These two commands will enable and disable your init script/service in system startup in Ubuntu 14.04:
Enable/add your service in startup
$ sudo update-rc.d docker defaults
Disable/remove service from startup
$ sudo update-rc.d -f docker remove
Security Researcher, DevOps, SRE
These two commands will enable and disable your init script/service in system startup in Ubuntu 14.04:
Enable/add your service in startup
$ sudo update-rc.d docker defaults
Disable/remove service from startup
$ sudo update-rc.d -f docker remove
This is how to play your favorite music with command line, no UI bullshit
$ sudo apt-get install mpg321 $ cd ~/Music/ ~/Music$ mpg321 Pink Floyd - Comfortably Numb.mp3
To list all deployments:
kubectl get deployments --all-namespaces
To delete deployment:
kubectl delete -n NAMESPACE deployment DEPLOYMENT
To get admin user token dashboard
kubectl -n kube-system describe secret $(kubectl -n kube-system get secret | grep admin-user | awk '{print $1}')
Allow master to run pod
kubectl taint nodes --all node-role.kubernetes.io/master-
To join master node
kubeadm join --token <some-token> <host-master>:6443 --discovery-token-ca-cert-hash sha256:<some-sha256-hash>
These command lines show you how to get your current public IP address just from terminal, just follow one of these way to get yours:
$ curl -s checkip.dyndns.org | sed -e 's/.*Current IP Address: //' -e 's/<.*$//'
Or, the shorter one:
$ curl ipinfo.io/ip
After holiday, I have many pictures that needs to be uploaded and all of them should have watermark. Watermark in image is one thing that I could’ve done it with photoshop when I was in school. But I’m not gonna waste my time to do that one by one instead I’m doing with this simple python script. The library that I used was PIL (Python Image Library).
This one I’ve done with custom font so you can choose your favorite font in your images. This script will be run two jobs to edit every images you have in one directory. The first thing it gonna resize your image based on what I already defined inside the script, you might want to change the basewidth variable if you want and after resizing, the script will put the watermark at the corner of your image.
For the font, I was just searching for the free license in dafont.com
Make sure you download the .ttf extension, not sure whether the other extensions will work.
#!/usr/bin/env python import PIL from PIL import Image, ImageDraw, ImageFont def resize(): image = Image.open('IMG_0495.JPG') width, height = image.size basewidth = 800 wpercent = (basewidth / float(image.size[0])) hsize = int((float(image.size[1]) * float(wpercent))) image = image.resize((basewidth, hsize), PIL.Image.ANTIALIAS) image.save('TES.JPG') def watermark(): image = Image.open('TES.JPG') width, height = image.size draw = ImageDraw.Draw(image) text = "Your credit written here" font = ImageFont.truetype('Downloads/Capture_it.ttf', 15) textwidth, textheight = draw.textsize(text, font) # calculate the x,y coordinates of the text margin = 5 x = width - textwidth - margin y = height - textheight - margin # draw watermark in the bottom right corner draw.text((x, y), text) image.save('TES.JPG') def main(): resize() watermark() main()
Missing mbstring library for php in Centos 6.9, solution:
$ yum install php-mbstring
Sometimes when you listen to music on youtube with very limited sound level after your volume level has reached maximum and you’re using piece of shit earphone. Just go with this command to extend the limitation sound level, it works on ubuntu 14.04:
$ pactl -- set-sink-volume 0 150%
be careful with maximum sounds, can be dangerous for your ears.
To connect host with specific key
$ ssh user@host -i mykey.pem