MBrownieBytes

A blog for software engineers, sys admins, devops, and the technically inclined.
How to guides, Tutorials, Tips and Tricks

  1. You are here:  
  2. Home

Blog

Valid local self signed certs

Details
Published: 26 June 2023

While developing web sites/applications locally, to facilitate development, you often use a local host name, such as 127.0.0.1, localhost, site.local, example.test, or sub.company.local.  While you can access the site/application using normal HTTP, sometimes the application is configured for secure HTTP i.e. HTTPS or you always want to force HTTPS no matter the environment (dev/qa/prod).  

However, ‘made up’ local host names such as example.test, site.local, site.dev etc can not use an external ssl certificate, as they cannot be accessed remotely to verify authenticity by a certificate authority (CA).  So typically one would create a self signed certificate.  But over time, browsers have restricted the acceptance of self signed certificates, resulting in a less friendly or impossible developer workflow.  So the next step would be to add your own CA to your local environment, but that can be tedious and error prone. Luckily, there is a utility which greatly simplifies the process, for linux, macos, and even windows - mkcert

“Using certificates from real certificate authorities (CAs) for development can be dangerous or impossible (for hosts like example.test, localhost or 127.0.0.1), but self-signed certificates cause trust errors. Managing your own CA is the best solution, but usually involves arcane commands, specialized knowledge and manual steps.

mkcert automatically creates and installs a local CA in the system root store, and generates locally-trusted certificates. mkcert does not automatically configure servers to use the certificates, though, that's up to you.”
https://github.com/FiloSottile/mkcert

 

To create a usable self signed ssl certificate using Windows, Nginx, and Laragon (a portable LAMP stack):
Download the latest mkcert for your OS (Windows in this case)
https://github.com/FiloSottile/mkcert/releases
mkcert-v1.4.4-windows-amd64.exe

Copy the file to a new dir
C:/laragon/bin/mkcert/
And rename to a generic mkcert.exe

 

Note, assuming you installed/extracted Laragon to C:/laragon

In a command window with Administrator Privileges (Run as Admin)

> cd C:\laragon\etc\ssl

 

Specify the destination of the CA cert

> mkdir C:\laragon\etc\ssl\mkcert

 

Set an temporary environment variable for mkcert to read

> setx CAROOT "C:\laragon\etc\ssl\mkcert"

 

By default, it would have be in you user directory

> C:\Users\<user>\AppData\Local\mkcert

 

Close the command window and re-open it so the environment variable can be read

In linux you might source ~/.bash_profile .. but windows

 

Test that the environment variable is indeed set

> cd C:\laragon\etc\ssl\

> echo %CAROOT%

C:\laragon\etc\ssl\mkcert

 

Create and install your local CA

> ..\..\bin\mkcert\mkcert -install

 

You will be shown a prompt warning you that you are doing what you want to do, add a local CA 

 

After reading, Click Yes

 Note, by default the CA key will be named rootCA-key.pem and the CA cert will be named rootCA.pem.
The names are hard coded in the project source main.go, if you want to compile the project.

 

You can view the CA via the Certificate Manager

Start Menu -> Run -> certmgr

Or

Laragon -> Menu -> Nginx -> Certificate Manager

Note, while Laragon does have its own CA which it can add, it does not seem to work with recent browser updates.

 

Click to Trusted Root Certification Authority -> Certificates

Scroll to find mkcert Computer\User@Computer> 

Note, you can delete it if you want by Right Clicking on and select Delete

 Now generate the SSL certificate, which will be signed by the CA you just added

> cd C:\laragon\etc\ssl

> ..\..\bin\mkcert\mkcert site.local "*.site.local"

Would create the SSL key and cert in C:\laragon\etc\ssl as 

site.local+1-key.pem and site.local+1.pem

 Rename the files, or specify names when creating:

 > ..\..\bin\mkcert\mkcert -key-file company.localhost.key -cert-file company.localhost.crt company.localhost *.company.localhost

Which would match

company.localhost
site1.company.localhost
site2.company.localhost

Or more generically

> ..\..\bin\mkcert\mkcert -key-file dev.localhost.key -cert-file dev.localhost.crt dev.localhost *.dev.localhost

Which would match

dev.localhost
site1.dev.localhost
site2.dev.localhost

 Note, most browsers do not support wildcards 2 levels deep ie don't use just localhost or test

 Note, Chrome redirects use of the .dev tld to HTTPS, as Google now owns the official .dev tld.  While using any domain name which you override in your /etc/hosts file should be ok, it is best to use a domain you actually own.  But if that is not practical, .test, .local, .localhost are the often provided alternatives.

Edit you Nginx or Apache config to add the SSL cert and key, and reload

 

Using the default website in Laragon as a working example 

C:\laragon\etc\nginx\sites-enabled\00-default.conf 

    listen 8443;
    Server_name site1.dev.localhost;

    # Enable SSL
    ssl_certificate "C:/laragon/etc/ssl/dev.localhost.crt";
    ssl_certificate_key "C:/laragon/etc/ssl/dev.localhost.key";
    ssl_session_timeout 5m;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv3:+EXP;
    ssl_prefer_server_ciphers on;

Note, if you are running another service on port 443, so choose another port, such as 8443.

 

Assuming you have added your local host name to /etc/hosts or 

C:\Windows\system32\drivers\etc\hosts 

127.0.0.1       site1.dev.localhost

 Viewing https://site1.dev.localhost 

Should result in a valid SSL cert. 

Enjoy your HTTPS, and develop away.


To install reinstall on a computer, or reinstall after deleting the mkcert CA

Copy the full Laragon dir, or the rootCA.pem at least

Set an temporary environment variable for mkcert to read

> setx CAROOT "C:\laragon\etc\ssl\mkcert"

Close the command window, re-open

Create and install your local CA

> ..\..\bin\mkcert\mkcert -install 


FireFox

Mkcert auto installs into chromium based browsers.

For FireFox, there are a few extra steps.

View where mkcert installed the CA certificate

> mkcert -CAROOT

in FireFox url, type in about:preferences#privacy

Filter options to ‘certificates’

click View Certificates -> Authorities -> Import

Select the rootCA.pem file, in the directory listed by the prior mkcert -CAROOT

The above used to be sufficient, for newer FireFox versions >= 112

There is an extra step to take

Within the certificate list, find the imported cert in the list; it will be in the middle listed under ‘mkcert’

Now click the Edit Trust button, and check ‘enable for websites’

 

Re-enjoy your HTTPS, and develop away.



-End of Document-
Thanks for reading

Bash script to delete merged local git branches

Details
Published: 22 May 2023
  • git
  • bash

When using git, overtime, your local copies of branches can grow and become burdensome to search through.  While you could manually delete 'old' branches, some of those branches may still be active eg not merged in yet.  It would be nice to have a bash script which would find merged branches older than N days and delete them.

First, list branches merged
> git branch --merged
# https://git-scm.com/docs/git

Then ensure to exclude your main branches: master, main, development
> git branch --merged | grep -v -E "\\*|\bmaster\b|\bmain\b|\bdevelopment\b"
# -v, --invert-match        select non-matching lines
# -E, --extended-regexp  \b word boundaries
# https://www.man7.org/linux/man-pages/man1/grep.1.html
 
Then to loop over those branches, use xargs to split the prior results
for k in $(git branch --merged | grep -v -E "\\*|\bmaster\b|\bmain\b|\bdevelopment\b" | xargs -r -n 1); do 
# xargs - build and execute command lines from standard input
# -n max-args, --max-args=max-args; exit if greater
# -r, --no-run-if-empty; do not run if no results
# https://www.man7.org/linux/man-pages/man1/xargs.1.html
 
Then for each branch, see if it has commits greater than N days ago
> git log -1 --since="$days days ago" -s $k
# git log, one line, since $days days ago, for branch $k
# https://www.git-scm.com/docs/git-log
 
If so, then delete the branch
> git branch -d $k
# https://git-scm.com/docs/git-branch
 
 
Full script below, with a confirmation prompt
#!/bin/bash
# delete merged local branches
days=90
found=0
# preview
# git branch --merged | grep -v -E "\\*|\bmaster\b|\bmain\b|\bdevelopment\b" | xargs -r -n 1
# list branches merged
# git branch --merged
# https://git-scm.com/docs/git-branch
# exclude master, main, development
# grep -v -E "\\*|\bmaster\b|\bmain\b|\bdevelopment\b"
# -v, --invert-match        select non-matching lines
# -E, --extended-regexp     \b word boundaries
# https://www.man7.org/linux/man-pages/man1/grep.1.html
# xargs -r -n 1
# -n max-args, --max-args=max-args; exit if greater
# -r, --no-run-if-empty; do not run if no results
# https://www.man7.org/linux/man-pages/man1/xargs.1.html
# git log -1 --since="$days days ago" -s $k
# gti log, one line, since $days days ago, for branch $k
# https://www.git-scm.com/docs/git-log
# delete branch
# git branch -d $k
# https://git-scm.com/docs/git-branch
echo "branches older than $days days:"
for k in $(git branch --merged | grep -v -E "\\*|\bmaster\b|\bmain\b|\bdevelopment\b" | xargs -r -n 1); do
  if [[ ! $(git log -1 --since="$days days ago" -s $k) ]]; then
    echo $k
    (( found++ ))
  fi
done
if [[ $found -eq 0 ]]; then
    echo "no branches found"
    exit 0
fi;
read -s -n 1 -p "press any key to delete $found branches older than $days days . . ."
echo ""
# run
for k in $(git branch --merged | grep -v -E "\\*|\bmaster\b|\bmain\b|\bdevelopment\b" | xargs -r -n 1); do
  if [[ ! $(git log -1 --since="$days days ago" -s $k) ]]; then
    git branch -d $k
  fi
done
 

Source: GitHub Gist

 
-End of Document-
Thanks for reading
 
 

Debug ReactJS with WebStorm

Details
Published: 28 March 2023
  • reactjs
  • ide

Instead of using console.logs, WebStorm can be used to debug your development builds of your React app. You can set breakpoints, and inspect your apps in real-time, greatly expediting and simplifying your debug experience.

 

WebStorm is an integrated development environment for JavaScript and related technologies. Like other JetBrains IDEs, it makes your development experience more enjoyable, automating routine work and helping you handle complex tasks with ease.

source: https://www.jetbrains.com/webstorm/

 

React is a declarative, efficient, and flexible JavaScript library for building user interfaces. ReactJS is an open-source, component-based front-end library responsible only for the view layer of the application. React is used to create modular user interfaces. It promotes the development of reusable UI components that display dynamic data.

source: https://www.geeksforgeeks.org/react-js-introduction-working/

source: https://react.dev

 

How To:

Open WebStorm, configure a JavaScript debugger

Run -> Edit Configurations

or 

Click the drop down near the run/debug icons, select Edit Configurations

 

 

Add a new configuration, click the + button

Choose JavaScript Debug

Change the url to match your development environment, often localhost:3000 

Save

 

Click the Debug icon, the green bug button, next to the green play button

WebStorm by default will launch a new Chrome instance

However, it will not have any of your plugins.

You can re-install all your plugins, or better, edit the browser configuration in WebStorm

 

 Customize browser config

File -> Settings -> Tools -> Web Browsers and Preview

Edit Chrome

Enable Use custom user data dictionary, and past in the path to your Chrome user data directory

Windows %LOCALAPPDATA%\Google\Chrome\User Data

Mac OSX ~/Library/Application Support/Google/Chrome

Linux ~/.config/google-chrome

source: https://chromium.googlesource.com/chromium/src/+/master/docs/user_data_dir.md#Windows

Additional information from WebStorm

source: https://blog.jetbrains.com/webstorm/2017/01/debugging-react-apps/

 

-End of Document-

Thanks for reading

Exclude Code from Defender

Details
Published: 25 April 2022
  • nodejs
  • php
  • windows
  • tweaks

If you are using Windows, or other OSes which have antivirus/malware scanners installed such as Windows Defender, you can increase the responsiveness and decrease the time taken for your code installs, transpiles, complies, etc by simply excluding your code from their scans.

Best practice, keep your versioned code in a common directory, such as

C:/Users/[user]/My Documents/ado/[repo-name]

or 

C:/dev/git/[repo-name]

And then simply exclude that directory from your antivirus/malware scanner(s).

An example for Windows Defender on Windows 10

After excluding your code directory, code installs such as npm, composer, nuget, maven, etc will not take as long and use much less resources eg cpu, disk i/o.

-End of Document-
Thanks for reading

  1. PHPStan - static analysis of PHP code
  2. Enable PHP 8 xdebug from the command line

Page 2 of 21

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

Search

Tags

php 21 git 10 windows 10 aws 9 nodejs 7 security 6 virtualbox 6 android 5 portable 4 redhat 4 ubuntu 4 react native 3 reactjs 3 docker 3 devops 3 nginx 3 bash 3 symfony 3 apache 3 ide 2

Most Read Posts

  • Handle HTTP 302 response from proxy in Angular
  • PHPUnit exceeds memory limit
  • Adding camera api to react native
  • Portable Java
  • Clear out old MSMQ messages

Older Posts

  • HDMI and Display Port versions
  • Useful Linux Commands
  • DevOps SysAdmin Tips for researching a slow or unresponsive app or system
  • DDEV for local development in containers
  • Valid local self signed certs
  • Bash script to delete merged local git branches
My Blog