Mindblown: a blog about stuff.
MPLS vs. SD-WAN
MPLS (Multiprotocol Label Switching) is a high-performance networking technique that directs data from one node to the next based on short path labels rather than long network addresses. Think of traditional IP routing like a traveler who has to stop at every intersection to look at a map and decide which way to go. MPLS…
Wavelength Division Multiplexing (WDM)
Wavelength Division Multiplexing (WDM) is the “prism” of fiber optics. It allows you to send multiple data streams over a single strand of fiber by giving each one its own “color” (wavelength). The variations (CWDM, DWDM, LWDM, and the likely intended FWDM) exist because of a fundamental engineering tradeoff: How much data can you pack…
Proxmox – TShoot LVM-thin
After performing complex LVM operations, you need specific commands to verify success and troubleshoot any potential problems. Here are the most valuable verification and troubleshooting commands for the LVM-Thin and Directory setup you just created: Verification & Status Commands These are the first commands you should run to confirm your work and check disk usage.…
Proxmox – LVM-thin setup
To ensure you start from a formatted disk, the first step is to wipe any existing partition tables and data headers. Then, you’ll proceed with the LVM steps. Assuming your new 3TB disk is identified as /dev/sdb (you must verify this with lsblk before proceeding), here is the complete, start-to-finish list of commands. Complete Storage…
Active Directory 2012R2 – How to Migrate to DFS Replication using the DFSRMIG command
To resolve the issue with the deprecated File Replication Service (FRS) and migrate to Distributed File System Replication (DFSR), you can follow these steps: First, ensure that your domain functional level is at least Windows Server 2008 or higher. This is a prerequisite for using DFSR. You can check the domain functional level using the…
Reset your WordPress password
Through MySQL Command Line Note: if you have a recent version of MySQL (version 5.x?) you can have MySQL compute the MD5 hash for you. Note that even if the passwords are salted, meaning they look like $P$BLDJMdyBwegaCLE0GeDiGtC/mqXLzB0, you can still replace the password with an MD5 hash, and WordPress will let you log in.…
RAC0225: Sending the test mail failed.
I have been trying to configure iDrac alerts for a while now. But I seem to be getting the same error over and over again, ‘RAC0225: Sending the test mail failed’. It turns out that when iDrac sends an email the FROM account is the following, as entered in the fields in iDRAC Settings>Network>Common Settings…
Best Android ebook reader
This is by far the best e-book reader with no advertisements that disrupt reading, or give you a heart attack as the developer states! https://play.google.com/store/apps/details?id=org.readera&hl=en No related posts.
Receive email Notifications when a user logs in to your Mikrotik Router
It is very usefull to be able to receive notifications when a user logs in to your mikrotik router. In some cases it helps spot a hacker or suspicious log-ins during off hours. (send log event to email) 1. Add an SMTP server for the router to use for sending emails /tool e-mail set address=smtp.gmail.com…
Block Brute Force on Microsoft RDP using Mikrotik Router
This is a good way to block Brute Force attackers on prot 3389 MS-RDP. The new RDP connection is added to rdp_stage1 address list for 5 mins The second time it connects adds it to rdp_stage2 address list for 5 mins The thrird time adds it to rdp_stage3 address list for 5 mins The fourth time…
Got any book recommendations?