Well, tricks is not the right word to describe advanced shell scripting usage, however, it does make some sense. These two topics are relevant to Bash version 4.0 and above, which is common for all modern-enough Linux distributions. Yours probably. These ‘tricks’ are for advanced Bash scripting, and will assume you know how to handle…
This post will describe the process of placing SSH keys using the internal ‘systemshell’ command of NetApp. As always – when doing something which the vendor did not intend you to do, do it very carefully. This data was obtained from NetApp forums, and while I do not have the original post to link (I…
I migrated to dnsmasq just yesterday, and discovered that a Windows 7 machine was hammering the server with messages like this: Feb 1 11:06:07 dns dnsmasq-dhcp[1078]: DHCPINFORM(eth0) 192.168.1.77 91:de:87:7b:e5:a8 Feb 1 11:06:07 dns dnsmasq-dhcp[1078]: DHCPACK(eth0) 192.168.1.77 91:de:87:7b:e5:a8 winpc Googling a bit, I found out this link (with an explanation). The solution is fairly simple. Add…
I love XenServer. I love the product, I believe it to be a very good answer for SMBs, and enterprises. It lacks on external support, true, but the price tag for many of the ‘external capabilities’ on VMware, for instance, are very high, so many SMBs, especially, learn to live without them. XenServer gives a…
A quick note about extracting and recreating RHEL6 or Centos6 (and their derivations) installation media components: Initrd: Extract: Archive (after you applied your changes): /images/install.img: Extract: Archive (after you applied your changes): Additional note for Anaconda installation parameters: I did not test it, however there is a boot flag called stage2= which should lead to…
The goal – connecting multiple Oracle ASM snapshots (same source LUNs, of course) to the same machine. The next process will demonstrate how to do it. Problem: ASM disks use a disk label called ASMLib to maintain access even when the logical disk path might change (like adding a LUN with a lower ID and…
