In order to use the old school method of POP3 (Yes there are some crazy systems still using this) you need to use a different one time password which bypasses the two factor authentication… The tricky part is where to find this setting!
Screenshot showing where to locate the App Password settings for POP3 configuration in Outlook
Always get confused with the bus speed of these devices, so here for reference…
Quick guide / cheatsheet with various ESXCLI commands specifically for ESX 7.0+
Enter maintenance mode:
esxcli system maintenanceMode set --enable true
Exit maintenance mode:
esxcli system maintenanceMode set --enable false
Restart management agents “ESXi host daemon” and “vCenter Agent” services:
/etc/init.d/hostd restart
/etc/init.d/vpxa restart
Restart management agents “All”:
services.sh restart
Reboot Host:
esxcli system shutdown reboot --reason Upgrades
Reference:
Restarting the Management agents in ESXi (1003490) (vmware.com)
In Server 2022 (And other versions) the “Configure Shadows Copies…” (Right Click option) does not display on ReFS formatted drives.
The workaround is to configure from “Computer Manager -> Shared Folders -> Configure Shadows Copies”
Rebooting APC/UPS management card
Quick steps (Cutdown version) to getting WiFi configured on Raspberry Pi Zero W (A little more involved than using Raspberry Pi 2/3/4 with physical ethernet cables)
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=GB
network={
ssid=”your_network_name”
psk=”your_wifi_password”
}
To convert from binary to Base64:
certutil -encode filename.cer newfilename.cer
To convert from Base64 to binary:
certutil -decode filename.cer newfilename.cer
Error when trying to connect to the APC UPS management GUI (This is probably only applicable on the older models and firmware versions, but lets face it there’s a shed load of these older units gathering dust at the bottom of the rack somewhere, they get missed unless they start bleeping!)
“Someone is currently logged into the APC Management Web Server. Please try again later”
Various CLI commands when managing Cisco devices (Because I don’t do them enough to remember)
#Show Status
sh int status
#Show Version Information
sh version
#Show Inventory
sh int status
After increasing a virtual machine VMDK size you need to also resize this partition in Windows.
This can be completed remotely using PowerShell. There are various methods to run this but I prefer to use “Server Management” and admin the machines from here. you can run “PowerShell” on a remote session to run the script below.
This process will increase the C:\ partition to use all space that has been allocated by VMware. (Replace -DriveLetter with the required drive)
There are various methods (this is just one of them)
Update-HostStorageCache $size = Get-PartitionSupportedSize -DriveLetter C Write-Output $size Resize-Partition -DriveLetter C -Size $size.SizeMax -Verbose Write-Output "Drive Extension Complete!" Exit-PSSession
Really basic benchmark conparison between M2 Sata and M2 NVME SSD:
Get dedup status:
Get-DedupStatus
Get dedup status formatted & additional info:
Get-DedupStatus | fl
Get dedup status for specified volumes:
Get-DedupStatus -Volume "D:","F:"
Show Dedup Metadata (How deduplication is being used) on the server:
Get-Dedupmetadata
Show Dedup Metadata for specified volumes:
Get-Dedupmetadata D:
Enable Dedup Job:
Start-DedupJob D: -Type Optimization -Full
Disable Dedup Job:
Start-DedupJob -Type Unoptimization -Volume <Desired-Volume>
Ref: https://docs.microsoft.com/en-us/windows-server/storage/data-deduplication/whats-new
After removing DFS shares on a server there may be some leftover files in the “DFSR” cache, this is a hidden location within the “System Volume Information”. This can be a tricky one to delete but can be completed using some CLI.
Take Ownership of folder
icacls "e:\system volume information" /grant Administrator:F
Remove Directory (Silent & whole directory tree)
rd "e:\system volume information\dfsr" /s /q
We are running Dell R620/630 servers with “Internal Dual SD Module” (IDSDM) for the VMware ESX installation.
Unfortunately SD card 1 recently developed a fault.
As the IDSDM is configured in a fail-over SD1 copies to SD2 therefore we had to swap the cards before performing the rebuild.
It is important to note a few IDSDM module behaviors: IDSDM White Paper
Mirror State Stored on the IDSDM module
The SD cards mirror state, along with the Disabled or Mirror mode for modular servers, is stored on the IDSDM module itself. This means that it is possible to move an IDSDM module between two systems and preserve the mirror; the BIOS will read the states from the cards during boot up and will reflect the state of the card in setup.
Master SD Card
The module design allows that either SD card slot can be the master; in the event of a tie between the two cards, then SD1 is picked as the master. For example, if two new SD cards are installed in the IDSDM while AC power is removed from the system, SD1 is considered the Active or master card in the mirror. SD2 is the backup card, and all file system IDSDM writes will go to both cards, but reads will occur only on SD1. If at any time SD1 fails or is removed, SD2 will automatically become the Active (master) card. The IDSDM module should not be serviced while AC power is present.
There’s a fairly quick and simple method to configure VPN from the Draytek to iPhone.
I’m configuring this on a Draytek 2860n-Plus but the same process applies to most Draytek interfaces.
If you don’t have a static IP then you can configure using a free DynDNS name from no-ip.org (Other dynamic DNS providers are also available)
This method is using L2TP with IPSEC. A guide to the various VPN types can be found on HowtoGeek
Draytek 2860 Setup
“VPN and Remote Access -> VPN and Remote Access -> Remote Access Control”
Enable “IPsec” & “L2TP” VPN Services (These may already be enabled by default)
Rough guide to data speeds
| Firewire400 | Firewire800 | USB2.0 | USB3.0 | SATA2 | SATA3 | SATA3.2 (SATAe) | |
| Theoretical Speed | 400Mbps | 800Mbps | 480Mbps | 5Gb/s | 3Gb/s | 6Gb/s | 16Gb/s |
| Theoretical Speed in MB | 50MB/s | 100MB/s | 60MB/s | 625MB/s | 300MB/s | 600MB/s | 1969MB/s |
Reference:
We have a company SharePoint site which requires authentication information before logging on. This is a pain as the information displayed on the initial screen of SharePoint does not need to be restricted (Company Intranet).
Login “Annoying” Prompt:
In order to remove this you can modify the option in I.E. to use local logon credential (domain PCs):
I get really frustrated that the Nextgen plugin for WordPress does not have a simple icon which allows a quick way to insert a “single” image from the gallery. The options in the “Add New Post” screen only seem to allow a whole gallery to be selected…
This is how to add one image to a post manually (provided you know the image ID)
There are some other shortcode options available here Nextgen Shortcode.
singlepic id=XXX float=
I usually configure JumboFrames on iSCSI devices. The quickest way to do this is with a direct Ethernet cable from iSCSI to Server (Configuring seperate LAN IPS for both devices)
To test that JumboFrames is enabled on the network cards I use the PING method and modify the frame size. Default packet sizes are 1500bytes (MTU).
192.168.1.45 (Is configured for Jumbo Frames) – Althought the Jumboframe MTU is 9000bytes there are some overheads in the packets therefore you need to use an MTU of 8972bytes
172.16.232.35 (Is NOT configured for Jumbo Frames) – You can see below the packets fail with “Packet needs to be fragmented but DF set”
