Sometimes you have a bunch of files, for example a bunch of images, which name consists of just a number and an extension. When you want to process them further sorting them will sometimes fail when they are not prefixed with a zero. That’s easily solved in a one-liner
Continue reading “Rename numbered files”Category: Tech Tips
Random Tech Tips
Start plain old IE in Windows 11
Sometimes you encounter a device which is old enough that it needs an ActiveX control for set-up. Some old IP Camera’s for example need this. Technology however moved forward and a “new” browser, such as Microsoft Edge, does not support ActiveX.Do we now have a piece of “e-waste”?
Continue reading “Start plain old IE in Windows 11”Monitor certificate expiration (hosts)
In another Blog Post (Monitor certificate expiration) I showed a small script which checks local certificates for their expiration date and warns when it is near. This due to the fact that lets-encrypt does not send out warning mails anymore.
Checking a remote host is also something that a small bash script can do.
Continue reading “Monitor certificate expiration (hosts)”Monitor certificate expiration
Lately I got a message from lets-encrypt stating they are ending the notification mails they send out to remind you of certificates expiring. As I do have lets-encrypt certificates which are not auto renewed because of the challenge mechanism I liked those messages.
But nothing that a small bash script can’t fix.
Continue reading “Monitor certificate expiration”Hardlink with rsync
Sometimes you want to create a quick snapshot of a few files / folders. rsync is a great tool for this. And sometimes you don’t want to copy the files because that takes up space and you might be copying them to the same filesystem. Hardlinking is quite a nice option in this case (if the filesystem supports it)
Continue reading “Hardlink with rsync”Add a new certificate in unify controller
I’m making use of Ubiquiti AP’s and therefore use the Unify software to manage them. I have it installed within an “ordinary” vm.
The software normally uses a self-signed certificate. This is not a big issue as it is my local network.
However Chrome starts warning more and more and Safari doesn’t seem to like the self-signed certificate at all after the latest updates. So it became time to install a “proper” certificate.
This little article explains how.
Continue reading “Add a new certificate in unify controller”Debugging via Dbms_Pipe
When running code you sometimes have the need to debug the progress of the statements. One way is to use a table and write your debug output into it by means of an autonomous transaction. But sometimes it can be easier to just hand the debug info to a different session. Say hi to Dbms_Pipe…
Continue reading “Debugging via Dbms_Pipe”Resize physical volume without reboot
Sometimes you need to resize a filesystem because it grows out of it’s available space. With virtual machines this is quite easy, just resize the disk. But…. how do you make Linux know the disk has been resized?
Continue reading “Resize physical volume without reboot”Quickstart Apex with docker-compose v2
As I read an article about Oracle providing version 23c “for free to developers” (https://blogs.oracle.com/database/post/oracle-database-23c-free) I wondered if it was usable for a quick deploy of Apex. As ORDS has been updated as well it turns out that needed some tweaking…
Continue reading “Quickstart Apex with docker-compose v2”Connect a record player to Squeezeboxserver
For my audio system I’m making use of Logitech Squeezeboxes, as I’ve converted most of my CD’s (yes I’m old ;)) to MP3 format. In this way I’m able to play/stream the same music throughout my house. Spotify is also integrated into this set-up so I’m able to play that as well.
But I also have a record player (old remember ;)) with vinyl records. It would be nice to play them through the same system….