Self-signed SSL certificates not working with MAMP and Chrome
I use MAMP Pro for most of my PHP development and Chrome has annoyingly been blocking the self-signed SSL certificates MAMP generates, saying the certificate is not valid and “Your connection is not private”:
Thankfully, I found an easy solve to fix this. These steps assume you’ve created a host in MAMP. You’ll need to go to the SSL tab of the host you are trying to fix and
- Check the SSL button
- Click the self-signed certificate button.
- Fill in the fields in the dialog modal and click Generate
- You’ll be prompted to save the certificate. Choose whatever location you’d like.
- Click on the circle with the arrow to open the directory where the certificate was saved.
- In the finder window that opens, double click the .crt file (be sure it’s the same file name that’s in the SSL window in case you have multiple).
- In the Add Certificate window, click Add. I testing adding it to login and system and both worked, so add whichever you prefer.
- In the Certificates Window, double click the certificate. It’s easier to filter by name if you have a lot of items.
- In the next modal window, choose Always Trust from the dropdown.
- Close out the next confirmation window, and you’ll be prompted to authenticate with your mac login to save the updates.
Go back to Chrome, and reload the page and the certificate should work now:
How to get website average latency in BASH
I was working on a project today and wanted to be able to get the average latency for an API that I was working on. Performance is a concern because we’re running the API over a VPN, and then SSH tunneling over to another server. I wanted a quick way to do it and wrote a little bash function that will calculate the average for me. I couldn’t find an example on how to do this online so I’m sharing in case anyone else runs into the same issue.
This is tested on Mac only. Add these two functions to your .bashrc and do a shellupdate in terminal to load the latest, or just grab my dotfiles from my github: https://github.com/gregvarghese/dotfiles
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | curlb(){ curl -s -o /dev/null -w '%{time_starttransfer}\n' "$@" } # Usage: # latencyavg [# of times to run] [URL] function latencyavg() { time=0.00 for (( c=1; c<=$1; c++ )) do num1=$(curlb $2 -H 'Accept-Encoding: gzip, deflate, sdch' -H 'Accept-Language: en-US,en;q=0.8,ja;q=0.6' -H 'Upgrade-Insecure-Requests: 1' -H 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36' -H 'Connection: keep-alive' --compressed) echo "$c - $num1" time=$(echo "$time + $num1" | bc -l) done echo "Total Time $time" echo $(echo $time / $1 | bc -l) } |
Usage example:
1 | latencyavg 20 https://www.godaddy.com |
How to fix VMWare Fusion Pro 10 “Cannot find a valid peer process to connect to”
I recently got a new mac and was migrating a VMWare Windows Virtual Machine from my other computer. When starting the virtual machine, I received a random message from VMWare Fusion saying “Cannot find a valid peer process to connect to.”
The fix was rather simple as it was just Apple blocking VMWare from running. To fix it, follow these steps:
- Open System Preferences by searching in Spotlight or clicking the gear icon in the dock.
- On the top row there is an icon for Security and Privacy – Click that icon
- Near the bottom of the screen that appears the following statement
“System software from developer “VMWare, Inc.” was blocked from loading” - Click Allow
List of my must-have Alfred Workflows
Use a mac? You’ll want to grab Alfred App. I’m finding it an invaluable replacement for spotlight and the workflows allow me to supercharge my workflows. It’s so useful that I’ve purchased the Powerpack lifetime license.
In addition to the standard features, here are a list of the most useful workflows for dev/tech:
Kill process – by Nathan Greenstein (@ngreenstein)
I use it as an activity monitor for CPU usage, and from there I can easily force quit any process if needed. It’s easier to see all processes on the Alfred UI instead of opening Activity Monitor on your mac. There’s also the workflow Kill Application – by Sebastian Hallum Clarke (and also on his site you can find other cool workflows).
Timer – by Daniel Bader
I use this one a lot. It’s super simple and by writing “Timer” and the number of minutes, you can easily set a reminder. It’s great for anyone using the Pomodoro technique or even if you leave something on the stove and want to go back to work.
Copy SSH Public Key – By oldcai
This one saves me time when I need to deploy my SSH key on a new server. Type ‘pk [ssh key file name]’ and it’ll copy the ssh key to the clipboard.
Incognito – by Nedwood
I find myself using this when I need to test a page and bypass the cache. Type ‘incog [url]’ and it’ll launch a new chrome window in incognito mode.
Find Folder by Samvlu
Finds a folder by name. I find this is faster than spotlight in just about every search.
Smart Folders by Deanishe
List all the Smart Folders/Saved Searches (same thing) on your system and drill down into their contents. Works in much the same way as Alfred’s File Filter, but Smart Folders are also available outside Alfred and are a bit more flexible.
For example, you can configure a Smart Folder to show all video/audio/image files without having to specify each different filetype individually. If you already use Smart Folders, this workflow can save you the work of re-implementing them as File Filters.
What’s more, you can exclude specific filetypes with a Smart Folder, which Alfred cannot do.
Advanced Google Maps Search by stuartcryan
This workflow gives you some quick and dirty shortcuts into Google Maps:
Commands:
To Configure:
mapsethome <home address including street number, name, postcode> (i.e. what you would type into Google Maps)
mapsetwork <work address including street number, name, postcode> (i.e. what you would type into Google Maps)
Commands for Use:
maps <query> – Search Google maps for an address
dir <query> to <query> to <query> etc (seperate multiple addresses with ” to ” minus the quotes, and you will get a multiple location search)
dirfw Show directions from Work to address
dirfh Show directions from Home to address
dirtw <query> Show directions from query to Work address
dirth <query> Show directions from query to Home address
trafficw – Show traffic from Home to Work
traffich – Show traffic from Work to Home
StackOverflow Search by deanishe
If you use stackoverflow as much as I do, this is a must-have.
Date Calculator
I find myself needing to calculate differences between dates in my personal life a lot lately. This workflow saves me a lot of time to do that. Want to know how far Christmas is away in days? ‘dcalc 12-25-16 – now d’ returns the number of days (assuming you’re using the US short format like I am).
Wifi Control by miroman
All my Macbooks periodically have issues with wifi. I’ve never been able to figure out what’s causing it but I use Wifi Control to restart the wifi which allows me to connect successfully.
Bugnot by vitor
If you use bugmenot at all, this is a useful extension to get logins without loading a new tab. Type ‘bn domain.com’ and you’ll get a list of matching passwords to use.
ReportCrash High CPU & How to Disable reportcrash in Mac OSX
For a while now, all of my MacBooks have run extremely hot and the fans have gone nuts. While troubleshooting the issue, Activity Monitor showed that an app named reportcrash has run very high on the CPU and has killed my battery life. Force quitting the app didn’t help as it would start right back up in a few seconds and climb back to 80-100% usage of the CPU.
What is CrashReporter?
CrashReporter runs in any time an application crashes and it’s designed to saves the application state to aid developers in working out why the app crashed. Basically a process is launching, crashing (and invoking CrashReporter) and then re-launching, repeating this cycle never ending.
How to Identify What’s Crashing
To show which process is triggering this cycle and stop it, CrashReporter is pretty verbose in its logging which makes finding the problem app somewhat easier. Open up the console.app (/Applications/Utilities/Console.app) and look towards the end of your system.log to see what app is crashing.
Unfortunately for me, the problem is a driver by some company called EFI and getting the latest drivers didn’t resolve the issue. The next obvious solution was to disable reportcrash.
How to Disable ReportCrash
Fire up terminal and run the following commands to disable reportcrash:
1 2 | launchctl unload -w /System/Library/LaunchAgents/com.apple.ReportCrash.plist sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.ReportCrash.Root.plist |
How to Enable ReportCrash
If you need to reenable crash report, run the following commands in terminal:
1 2 | launchctl load -w /System/Library/LaunchAgents/com.apple.ReportCrash.plist sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.ReportCrash.Root.plist |
How to flatten a directory on Mac through terminal
Recently, I was handed a project with pre-built ANT scripts that zip folders up into individual directories. The zip files in each folder needed to be uploaded to an FTP site without the folder so having to navigate into each was a bit annoying and time consuming for 40 files.
If you find yourself in need of merge or flatten a folder/directory, use this snippet to flatten everything into a single directory. If a file exists with the same name, you’ll be prompted to overwrite or leave in the existing folder.
1 | find $PWD -mindepth 2 -type f -exec mv -i '{}' $PWD/ ';' |
In my case, there was an extra file generated within each folder that was not used and I didn’t want to be prompted 40 times to overwrite so changing the -i to -n will force files to be overwritten. I’d recommend using caution with this and only use it when you know the duplicate files don’t matter.
1 | find $PWD -mindepth 2 -type f -exec mv -n '{}' $PWD/ ';' |
How to stop CouchDB on Mac OS
I have been working on a proof of concept using CouchDB. After getting the proof of concept working, I spun up a digital ocean droplet and proceeded to setup CouchDB on the server. I went to enable the SSH tunnel so I could access the CouchDB Futon instance and promptly ran into an error because my local instance of CouchDB was using the same port, 5984. I had a lot of trouble finding out an easy way to stop CouchDB because the documentation in the Wiki wasn’t accurate:
1 2 | sudo launchctl unload \ /usr/local/Library/LaunchDaemons/org.apache.couchdb.plist |
As a workaround, in Terminal, run
1 | launchctl list | grep couchdb |
This will output something like:
99093 0 org.apache.couchdb.288008
Grab the highlighted portion and run
1 | launchctl stop "org.apache.couchdb.288008" |
Substitute the process name accordingly and you should be able to run the ‘launchctl list’ command again and see the process is no longer present.