Keep Services Available During a SLES 15 SP5 to SP6 Upgrade
SLES 15 SP5 can migrate online to SP6, but each node must reboot. Use a tested rolling upgrade or blue-green cutover to keep workloads reachable.
Freezing rows and columns in Excel helps you get a clearer overview of statistical tables with large data. In some cases, you do not see the option to freeze columns or rows, which affects the document processing and overview of the data table. If you encounter problems with freezing columns/rows in Excel, refer to the fix in the article below.
1. Check if you are using the Split Excel tool?
The first solution is to check if you are using the Split feature in Excel . These two features, if used together, will cause an error.
We access the data table, then click on the View tab and click on the Freeze Pane feature . If it is fixed or frozen, click on Unfreeze Panes to cancel and start over.

2. Check for hidden rows in Excel
If the data table has hidden rows, then using the feature to freeze rows or columns will also cause problems. Please check the data table again and then unhide that row or column.
3. Change the mode to default on Excel
If you are using a view other than the default, the option to freeze rows or columns in Excel may be completely disabled. Click the View tab again, then click Normal in the Workbook Views section.
4. Unprotect Excel worksheet
In some cases when you receive data from other parties, they have set up worksheet protection , freezing rows or columns. If other features other than freezing cells do not work, then you should unprotect this worksheet.
Click on the Review tab then click on Unprotect Sheet to unprotect the worksheet.
5. Delete Macros in Excel
If you accidentally create a macro that prevents freezing of columns and rows, then whenever you run this macro, the freezing of rows and columns in Excel will not work. Then you need to check this macro again.
We click on the View tab and select Macros , then click on the Macro to edit .
In the VBA window with the macro code. Check if there is a line ActiveWindow.FreezePanes = False then delete it.
SLES 15 SP5 can migrate online to SP6, but each node must reboot. Use a tested rolling upgrade or blue-green cutover to keep workloads reachable.
Use SUSE’s supported STIG profile to scan SLES 15, test remediation, review remaining findings, and retain assessment evidence.
Trace a failed Cockpit connection through DNS, port 9090, the systemd socket, firewalld, TLS, and login settings using current SUSE guidance.
Create a redundant Ethernet connection on SLES 15 with YaST and Wicked, configure active-backup bonding, and verify both ports and failover.
Turn an existing SLES 15 system into a reviewed AutoYaST profile, validate it, and use it to deploy a test server with fewer manual steps.
Install the SLES 15 KVM and libvirt tools, enable the right host service, and configure selected virtual machines to start after a reboot.
Use systemd jobs and the previous boot journal to locate a slow service, mount, or storage dependency, then correct it without masking the cause.
Use firewall-cmd to inspect the active zone, allow HTTP safely, preserve SSH access, and verify that the rule survives a reload on SLES 15.
Trace a PAM failure to its service, account policy, or identity provider, then repair the right SLES configuration while preserving a working admin session.
Trace a failed kernel module at SLES startup, correct an obsolete boot entry or repair the required driver, and verify the next boot.