nlienard’s gists

nlienard / Flow Control for INTEL NIC on FREEBSD

Created February 4, 2016 09:03

	Intel devices use sysctl to enable/disable flow control:

	#sysctl -a\|grep fc

	dev.em.X.fc:3
	dev.igb.X.fc:3
	dev.ix.X.fc:3


	# ifconfig ix0

nlienard / iscsi freebsd

Created February 5, 2016 18:37

	hy001

	# zfs create -s -V 50g -b 128k zroot/iscsi/lun_images01

	# vi /etc/ctl.conf

	auth-group ag0 {
	chap hy002 iscsiforever
	chap username1 anotherbigsecret
	}

nlienard / [OSX] Boot USB stick

Created February 5, 2016 21:21

	Convert the .iso file to .img using the convert option of hdiutil

	hdiutil convert /path/to/ubuntu.iso -format UDRW -o /path/to/target.img

	diskutil list

	diskutil unmountDisk /dev/diskN

	sudo dd if=/path/to/downloaded.img of=/dev/diskN bs=1m

nlienard / gist:9caa9accd9ba8a8fd485

Created February 6, 2016 08:28

Clone iohyve VM remotely

 zfs send -R zroot/iohyve/bichono@autorep-01312016_1454259712  | ssh 149.202.85.153 zfs recv -Fu zroot/iohyve/bichono

nlienard / gist:64bbfb3fba052e309ba8

Last active February 6, 2016 20:22

where is my memory ?

	root@alcsys-vm52:~# free
	total used free shared buffers cached
	Mem: 2058732 1952924 105808 10552 13764 127776
	-/+ buffers/cache: 1811384 247348
	Swap: 241660 101604 140056

	=> 105Mb FREE ??


	root@alcsys-vm52:~# atop \|grep MEM

nlienard / gist:754d83d8b998508c3d02

Last active February 6, 2016 23:43

OVH - Kernel générique qui marche

	Quand on installe Ubuntu 15 avec le manager OVH, l'installation se fait obligatoirement avec un noyau OVH.

	Pour repasser en noyau générique :

	1/ installer Ubuntu 15 via le manager OVH

	2/ Booter sur le kernel OVH (par default)

	3/ set un passwd root (nécessaire pour la console plus tard)

nlienard / gist:28f2b36c3a129df07309

Created February 10, 2016 14:48

	root@dnxovh-hy001:~# ceph-deploy uninstall node1 node2
	[ceph_deploy.conf][DEBUG ] found configuration file at: /root/.cephdeploy.conf
	[ceph_deploy.cli][INFO ] Invoked (1.5.20): /usr/bin/ceph-deploy uninstall node1 node2
	[ceph_deploy.install][INFO ] note that some dependencies will not be removed because they can cause issues with qemu-kvm
	[ceph_deploy.install][INFO ] like: librbd1 and librados2
	[ceph_deploy.install][DEBUG ] Uninstalling on cluster ceph hosts node1 node2
	[ceph_deploy.install][DEBUG ] Detecting platform for host node1 ...
	[node1][DEBUG ] connected to host: node1
	[node1][DEBUG ] detect platform information from remote host
	[node1][DEBUG ] detect machine type

nlienard / gist:ab5d057dcbb065dd194e

Created February 23, 2016 20:20

ZFS Duplicate ZPOOL remotely

	root@dnxsys-web001:~ # zfs snapshot -r zdata@snapshot_for_ovh
	root@dnxsys-web001:~ # zfs send -R zdata@snapshot_for_ovh \| ssh 164.132.147.90 zfs recv -vFd zdata

nlienard / gist:acaef35cdc6cba5368b5c67a6c1f1820

Created October 10, 2016 09:50

	root@inxovh-hy003 (rbx3):~# sgdisk -t 3:45B0969E-9B03-4F30-B4C6-B4B80CEFF106 /dev/sda

	***************************************************************
	Found invalid GPT and valid MBR; converting MBR to GPT format
	in memory.
	***************************************************************


	Warning! Secondary partition table overlaps the last partition by
	33 blocks!

nlienard / gist:4516755cdb6c39e89bb5b11b683dbd73

Created October 10, 2016 19:46

	# cat /etc/freebsd-update.conf
	# $FreeBSD: releng/10.2/etc/freebsd-update.conf 258121 2013-11-14 09:14:33Z glebius $

	# Trusted keyprint. Changing this is a Bad Idea unless you've received
	# a PGP-signed email from <[email protected]> telling you to
	# change it and explaining why.
	KeyPrint 800651ef4b4c71c27e60786d7b487188970f4b4169cc055784e21eb71d410cc5

	# Server or server pool from which to fetch updates. You can change
	# this to point at a specific server if you want, but in most cases

Nicolas Draneil nlienard