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RKE2 with Rancher - Disaster Recovery Guide
18 min readRKE2 with Rancher - Disaster Recovery Guide Introduction The purpose of this guide is to provide a comprehensive guide for disaster recovery of RKE2 clusters managed by Rancher. …
Resolving the Cert-manager Bug: Unexpected EOF Lockup Issue
3 min readCert-manager has had the unfortunate luck of having a bug that causes it to lock up. This blog post will discuss how to resolve this issue and provide a workaround solution for …
Go For Fun: Sequence Breaking using For
7 min readUsing early return is a well-known Go programming language trait. A function must return early, as soon as possible, whenever it encounters errors. That way, there is only one …
Using a resized block volume in Longhorn.IO
1 min readFor my RKE2 clusters, but because I’m running on physical servers (3 x Dell R720xd with 12x3TB SAS drives), I have to use Longhorn.IO for storage. I have a few block volumes that I …
Fixing Longhorn Volumes That Refuse to Attach
6 min readFixing Longhorn Volumes That Refuse to Attach I’ve been using Longhorn for quite some time now, and while it’s an impressive storage solution for Kubernetes, it’s not without its …
Understanding 'TCP Segment of a Reassembled PDU' in Wireshark
3 min readUnderstanding ‘TCP Segment of a Reassembled PDU’ in Wireshark Wireshark often marks TCP packets with the label “TCP segment of a reassembled PDU.” This annotation can seem …
How to Use tcpdump to Capture Incoming Traffic
1 min readHow to Use tcpdump to Capture Incoming Traffic If you need to capture incoming network traffic using tcpdump, the most reliable option is to use the -Q option as follows: tcpdump …
How to Filter MAC Addresses Using tcpdump
1 min readHow to Filter MAC Addresses Using tcpdump Suppose you’re using tcpdump for network monitoring and must filter traffic based on MAC addresses. In that case, you can utilize the …