Let’s Encrypt wildcard certificates without DNS API
A short tutorial on how to obtain Let’s Encrypt wildcard certificates using a tool called Agnos
Continue reading →Category: Linux
How to configure ZNC backlog for multiple clients
The znc IRC bouncer is a great piece of software. In this post, I’ll explain how to get individual backlog/buffer playback for each client. The problem The Auto Clear Chan Buffer and Auto Clear Query Buffer options, if checked, make sure that you receive backlog playback only once (instead of every time you connect). This…
Continue reading →How to add a swap file on linux
Forgot to create a swap partition? Here’s how you add a swap file (do this with root privileges):
Continue reading →How to ssh to a system rescue cd live system
Sometimes it is useful to access a machine booted with a sysresccd from another computer, for example to be able to open several terminal windows next to each other, or to be able to work from somewhere else (with a laptop on the couch for example ). Assuming the computer in question has a network…
Continue reading →Bash: How to check if your script is already running
Sometimes, you don’t want a script to run when it is already running. Maybe it is scheduled as a cronjob but the previous run of that cronjob hasn’t finished yet. I usually do some “pre-flight checks” in almost every script I write. And most times, this is one of them.
Continue reading →How to force fsck run on next boot
Run sudo touch /forcefsck Next time you boot, the file system will be checked.
Continue reading →How to disable “more” addresses button in Thunderbird 3
So I upgraded to Thunderbird 3 some time ago. It has nice new features, like the grouped folders. Anyway, there are a few things that annoyed me too; one of them being the fact that whenever someone sends a mail to me and some other people, only the first recipient was displayed, with a “more…”…
Continue reading →Building a HTPC with Mythbuntu 9.10
So I decided it’s time to build a HTPC so I can record TV and also use time shifting when watching live TV. I’ve tried several products, be it software packages or whole linux distributions, including Windows Media Center, Apple Front Row, vdr, c’t-vdr, yavdr, freevo and mythTV. That last one I liked most by…
Continue reading →Why Macs may have trouble with fonts from SMB shares
The problem Did you ever want to install a font on your Mac that’s on a SMB share, for example on a Windows/Unix server? Did you experience the font was broken somehow, being displayed in the finder as “unix executable file” with 0kb size? We had this issue here often, finally I figured out why…
Continue reading →Zimbra and Lightning Calendar Issues
Trying to integrate Zimbra calendars in Lightning, I ran into a couple of problems. So far I’ve found four different ways to do it in the internet: ICS: http://zimbrahost.example.com/home/USERNAME/CALENDARNAME ICS: webcal://zimbrahost.example.com/home/USERNAME/CALENDARNAME ICS: webcal://<USERNAME>:<PASSWORD>@zimbrahost.example.com/home/USERNAME/CALENDARNAME CalDAV: http://zimbrahost.example.com/dav/USERNAME/CALENDARNAME Now the ICS solutions don’t work properly for me, the calendar entries are loaded but Lightning is unable to write…
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