Apache and GeoIP2 module
Often, the Internet can seem like the wild wild west (or the wild wild east, depends on where you are located), and you can be fairly certain that any public facing service will draw some amount of brute force attacks …
Tag: centos
Early RHEL 9/CentOS 9 Stream
Even if it’s still in pre-Beta, it has been publicly known that RHEL 9.0 development is well under way for some time now. But that’s not all there is to it – not only is this information public, the development …
Upgrade Postgresql from 9.3 to 11
I had to update an already unsupported Postgresql instance running on version 9.3 to the latest version 11. Luckily, this process is quite straightforward and all the hard lifting is done by the postgresql update tool. The only problem there …
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 …
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. …
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IPv6 with gateway in a different subnet
I’ve run across this peculiar problem. I was trying to set up IPv6 on a Centos 6 machine. I thought that it would be a simple task – a couple of minutes at most – as I had done that …
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 …
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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 …
CentOS 6 and MiniDLNA
I’ve got a small home server made from a half-broken laptop nobody wanted any more. The screen was’t working, but otherwise the machine was fine, so I took it, shipped Centos 6 on it and it’s been serving as a …