Introduction If you work with EMC Isilon clusters you will likely have a requirement at some point to check network connectivity between clusters to ensure reachability for all nodes. Now you can do it manually if you have small clusters
Introduction If you are anything like me, this is one of those things you likely do so infrequently that you forget how to do it virtually every time you need to. To save any head scratching next time here is
Introduction If you are disabling IPv6 then you likely know why you are doing it and the reasons may be varied. Disabling IPv6 only requires a brief search to find the sysctl change required but the Ubuntu bug issue is
Introduction Looking for a version 8 command. It may be here. I’ll add more over time. Clearing Events Commands required on Isilon cluster v8 Search failing IP’s across the cluster reported by zabbix View/Remove from Grid dynamic pool example: The
Introduction For when you need to bulk create bulk folders and files for testing. The command line to the rescue as always. Commands For bulk directories: For bulk files within those directories:
Problem It’s not a big one, but one I’ve run in to when creating python scripts to dump out commands with comments so others can see what the command does. To avoid the system returning a line every time that
Introduction A list of solutions for common problems working in a bash shell. Will update as I find them. Find two words existing on the same line https://stackoverflow.com/questions/6480687/grep-for-2-words-existing-on-the-same-line To grep for 2 words existing on the same line, simply do:
Introduction No real need to explain the problem too in depth. A Linux machine with multiple interfaces accepts a packet on one interface but sends the reply out of another. Not going to work in the bulk of situations. Solution
Introduction OSPFv3 authentication is quite generally quite straightforward to configure between two Cisco devices. There are some great posts regarding this topic, in fact one of the best I’ve read is by the great Jeremy Stretch. http://packetlife.net/blog/2008/sep/3/ospfv3-authentication/ The issue I
Introduction A nice brief post here. This is the operation required to increase disk size when using Linux RAID e.g. mdadm on an underlying ESXi host. Steps Increase the size of the VMDK files within ESXi Simply edit the size