Category: Other

How to capture VLAN tags

We may need to capture vlan tags during troubleshooting, the configuration method is summarized as follows. Switch side configuration Cisco switches can use Switched Port Analyzer (SPAN) to capture packets, and we need to...

Offline Install .NET Framework 3.5 On Windows Server 2016

I tried to install .NET Framework 3.5 on a Microsoft server, but the installation failed. The following error message appears in Server Manager. “Installation of one or more roles, role services, or features failed....

PCAP capture on ISE

ISE can generate PCAP capture very simply(Compared to SPAN), which is really useful for troubleshooting network issue.

How to configure NTP Server with Cisco switch

In my last post “How to configure NTP Server with Windows Server” I showed how to configure NTP Server with Windows Server. In this post I will show you how to use Cisco switches...

How to configure NTP Server with Windows Server

If you are a network administrator, you may face the situation of configuring an NTP server to synchronize time. There are many ways to configure an NTP server. Windows Server or NAS or even...

How to update your Cloudflare DNS record with docker

I have a Synology NAS, I often need to access it when I am traveling, and I don’t have a Static IP – Static IP that requires network provider support and requires additional expenses....