This board is a tricky board. 4GB RAM and above behave in a weird manner in Linux. It appears that PCI 32bit mapping doesn’t work correctly under Linux. To allow Linux to work on this hardware without failure (such as kernel crush during startup), you must follow these three simple guidelines: 1. Spread the memory…
Problem as follows: A Linux server is connected to a 1Gb/s LAN using 1Gb/s interface. I was told that SSH to the machine fails with “socket error” when done from Windows/Putty. One of the tests was done using Linux/ssh client, and it went fine. A switch was replaced, and other methods of detection showed weird…
Problem: Two Linux servers (RHEL4) running NFS Server in High-Availability (failover) mode. When failovering the resources, an NFS client can continue to work. When failing back, the NFS client times-out for 5+ minutes. Further problem information: While using RHEL3, that same (exact) configuration worked flawlessly. Solution: set NFS options to UDP instead of TCP. Explanation:…
While trying to install RHEL 4 on VMware ESX 2.1 I’ve had the pleasure of seeing Linux installation which was unable to detect disks. A quick search in VMware’s web site resulted in a download page for RHEL 4 Update 2, which, unfortunately, wasn’t the version I was using. Before running around and searching the…
I’ve been under a huge trackback attack, and, to be honest, closed the whole comment mechanism by a mistake. It is now announced as open. I’ve noticed some of the later entries were to my ML110 and Linux post. Now, with comments available, you can feel free to ask for clarification, if needed. Cheers.
I will discuss the issue of placing a Linux machine as a router, and some special cases where things might play a bit different. The most common scenario is of placing the Linux as some sort of PPP or DHCP-via-cables router. It might look like this: In this picture, the Linux machine actually recieves, via…
