Run the update command to refresh the repos: sudo apt update Pull any upgradeable packages: apt list --upgradable Install any outstanding updates: sudo apt upgrade -y Reboot server so its clean: sudo reboot Once the server is back up run the above again to catch any additional entries. Snapshot/backup
To create alias commands you need to edit this file: sudo nano ~/.bash_aliases Enter a command in the style of: alias new_name='old_command' For example: alias install='sudo apt-get install'
By default these limits are 50GB. To increase these to 100GB modify/create a GPO to set the following values: User Configuration-> Administrative Templates-> Microsoft Outlook -> Miscellaneous-> PST Settings The following 2 settings need to be modified: - Large PST: Absolute maximum size: 100000 -
Resize partition: sudo cfdisk Select the physical volume and resize and write before you exit. Extend PV physical volume: sudo pvresize /dev/sda3 Find the logical volume (LV Path): sudo lvdisplay Extend logical volume: lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv Get the name your LVM path: (e.g. /dev/
Edit your crontab list: sudo crontab -e Select your preferred editor (if you are prompted). Then add the following file at the bottom: @reboot python /home/usera/myscript.py Make sure the script is executable: sudo chmod a+x /home/usera/myscript.py
Take a snapshot or backup of the vCenter Server Appliance before proceeding. Note: If the vCenter Appliance is on the same ESXi hosts it manages. Connect directly to the ESXi host that it is located on to perform these steps. Reboot the vCenter Server Appliance. After the VCSA Photon OS
How to change the settings of password expiration policy: 1. Connect to the Port 5480 of your appliance and sign in as root. 2. Go to the menu Administrator of your appliance. 3. In the Password expiration settings section, click Edit and select the password expiration policy. 4. In the
Activate LCD: rw systemctl enable --now kvmd-oled kvmd-oled-reboot kvmd-oled-shutdown systemctl enable --now kvmd-fan ro To view the output outside of the OS we need to press the Fn+F8 ikey (on Dell laptops) to receive output from the HDMI connection. To resolve issues in BIOS screens (at least with Dell
You can add the user to the sudoers list to prevent the user from prompting for elevation (standard access or when using SSH keys). Run the command: sudo visudo At the VERY end of the file, enter the following (replacing user1 with your username): user1 ALL=NOPASSWD: ALL
List of default apps that can/should be removed. 3D Environment: Get-appxpackage -allusers *Microsoft.3dbuilder* | Remove-AppxPackage Get-appxpackage -allusers *Microsoft3DViewer* | Remove-AppxPackage Microsoft Defaults: Get-appxpackage -allusers *king.com.CandyCrushSodaSaga* | Remove-AppxPackage Get-appxpackage -allusers *Microsoft.WindowsFeedbackHub* | Remove-AppxPackage Get-appxpackage -allusers *Microsoft.ZuneMusic* | Remove-AppxPackage Get-appxpackage -allusers *Microsoft.BingNews* | Re
Options to set: * Disabling WDigest credentials caching. More info here: https://www.stigviewer.com/stig/windows_10/2017-02-21/finding/V-71763" * Disable AutoLogin * Enable always install elevated * Check is WSUS is using HTTP over HTTPS * Stop Service: SSDP * Disable SMB version 1 * Enabled SMB version 3 * Enabled SMB signing * Blocking
There are many reasons why you may need this value and in my case its for Okta. Connect to O365 and substitute the username for the user required: Get-MsolUser -UserPrincipalName "username@domain.com" | Select-Object ImmutableID
Linux
If you have let slip your patching routine with Ubuntu you can find yourself in a position where you can't get any updates or upgrade to the next release. Backup your existing sources.list file: sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup Update the
Windows
Open your terminal of choice and list the interfaces available: netsh interface ipv4 show subinterfaces Looking at the list find the name of the interface you want. In my example its Ethernet0: netsh interface ipv4 set subinterface "Ethernet0" mtu=9000 store=persistent The default MTU value should usually
Palo Alto
From the CLI: request high-availability state suspend From the GUI: Device > High Availability > Operational Commands – click Suspend local device Don't forget to enable the device again otherwise it won't be in the HA pool.
Linux
Find the interface you want using either command: netstat -i ifconfig Update the interface with your config (in this example eth0): sudo ifconfig eth0 10.1.1.6 netmask 255.255.255.0 Now set the default gateway using the following command (same interface as before): sudo route add default
raspberry pi
From the terminal (or SSH): mkdir /home/pi/.config/autostart Create the config file and enter the following: nano /home/pi/.config/autostart/kiosk.desktop [Desktop Entry] Type=Application Name=Kiosk Exec=/home/pi/kiosk.sh X-GNOME-Autostart-enabled=true Create the script the Pi will run at start-up: nano /home/pi/
Dell
Connect to the iDRAC IP using an SSH client and login using the username and password of the iDRAC console. To soft reboot the server the iDRAC is connected to just run the following commands: /admin1->cd system1 /admin1->reset If you have issues with the web console
Office365
Placing a mailbox on an indefinite hold means that mail items meeting the hold requirements will never be removed from the mailbox. This can result in the mailbox exceeding the Recoverable Items Quota, which could make the mailbox unusable or have strange errors (getting meeting invites for example). Location of
ESX
In the odd occasion when you need to enable this function from the CLI: Enter maintenance mode: esxcli system maintenanceMode set --enable true Exit maintenance mode: esxcli system maintenanceMode set --enable false
Palo Alto
Out of the factory the Management port is set to a static address of 192.168.1.1 Connecting your laptop and setting a manual IP on the same range allows you to access this interface. The default credentials are admin for both username and password. Once you log in,
APC
Having had the web interface error out the management card of the APC device could not be rest using the GUI. Since breaking out a serial cable is too much hassle there is a handy reset function on the back of the card itself. Two types of resets are available:
Office365
If you haven't done this already you need to install the necessary modules: Install-Module MSOnline This is the snippet of code I usually run to quickly connect to O365. function Connect-O365 { $UserCredential = Get-Credential -UserName "username@domain.eu" -Message "Username has to be in the format
Apple
Fix issues with Mac not being able to resolve webpages.