Tips and tricks - Revision history

Tony at 09:30, 17 April 2024

2024-04-17T09:30:08Z

← Older revision		Revision as of 09:30, 17 April 2024
Line 44:		Line 44:
	=Downlowd mp3 from youtube=		=Downlowd mp3 from youtube=
	youtube-dl -x --audio-format mp3 URL		youtube-dl -x --audio-format mp3 URL

			=Decimal to binary=
			echo "obase=2; $var" \| bc

Tony at 14:26, 13 April 2024

2024-04-13T14:26:07Z

← Older revision		Revision as of 14:26, 13 April 2024
Line 41:		Line 41:
	curl my.ip.fi		curl my.ip.fi
	and https://ifconfig.co/		and https://ifconfig.co/

			=Downlowd mp3 from youtube=
			youtube-dl -x --audio-format mp3 URL

Tony: /* Find your public IP */

2024-03-22T08:55:19Z

Find your public IP

← Older revision		Revision as of 08:55, 22 March 2024
Line 40:		Line 40:
	or		or
	curl my.ip.fi		curl my.ip.fi
			and https://ifconfig.co/

Tony: /* Find your public IP */

2024-03-22T08:53:13Z

Find your public IP

← Older revision		Revision as of 08:53, 22 March 2024
Line 38:		Line 38:
	=Find your public IP=		=Find your public IP=
	curl icanhazip.com		curl icanhazip.com
			or
			curl my.ip.fi

Tony at 09:58, 7 May 2020

2020-05-07T09:58:05Z

← Older revision		Revision as of 09:58, 7 May 2020
Line 35:		Line 35:
	In this case your scsi device is 7, so		In this case your scsi device is 7, so
	echo "- - -" > /sys/class/scsi_host/host7/scan		echo "- - -" > /sys/class/scsi_host/host7/scan

			=Find your public IP=
			curl icanhazip.com

Tony at 09:58, 23 December 2019

2019-12-23T09:58:01Z

← Older revision		Revision as of 09:58, 23 December 2019
Line 24:		Line 24:
	#		#
	print randomMAC()		print randomMAC()


			=Add disk to VM=
			cat /proc/scsi/scsi
			Attached devices:
			Host: scsi7 Channel: 00 Id: 00 Lun: 00
			Vendor: VMware Model: Virtual disk Rev: 1.0
			Type: Direct-Access ANSI SCSI revision: 02

			In this case your scsi device is 7, so
			echo "- - -" > /sys/class/scsi_host/host7/scan

Tony at 09:19, 26 August 2016

2016-08-26T09:19:48Z

← Older revision		Revision as of 09:19, 26 August 2016
Line 9:		Line 9:

	Note the "-t" which is required, otherwise you get "sudo: no tty present and no askpass program specified"		Note the "-t" which is required, otherwise you get "sudo: no tty present and no askpass program specified"

			=Generate random mac address=
			#!/usr/bin/python
			# macgen.py script to generate a MAC address for guest virtual machines
			#
			import random
			#
			def randomMAC():
			mac = [ 0x00, 0x16, 0x3e,
			random.randint(0x00, 0x7f),
			random.randint(0x00, 0xff),
			random.randint(0x00, 0xff) ]
			return ':'.join(map(lambda x: "%02x" % x, mac))
			#
			print randomMAC()

Tony at 12:39, 25 August 2016

2016-08-25T12:39:57Z

← Older revision		Revision as of 12:39, 25 August 2016
Line 5:		Line 5:

	Then you can run		Then you can run
	ssh -t someuser@remotehost "dd if=/dev/sdXX" \| dd of=/dev/sdXY		ssh -C -t someuser@remotehost "dd if=/dev/sdXX" \| dd of=/dev/sdXY


	Note the "-t" which is required, otherwise you get "sudo: no tty present and no askpass program specified"		Note the "-t" which is required, otherwise you get "sudo: no tty present and no askpass program specified"

Tony at 12:39, 25 August 2016

2016-08-25T12:39:44Z

← Older revision		Revision as of 12:39, 25 August 2016
Line 1:		Line 1:
	=Clone disk over ssh=		=Clone disk over ssh=
	On remotehost:		On remotehost:
	*have a user 'someuser' you can ssh to with key, so without password.		*have a user 'someuser' you can ssh to with key, so without password. This user must NOT be in wheel/sudoers/admin group!!!
	add a line "someuser ALL=(ALL) NOPASSWD: /bin/dd		add a line "someuser ALL=(ALL) NOPASSWD: /bin/dd

Tony: Created page with "=Clone disk over ssh= On remotehost: *have a user 'someuser' you can ssh to with key, so without password. add a line "someuser ALL=(ALL) NOPASSWD: /bin/dd Then you can run..."

2016-08-25T11:24:21Z

Created page with "=Clone disk over ssh= On remotehost: *have a user 'someuser' you can ssh to with key, so without password. add a line "someuser ALL=(ALL) NOPASSWD: /bin/dd Then you can run..."

New page

=Clone disk over ssh=
On remotehost:
*have a user 'someuser' you can ssh to with key, so without password.
add a line "someuser ALL=(ALL) NOPASSWD: /bin/dd

Then you can run
ssh -t someuser@remotehost "dd if=/dev/sdXX" | dd of=/dev/sdXY

Note the "-t" which is required, otherwise you get "sudo: no tty present and no askpass program specified"