roouserus-blog

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WARN - Missing: seclabel

WARN – Missing: seclabel

WARN – Missing: seclabel

One more check_mk tip here; we were getting a lot of errors of this nature in our check_MK monitoring system: WARN – Missing: seclabel. I tried to look around on google and read the check_mk docs to get a clue what was wrong here but to no avail. From the documentation, one thing was clear that this “WARN – Missing: seclabel” is related to SELinux not being able to set…

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506 Cannot talk to daemon - check_MK 1.6.0p11.cre

506 Cannot talk to daemon – check_MK 1.6.0p11.cre

I woke up this morning to a few hundred alerts from check_MK about time sync issues on one of the servers and “506 Cannot talk to daemon” in the logs; The fun part: they were still coming in!

Why was this happening? I logged onto the server and checked that ntpd service was running and chrony was disabled (hence; 506 Cannot talk to daemon), exactly how it should be for the servers which tend to…

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Backup your Windows server 2016

Backup your Windows server 2016

Why you should backup your windows server 2016?

In the world of IT, IT Administration to be specific, backups play a very crucial role in any organization. It is very important to have backups taken, manually or scheduled, after some interval of time. That time depends how crucial your systems are and how often they are updated from previous version. I am not referring to system update only, but…

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Make Windows server 2016 a domain controller

In order to understand what a Domain Controller (DC) is, one must understand what a Domain is. Domain is a collection of systems, users, applications, servers etc. which are administered from a centralized location and using common set of rules. The term “Domain Controller” is used more in Windows environment because it was invented by Microsoft for System Admins to access and manage local system…

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Join Windows to active directory

Join Windows to active directory

In this tutorial we’ll learn how to join a Windows computer to Active Directory domain. Steps are fairly easy, so let’s begin.

Boot a test Windows 10 machine and on the keyboard, press WINKEY+R and type in “SystemPropertiesComputerName” following by Enter.

This will bring up “System Properties”. Click “Change” against the setting which reads: To rename this computer or change its domain or…

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changing hostname in Windows server 2016

changing hostname in Windows server 2016

Coming from Linux administration to Windows administration can be challenging for some folks. Changing hostname in Windows server2016 is easy if you know the steps. Some of the preliminary tasks of a windows administrator includes configuring new servers which includes some of the following:

Change IP address to static.

Change the hostname of new Windows server.

Making the server a part of global…