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Port Scanning with NMAP Commands
Scan All TCP Ports with Range We can specify the port range with the -p option. As we know TCP port numbers are between 0 and ...
Reset Office Licensing and Fix "Couldn't Verify Microsoft 365 Subscription" Errors
If you encountering registration and verification errors with a 365 installation, enter the following commands in a command prompt to list and deactivate office licenses ...
Enable Relay and Rewrite Sender for Postfix in Plesk for MS 365 or Google Workspace
See the following tutorial for enabling relay and sender rewriting for Plesk and Postfix. Rewrites are important when relaying via 365 as you must use ...
Generate a Self Signed SSL Certificate with Powershell
Enter the following powershell command. This will place a certificate in the "Personal" store for the Computer. Change the AddYears variable as needed. New-SelfSignedCertificate –DnsName my.fqdn.com -NotAfter ...
Delete Old Files and Folders/Directories with Powershell
Use the following powershell script to automate purging of old files (i.e. delete-old.ps1). Simply change the path at top and the desired age to delete. $limit ...
Fix AD DNS and Quickbooks Port Conflicts: Add Excluded Ports to Active Directory Server Hosting
Running Quickbooks database server on a modern Windows AD server requires you add an excluded port range to prevent the DNS server from occupying these ...
Perform a full IPv6 reset on EdgeOS
Enter the following commands in the cli to reset the dynamic IPv6 interface. release dhcpv6-pd interface eth0delete dhcpv6-pd duidrenew dhcpv6-pd interface eth0 ...
gvlog2em: Email GhettoVCB Logs via Windows Schedule Task and SMTP
We developed the attached Windows batch file for use with VMware and ghettoVCB. When used in conjuction with ghettoVCB's log file, it will: Pull the logfile ...
Fix L2TP Error 87, SSTP Error 720, Failed VPN Connection on Windows 10/11
This happens from time to time in Windows. I'm writing this because it just happened to one of our internal systems where L2TP had been ...
Prune / Delete Backups with Windows Server Backup
Enter the following command to keep 100 versions of backups online. You can change the number to whatever is desired in terms of retention. wbadmin delete ...
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