Ultimate CentOS server setup guide 2018 – Part 2

Here we are again with part 2 of the CentOS ultimate server setup guide 2018. Following a most successful start with the basics, today we go a bit deeper with a few useful tools and must haves for your CentOS installation. There are a lot of guides out there, installing and configuring CentOS 7 and…

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Nextcloud 12 migration guide

Following one of the better decisions a couple of days ago, it was time today to re-install my webserver that runs Nextcloud. I made some errors setting it up, now almost a year ago. A couple of things could be fixed, a couple of things I’d rather not and just build it from the ground…

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New Zimbra 8.7.11 server migration guide

In the past I haven’t been so kind about the Zimbra Open Source Suite. Installing it in my own, configuring it, getting all my data to it and using it daily wasn’t a breeze. I found it especially difficult to keep it stable while ensuring security. I’ve also been somewhat active at the forums and…

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Setting up sysstat on CentOS 7.4

With my macOS background I previously always checked my server load primarily with the ‘top’ command. I still use it often to have a look at what my system is busy with at that very moment, but it’s not so useful to check what it was busy with 10 minutes ago, yesterday or at any…

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Security headers in HTML site

I’ve written about the wonderful mechanism of securing your WordPress site a bit more with Security Headers before. I still think it’s pretty awesome, all these small things to make your site a bit more secure. Well, now I needed these headers for a one page HTML site. It’s definitely not hard but you just…

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Zimbra Open Source Backup

This everlasting tinkering with Zimbra… It annoys me. Today I discovered a few things that apparently are too hard to set to default when you install it, ldap tuning for instance, but what scared the hell out of me: I did not configure a backup yet? What the hell? OK, when I installed Zimbra I…

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SELinux deep dive

At the start of my Linux adventure, I’ve read a lot about installing software xyz and then of course tried it myself. What I thought was odd, was that so many guides advocate to disable SELinux. I didn’t even understand what SELinux was at the time, but I did know it was a security mechanism….

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Linux random security related stuff

Security. A couple of points I came across in the last couple of weeks. Some random ramblings really, how to make your Linux server (I myself am running CentOS 7.4 server) a bit more secure. There are way more elaborate posts on this blog, but every little bit counts. Since this year I have a…

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