In my lab I’ve been running arch on a NFS server and the filesystem used is ZFS. I think you already know that in Arch the zfs packages are located in AUR. There are several options like zfs-linux and zfs-dkms. Sadly both are problematic during kernel updates. One solution I…
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I’ve been having some troubles with Zigbee. Yes, at our airbnb we have a rather big dining room where I’ve put 7 Zigbee RGBWW Smart bulbs. The problem is that each time I try to turn all 7 on or off there’s either a lag or some of them just…
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SSL VPN? Lately I’ve been working on a project where security is very important. In order to connect to the hosting provider I needed to use a specific VPN provided by FortiNet. What’s interesting about this VPN solution is that apparently it uses HTTPS. this gave me the idea to…
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The module supports the new DIY mode from Itead. This is probably a good ideea poorly implemented. The firmware on itself uses a kind of restfull API which is much slower than MQTT and more important Home Assistant does not yet support it (at leas not natively). The initial version…
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In the IT world you can’t just remember everything you ever do, so you need a way to set a trail of what you do. Some people write journals and some (me included) write their documentation in a wiki. Wiki today means Wikipedia, Wikipedia runs MediaWiki software which is a…
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My new favorite piece of technology is right now Wireguard. I love how easy it is to spin it out, crypto looks right, performance is great. See you soon with more posts…...
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CentOS 6 users, because Let’s Encrypt requires at least Python 2.7 to run you need to install a newer version. Luckily you can install 2.7 version aside to the 2.6 version already in your system. To do that you need to put in IUS repository. The installation process is actually…
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Both Let’s Encrypt intermediate certificates, Let’s Encrypt Authority X1 and Let’s Encrypt Authority X2, received cross-signatures. Web servers will need to be configured to serve the appropriate cross-signature certificate as part of the trust chain. The Let’s Encrypt client will handle this automatically. More info on Let’s Encrypt blog.
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It looks like Debconf is on theese days. You can watch it live at here or there’s a video archive of what is happening. ...
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Suppose you really need a highly available service. Normally you would put a load balancer in front of a server farm. But what happens when the load balancer fails? Well, we could have to load balancers, one which is actually active and the second one kicking in when first one…
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I use X Forwarging over SSH for several things to manage, such as virtual machines with “virt-manager”. Today, when I wanted to run a graphical tool on one of the servers I kept getting this error. Error: Can't open display: localhost:10.0 I verified all the possible configurations issued, launched the…
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I hate ads. Don’t get me wrong, I understand why they’re here, I understand how the system works, I just hate when ads get in your way. For Chrismas, Santa and my Piggy Bank decided to make me have a Galaxy S5 Duos (Duos stands for Dual SIM). It all…
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When your maillog on a CentOS/*EL machine looks like this: mail postfix/smtpd[19345]: connect from unknown[XXX.YYY.ZZZ.QQQ] The solution is really simple, just copy some resolve libs into postfix’s chroot folder: mkdir /var/spool/postfix/lib64/ cp /lib64/*nss* /lib64/*reso* /var/spool/postfix/lib64/ service postfix restart Now it should look like this: Oct 31 09:00:34 mail postfix/smtpd[19424]: connect…
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