Check if you are using obsolete packages aptitude search ‘~o’If this gives you output you will have to take into account that these packages are no longer in a standard repo since they were removed. Perform a full backup – does that realy need stating ? warningUpgrading debian from 8 to 9 will replace mysql […]
Author: bobnoordam
Writing a context menu outlook addin
There is a sizable amount of documentation around about writing outlook addins, but few complete samples that cover the basics, and only the basic. Documentation snippets are great to get started, full blown applications are good if you dig around in addins daily. This snippet covers the middle ground: It is (the) complete framework you […]
Configuring VPN Access with Server 2012
This document demonstrates how to configure PPTP remote VPN Access on server 2012 using the routing and remote access component. If you have a router or other hardware supplying firewall services and the server that will provide the VPN access is not directly attached to the internet (a good thing) – you will need to […]
Determine or change your configured ip, determine your external ip
In the series, ‘spare me the lecture, just tell me how it works’, here is a bunch of quick reminders about your ip configuration on your Ubuntu linux box. ifoncig.me is a handy website that will show you all kinds of information in your web browser, such as your public facing ip, hostname and other […]
HYPER-V Compacting of ext4 disks
There are some claims around that quick wins may be made on ext4 disks by using fstrim to release unused blocks, by running #sudo fstrim , however, in practice this will give you fairly limited gains, or none at all. I believe the actual effect of trim is largely misunderstood, as it’s function is _not_ […]
Ubuntu: stop automatically adding printers on the network
Having your printers on the netwrok automatically added can be handed on a small network, but it can become a major drag on networks with a large number of printers. The service repsonsible is named cups-browsed. Here is how you can disable this service, thereby no longer adding your printers. Printing services for manually installed […]
Creating your first let’s encrypt certifcate on Linux
I still see system administrators hold off on SSL because they are scared for the process of creating certificate requests, getting the certificates and then integrating them into apache. This writeup will show how to install an SSL certificate using CERTBOT, a handy tool provided by let’s encrypt that takes all the manual work out […]
Using KVM and virt-manager to setup a hypervisor
first off, for Ubuntu server you will need to enable additional repositories, by running sudo apt-add-repository universe Next, install the hypoervisor, and the management tool sudo apt install qemu qemu-kvm libvirt-bin You can verify the readyness of the hypervisor with the command kvm-ok, which will output something like this INFO: /dev/kvm exists KVM acceleration can […]
Adding apache and php to your bare server configuration
The basic Ubunu server install does not have apache and php installed by default, so you will need to add them to the system. sudo apt install apache2 php php-mysql Verify that your webserver and php are working, by visiting you public ip address. This should display the default apache welcome page. Next, navigate to […]
Adding a named site (virtual hosting) to apache
Each website you configure on your apache server gets it’s own small configuration file, which is a major improvement over the old days where one massive file configured all websites on the server. Navigate to the directory /etc/apache2/sites-available and create a new configuration file for your website. You are free to pick a name for […]