Likewise / PowerBroker: DNS_ERROR_BAD_PACKET

If you use PowerBroker, formerly known as Likewise, then you may have experienced the following error message when performing the domainjoin-cli command: DNS_ERROR_BAD_PACKET. If you look online may people have come across this issue and have posted their version of a resolution. I have experienced this issue in the past as well, however my online searching did not readily turn up the solution to my problem.

So how can you resolve this error message?

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Corosync: unknown error

For environments where the use of a load balancer is not feasible because of say cost or complexity I often use Corosync to provide similar functionality. Corosync is a piece of software that allows for clustering of an application to provide high availability. One issue I have often experienced with the tool is that the error messages are not descriptive making troubleshooting difficult.

As an example, I have used Corosync to cluster syslog servers in the past. In one such environment I had a pair of syslog servers in an active-standby configuration with a VIP. While the VIP came up as expected the syslog server reported an unknown error as shown below.

So what was causing the error and how can you clear it up?

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Creating a LVM filesystem

This post is more for more reference, but hopefully someone else finds it useful as well. There are several posts online about LVM, but the directions I follow are: