Beta version of Red Hat Enterprise Linux 8.0 was announced recently. It can be downloaded without any registration, or you can go through the Developers Program and get a subscription for development usage for free. I downloaded the ISO this…
[Vratislav].[Hut][Sky].[Net]
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Tag: linux
Migration from OpenLDAP 2.3 to 2.4
Note: I wrote this post during Christmas break 2017, but it took me some time before I managed to give it a better form, verify the steps again and publish it. Hence some Xmas references in a text published during…
Debian buster and wake on lan
For quite some time, I used to have a low-end motherboard that didn’t support Wake on LAN. So when I left for work or holiday, I would usually leave my home PC on, because sometimes I just needed to access…
KVM: Cannot find any matching source devices for logical volume group vg2
I installed Centos 7 on a brand new machine about a half a year ago, and set up KVM with two data pools – one just a regular directory for old raw images, the second being an LVM volume group.…
Scroll emulation with Trackman Marble in Debian 9
Spending a lot of time with mouse and keyboard, I decided I would give it a try with trackball. A friend lent me Logitech Trackman Marble for a week to see if I can get used to it. The one…
header_checks and Spamassassin headers in Postfix 2.6
I’ve had this mail server of mine for some time. I was an early adopter of Gmail back then, but as years went on and it became obvious that messages were data-mined by Gmail, I eventually started running my own…
Apache and umask 002
I ran into a problem with Apache on Centos 6. For some time, I was the only person who had access to this particular machine so permissions were not a problem. However, now that somebody else is taking care of the website…
Centos 7 – bridge for KVM
I got a machine on which I wanted to try Centos 7 and KVM virtualization. As usual, I had to search for how to do a network bridge as it’s been quite long since I did it last time (on…
AWK – print no newline
Using awk to display information, the print function, by default, adds newline after each iteration. I wanted to copy the results and use them as an actual array in a program and preferred to have them all on one line,…
Grep result to a shell variable – no line breaks
There was this website containing regularly updated content I wanted to follow. Unfortunately, they had no RSS feed available and I didn’t feel like checking on the website every now and then. Also, what I needed was just the posts…
My name is Vratislav Hutsky. I work as Associate Manager at Red Hat. Before that, I was a freelance server admin and developer for quite a few years.
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