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WordPress: The uploaded file could not be moved to wp-content/uploads/

Linux
Posted on April 4, 2017Leave a comment on WordPress: The uploaded file could not be moved to wp-content/uploads/

Some time ago I had reinstalled petersplanet.nl on a new CentOS 7 Linux server with the latest WordPress version. However when I tried to upload new content this was not possible anymore. The error message was that the uploaded file could not be moved to wp-content/uploads/2017/04.
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SELinux access denied

Linux
Posted on March 19, 2017Leave a comment on SELinux access denied

When access is denied to certain files folders it might be SELinux. You can check this in the /var/log/audit/audit.log
In this example we have changed the html folder in /var/www/ for the Apache HTTP server.
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Launch an Amazon AWS instance with Ansible

Linux
Posted on December 2, 2016Leave a comment on Launch an Amazon AWS instance with Ansible

It is also possible to use Ansible to create an instance on Amazon AWS. I have used the Ansible EC2 Cloud Module to create a CentOS 7 Linux instance. See http://docs.ansible.com/ansible/list_of_cloud_modules.html.
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Getting started with Ansible

Linux
Posted on November 27, 2016Leave a comment on Getting started with Ansible

Ansible is a great tool to automate the repetitive tasks on your servers. The target nodes will often be Linux but can also be Windows. The management server must be run on Linux.
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Let’s Encrypt

Linux
Posted on November 26, 2016Leave a comment on Let’s Encrypt

Now there is no excuse anymore not to use https for your website. At https://letsencrypt.org/ you can get a certificate for free. The certificate is only valid for 3 months but it is easy to automate the renewal using the ACME-protocol. For instance with https://certbot.eff.org/. You can test the result at: https://www.ssllabs.com/ssltest/

Add a Linux host to Active Directory with LDAP and Kerberos

Linux
Posted on October 27, 2016Leave a comment on Add a Linux host to Active Directory with LDAP and Kerberos

In this post I describe how you can add a CentOS 7 host to a Windows Active Directory domain. Happy experimenting.
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Jython scripting for JBoss EAP with Eclipse and PyDev

Programming
Posted on July 9, 2016Leave a comment on Jython scripting for JBoss EAP with Eclipse and PyDev

One of the nice features of RedHat JBoss Enterprise Application Platform is that you can script deployments and configurations using Jython. In this case we are using the Eclipse IDE together with the PyDev plugin for our development environment.Continue Reading

How to bypass the SSL security check in Jython

Programming
Posted on June 21, 2016Leave a comment on How to bypass the SSL security check in Jython

In the past to bypass the SSL security check in Jython I have used the example published at jython.xhaus.com. Unfortunately this doesn’t work anymore with Java 8 and Jython 2.7.0. Luckily I found a solution for Java at log.rowanto.com. Now I only had to transform this into a solution for Jython. This can be seen below. Continue Reading

The Shimano 105 5800 front derailleur

Cycling
Posted on June 15, 2016Leave a comment on The Shimano 105 5800 front derailleur

Adjusting the Shimano 105 5800 front derailleur can be a bit difficult. Especially for the low adjustment with the front derailleur on the smallest chainring and the rear derailleur on the biggest cog. Continue Reading

Run your website using Docker

Linux
Posted on May 12, 2016Leave a comment on Run your website using Docker

It is relatively easy to run your website with Docker. In this case we are using the nginx webserver with Docker on Amazon AWS.Continue Reading

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