SYSTEMD – controls

Starting with Ubuntu 15.04, Upstart will be deprecated in favor of Systemd. With Systemd to manage the services we can do the following: systemctl start SERVICE – Use it to start a service. Does not persist after reboot systemctl stop SERVICE – Use it to stop a service. Does not persist after reboot systemctl restart…

Automatically passing ssh password in scripts especially to ESX where passwordless ssh is hard

First you need to install sshpass. Ubuntu/Debian: apt-get install sshpass Fedora/CentOS: yum install sshpass Arch: pacman -S sshpass Example: sshpass -p “YOUR_PASSWORD” ssh -o StrictHostKeyChecking=no YOUR_USERNAME@SOME_SITE.COM Custom port example: sshpass -p “YOUR_PASSWORD” ssh -o StrictHostKeyChecking=no YOUR_USERNAME@SOME_SITE.COM:2400 from :   This works better for me though for sshfs: echo $mypassword | sshfs -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no user@host mountpoint -o workaround=rename…

fail to mount ntfs in BSD

[root@ftp /mnt/test]# ntfs-3g /dev/da10s1 /mnt/test fuse: failed to open fuse device: No such file or directory kldload fuse That’s a missing module needs loading. nJoy 😉

Resizing a disk once the volume has grown on host in a VM (Ubuntu)

The disk will not automatically resize on many platforms once more disk space was made available. Particularly in Ubuntu 16.04 Rescanning the device for size maps : echo 1 > /sys/class/scsi_device/2\:0\:0\:0/device/rescan Then standard procedures to grow the fs apply. nJoy 😉    

Longevity and stability of sshfs

Just worth noting I had many arguments with other sysadmins and bosses over the stability and validity of sshfs as a shortcut to creating a bridge for transferring files for backup or adhoc moves   The following is the result of an rsync from one sshfs mount to another (from ESXi servers I only had…

Using ngrok with React based websites

The problem : When we have a react.js based site (hosted on port 8000) and ngrok it for development purposes we get Invalid Host Header The fix is to override the header on reflection: ngrok http 8000 -host-header=”localhost:8000″   That’s it 😉 nJoy

Nginx setting to allow wss sockets to connect

General idea of the config https + proxy pass + virtual host Nginx as a proxy causes a failure of wss:// connections to the backend server. add these parameters to the proxy section :   proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection “upgrade”; proxy_set_header Host $host; Voila’  !!! 😉 nJoy