Proxmox VM’s have slow response times and timeouts

We started to use the built-in firewall function in our Proxmox cluster, and sometimes VM-s started to timeout for time to time, but we found no problem then. It happened again, and finally found the root of our problem.

The following line started to appear in the syslog (both VM, and core machine):

 nf_conntrack: table full, dropping packet

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Proxmox VE 4.x 5.x – SSL Issue

We started to use VMs instead of containers a few months ago on our Proxmox cluster. We had some issues in the beginning but now it works well.

The problem:

Today I came across a very irritating problem as I was updating our certificates. After the update I couldn’t restart the working VMs and got the following error message:

Failed to start VNC server: Our own certificate /etc/pve/local/pve-ssl.pem failed validation against /etc/pve/pve-root-ca.pem: The certificate hasn't got a known issuer

The web interface was working well with the new certificate, so I started to search for answers.

Long story short, I found a few posts about the problem, but neither of them worked. And then I opened another one, and BOOM: It struck me hard.

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Litecoin founder Charlie Lee has sold all of his LTC

Charlie Lee, the former director of engineering at Coinbase, is selling almost all of his holdings in Litecoin (LTC), the cryptocurrency that he founded in 2011.

Lee explained in a post on Reddit that he is selling all of his LTC coins — bar a number of physical coins he keeps as collectibles — to avoid the conflict of interest that comes with his influence and position as LTC founder.

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Mozilla seeks return to glory with release of Firefox Quantum

Mozilla just delivered a re-engineered Firefox, branded “Quantum,” that it claims is twice as fast as just a few months earlier, and unveiled a re-drawn UI (user interface) with minimalist leanings.

The browser maker also dumped Yahoo as Firefox’s default search engine in the U.S., Canada and elsewhere, to return to Google, its partner – and primary financier – before a falling out three years ago.

The new browser’s official designation is Firefox 57, just another in an every-six-week series of upgrades. Until now, Mozilla has always numbered, never named, its browser releases.

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OneWeb is a step closer to bringing its global, satellite-based internet services to Earth

OneWeb, the company aiming to bring the internet to the  31% of the world’s population who don’t have access to 3G connectivity, is moving one step closer to bringing its satellite services back to Earth.

The billionaire-backed corporation, which has raised over $1.7 billion from Virgin Group, SoftBank, Coca Cola, Bharti Group, Qualcomm and Airbus; just announced an exclusive $190 million contract with Echostar subsidiary Hughes Network Systems to provide some of the terrestrial infrastructure necessary to distribute its internet services.

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Microsoft expands HoloLens headsets to new markets

Nearly three years on from Microsoft unveiling its HoloLens augmented reality headsets, the company today announced a major expansion of its availability: 29 more markets in Europe, nearly tripling the total number of countries where you can buy the device up to 39.

The news shows that while we don’t have a firm number of how many units have been sold, we do know that Microsoft is banking on the device, a non-immersive experience that lets you interact with visual digital images while still being able to see a room as you would normally, as a core piece of its future hardware and software efforts in a bid to compete against the likes of Apple and Google.

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Google says these tiny gadgets can protect you from hackers

Passwords aren’t perfect — anyone who’s had to reset one after a data breach can tell you that. But neither are biometrics, and every other “password killer” has largely fallen flat.

Ask around, and security experts will tell you that passwords aren’t going anywhere any time soon.

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The best PC hardware you can buy today

Looking to build the ultimate PC? If the price is no object, this is the hardware you want, from Intel’s Core i9 chips to Nvidia’s GeForce GTX 1080 Ti.


The heart of a PC is its processor. The ultimate choice is Intel’s 18-core Core i9-7980XE, and that should be an open ticket to be a high ranking member of the “PC Master Race” since this monster costs a cool $2,000-plus on Newegg. This monster reigns supreme in single-threaded performance, and since its 18 cores outnumber anything else currently available from Intel or AMD, the 7900X’s comes out on top of our multi-core tests, too.

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