Fix ZFSonLinux pool auto expanding

Posted on July 24, 2017 | Leave a comment

If you’re having issues with zfsonlinux and your pool not expanding after replacing your hard drives with larger ones then here is a trick to fix it. Continue reading →

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Posted in Linux, Troubleshooting

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Scheduled task to reset wireless network adapter after hibernate on Windows

Posted on July 6, 2017 | Leave a comment

One of my Edimax wireless adapters fails to resume network connectivity when restoring the system from hibernation.

So I created a scheduled task that resets the device, after resuming from hibernate open your Event Viewer > System.

Look for event ID 27 – “The boot type was 0x2.” right click  “Attach task to this event”

Run program: powershell.exe

Arguments: Restart-NetAdapter -InterfaceDescription ‘Edimax AC1750 Wi-Fi USB Adapter’ -Confirm:$false

This should fix the issue automatically after every reboot. Your interface description may be different, in powershell run “Get-NetAdapter” to get the device’s specific and edit the arguments above as needed.

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Fix zfs-mount.service failing after reboot on Proxmox

Posted on July 1, 2017 | Leave a comment

In my new homelab migration to Proxmox I came across a bug that will prevent you from being able to mount all your ZFS mount points and be a pain in the ass even more if you host containers in that folder.
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Posted in Linux, Proxmox, Technology, Troubleshooting, Virtualization

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LXC allow non-root users to bind to port 80 (couchpotato example)

Posted on June 29, 2017 | Leave a comment

A follow-up to my last post dealing with unprivileged port access on linux containers.

This time, I have a couchpotato container that I want to change its default port from 5050 to port 80, so that it is as simple as http://mycouch/ to access from the local network.
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Allow non-root processes to bind to privileged (ports <1024) on linux

Posted on June 28, 2017 | Leave a comment

As I work on my homelab migration from FreeNAS into Linux containers, I need to move my freebsd jails to LXC.

In *nix any usage of well-known ports (aka 1024 or less) requires special privileges or a kernel setting. In FreeBSD a simple sysctl net.inet.ip.portrange.reservedhigh =1 was enough to allow the BSD jail to use any port on the jail.

On LXC, I had to figure out how to do the same thing and its quite different. My environment is a debian stretch LXC container but should work on other linux versions.

# apt-get install libcap2-bin
# setcap 'cap_net_bind_service=+ep' /usr/bin/transmission-daemon

In the example above, the binary /usr/bin/transmission-daemon is now able to open any port, or port 80 http in my case all while running a service as a non-root user.

Hopefully these helps folks out there, the answer took some digging but I already had an idea on what was needed thanks to my FreeBSD experience in zones 🙂

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FreeBSD/FreeNAS USB_ERR_TIMEOUT fix

Posted on June 11, 2017 | Leave a comment

As I prepare my migration to my new Debian ZFS system I wanted to backup my zpool onto an external 8TB hard drive. I came across this issue where after plugging in the external USB 3.0 hard drive it would loop and not work:

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Install proxmox on a partition instead of a full-disk

Posted on June 11, 2017 | Leave a comment

By default, installing Proxmox with ZFS during the installation process will force you to use the entire disk for the root zpool. For most installs this is good enough. However, I like to do things differently sometimes.

I have a pair of Samsung 840 Pro 256GB SSDs that I wanted to use for my new homelab that I am currently building (moving from vmware to proxmox). You may be wondering why I want to install the operating system on a partition instead of an entire disk. Several reasons:
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Posted in Guides, Linux, Proxmox, Technology, Virtualization

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Homelab 2017 refresh

Posted on June 10, 2017 | Leave a comment

My faithful Lenovo TS440 home server has reached its peak potential as I have maxed out the 32gb memory limit of the Intel E3 v3 architecture.

My needs for more CPU power and memory is driven by the idea of hyperconvergence. Which means I use a single machine to be my router/firewall, VPN gateway, network storage as well as virtual machine host.

Those themes have been part of my home network design since 2010 or so, today’s hot technologies are focusing on containers (LXC), Docker, etc. So I need a more powerful server in order to be able to expand my playground into those technologies. The 32gb maximum on my old server is simply not enough when you have 5 different VMs that consume almost all your memory resources (windows 10 VM, OSX one and my FreeNAS one being the top users of 75%+). Continue reading →

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3 week post-LASIK update

Posted on May 26, 2017 | Leave a comment

If you are following my LASIK journey, where I drove to Mexico to get it done. This is my 3 week post-op update.

I’ll keep it brief and summarize my experience over the past 3 weeks. If you read my initial post you know that I had moderate Hyperopia (farsightedness) plus astigmatism that I wanted to get corrected.

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TeamViewer monitoring and instant push notifications

Posted on May 26, 2017 | Leave a comment

It has been almost a year since that massive reddit post with people freaking out about their TeamViewer accounts getting hacked [link].

Since then I have always wished team viewer would notify my cellphone every time someone connected or disconnected from my workstation, since I am the only user that connects to it I find the peace of mind extremely valuable and I wouldn’t mind getting some push notifications each time I used TeamViewer.

As TeamViewer themselves don’t have this feature I decided to write my own little program that will  send instant notifications to any phone for anyone connecting to your workstation using TeamViewer. Say hello to go-TValerts!


I have released my code as open source, written instructions on how to install and implement it. Find out more at github.com/TheLinuxGuy/go-tvalerts

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