Ever had to create an object from another object being super class of the first one? You could just copy each attribute from one to another but that’s pretty annoying if there’s a lot of attributes. I stumbled upon a generic way and like to share it.
I recently had an issue changing mac address on my MacBook Air. Here’s how to change mac address to a random one keeping first three digits (otherwise it won’t work). tl;dr: $ networksetup -getmacaddress en0 | awk ‘//{“openssl rand -hex 3” | getline mac; sub(“(:..){3}$”, mac, $3); print $3}’ | sed ‘s/://g; s/\(..\)/:\1/g; s/^://’ | […]
If you want to generate Let’s Encrypt SSL certificates for HTTPS communication for your Apache HTTP Server running as Docker container, just follow these steps.
If you want to have clickable subheadlines with auto scroll function on your WordPress blog you could do following. There are some plugins doing the same and much more but I thought they are kinda oversized. The little piece of code below does the trick.
Given: an Ubuntu server with central Git repository and connection via SSH and an Ubuntu client with local Git repository. Deposit user’s SSH private key id_rsa in ~/.ssh (aka /home/user/.ssh) chmod 0600 ~/.ssh/id_rsa to prevent other users reading user’s private key If you also want to use Git with root user: cp /home/user/.ssh/id_rsa /root/.ssh/ Connect […]
That’s my personal cheat sheet for using Docker.
To enable root access to some server do following steps on this server: # nano /etc/ssh/sshd_config Uncomment line permitRootLogin without-password and save file # service ssh restart Eventually set new password for root user: # passwd root
TortoiseSVN is supporting SSH authentication via Putty’s Pageant. Thus: Start Pageant Add key (.ppk file, e. g. generated from OpenSSH key) (Minimize Pageant) Start TortoiseSVN, e. g. Repo-browser Type in URL, e. g. svn+ssh://user@server/path/to/svn. Important: set user in URL (user@) Connection should work