For a while, we’ve been trying to get proper monitoring at TakeLAN, my home servers, and customers after a lot of work, tuneup and changes we finally made it we got the perfect monitoring setup. Monitoring… On the owned datacenters, we’ve installed DHT22 sensors to monitor intake, and exhaust of the room temperature, with that
Lets compile KVM – QEMU from scratch on Debian Jessie This… will take a long ass time!. Find attached my .deb if you’re too lazy for that. Meet this requirements first, before using my .deb !! If you’re missing packages… then… here you also have my apt sources.list Install missing keyrings!
Why Virtualbox… why… why do package maintainers do this to us! Well, guys, as usual, I post things that annoy me and how to fix them. So when my horrible memory forgets how to fix a simple issue, I know I can come back to my notes and figure it out again. So, I’m typing
This Cloudmin issue drove me nuts, but then it clicked on why it didn’t work. If, for some reason, after you configure your network or your server magically, VNC stops working. The answer is as simple as your host’s file. Your hostname MUST be declared in the Hosts file (as 127.0.0.x)… After you’ve fixed that,
Luks keys… and luks encrypted drives: Warning: Always backup the LUKS header before performing any maintenance on the hard drive!. How to backup the luks header:Drive: /dev/sdb [Example] Name: /tmp/mybackup [Example] Add a LUKS key: Deckey: Would be your passphrase key for decrypting your drive [first key when setting up the encrypted drive]. Slot: Luks
Finding out information about plugged in devices in the motherboard without opening the machine. The following command should output something similar to this: Congratulations, you now know you only used two banks out of 3, and the system’s maximum allowed memory. PCI Devices: USB Devices:
KVM Nested virtualization. For my current project, I needed to perform nested virtualization on KVM using Ubuntu 12.04, and I encountered the VM would pause itself after showing the bios. That error dragged me to the logs where this line called my attention: And digging, I found out it’s a bug known issue with the 12.04 kernel.
The basics: Virtualmin is a powerful and flexible web hosting control panel for Linux and UNIX systems based on the well-known Open Source web-based systems management GUI, Webmin. Manage your virtual domains, mailboxes, databases, applications, and the entire server, from one comprehensive and friendly interface. I recommend using Virtualmin; it made my life so EASY!,
How to install PDF2SWF, PDFTools in Debian. First you need the needed repositories. The first solution. Given that, not even then I got to install it, proceed and clone the master branch on Github, that seems to work perfectly fine. So the solution I found somewhere:
Many times our servers struggle to answer to connections in time, this is why we need to optimize. First we assume we have installed Virtualmin on Debian 7. Second, we assume you know some of PHP and common Linux utilities. We’ll install memcached and php5-memcache [Memcache plugin for memcached]. php5-memcache and memcached We are assuming