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antipaucity

fighting the lack of good ideas

Tag: centos

basic dockerized jitsi deployment with an apache reverse proxy on centos

Posted on 20 March 202023 March 2020 By antipaucity

After a friend of mine told me he wanted to deploy Jitsi on my main webserver, and me saying “sure”, I decided I wanted to get it up and running on a new server both so I knew how to do it, and to avoid the latency issues of videoconferencing from central North America to…

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cool, technical, tutorial

ssl configuration for apache 2.4 on centos 7 with let’s encrypt

Posted on 7 July 201710 July 2017 By antipaucity 1 Comment on ssl configuration for apache 2.4 on centos 7 with let’s encrypt

In follow-up to previous posts I’ve had about SSL (specifically with Let’s Encrypt), here is the set of SSL configurations I use with all my sites. These, if used correctly, should score you an “A+” with no warnings from ssllabs.com. Note: I have an improved entropy package installed (twuewand). This is adapted from the Mozilla config…

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technical, update

turn on spf filtering with postfix and centos 7

Posted on 25 April 201623 April 2016 By antipaucity 1 Comment on turn on spf filtering with postfix and centos 7

After running my new server for a while, I was noticing an unusually-high level of bogus email arriving in my inbox – mail that was being spoofed to look like it was coming from myself (to myself). After a great deal of research, I learned there is a component of the DNS specification that allows…

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technical, tutorial

putting owncloud 8 on a subdomain instead of a subdirectory on centos 7

Posted on 29 February 201629 February 2016 By antipaucity

After moving to a new server, I wanted to finally get ownCloud up and running (over SSL, of course) on it. And I like subdomains for different services, so I wanted to put it at sub.domain.tld. This turns out to be not as straight-forward as one might otherwise hope, sadly – ownCloud expects to be…

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technical, tutorial

automated let’s encrypt ssl certificate renewal on centos 7

Posted on 26 February 20168 March 2016 By antipaucity 4 Comments on automated let’s encrypt ssl certificate renewal on centos 7

In my how-to for Let’s Encrypt, I gave an example script that can be called via cron (or manually) which will renew Let’s Encrypt SSL certificates under CentOS 6. If you want to do it on CentOS 7 (which is what I am now running), use the following: cd ~/letsencrypt git pull systemctl stop httpd.service…

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technical, tutorial

let’s encrypt centos 6 – truly free ssl

Posted on 6 January 201628 March 2016 By antipaucity 10 Comments on let’s encrypt centos 6 – truly free ssl

There’s been quite a bit of excitement surrounding Let’s Encrypt recently – a truly 100% free SSL issuer. Last week I helped a friend of mine get his first Let’s Encrypt certificate generated and configured for his website. One of the things I found incredibly frustrating is that Let’s Encrypt does not have a package…

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tutorial

merging centos iso images

Posted on 28 January 201517 October 2023 By antipaucity

Thanks to @Anon on Unix.SE for the pointer on how to do this. And to @Andy‘s comment on @mmckinst‘s answer for the warning about additional packages you may need. As my three readers know, I run a CentOS mirror. One of the idiosyncrasies of CentOS, like its upstream RHEL, is that DVD ISOs aren’t always…

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cool, technical, tutorial

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