postfix no local interface found

When starting postfix it failed with following error To fix, edit /etc/postfix/main.cf Find Replace with See postfix

subprocess installed post-installation script returned error

When installing software on Ubuntu, i get following error. To fix this, run Replace PACKAGE_NAME_HERE with actual package that fail.

cdn

https://aws.amazon.com/cloudfront/ https://bunny.net/ https://www.fastly.com StackPath CDN https://www.keycdn.com https://www.5centscdn.net – $50 per month for 3 TB Traffic. Used by safaritvchannel.com for video

update-alternatives

Set default editor in Ubuntu To change vi editor run To display current vi config, run

tmux

Auto Attach to tmux session on SSH SSH Agent forwarding with tmux tmux create new window on current directory run

apt doesn’t support architecture i386

After adding facebook hhvm repository on Ubuntu 16.04, i get following error when running “apt update” command. This is fixed

add-apt-repository

add-apt-repository command can be used to add repository in ubuntu. To install, run Example

rvm

rvm is ruby version manager. Allow you to have multiple ruby version. To install rvm, run To install a ruby

Disable WordPress wp-cron.php

WordPress run its sheduled tasks using wp-cron.php, this get called every time visitor visits web site. This is not efficient

rsync

Restart rsync on failure Bandwidth Limit on rsync Split Large file into smaller files Run rsync if not running using

serverless

Serverless is your toolkit for deploying and operating serverless architectures. Focus on your application, not your infrastructure. https://www.serverless.com https://openwhisk.apache.org/

Kubernetes

Easy Kubernetes setup on Ubuntu with microk8s Kubeapps https://kubernetes.io/docs/tutorials/hello-minikube/ Install Minikube in Ubuntu kubectl kubectl Kubernetes scale a deployment Google