Extending LVM space in Ubuntu

Extending LVM space in Ubuntu https://ift.tt/N6hBAuD Did you ever install Ubuntu Linux with the default LVM (logical volume manager) partition layout and give it a really small disk size to begin with? This usually happens while setting up an EC2 instance in AWS, since the root volume gets 8 GB EBS storage by default. After […]

Using Wireshark to Analyze and Troubleshoot Hyper-V Networking

Using Wireshark to Analyze and Troubleshoot Hyper-V Networking https://ift.tt/boYTWzg Networking problems frequently challenge administrators. Introducing a virtualized switch to the mix adds another layer of complexity and multiple failure points. We can use the popular Wireshark tool to analyze traffic and uncover problems. Requirements for Success with Wireshark First, you need the software. You can […]

Protect Your Exchange Servers

Protect Your Exchange Servers https://ift.tt/ZPkt5Gg We’ve said it before, we’re saying it now, and we’ll keeping saying it: it is critical to keep your Exchange servers updated. This means installing the latest available Cumulative Update (CU) and Security Update (SU) on all your Exchange servers (and in some cases, your Exchange Management Tools workstations), and […]

January 2023 Exchange Security Updates

January 2023 Exchange Security Updates https://ift.tt/23JNQMv On January 10, 2023, Microsoft released new Security Updates for Exchange 2013 CU23, Exchange 2016 CU23 and Exchange 2019 CU11 and CU12. In this Security Update, the following CVEs with severity rating ‘Important’ are fixed: CVE-2023-21745 – Microsoft Exchange Server Spoofing Vulnerability (Spoofing) CVE-2023-21761 – Microsoft Exchange Server Information […]