Category Archives: PC

Linux : Loading jnlp with IcedTea Java browser plugin hang at x%

When trying to load a java “jar” (.jnlp)  file from Java Web browser plugin hang at x% and never complete. This is a common issue and require clearing the IcedTea Web cache. 1. Clear your Web browser cache and close it ; 2. Clear the IcedTea cache using the following command :

Then open… Read More »

Windows : How to open a port on firewall from command line (CLI)

Windows Firewall can be configured from the GUI (by using firewall.cpl UI console) and also using the command line. This quick tutorial will cover how to manipulate the rules from CLI to open, block a port and delete a rule. In  a nutshell, here is the command sample:

The rest of this article will… Read More »

PC : Secure Boot missing from BIOS option on Gigabyte Z390 Designare

If you have a Gigabyte Z390 Designare motherboard, you might be wondering how to enable Secure Boot in order to meet the TPM2 Windows 11 requirement. Browsed every section of the BIOS and didn’t found it? Most likely you have “CSM Support” option enabled. (Compatibility Support Module (CSM) is a feature of the UEFI firmware… Read More »

Category: PC

Linux : sar command return “Cannot open /var/log/sysstat/sa27: No such file or directory”

Attempting to use the SAR (sadc) command to lookup the historical system resources consumption metrics and got the following message? Cannot open /var/log/sysstat/sa27: No such file or directory Please check if data collecting is enabled Most likely data collecting is disabled (it is the default on several systems). You need to enable data collecting and… Read More »

Windows : Unable to merge cells within a table in Microsoft Excel

If you attempted to merge cells together within a table in Microsoft Excel, you may have faced the grayed out “Merge and Center” button issue. To work around this problem, do the following : 1. Select the cells that you want to merge 2. Right click on the selection 3. In the context menu, click… Read More »

Category: PC