One of our Apache 2.4 web servers strangely stopped working and didn’t want to come back up. I tried to start it but it came back with a vague error message: A quick look in /var/log/apache2/error.log just showed nothing useful: So, I ran the Apache configuration check tool on the configuration files but the syntax … Read more
Ubuntu 14.04 comes with both MySQL 5.5 and MySQL 5.6 and by default uses MySQL 5.5. However, you can upgrade to MySQL 5.6 by doing the following steps: Step 1 – Take a backup! Step 2 – Remove the old MySQL I recommend using ‘apt-get purge’ rather than ‘apt-get remove’ to uninstall the old MySQL … Read more
If you are using UFW on Ubuntu as your firewall manager then this is how to open a range of ports from the command line:
If you move a server around you might have problems with a known hosts file. You would get an error saying: You can remove a hostname / domain from known host like so: You can remove an ip address from known hosts file like so:
We are using Kayako for our support ticket system. I just updated our server from Ubuntu 12.04 to Ubuntu 14.04. We started to see a problem with some crons which automate the importing and processing of emails. This is the error that we got: There are several possible SSL problems that this could be: 1 … Read more
If you have just upgrade Ubuntu from 12.04 to Ubuntu 14.04 and are running Kayako. You might have seens this bug: The solution is to first install the php imap extension: Then restart Apache using: If you are still having the error then you need to explicitely enable this extension. Then finally restart Apache again: … Read more
I have just upgraded from Ubuntu 12.04 to Ubuntu 14.04 on our Bacula backup server. Everything is backing up okay however it’s failing to delete the catalogue backup job after it has run. The error message is: It turns out that Ubuntu 14.04 updated the backup script /etc/bacula/scripts/delete_catalog_backup but didn’t make is excutable. I could … Read more
This is how to remove / delete a user on Ubuntu from the command line: Then delete the user’s home directory:
I needed to create a .iso file to make a Windows icon. You need to use icotool which is part of icoutils. Then: Job done.
ng2icns is a great little tool for creating Mac icons on Linux. It comes in the the incsutils package: