Run Tailscale on macOS Mojave 10.14
I have a photo tool that will not run on any macOS newer than Mojave, so I dug out an…
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Using cURL to get just the HTTP status code
There are a few ways to accomplish getting just the HTTP status code for a URL using cURL, but many…
Test Network Quality from macOS with results similar to Fast.com
Excellent tool to quickly test the current network’s download and upload speeds. % networkQuality ==== SUMMARY ==== Upload capacity: 10.767…
Time Machine backups ignoring NPM modules
My Time Machine backups started taking an insane amount of time to complete. After some research, I was able to…
Send Docker container traffic through second VNIC on Oracle Cloud Compute Instances
I have a need to route all traffic to a running Docker conainer through a second network interface card (NIC)…
Grep stderr to suppress warnings in crontab entry
I needed to setup a crontab entry to restart a node process every week after Let’s Encrypt renewed my certificate.
Converting any binary to base64 using FileReader and Blob
To base64-encode a Uint8Array with arbitrary data (not necessarily UTF-8) using native browser functionality: const base64_arraybuffer = async (data) =>…
Locking and Unlocking a file in macOS from the cli
To lock the file: chflags uchg {file path} To unlock the file: chflags nouchg {file path} Keywords: lock, unlock, command…
Command line batch file rename with regex
for file in A2B*.bif; do mv "$file" "${file//A2B/a02b}"; done make lowercase: for folder in *; do mv -nv "$folder" "`echo…
Make iPhone HDR video not washed out in macOS and Photos
Install macOS iMovie 10.2 or later or iOS iMovie 3.0 or later Bring the clip into a new iMovie project…
git get list of changed files
git diff --name-only <SHA, tag start> <SHA, tag end> Or with the actions performed: git diff --name-status <SHA, tag start>…
Using `curl` to check a TLS certificate on a websocket (`ws` or `wss`)
Checks the TLS cert on the connection: curl -v \ --insecure \ --include \ --no-buffer \ --header "Connection: Upgrade" \…
Permanent shell history in zsh
I like to keep a permanent record of my shell commands so I can search back through them later. This…
Get hard drive serial number on RAID with storcli / megaraid
Error message received: ``` Ctl Model Ports PDs DGs DNOpt VDs VNOpt BBU sPR DS EHS ASOs Hlth 0 LSIMegaRAIDSAS9260-8i…
Preserving newlines / line breaks in BASH
declare f="fafafda adffd adfadf adfafd afd" echo $f echo "vs" echo "$f" Output: $./above fafafda adffd adfadf adfafd afd vs…
Hide object keys when console.log-ging in JavaScript
When doing a console.log on an object, you can overwrite the inspect prototype key to hide anything you don’t want…
Moving a Presearch Node to Another Server
In order to move your Presearch node to a new server, and retain any grandfathered status and node stats, you…
Backup Presearch Node Security Keys
You’ve had your nodes up and running since before the new 2000 PRE minimum stake. Or you want to be…
Parallel SSH / PSSH: Manage Multiple Presearch Nodes at Once
OK, so you wanna run multiple Presearch nodes. Let’s see how we can make it a bit easier. Sometimes, you…
Running Multiple PreSearch nodes on one host using multiple IP addresses
nano /etc/sysctl.conf change/verify net.ipv4.ip_forward to = 1 For each IP address (change the number after the : to the next…