$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Nagios on Ubuntu 18.04 Bionic Easy Guide

April 17, 2018 | By the+gnu+linux+evangelist.

Nagios Ubuntu 18.04 - Installing Packages

Then Install the Required Packages
Logins as SuperUser to make shorter the others commmands:
```
sudo su
```
If Got “User is Not in Sudoers file” then see: How to Enable sudo
So to Install the Packages:
```
/napt install php7.0-gd libgd2-xpm-dev build-essential /napache2 libapache2-mod-php7.0
```

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How to Install Nagios on Ubuntu 18.04 Bionic Easy Guide

Nagios Ubuntu 18.04 - Installing Packages

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