local or remote applications, having a fully functional BASH Shell but not having the luxury to have NC (Netcat Swiss Army...
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