PHP-FPM uses a daemon to manage the multiple PHP versions on a single server. Together we can use Apache and PHP-FPM to host multiple PHP web sites, each using a different versions of PHP at the same time. This is useful because different applications may require different versions of PHP. HP-FPM…
If you ever find that you need to send out email from your server via a relay, as you cannot send them out directly from your server’s IP (eg its been black listed). Relaying the mail via Mailgun is a good option. To do this you will need to setup…
There is a known error when your Nagios Monitoring Server is running Ubuntu 16.04 and you are trying to monitor a server with a newer version of Ubuntu like Ubuntu 18.04. In Ubuntu 18.04, NRPE uses a 2048 bit DH key, but in earlier versions of NRPE use a 512…
I had an issue today where a Linux VM’s file system was read only after a SAN issue. When a Linux server like Ubuntu looses access to its disks, the file system can go into read only to protect it from corruption. To resolve this you will need to run the following command:…
While generating a PDF from a dynamically created HTML file, I found that the PDF generation failed as there were non UTF-8 characters in the HTML file. To try and find these characters, I used the strings command with the -n 8 switch to remove any non UTF characters: I was…
UFW a firewall configuration tool available on Ubuntu. UFW provides a user friendly way to create an IPv4 and IPv6 ip/port based firewall rules. By default UFW is disabled, it can be enabled by running the following. Please ensure you have firewall rules in place to allow SSH before you enable…
If the cdrom was not automatically mounted, mount the cdrom (in your guest OS) using the following commands: To install, run the following During vmware-install.pl, choose the default answers to everything (just hit the <enter> key). You can configure the tools using the following Reference https://help.ubuntu.com/community/VMware/Tools
To create a symbolic link use the command below: Example of creating a symbolic link called my.conf from a file called /var/test/myconfig.conf
