Steve Borba

My notes, I hope they help you, feel free to comment/add to them

Author: sjborbajr

hostapd

I have a linux firewall/router that has a wireless adapter in it, and I wanted to use it for an AP too. The way I did this allowed me to use it as an AP and a client, which may not be the preference for everyone, but I like to know all the options. Here […]

systemd-networkd plus vrf

I built a Linux router/firewall with Arch when I found that systemd has it’s own networkd built in. I also wanted to have complete separation of the “management” interface/routing so I could stop using NAT – and found it is in systemd and kernel 4.8+ (using 5.0.6-arch1). Here is how I found worked well: Here […]

Arch Install

So I decided I was going to finally try Arch. I was told many times it was too hard and I shouldn’t attempt it unless I was willing to invest a lot of time… It’s not that hard, especially for me because I had done a more difficult version when I setup an Ubuntu server […]

Powershell Can Talk

I was working on some powershell scripts and my son came into the room and asked me if I could get the computer to talk to him, so I had to figure out how to do it: Add-Type -AssemblyName System.speech $speak = New-Object System.Speech.Synthesis.SpeechSynthesizer ForEach ($Voice in ($speak.GetInstalledVoices() | % {$_.VoiceInfo.Name})) { $speak.SelectVoice($Voice) $speak.Speak(“I am […]

Capture at ESXi Host

With everything becoming virtual, we get more tools, but that means more things to remember. These are my notes for a capture from an ESXi host. First lets look capture at the uplink, we need to find which port: esxcfg-nics -l Which gives us something like this: Name PCI Driver Link Speed Duplex MAC Address […]

Troubleshooting Filter

Here is a quick filter when you start troubleshooting with someone and pretty much all they know is their name (change the start time): ( receive_time geq ‘2018/12/21 12:00:00’ ) and user.src eq sborba and ( !action eq allow or (proto eq tcp and !session_end_reason eq tcp-fin ) or ((proto eq icmp or proto eq […]

My QoS

I use Google Fi and I want to make sure phone calls get first priority, then I moved my wife and my devices up (queue 4 is default), then knocked guest down and capped them at 5mb/s up/down, but I wanted to make it full speed if I am using the vpn from the guest […]