Rip 3 seconds of audio from a video, starting from the 7 second mark:

ffmpeg -ss 7 -t 3.0 -i source.mp4 output.mp3

EX3400 is boot looping. The kernel cannot be found, reinstall is required.

Power off the EX3400

1) Download the appropriate image for the device (ex: "junos-install-media-usb-arm-32-15.1X53-D59.4-limited.img.gz")

2) Extract the image

3) Write the extracted image to a USB-device using dd with bs=1m or bs=1M depending on version

4) Insert the USB-device and power on the EX3400

5) Hit 5 for [M]ore options and 5 again for [B]oot prompt

6) Run lsdev and confirm device disk1s1a exists

7) Run set currdev="disk1s1a"

8) Run include /boot/loader.rc to reboot the device

9) Wait for the installation to complete - be patient.

Disable vmkusb module in ESXi 6.5 and switch to legacy stack:

esxcli system module set -m=vmkusb -e=FALSE

Reenable vmkusb:

esxcli system module set -m=vmkusb -e=TRUE

Either change requires rebooting of ESXi

Disable native driver and revert to sata-ahci:

esxcli system module set --enabled=false --module=vmw_ahci

Reenable native driver from sata-ahci:

esxcli system module set --enabled=true --module=vmw_ahci

./pyproxy.py --tcp -s 172.16.16.81:12345 -d domain.tld:12345 -v

Script source-code: download here

Use wget and perl to reboot a Netgear ISP provided CPE/modem/router from comandline. Replace IP-address and 'REALPASSWORD' with your own settings

id=$(wget --quiet -O- --http-user admin --http-password password http://192.168.100.1/RouterStatus.htm | perl -lne '/id=([0-9]+)/ && print $1'); wget --quiet --http-user admin --http-password REALPASSWORD --post-data 'buttonSelect=2' http://192.168.100.1/goform/RouterStatus?id="$id"

openssl pkcs12 -inkey certificate.key -in certificate.pem -export -out certificate.pfx