Speeding up your OpenVPN tunnel

Here are some settings to speed up the transmission rate through your OpenVPN tunnel: proto udp mssfix 0 fragment 0 mssfix: Even though MSS itself is a TCP feature, this OpenVPN option targets encapsulated UDP packets. It will change the MSS value of the TCP protocol inside the tunnel in such a way that after… Continue reading Speeding up your OpenVPN tunnel

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Categorized as Linux

A gateway to forward all traffic to a remote VPN server

Suppose you’ve setup a VM and configured it as a site-to-site VPN with OpenVPN, using iroute and staticclients. You are using this VM as a default gateway for other VMs and now want to forward all traffic from the VMs not through the default gateway‘s adapter, but through the VPN tunnel. Why would you want… Continue reading A gateway to forward all traffic to a remote VPN server

VMsvga2

If you’re running macOS with QEMU, you’ll notice that the UI might be slow. This is because, by default, QEMU will use a basic display adapter with low display memory (VRAM). There’s two ways to fix this problem: Pass-through your GPU with vfio Use another display adapter, such as VMsvga2 This post will focus on… Continue reading VMsvga2

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Categorized as OSX