Just a repost to remember: How to install VirtualBox Guest Additions on a GUI-less Ubuntu server host
Install VirtualBox Guest Additions on a GUI-less Ubuntu server host
on Category: DevOps
on Remember: Clear hsts from chrome
on HSTS is for security, I get it. But it can be so fucking annoying. Here is how to clear it for specific domains: superuser: How to stop an automatic redirect from “http://” to “https://” in Chrome
Allow jenkins user to sudo
on This is just a quick repost of RUN A SHELL FROM JENKINS USING SUDO (UBUNTU) Disclaimer: This is UNSAFE and you should NEVER do it unless in a protected, shielded and non-public-accessible dev environment. This is not even safe enough for a permanent testing environment.
Disabling HSTS for any domain
on Google has HSTS and some domains fall under it automatically. This makes Chrome automatically use HTTPS instead of HTTP. As I often work on local/development/testing environments in internal, protected networks HTTPS is not necessary. Yet Chrome forces me to HTTPS everytime anywas. This thread to the rescue: How to stop an automatic redirect from “http://”… Continue Reading Disabling HSTS for any domain
A script to test SMTP
on This is a nifty script I found to manually test SMTP servers: Script for testing SMTP with Telnet
Export Website Certificate from Chrome on OSX
on Sometimes there are problems to export a website certificate that is not trusted by one of the major CAs (self-signed or development certificates for example). Usually you’d open the certificate details in Chrome, then drag and drop the image icon to any folder on your computer (for example your Desktop). Then you’d double click it and import… Continue Reading Export Website Certificate from Chrome on OSX
Add root ca cert to docker-machine
on When creating new docker-machine Docker nodes, one needs to add necessary root CA certificates to them in order to let them communicate with SSL protected services. The easiest, if manual, method is to copy the ca certificate (in .pem format) to /var/lib/boot2docker/certs on EVERY swarm node (if running in swarm mode).
Getting a sensible S/MIME Cert
on What the shait this has been annoying… Well, here is the bottom line: Issue Your Own Self-Signed S/MIME Certs with OpenSSL by using these two shell scripts: makeauthority.sh makecert.sh
Reminder: Make Docker trust certificates
on According to play-with-docker.com you can trust a self-signed cert by doing the following: If you are running the registry locally, be sure to use your host name as the CN.To get the docker daemon to trust the certificate, copy the domain.crt file. Make sure to restart the docker daemon. The /dev/null part is to avoid the output… Continue Reading Reminder: Make Docker trust certificates
Docker: TaskNuke remove those annoying orphaned tasks from a network
on The setting: $ docker network rm myNetwork Error response from daemon: rpc error: code = FailedPrecondition desc = network kny0nsuae9ymnpzjzufrefn9a is in use by task iczzsz7yrrafhn08y1slnhr8l The solution: $ docker pull dperny/tasknuke! $ docker run -v /var/run/docker/swarm/control.sock:/var/run/swarmd.sock dperny/tasknuke iczzsz7yrrafhn08y1slnhr8l iczzsz7yrrafhn08y1slnhr8l The glorious source: success.docker.com – How to force remove an orphaned task from a network