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Office 365 powershell tips

Connect to office365 $cred = Get-Credential -Credential $user Import-Module MSOnline Connect-MsolService -Credential $cred $msoExchangeURL = “” $session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri $msoExchangeURL -Credential $cred -Authentication Basic -AllowRedirection Import-PSSession $session

Copy zfs filesystems

Sometime I need to copy/migrate zfs file systems across a network ( backups ) or on the same server ( for testing or upgrades of single devices ). The process is pretty simple. Create a zfs snapshop zfs snapshot zfs-pool/zfs-volume@base Now send this snapshot to the device or remote system ( I use pv to show me the progress ) Local zfs send zfs-pool/zfs-volume@base | pv | zfs receive zfs-pool/new-zfs-volume Remote zfs send zfs-pool/zfs-volume@base | […]

Highly Available Redis Cluster

I’ve done some work on a design for a redis cluster lately, there’s a lot of info on the subject but it is in pieces and I am going to try and provide a complete document here for one of the ways to do this. Tools sentinel: redis’s own monitoring and availability tool, we will use it to monitor our master/slave nodes, sentinel will promote a slave to master when an issue arises. haproxy: a […]

Usb Serial, Mac os and a Cisco switch

List device names ls /dev/cu.* A list similar to this should show up. mba:~ root# ls /dev/cu.* /dev/cu.Bluetooth-Incoming-Port /dev/cu.Bluetooth-Modem /dev/cu.usbserial connect using cu cu -l /dev/usb.serial -s 9600 If you do not see a usb serial device, you can list all your usb devices with this command system_profiler SPUSBDataType Which in my case showed my Prolific usb adapter USB-Serial Controller D: Product ID: 0x2303 Vendor ID: 0x067b (Prolific Technology, Inc.) Version: 4.00 Speed: Up to […]

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