Cisco VPN dropping connectino/RDP

“sysopt connection preserve-vpn-flows

iPhone Secret Codes

 Field Test Mode- *3001#12345#*, Call.

Get IMEI- *#06#

Get Data Usage- *3282# or #3282

Bill Balance- *225# or #225 or #225#

Exchange Issues with Updates

Reinstall CU 23-
.\setup.exe /m:upgrade /IAcceptExchangeServerLicenseTerms

Windows Update Fails, error 80072efe

Windows Update Fails with error 80072efe.  Looking at get-windowsupdatelog, you see windows unable to access a URL that begins with sls.update.microsoft.com.

If you open https://sls.update.microsoft.com in internet explorer, you this page can't be displayed.

SOLUTION-

Open HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Cryptography\Configuration\SSL

Delete Functions key. Reboot.

You're welcome.  This took me FOREVER to find.

Exchange HAFNIUM Vulnerability - Consolidated Information

 Information on Exploit-
https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/

Alternate Mitigation-
https://msrc-blog.microsoft.com/2021/03/05/microsoft-exchange-server-vulnerabilities-mitigations-march-2021/

Script to check server-
https://github.com/microsoft/CSS-Exchange/tree/main/Security

Microsooft Safety Scanner-
https://docs.microsoft.com/en-us/windows/security/threat-protection/intelligence/safety-scanner-download

How to reset Windows Update

net stop wuauserv 

net stop cryptSvc 

net stop bits 

net stop msiserver 

del /f /q "%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Downloader\qmgr*.dat" 

del /f /s /q %SystemRoot%\SoftwareDistribution\*.*  

del /f /s /q %SystemRoot%\system32\catroot2\*.* 

del /f /q %SystemRoot%\WindowsUpdate.log

net start wuauserv 

net start cryptSvc 

net start bits 

net start msiserver 

You cannot register RHEL, you get rhsm.connection.RestlibException: HTTP error (401 - Unauthorized): Service not available, please try again later

 You cannot register RHEL, you get rhsm.connection.RestlibException: HTTP error (401 - Unauthorized): Service not available, please try again later

subscription-manager register --username your_username --password 'your$password'

subscription-manager attach --auto

To re-register-

Un-register the system :

sudo subscription-manager remove --all
sudo subscription-manager unregister
sudo subscription-manager clean

Re-register the system :

sudo subscription-manager register
sudo subscription-manager refresh

Search for the Pool ID :

sudo subscription-manager list --available

Attach to subscription :

sudo subscription-manager attach --pool=<Pool-ID>

Clean YUM and cache :

sudo yum clean all
sudo rm -r /var/cache/yum

Update the resources :

sudo yum upgrade